forked from luck/tmp_suning_uos_patched
a44e4f3ab1
873285 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
James Clark
|
a44e4f3ab1 |
perf vendor events arm64: Fix commas so PMU event files are valid JSON
No functional change.
Add and remove extra commas in the arm64 JSON files so that the files
can be parsed and validated by other utilities such as Python that fail
to parse invalid JSON.
Committer testing:
Before:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/arm64/ampere/emag/branch.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/bus.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/cache.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/clock.json
parse error: unallowed token at this point in JSON text
[ { "PublicDescrip
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/exception.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/instruction.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/intrinsic.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/memory.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/pipeline.json
parse error: unallowed token at this point in JSON text
[ { "PublicDescrip
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/branch.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent": "BR
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/bus.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent":
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/other.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent":
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a57-a72/core-imp-def.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/armv8-recommended.json
parse error: after array element, I expect ',' or ']'
[ { "PublicDescrip
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/cavium/thunderx2/core-imp-def.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/core-imp-def.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json
parse error: invalid object key (must be a string)
[ { "EventCode": "0x00
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-hha.json
parse error: invalid object key (must be a string)
[ { "EventCode": "0x00
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-l3c.json
parse error: invalid object key (must be a string)
[ { "EventCode": "0x00
(right here) ------^
JSON is invalid
$
After:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/arm64/ampere/emag/branch.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/bus.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/cache.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/clock.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/exception.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/instruction.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/intrinsic.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/memory.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/pipeline.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/branch.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/bus.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/other.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a57-a72/core-imp-def.json
JSON is valid
tools/perf/pmu-events/arch/arm64/armv8-recommended.json
JSON is valid
tools/perf/pmu-events/arch/arm64/cavium/thunderx2/core-imp-def.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/core-imp-def.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-hha.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-l3c.json
JSON is valid
$
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kevin Mooney <kevin.mooney@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: nd@arm.com
Link: http://lore.kernel.org/lkml/20191112160342.26470-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Ian Rogers
|
e1e9b78d39 |
perf parse: Use YYABORT to clear stack after failure, plugging leaks
Using return rather than YYABORT means that the stack isn't cleared up following a failure. The change to YYABORT means the return value is 1 rather than -1, but the callers just check for a result of 0 (success). Add missing free of a list when an error occurs in event_pmu. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20191109075840.181231-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ravi Bangoria
|
ccd26741f5 |
perf tool: Provide an option to print perf_event_open args and return value
Perf record with verbose=2 already prints this information along with
whole lot of other traces which requires lot of scrolling. Introduce
an option to print only perf_event_open() arguments and return value.
Sample o/p:
$ perf --debug perf-event-open=1 record -- ls > /dev/null
------------------------------------------------------------
perf_event_attr:
size 112
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|PERIOD
read_format ID
disabled 1
inherit 1
exclude_kernel 1
mmap 1
comm 1
freq 1
enable_on_exec 1
task 1
precise_ip 3
sample_id_all 1
exclude_guest 1
mmap2 1
comm_exec 1
ksymbol 1
bpf_event 1
------------------------------------------------------------
sys_perf_event_open: pid 4308 cpu 0 group_fd -1 flags 0x8 = 4
sys_perf_event_open: pid 4308 cpu 1 group_fd -1 flags 0x8 = 5
sys_perf_event_open: pid 4308 cpu 2 group_fd -1 flags 0x8 = 6
sys_perf_event_open: pid 4308 cpu 3 group_fd -1 flags 0x8 = 8
sys_perf_event_open: pid 4308 cpu 4 group_fd -1 flags 0x8 = 9
sys_perf_event_open: pid 4308 cpu 5 group_fd -1 flags 0x8 = 10
sys_perf_event_open: pid 4308 cpu 6 group_fd -1 flags 0x8 = 11
sys_perf_event_open: pid 4308 cpu 7 group_fd -1 flags 0x8 = 12
------------------------------------------------------------
perf_event_attr:
type 1
size 112
config 0x9
watermark 1
sample_id_all 1
bpf_event 1
{ wakeup_events, wakeup_watermark } 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8
sys_perf_event_open failed, error -13
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.002 MB perf.data (9 samples) ]
Committer notes:
Just like the 'verbose' variable this new 'debug_peo_args' needs to be
added to util/python.c, since we don't link the debug.o file in the
python binding, which ended up making 'perf test python' fail with:
# perf test -v python
18: 'import perf' in python :
--- start ---
test child forked, pid 19237
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: /tmp/build/perf/python/perf.so: undefined symbol: debug_peo_args
test child finished with -1
---- end ----
'import perf' in python: FAILED!
#
After adding that new variable to util/python.c:
# perf test -v python
18: 'import perf' in python :
--- start ---
test child forked, pid 22364
test child finished with 0
---- end ----
'import perf' in python: Ok
#
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191108094128.28769-1-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
7b018e2987 |
perf map: Remove ->groups from 'struct map'
With this 'struct map' uses a bit over 3 cachelines: $ pahole -C map ~/bin/perf <SNIP> /* --- cacheline 2 boundary (128 bytes) --- */ u64 (*unmap_ip)(struct map *, u64); /* 128 8 */ struct dso * dso; /* 136 8 */ refcount_t refcnt; /* 144 4 */ /* size: 152, cachelines: 3, members: 18 */ /* sum members: 145, holes: 1, sum holes: 3 */ /* padding: 4 */ /* forced alignments: 2 */ /* last cacheline: 24 bytes */ } __attribute__((__aligned__(8))); $ We probably can move map->map/unmap_ip() moved to 'struct map_groups', that will shave more 16 bytes, getting this almost to two cachelines. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-ymlv3nzpofv2fugnjnizkrwy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
3f662fc08d |
perf map: Combine maps__fixup_overlappings with its only use
In the process we can kill some of the struct map->groups usage, trying to get rid of this per-full struct map fields getting in the way of sharing a map across father/parent processes. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-e50eqtqw3za24vmbjnqmmcs6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
94e44b9ca5 |
perf annotate: Stop using map->groups, use map_symbol->mg instead
These were the last uses of map->groups, next cset will nuke it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-n3g0foos7l7uxq9nar0zo0vj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
08f6680e62 |
perf tools: Add a 'struct map_groups' pointer to 'struct map_symbol'
And fill it whenever we setup a a 'struct map_symbol', now we need to use it, next cset. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-fzwfcnddenz1o7uj1fzw3g46@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
93fcce96c7 |
perf symbols: Use kmaps(map)->machine when we know its a kernel map
And then stop using map->groups to achieve that.
To test that that branch is being taken, probe the function that is only
called from there and then run something like 'perf top' in another
xterm:
# perf probe -x ~/bin/perf machine__map_x86_64_entry_trampolines
Added new event:
probe_perf:machine__map_x86_64_entry_trampolines (on machine__map_x86_64_entry_trampolines in /home/acme/bin/perf)
You can now use it in all perf tools, such as:
perf record -e probe_perf:machine__map_x86_64_entry_trampolines -aR sleep 1
# perf trace -e probe_perf:*
0.000 bash/10614 probe_perf:machine__map_x86_64_entry_trampolines(__probe_ip: 5224944)
^C#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-lgrrzdxo2p9liq2keivcg887@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
d46a4cdf49 |
pref tools: Make 'struct addr_map_symbol' contain 'struct map_symbol'
So that we pass that substructure around and with it consolidate lots of functions that receive a (map, symbol) pair and now can receive just a 'struct map_symbol' pointer. This further paves the way to add 'struct map_groups' to 'struct map_symbol' so that we can have all we need for annotation so that we can ditch 'struct map'->groups, i.e. have the map_groups pointer in a more central place, avoiding the pointer in the 'struct map' that have tons of instances. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-fs90ttd9q12l7989fo7pw81q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
5f0fef8ac3 |
perf callchain: Use 'struct map_symbol' in 'struct callchain_cursor_node'
To ease passing around map+symbol, just like done for other parts of the tree recently. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
c1529738f5 |
perf unwind: Use 'struct map_symbol' in 'struct unwind_entry'
To help in passing that info around to callchain routines that, for the same reason, are moving to use 'struct map_symbol'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-epsiibeprpxa8qpwji47uskc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
2975489458 |
perf annotate: Pass a 'map_symbol' in places receiving a pair of 'map' and 'symbol' pointers
We are already passing things like: symbol__annotate(ms->sym, ms->map, ...) So shorten the signature of such functions to receive the 'map_symbol' pointer. This also paves the way to having the 'struct map_groups' pointer in the 'struct map_symbol' so that we can get rid of 'struct map'->groups. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-23yx8v1t41nzpkpi7rdrozww@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
d3a022cbdc |
perf tools: Add map_groups to 'struct addr_location'
From there we can get al->mg->machine, so replace that field with the more useful 'struct map_groups' that for now we're obtaining from al->map->groups, and that is one thing getting into the way of maps being fully shareable. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-4qdducrm32tgrjupcp0kjh1e@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
9d355b381b |
perf map_groups: Pass the object to map_groups__find_ams()
We were just passing a map to look for and reuse its map->groups member, but the idea is that this is going away, as a map can be in multiple rb_trees when being reused via a map_node, so do as all the other map_groups methods and pass as its first arg the object being operated on. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-nmi2pbggqloogwl6vxrvex5a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
f2baa060cd |
perf symbols: Stop using map->groups, we can use kmaps instead
To test that that function is being called I just added a probe on that
place, enabled it via 'perf trace' asking for at most 16 levels of
backtraces, system wide, and then ran 'perf top' on another xterm,
voilà:
# perf probe -x ~/bin/perf dso__process_kernel_symbol
Added new event:
probe_perf:dso__process_kernel_symbol (on dso__process_kernel_symbol in /home/acme/bin/perf)
You can now use it in all perf tools, such as:
perf record -e probe_perf:dso__process_kernel_symbol -aR sleep 1
# perf trace -e probe_perf:dso__process_kernel_symbol/max-stack=16/ --max-events=2
# perf trace -e probe_perf:dso__process_kernel_symbol/max-stack=16/ --max-events=2
0.000 :17345/17345 probe_perf:dso__process_kernel_symbol(__probe_ip: 5680224)
dso__process_kernel_symbol (/home/acme/bin/perf)
dso__load_vmlinux (/home/acme/bin/perf)
dso__load_vmlinux_path (/home/acme/bin/perf)
dso__load (/home/acme/bin/perf)
map__load (/home/acme/bin/perf)
thread__find_map (/home/acme/bin/perf)
machine__resolve (/home/acme/bin/perf)
deliver_event (/home/acme/bin/perf)
__ordered_events__flush.part.0 (/home/acme/bin/perf)
process_thread (/home/acme/bin/perf)
start_thread (/usr/lib64/libpthread-2.29.so)
0.064 :17345/17345 probe_perf:dso__process_kernel_symbol(__probe_ip: 5680224)
dso__process_kernel_symbol (/home/acme/bin/perf)
dso__load_vmlinux (/home/acme/bin/perf)
dso__load_vmlinux_path (/home/acme/bin/perf)
dso__load (/home/acme/bin/perf)
map__load (/home/acme/bin/perf)
thread__find_map (/home/acme/bin/perf)
machine__resolve (/home/acme/bin/perf)
deliver_event (/home/acme/bin/perf)
__ordered_events__flush.part.0 (/home/acme/bin/perf)
process_thread (/home/acme/bin/perf)
start_thread (/usr/lib64/libpthread-2.29.so)
#
# perf stat -e probe_perf:dso__process_kernel_symbol
^C
Performance counter stats for 'system wide':
107,308 probe_perf:dso__process_kernel_symbol
8.215399813 seconds time elapsed
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-5fy66x5hr5ct9pmw84jkiwvm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
de90d513b2 |
perf map: Use map->dso->kernel + map__kmaps() in map__kmaps()
Its equivalent to using map->groups to obtain the machine struct. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-bdbazuj4ggrmzxdviaqdrdwh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ingo Molnar
|
56b2147f34 |
perf/core improvements and fixes:
perf report:
Jin Yao:
- Introduce --total-cycles, for basic block profiling, further using data
obtained from LBR, an example should suffice:
# perf record -b
^C[ perf record: Woken up 595 times to write data ]
[ perf record: Captured and wrote 156.672 MB perf.data (196873 samples) ]
# perf evlist -v
cycles: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|CPU|PERIOD|BRANCH_STACK, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1, branch_sample_type: ANY
# perf report --total-cycles --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
# Total Lost Samples: 0
#
# Samples: 6M of event 'cycles'
# Event count (approx.): 6299936
#
# Sampled Sampled Avg Avg
# Cycles% Cycles Cycles% Cycles [Program Block Range] Shared Object
# ....... ...... ....... ..... .................................... ................
#
2.17% 1.7M 0.08% 607 [compiler.h:199 -> common.c:221] [kernel.vmlinux]
0.72% 544.5K 0.03% 230 [entry_64.S:657 -> entry_64.S:662] [kernel.vmlinux]
0.56% 541.8K 0.09% 672 [compiler.h:199 -> common.c:300] [kernel.vmlinux]
0.39% 293.2K 0.01% 104 [list_debug.c:43 -> list_debug.c:61] [kernel.vmlinux]
0.36% 278.6K 0.03% 272 [entry_64.S:1289 -> entry_64.S:1308] [kernel.vmlinux]
perf record:
Adrian Hunter:
- Allow storing perf.data in a directory together with a copy of /proc/kcore.
Jiwei Sun:
- Add support for limit perf output file size, i.e.:
# perf record --all-cpus -F 10000 --max-size=4M sleep 10h
[ perf record: perf size limit reached (4097 KB), stopping session ]
[ perf record: Woken up 6 times to write data ]
[ perf record: Captured and wrote 4.048 MB perf.data (54094 samples) ]
Terminated
# ls -lah perf.data
-rw-------. 1 root root 4.1M Nov 7 15:27 perf.data
#
perf stat:
Jiri Olsa:
- Add --per-node agregation support:
In live mode:
# perf stat -a -I 1000 -e cycles --per-node
# time node cpus counts unit events
1.000542550 N0 20 6,202,097 cycles
1.000542550 N1 20 639,559 cycles
2.002040063 N0 20 7,412,495 cycles
2.002040063 N1 20 2,185,577 cycles
3.003451699 N0 20 6,508,917 cycles
3.003451699 N1 20 765,607 cycles
...
Or in the record/report stat session:
# perf stat record -a -I 1000 -e cycles
# time counts unit events
1.000536937 10,008,468 cycles
2.002090152 9,578,539 cycles
3.003625233 7,647,869 cycles
4.005135036 7,032,086 cycles
^C 4.340902364 3,923,893 cycles
# perf stat report --per-node
# time node cpus counts unit events
1.000536937 N0 20 9,355,086 cycles
1.000536937 N1 20 653,382 cycles
2.002090152 N0 20 7,712,838 cycles
2.002090152 N1 20 1,865,701 cycles
...
perf probe:
Masami Hiramatsu:
Various fixes related to recent additions to the DWARF format:
- Fix to find range-only function instance
- Walk function lines in lexical blocks
- Fix to show function entry line as probe-able
- Fix wrong address verification
- Fix to probe a function which has no entry pc
- Fix to probe an inline function which has no entry pc
- Fix to list probe event with correct line number
- Fix to show inlined function callsite without entry_pc
- Fix to show ranges of variables in functions without entry_pc
- Return a better scope DIE if there is no best scope
- Skip end-of-sequence and non statement lines
- Filter out instances except for inlined subroutine and subprogram
- Fix to show calling lines of inlined functions
- Skip overlapped location on searching variables
perf inject:
Adrian Hunter:
- Do not strip evsels with --strip, as they are needed for create_gcov
(see the autofdo example in tools/perf/Documentation/intel-pt.txt).
Intel PT:
Adrian Hunter:
- Intel PT uses an auxtrace_cache to store the results of code-walking, to avoid
repeated decoding. Add an auxtrace_cache__remove to handle text poke events.
core:
Andi Kleen:
- Always preserve errno while cleaning up perf_event_open failures.
llvm:
Arnaldo Carvalho de Melo:
- No need to tell that the request for saving a .o file for BPF events, as
expressed in ~/.perfconfig was satisfied, make that a debug message.
perf vendor events:
Intel:
Haiyan Song:
- Update CascadelakeX events to v1.05.
- Update all the Intel JSON metrics from TMAM 3.6.
Treewide:
Ian Rogers:
- Improve error paths, plugging leaks found using LLVM tools
such as libFuzzer.
jevents:
Yunfeng Ye:
- Fix resource leak in process_mapfile() and main()
perf kvm:
Igor Lubashev:
- Use evlist layer api when possible.
libsubcmd:
James Clark:
- Move EXTRA_FLAGS to the end to allow overriding existing flags.
- Use -O0 with DEBUG=1
perf diff:
Jin Yao:
- Don't use hack to skip column length calculation
CoreSight ETM:
Leo yan:
- Fix definition of macro TO_CS_QUEUE_NR
ARM64:
John Garry:
- Do not try to include libelf header files when its feature detection
failed, fixing the cross build for ARM64.
perf tests:
Leo Yan:
- Fix out of bounds memory access in the backward ring buffer test.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCXcRowQAKCRCyPKLppCJ+
JxHcAQCTtl9N3zkNjLWif1i6AGKNU9TzYpup+jDR5J83ggLqgQD+O931nR9wXUOe
9bDUr45cNw3ZkRbc1558hKPWIsceJgU=
=Rko+
-----END PGP SIGNATURE-----
Merge tag 'perf-core-for-mingo-5.5-20191107' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
perf report:
Jin Yao:
- Introduce --total-cycles, for basic block profiling, further using data
obtained from LBR, an example should suffice:
# perf record -b
^C[ perf record: Woken up 595 times to write data ]
[ perf record: Captured and wrote 156.672 MB perf.data (196873 samples) ]
# perf evlist -v
cycles: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|CPU|PERIOD|BRANCH_STACK, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1, branch_sample_type: ANY
# perf report --total-cycles --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
# Total Lost Samples: 0
#
# Samples: 6M of event 'cycles'
# Event count (approx.): 6299936
#
# Sampled Sampled Avg Avg
# Cycles% Cycles Cycles% Cycles [Program Block Range] Shared Object
# ....... ...... ....... ..... .................................... ................
#
2.17% 1.7M 0.08% 607 [compiler.h:199 -> common.c:221] [kernel.vmlinux]
0.72% 544.5K 0.03% 230 [entry_64.S:657 -> entry_64.S:662] [kernel.vmlinux]
0.56% 541.8K 0.09% 672 [compiler.h:199 -> common.c:300] [kernel.vmlinux]
0.39% 293.2K 0.01% 104 [list_debug.c:43 -> list_debug.c:61] [kernel.vmlinux]
0.36% 278.6K 0.03% 272 [entry_64.S:1289 -> entry_64.S:1308] [kernel.vmlinux]
perf record:
Adrian Hunter:
- Allow storing perf.data in a directory together with a copy of /proc/kcore.
Jiwei Sun:
- Add support for limit perf output file size, i.e.:
# perf record --all-cpus -F 10000 --max-size=4M sleep 10h
[ perf record: perf size limit reached (4097 KB), stopping session ]
[ perf record: Woken up 6 times to write data ]
[ perf record: Captured and wrote 4.048 MB perf.data (54094 samples) ]
Terminated
# ls -lah perf.data
-rw-------. 1 root root 4.1M Nov 7 15:27 perf.data
#
perf stat:
Jiri Olsa:
- Add --per-node agregation support:
In live mode:
# perf stat -a -I 1000 -e cycles --per-node
# time node cpus counts unit events
1.000542550 N0 20 6,202,097 cycles
1.000542550 N1 20 639,559 cycles
2.002040063 N0 20 7,412,495 cycles
2.002040063 N1 20 2,185,577 cycles
3.003451699 N0 20 6,508,917 cycles
3.003451699 N1 20 765,607 cycles
...
Or in the record/report stat session:
# perf stat record -a -I 1000 -e cycles
# time counts unit events
1.000536937 10,008,468 cycles
2.002090152 9,578,539 cycles
3.003625233 7,647,869 cycles
4.005135036 7,032,086 cycles
^C 4.340902364 3,923,893 cycles
# perf stat report --per-node
# time node cpus counts unit events
1.000536937 N0 20 9,355,086 cycles
1.000536937 N1 20 653,382 cycles
2.002090152 N0 20 7,712,838 cycles
2.002090152 N1 20 1,865,701 cycles
...
perf probe:
Masami Hiramatsu:
Various fixes related to recent additions to the DWARF format:
- Fix to find range-only function instance
- Walk function lines in lexical blocks
- Fix to show function entry line as probe-able
- Fix wrong address verification
- Fix to probe a function which has no entry pc
- Fix to probe an inline function which has no entry pc
- Fix to list probe event with correct line number
- Fix to show inlined function callsite without entry_pc
- Fix to show ranges of variables in functions without entry_pc
- Return a better scope DIE if there is no best scope
- Skip end-of-sequence and non statement lines
- Filter out instances except for inlined subroutine and subprogram
- Fix to show calling lines of inlined functions
- Skip overlapped location on searching variables
perf inject:
Adrian Hunter:
- Do not strip evsels with --strip, as they are needed for create_gcov
(see the autofdo example in tools/perf/Documentation/intel-pt.txt).
Intel PT:
Adrian Hunter:
- Intel PT uses an auxtrace_cache to store the results of code-walking, to avoid
repeated decoding. Add an auxtrace_cache__remove to handle text poke events.
core:
Andi Kleen:
- Always preserve errno while cleaning up perf_event_open failures.
llvm:
Arnaldo Carvalho de Melo:
- No need to tell that the request for saving a .o file for BPF events, as
expressed in ~/.perfconfig was satisfied, make that a debug message.
perf vendor events:
Intel:
Haiyan Song:
- Update CascadelakeX events to v1.05.
- Update all the Intel JSON metrics from TMAM 3.6.
Treewide:
Ian Rogers:
- Improve error paths, plugging leaks found using LLVM tools
such as libFuzzer.
jevents:
Yunfeng Ye:
- Fix resource leak in process_mapfile() and main()
perf kvm:
Igor Lubashev:
- Use evlist layer api when possible.
libsubcmd:
James Clark:
- Move EXTRA_FLAGS to the end to allow overriding existing flags.
- Use -O0 with DEBUG=1
perf diff:
Jin Yao:
- Don't use hack to skip column length calculation
CoreSight ETM:
Leo yan:
- Fix definition of macro TO_CS_QUEUE_NR
ARM64:
John Garry:
- Do not try to include libelf header files when its feature detection
failed, fixing the cross build for ARM64.
perf tests:
Leo Yan:
- Fix out of bounds memory access in the backward ring buffer test.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
||
|
Zheng Yongjun
|
8f05c1ff8b |
perf/x86/amd: Remove set but not used variable 'active'
'-Wunused-but-set-variable' triggers this warning:
arch/x86/events/amd/core.c: In function amd_pmu_handle_irq:
arch/x86/events/amd/core.c:656:6: warning: variable active set but not used [-Wunused-but-set-variable]
GCC is right, 'active' is not used anymore.
This variable was introduced earlier this year and then removed in:
|
||
|
Ingo Molnar
|
1ca7feb590 |
Linux 5.4-rc7
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl3IqJQeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGOiUH+gOEDwid5OODaFAd CggXugdFIlBZefKqGVNW5sjgX8pxFWHXuEMC8iNb6QXtQZdFrI6LFf9hhUDmzQtm 6y1LPxxEiTZjObMEsBNylb7tyzgujFHcAlp0Zro3w/HLCqmYTSP3FF46i2u6KZfL XhkpM4X7R7qxlfpdhlfESv/ElRGocZe6SwXfC7pcPo5flFcmkdu9ijqhNd/6CZ/h Nf9rTsD/wEDVUelFbgVN+LJzlaB0tsyc4Zbof07n8OsFZjhdEOop8gfM/kTBLcyY 6bh66SfDScdsNnC/l8csbPjSZRx+i+nQs67DyhGNnsSAFgHBZdC4Tb/2mDCwhCLR dUvuYZc= =1N6F -----END PGP SIGNATURE----- Merge tag 'v5.4-rc7' into perf/core, to pick up fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Linus Torvalds
|
31f4f5b495 | Linux 5.4-rc7 | ||
|
Linus Torvalds
|
4486695680 |
ARM: SoC fixes
A set of fixes that have trickled in over the last couple of weeks:
- MAINTAINER update for Cavium/Marvell ThunderX2
- stm32 tweaks to pinmux for Joystick/Camera, and RAM allocation for CAN
interfaces
- i.MX fixes for voltage regulator GPIO mappings, fixes voltage scaling
issues
- More i.MX fixes for various issues on i.MX eval boards: interrupt
storm due to u-boot leaving pins in new states, fixing power button
config, a couple of compatible-string corrections.
- Powerdown and Suspend/Resume fixes for Allwinner A83-based tablets
- A few documentation tweaks and a fix of a memory leak in the reset
subsystem
-----BEGIN PGP SIGNATURE-----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=Ei7j
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A set of fixes that have trickled in over the last couple of weeks:
- MAINTAINER update for Cavium/Marvell ThunderX2
- stm32 tweaks to pinmux for Joystick/Camera, and RAM allocation for
CAN interfaces
- i.MX fixes for voltage regulator GPIO mappings, fixes voltage
scaling issues
- More i.MX fixes for various issues on i.MX eval boards: interrupt
storm due to u-boot leaving pins in new states, fixing power button
config, a couple of compatible-string corrections.
- Powerdown and Suspend/Resume fixes for Allwinner A83-based tablets
- A few documentation tweaks and a fix of a memory leak in the reset
subsystem"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: update Cavium ThunderX2 maintainers
ARM: dts: stm32: change joystick pinctrl definition on stm32mp157c-ev1
ARM: dts: stm32: remove OV5640 pinctrl definition on stm32mp157c-ev1
ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
arm64: dts: zii-ultra: fix ARM regulator GPIO handle
ARM: sunxi: Fix CPU powerdown on A83T
ARM: dts: sun8i-a83t-tbs-a711: Fix WiFi resume from suspend
arm64: dts: imx8mn: fix compatible string for sdma
arm64: dts: imx8mm: fix compatible string for sdma
reset: fix reset_control_ops kerneldoc comment
ARM: dts: imx6-logicpd: Re-enable SNVS power key
soc: imx: gpc: fix initialiser format
ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts
arm64: dts: ls1028a: fix a compatible issue
reset: fix reset_control_get_exclusive kerneldoc comment
reset: fix reset_control_lookup kerneldoc comment
reset: fix of_reset_control_get_count kerneldoc comment
reset: fix of_reset_simple_xlate kerneldoc comment
reset: Fix memory leak in reset_control_array_put()
|
||
|
Linus Torvalds
|
dd892625d0 |
IIO fixes / Staging driver for 5.4-rc7
Here is a mix of a number of IIO driver fixes for 5.4-rc7, and a whole new staging driver. The IIO fixes resolve some reported issues, all are tiny. The staging driver addition is the vboxsf filesystem, which is the VirtualBox guest shared folder code. Hans has been trying to get filesystem reviewers to review the code for many months now, and Christoph finally said to just merge it in staging now as it is stand-alone and the filesystem people can review it easier over time that way. I know it's late for this big of an addition, but it is stand-alone. The code has been in linux-next for a while, long enough to pick up a few tiny fixes for it already so people are looking at it. All of these have been in linux-next with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXcgvVg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ylt6gCdG1hmZiOXhmoO1HBBFILqJkrzEVEAn3amZIJJ n0gz5/FDfQVFGl/PpKCE =u/mY -----END PGP SIGNATURE----- Merge tag 'staging-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull IIO fixes and staging driver from Greg KH: "Here is a mix of a number of IIO driver fixes for 5.4-rc7, and a whole new staging driver. The IIO fixes resolve some reported issues, all are tiny. The staging driver addition is the vboxsf filesystem, which is the VirtualBox guest shared folder code. Hans has been trying to get filesystem reviewers to review the code for many months now, and Christoph finally said to just merge it in staging now as it is stand-alone and the filesystem people can review it easier over time that way. I know it's late for this big of an addition, but it is stand-alone. The code has been in linux-next for a while, long enough to pick up a few tiny fixes for it already so people are looking at it. All of these have been in linux-next with no reported issues" * tag 'staging-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: Fix error return code in vboxsf_fill_super() staging: vboxsf: fix dereference of pointer dentry before it is null checked staging: vboxsf: Remove unused including <linux/version.h> staging: Add VirtualBox guest shared folder (vboxsf) support iio: adc: stm32-adc: fix stopping dma iio: imu: inv_mpu6050: fix no data on MPU6050 iio: srf04: fix wrong limitation in distance measuring iio: imu: adis16480: make sure provided frequency is positive |
||
|
Linus Torvalds
|
3de2a3e937 |
Char/Misc driver fixes for 5.4-rc7
Here are a number of late-arrival driver fixes for issues reported for some char/misc drivers for 5.4-rc7 These all come from the different subsystem/driver maintainers as things that they had reports for and wanted to see fixed. All of these have been in linux-next with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXcguaA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yk9agCdHawCyOWaCfWrUF+66DfI0ql5HhQAoKI0n4yT 7N8GuJ5KsVKmtkkg9Oww =CZY+ -----END PGP SIGNATURE----- Merge tag 'char-misc-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are a number of late-arrival driver fixes for issues reported for some char/misc drivers for 5.4-rc7 These all come from the different subsystem/driver maintainers as things that they had reports for and wanted to see fixed. All of these have been in linux-next with no reported issues" * tag 'char-misc-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: intel_th: pci: Add Jasper Lake PCH support intel_th: pci: Add Comet Lake PCH support intel_th: msu: Fix possible memory leak in mode_store() intel_th: msu: Fix overflow in shift of an unsigned int intel_th: msu: Fix missing allocation failure check on a kstrndup intel_th: msu: Fix an uninitialized mutex intel_th: gth: Fix the window switching sequence soundwire: slave: fix scanf format soundwire: intel: fix intel_register_dai PDI offsets and numbers interconnect: Add locking in icc_set_tag() interconnect: qcom: Fix icc_onecell_data allocation soundwire: depend on ACPI || OF soundwire: depend on ACPI thunderbolt: Drop unnecessary read when writing LC command in Ice Lake thunderbolt: Fix lockdep circular locking depedency warning thunderbolt: Read DP IN adapter first two dwords in one go |
||
|
Linus Torvalds
|
a5871fcba4 |
configfs regression fix for 5.4-rc
- fix a regression from this merge window in the configfs
symlink handling (Honggang Li)
-----BEGIN PGP SIGNATURE-----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=kgn+
-----END PGP SIGNATURE-----
Merge tag 'configfs-for-5.4-2' of git://git.infradead.org/users/hch/configfs
Pull configfs regression fix from Christoph Hellwig:
"Fix a regression from this merge window in the configfs symlink
handling (Honggang Li)"
* tag 'configfs-for-5.4-2' of git://git.infradead.org/users/hch/configfs:
configfs: calculate the depth of parent item
|
||
|
Linus Torvalds
|
9805a68371 |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of fixes for x86:
- Make the tsc=reliable/nowatchdog command line parameter work again.
It was broken with the introduction of the early TSC clocksource.
- Prevent the evaluation of exception stacks before they are set up.
This causes a crash in dumpstack because the stack walk termination
gets screwed up.
- Prevent a NULL pointer dereference in the rescource control file
system.
- Avoid bogus warnings about APIC id mismatch related to the LDR
which can happen when the LDR is not in use and therefore not
initialized. Only evaluate that when the APIC is in logical
destination mode"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tsc: Respect tsc command line paraemeter for clocksource_tsc_early
x86/dumpstack/64: Don't evaluate exception stacks before setup
x86/apic/32: Avoid bogus LDR warnings
x86/resctrl: Prevent NULL pointer dereference when reading mondata
|
||
|
Linus Torvalds
|
621084cd3d |
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"A small set of fixes for timekeepoing and clocksource drivers:
- VDSO data was updated conditional on the availability of a VDSO
capable clocksource. This causes the VDSO functions which do not
depend on a VDSO capable clocksource to operate on stale data.
Always update unconditionally.
- Prevent a double free in the mediatek driver
- Use the proper helper in the sh_mtu2 driver so it won't attempt to
initialize non-existing interrupts"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping/vsyscall: Update VDSO data unconditionally
clocksource/drivers/sh_mtu2: Do not loop using platform_get_irq_by_name()
clocksource/drivers/mediatek: Fix error handling
|
||
|
Linus Torvalds
|
81388c2b3f |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"Two fixes for scheduler regressions:
- Plug a subtle race condition which was introduced with the rework
of the next task selection functionality. The change of task
properties became unprotected which can be observed inconsistently
causing state corruption.
- A trivial compile fix for CONFIG_CGROUPS=n"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix pick_next_task() vs 'change' pattern race
sched/core: Fix compilation error when cgroup not selected
|
||
|
Linus Torvalds
|
b584a17628 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Thomas Gleixner: - Fix the time sorting algorithm which was broken due to truncation of big numbers - Fix the python script generator fail caused by a broken tracepoint array iterator * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Fix time sorting perf tools: Remove unused trace_find_next_event() perf scripting engines: Iterate on tep event arrays directly |
||
|
Linus Torvalds
|
ffba65ea24 |
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixlet from Thomas Gleixner: "A trivial fix for a kernel doc regression where an argument change was not reflected in the documentation" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irq/irqdomain: Update __irq_domain_alloc_fwnode() function documentation |
||
|
Linus Torvalds
|
20c7e29684 |
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull stacktrace fix from Thomas Gleixner: "A small fix for a stacktrace regression. Saving a stacktrace for a foreign task skipped an extra entry which makes e.g. the output of /proc/$PID/stack incomplete" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: stacktrace: Don't skip first entry on noncurrent tasks |
||
|
Linus Torvalds
|
79a64063a8 |
small fix for an smb3 reconnect bug
-----BEGIN PGP SIGNATURE----- iQGzBAABCAAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAl3HowUACgkQiiy9cAdy T1GBFwwAsUHGIXIeV5gWNuy7XhTYOkH9OsSEOJIT+N/3d/L2QrIcfQ0x4n/RauC9 S654xqdsPljti231e7LgeV0fZlayFg99YeNGBkorGk/UBxv5pYzVqqUyyMnUhunI /TCC4SPzhcKyLjrei/pZ2lTkZoZe34WfAq36E1p5d758g44ypLSlIcMUUznmhOKE B4ATOI5wV5zqHUh4pZSkLWMQ/D33XapQZDFJweol6YEaPCz2NjQfsL/MRJ/pg3nL Vh7v1jdHiPMbMhqV9pqsmkBSOci+WMQTqwz4yXiKJgKRsOjrcp+64Tpl+yMDfNfk 1AsW7A2oHxbWkmSwDN14lNMPqGftREJww9pf40BaYGzTSKUvyI7VZNULT9kLCtSQ 0xvVhrAMtHZSFeDqIf0ndcPS5WXWlHrTRDx25fgFHid3ZkDh5tLcNgODRZMih/xy KvdHlKm2y36jdvDxXMoNAna7iwgKEOtYYk/X9oq82icI+6S0p46HEcShx1rqgDXL KAWDdnsb =8yoq -----END PGP SIGNATURE----- Merge tag '5.4-rc7-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6 Pull cifs fix from Steve French: "Small fix for an smb3 reconnect bug (also marked for stable)" * tag '5.4-rc7-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6: SMB3: Fix persistent handles reconnect |
||
|
Corentin Labbe
|
820b7c717f |
lib: Remove select of inexistant GENERIC_IO
config option GENERIC_IO was removed but still selected by lib/kconfig
This patch finish the cleaning.
Fixes:
|
||
|
Linus Torvalds
|
4763c0894a |
Pin control fixes for v5.4:
- Fix glitch risks in the Intel GPIO - Fix the Intel Cherryview valid irq mask calculation. - Allocate the Intel Cherryview irqchip dynamically. - Fix the valid mask init sequency on the ST STMFX driver. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl3HVugACgkQQRCzN7AZ XXNcOw//UAEO6DnTc4+fr46Al4hsgShxlHk0URPEkMWZI7t+R6bs9icGGDOoejWS n7/Fpd7ChpYqtsRQD4sc1/hJwXxoUJFX0xzP7dI/PmT+st0OULAHjokoqK3RtERe 1shwAQq1NosIlwmsy+ZOqQwXUfq6RAnnVPblt6+VeG7Sc9bNHnDcg7d58GVFl7C3 S6D2v59pPMAL9JU+hQDQ8DiODXLk2k9k7Vtoq8bYLei0PMKdt/7I1kJjELPfghiA PMLmtTztygB27fUiFVVGVcCtaivLXqtI83yi9uYnY2rQ4Oa+zxuuej5rUL+TwybK P+XKJDNUeg/l6+wdkQXN8rJXkEXcU+Sms0HZmaYkML4l/6Oh4JtjDhij1KPqNjhY ufO7mnf2zkfooLD8rv9YC50yYKX3vZT4b5SrPnvd4lG2/C3hiZozwmAXdYtLgoqS BU9c2kfzIKHiFgBCJCnkyDesaGCfbkw5rDh1R4tSpABbShS242EdAYL0ZCuzjEsc 9iR4Jbi03mhCINjkFDbx5PnAZk8cJUeSmKFeWxDuZoUh3gU0VoPHlH533k6FsnLG Kck2sBPhpPRl/b/64jF21UDI1g3W0gxQet+hGCSYzcA/QQ0fo5+VKpGyTSvxzDnl LcbccAELH3qdzMDajtyEXaIeOv8huG9iBzS0pUibLbAsPqqrMhk= =fkcG -----END PGP SIGNATURE----- Merge tag 'pinctrl-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: - Fix glitch risks in the Intel GPIO - Fix the Intel Cherryview valid irq mask calculation. - Allocate the Intel Cherryview irqchip dynamically. - Fix the valid mask init sequency on the ST STMFX driver. * tag 'pinctrl-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: stmfx: fix valid_mask init sequence pinctrl: cherryview: Allocate IRQ chip dynamic pinctrl: cherryview: Fix irq_valid_mask calculation pinctrl: intel: Avoid potential glitches if pin is in GPIO mode |
||
|
Linus Torvalds
|
00aff68362 |
for-5.4-rc6-tag
-----BEGIN PGP SIGNATURE-----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=CZxY
-----END PGP SIGNATURE-----
Merge tag 'for-5.4-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few regressions and fixes for stable.
Regressions:
- fix a race leading to metadata space leak after task received a
signal
- un-deprecate 2 ioctls, marked as deprecated by mistake
Fixes:
- fix limit check for number of devices during chunk allocation
- fix a race due to double evaluation of i_size_read inside max()
macro, can cause a crash
- remove wrong device id check in tree-checker"
* tag 'for-5.4-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: un-deprecate ioctls START_SYNC and WAIT_SYNC
btrfs: save i_size to avoid double evaluation of i_size_read in compress_file_range
Btrfs: fix race leading to metadata space leak after task received signal
btrfs: tree-checker: Fix wrong check on max devid
btrfs: Consider system chunk array size for new SYSTEM chunks
|
||
|
Linus Torvalds
|
4aba1a7ed5 |
linux-watchdog 5.4-rc7 tag
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iEYEABECAAYFAl3GikoACgkQ+iyteGJfRsoJrwCeKcV3lXSF4pnmHPK9yjP3bL5Y leMAnjgQrVHljuShcBCzgNgb1I/Ln/BB =ziku -----END PGP SIGNATURE----- Merge tag 'linux-watchdog-5.4-rc7' of git://www.linux-watchdog.org/linux-watchdog Pull watchdog fixes from Wim Van Sebroeck: - cpwd: fix build regression - pm8916_wdt: fix pretimeout registration flow - meson: Fix the wrong value of left time - imx_sc_wdt: Pretimeout should follow SCU firmware format - bd70528: Add MODULE_ALIAS to allow module auto loading * tag 'linux-watchdog-5.4-rc7' of git://www.linux-watchdog.org/linux-watchdog: watchdog: bd70528: Add MODULE_ALIAS to allow module auto loading watchdog: imx_sc_wdt: Pretimeout should follow SCU firmware format watchdog: meson: Fix the wrong value of left time watchdog: pm8916_wdt: fix pretimeout registration flow watchdog: cpwd: fix build regression |
||
|
Linus Torvalds
|
0058b0a506 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) BPF sample build fixes from Björn Töpel
2) Fix powerpc bpf tail call implementation, from Eric Dumazet.
3) DCCP leaks jiffies on the wire, fix also from Eric Dumazet.
4) Fix crash in ebtables when using dnat target, from Florian Westphal.
5) Fix port disable handling whne removing bcm_sf2 driver, from Florian
Fainelli.
6) Fix kTLS sk_msg trim on fallback to copy mode, from Jakub Kicinski.
7) Various KCSAN fixes all over the networking, from Eric Dumazet.
8) Memory leaks in mlx5 driver, from Alex Vesker.
9) SMC interface refcounting fix, from Ursula Braun.
10) TSO descriptor handling fixes in stmmac driver, from Jose Abreu.
11) Add a TX lock to synchonize the kTLS TX path properly with crypto
operations. From Jakub Kicinski.
12) Sock refcount during shutdown fix in vsock/virtio code, from Stefano
Garzarella.
13) Infinite loop in Intel ice driver, from Colin Ian King.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
ixgbe: need_wakeup flag might not be set for Tx
i40e: need_wakeup flag might not be set for Tx
igb/igc: use ktime accessors for skb->tstamp
i40e: Fix for ethtool -m issue on X722 NIC
iavf: initialize ITRN registers with correct values
ice: fix potential infinite loop because loop counter being too small
qede: fix NULL pointer deref in __qede_remove()
net: fix data-race in neigh_event_send()
vsock/virtio: fix sock refcnt holding during the shutdown
net: ethernet: octeon_mgmt: Account for second possible VLAN header
mac80211: fix station inactive_time shortly after boot
net/fq_impl: Switch to kvmalloc() for memory allocation
mac80211: fix ieee80211_txq_setup_flows() failure path
ipv4: Fix table id reference in fib_sync_down_addr
ipv6: fixes rt6_probe() and fib6_nh->last_probe init
net: hns: Fix the stray netpoll locks causing deadlock in NAPI path
net: usb: qmi_wwan: add support for DW5821e with eSIM support
CDC-NCM: handle incomplete transfer of MTU
nfc: netlink: fix double device reference drop
NFC: st21nfca: fix double free
...
|
||
|
Linus Torvalds
|
5cb8418cb5 |
for-linus-2019-11-08
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl3F+DIQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpkVmD/9FIa092Q6obga0RqA16GlbI85tgtNyRFZU neIO/g9R3G/uBTGbiUeXHXHDz9CqUXIRYX7pmI2u0b07iGLRz8oUsOsgyVEfCMen VitqwkJJAZ9j9OifyKpLYCZX9ulVDWX5hEz/vm2cNWDkjCbOpXvRuQmkXEzp7RNM F7K25PpGLvJHfqC90q9FXXxNDlB2i1M/rh5I7eUqhb6rHmzfJGKCd+H80t+REoB1 iXAygPj86agQKLOUKZtJjXUjq9Ol/0FD+OKY+eP3EfVv/FJvIeWWYe78WplxJpRD BYb9dhLMCSo619WVVy4hNYCPjSfPKVT2cO5QJmVRpgOI1urFuTNgNoIiw06AgvkZ 09vrlrJZ5A7eFEppuAFQC4WRYKWCQCQfq8wxt2iGUivXgHfskjJ7qJz1Mh5Nlxsr JGm1hSVw9UCBzjqC75K2CR+vVt4T8ovEaizPFvzVj6lQ0lRTmSchisxbXzTdevOn kFvBOntBdpeSq/CwZ0x5PDP4AbRsgH3ny47LCJoEpFZlxlOLuEB/dAx564dn6ZgZ rRz6mKU7rlO7brrkW+DbRZ0XiOn5qzN6FrcSGX1DBzc4+hMus/5PPjv8Gk+Wo1PU 388mu6N6DObSjw1ij1AqkwyzudmbrziKM4isJY4I72I0YGSq9cuG5VXgM2GqbGlU XXpzsu8pSw== =8B/z -----END PGP SIGNATURE----- Merge tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block Pull block fixes from Jens Axboe: - Two NVMe device removal crash fixes, and a compat fixup for for an ioctl that was introduced in this release (Anton, Charles, Max - via Keith) - Missing error path mutex unlock for drbd (Dan) - cgroup writeback fixup on dead memcg (Tejun) - blkcg online stats print fix (Tejun) * tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block: cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead block: drbd: remove a stray unlock in __drbd_send_protocol() blkcg: make blkcg_print_stat() print stats only for online blkgs nvme: change nvme_passthru_cmd64 to explicitly mark rsvd nvme-multipath: fix crash in nvme_mpath_clear_ctrl_paths nvme-rdma: fix a segmentation fault during module unload |
||
|
David S. Miller
|
a2582cdc32 |
Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says: ==================== Intel Wired LAN Driver Fixes 2019-11-08 This series contains fixes to igb, igc, ixgbe, i40e, iavf and ice drivers. Colin Ian King fixes a potentially wrap-around counter in a for-loop. Nick fixes the default ITR values for the iavf driver to 50 usecs interval. Arkadiusz fixes 'ethtool -m' for X722 devices where the correct value cannot be obtained from the firmware, so add X722 to the check to ensure the wrong value is not returned. Jake fixes igb and igc drivers in their implementation of launch time support by declaring skb->tstamp value as ktime_t instead of s64. Magnus fixes ixgbe and i40e where the need_wakeup flag for transmit may not be set for AF_XDP sockets that are only used to send packets. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Magnus Karlsson
|
0843aa8f12 |
ixgbe: need_wakeup flag might not be set for Tx
The need_wakeup flag for Tx might not be set for AF_XDP sockets that are only used to send packets. This happens if there is at least one outstanding packet that has not been completed by the hardware and we get that corresponding completion (which will not generate an interrupt since interrupts are disabled in the napi poll loop) between the time we stopped processing the Tx completions and interrupts are enabled again. In this case, the need_wakeup flag will have been cleared at the end of the Tx completion processing as we believe we will get an interrupt from the outstanding completion at a later point in time. But if this completion interrupt occurs before interrupts are enable, we lose it and should at that point really have set the need_wakeup flag since there are no more outstanding completions that can generate an interrupt to continue the processing. When this happens, user space will see a Tx queue need_wakeup of 0 and skip issuing a syscall, which means will never get into the Tx processing again and we have a deadlock. This patch introduces a quick fix for this issue by just setting the need_wakeup flag for Tx to 1 all the time. I am working on a proper fix for this that will toggle the flag appropriately, but it is more challenging than I anticipated and I am afraid that this patch will not be completed before the merge window closes, therefore this easier fix for now. This fix has a negative performance impact in the range of 0% to 4%. Towards the higher end of the scale if you have driver and application on the same core and issue a lot of packets, and towards no negative impact if you use two cores, lower transmission speeds and/or a workload that also receives packets. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
||
|
Magnus Karlsson
|
705639572e |
i40e: need_wakeup flag might not be set for Tx
The need_wakeup flag for Tx might not be set for AF_XDP sockets that are only used to send packets. This happens if there is at least one outstanding packet that has not been completed by the hardware and we get that corresponding completion (which will not generate an interrupt since interrupts are disabled in the napi poll loop) between the time we stopped processing the Tx completions and interrupts are enabled again. In this case, the need_wakeup flag will have been cleared at the end of the Tx completion processing as we believe we will get an interrupt from the outstanding completion at a later point in time. But if this completion interrupt occurs before interrupts are enable, we lose it and should at that point really have set the need_wakeup flag since there are no more outstanding completions that can generate an interrupt to continue the processing. When this happens, user space will see a Tx queue need_wakeup of 0 and skip issuing a syscall, which means will never get into the Tx processing again and we have a deadlock. This patch introduces a quick fix for this issue by just setting the need_wakeup flag for Tx to 1 all the time. I am working on a proper fix for this that will toggle the flag appropriately, but it is more challenging than I anticipated and I am afraid that this patch will not be completed before the merge window closes, therefore this easier fix for now. This fix has a negative performance impact in the range of 0% to 4%. Towards the higher end of the scale if you have driver and application on the same core and issue a lot of packets, and towards no negative impact if you use two cores, lower transmission speeds and/or a workload that also receives packets. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
||
|
Jacob Keller
|
6acab13bdf |
igb/igc: use ktime accessors for skb->tstamp
When implementing launch time support in the igb and igc drivers, the skb->tstamp value is assumed to be a s64, but it's declared as a ktime_t value. Although ktime_t is typedef'd to s64 it wasn't always, and the kernel provides accessors for ktime_t values. Use the ktime_to_timespec64 and ktime_set accessors instead of directly assuming that the variable is always an s64. This improves portability if the code is ever moved to another kernel version, or if the definition of ktime_t ever changes again in the future. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
||
|
Arkadiusz Kubalewski
|
4c9da6f2b8 |
i40e: Fix for ethtool -m issue on X722 NIC
This patch contains fix for a problem with command: 'ethtool -m <dev>' which breaks functionality of: 'ethtool <dev>' when called on X722 NIC Disallowed update of link phy_types on X722 NIC Currently correct value cannot be obtained from FW Previously wrong value returned by FW was used and was a root cause for incorrect output of 'ethtool <dev>' command Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
||
|
Nicholas Nunley
|
4eda4e0096 |
iavf: initialize ITRN registers with correct values
Since commit
|
||
|
Colin Ian King
|
615457a226 |
ice: fix potential infinite loop because loop counter being too small
Currently the for-loop counter i is a u8 however it is being checked
against a maximum value hw->num_tx_sched_layers which is a u16. Hence
there is a potential wrap-around of counter i back to zero if
hw->num_tx_sched_layers is greater than 255. Fix this by making i
a u16.
Addresses-Coverity: ("Infinite loop")
Fixes:
|
||
|
Manish Chopra
|
deabc87111 |
qede: fix NULL pointer deref in __qede_remove()
While rebooting the system with SR-IOV vfs enabled leads to below crash due to recurrence of __qede_remove() on the VF devices (first from .shutdown() flow of the VF itself and another from PF's .shutdown() flow executing pci_disable_sriov()) This patch adds a safeguard in __qede_remove() flow to fix this, so that driver doesn't attempt to remove "already removed" devices. [ 194.360134] BUG: unable to handle kernel NULL pointer dereference at 00000000000008dc [ 194.360227] IP: [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede] [ 194.360304] PGD 0 [ 194.360325] Oops: 0000 [#1] SMP [ 194.360360] Modules linked in: tcp_lp fuse tun bridge stp llc devlink bonding ip_set nfnetlink ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib ib_umad rpcrdma sunrpc rdma_ucm ib_uverbs ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi dell_smbios iTCO_wdt iTCO_vendor_support dell_wmi_descriptor dcdbas vfat fat pcc_cpufreq skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd qedr ib_core pcspkr ses enclosure joydev ipmi_ssif sg i2c_i801 lpc_ich mei_me mei wmi ipmi_si ipmi_devintf ipmi_msghandler tpm_crb acpi_pad acpi_power_meter xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel mgag200 [ 194.361044] qede i2c_algo_bit drm_kms_helper qed syscopyarea sysfillrect nvme sysimgblt fb_sys_fops ttm nvme_core mpt3sas crc8 ptp drm pps_core ahci raid_class scsi_transport_sas libahci libata drm_panel_orientation_quirks nfit libnvdimm dm_mirror dm_region_hash dm_log dm_mod [last unloaded: ip_tables] [ 194.361297] CPU: 51 PID: 7996 Comm: reboot Kdump: loaded Not tainted 3.10.0-1062.el7.x86_64 #1 [ 194.361359] Hardware name: Dell Inc. PowerEdge MX840c/0740HW, BIOS 2.4.6 10/15/2019 [ 194.361412] task: ffff9cea9b360000 ti: ffff9ceabebdc000 task.ti: ffff9ceabebdc000 [ 194.361463] RIP: 0010:[<ffffffffc03553c4>] [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede] [ 194.361534] RSP: 0018:ffff9ceabebdfac0 EFLAGS: 00010282 [ 194.361570] RAX: 0000000000000000 RBX: ffff9cd013846098 RCX: 0000000000000000 [ 194.361621] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9cd013846098 [ 194.361668] RBP: ffff9ceabebdfae8 R08: 0000000000000000 R09: 0000000000000000 [ 194.361715] R10: 00000000bfe14201 R11: ffff9ceabfe141e0 R12: 0000000000000000 [ 194.361762] R13: ffff9cd013846098 R14: 0000000000000000 R15: ffff9ceab5e48000 [ 194.361810] FS: 00007f799c02d880(0000) GS:ffff9ceacb0c0000(0000) knlGS:0000000000000000 [ 194.361865] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 194.361903] CR2: 00000000000008dc CR3: 0000001bdac76000 CR4: 00000000007607e0 [ 194.361953] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 194.362002] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 194.362051] PKRU: 55555554 [ 194.362073] Call Trace: [ 194.362109] [<ffffffffc0355500>] qede_remove+0x10/0x20 [qede] [ 194.362180] [<ffffffffb97d0f3e>] pci_device_remove+0x3e/0xc0 [ 194.362240] [<ffffffffb98b3c52>] __device_release_driver+0x82/0xf0 [ 194.362285] [<ffffffffb98b3ce3>] device_release_driver+0x23/0x30 [ 194.362343] [<ffffffffb97c86d4>] pci_stop_bus_device+0x84/0xa0 [ 194.362388] [<ffffffffb97c87e2>] pci_stop_and_remove_bus_device+0x12/0x20 [ 194.362450] [<ffffffffb97f153f>] pci_iov_remove_virtfn+0xaf/0x160 [ 194.362496] [<ffffffffb97f1aec>] sriov_disable+0x3c/0xf0 [ 194.362534] [<ffffffffb97f1bc3>] pci_disable_sriov+0x23/0x30 [ 194.362599] [<ffffffffc02f83c3>] qed_sriov_disable+0x5e3/0x650 [qed] [ 194.362658] [<ffffffffb9622df6>] ? kfree+0x106/0x140 [ 194.362709] [<ffffffffc02cc0c0>] ? qed_free_stream_mem+0x70/0x90 [qed] [ 194.362754] [<ffffffffb9622df6>] ? kfree+0x106/0x140 [ 194.362803] [<ffffffffc02cd659>] qed_slowpath_stop+0x1a9/0x1d0 [qed] [ 194.362854] [<ffffffffc035544e>] __qede_remove+0xae/0x130 [qede] [ 194.362904] [<ffffffffc03554e0>] qede_shutdown+0x10/0x20 [qede] [ 194.362956] [<ffffffffb97cf90a>] pci_device_shutdown+0x3a/0x60 [ 194.363010] [<ffffffffb98b180b>] device_shutdown+0xfb/0x1f0 [ 194.363066] [<ffffffffb94b66c6>] kernel_restart_prepare+0x36/0x40 [ 194.363107] [<ffffffffb94b66e2>] kernel_restart+0x12/0x60 [ 194.363146] [<ffffffffb94b6959>] SYSC_reboot+0x229/0x260 [ 194.363196] [<ffffffffb95f200d>] ? handle_mm_fault+0x39d/0x9b0 [ 194.363253] [<ffffffffb942b621>] ? __switch_to+0x151/0x580 [ 194.363304] [<ffffffffb9b7ec28>] ? __schedule+0x448/0x9c0 [ 194.363343] [<ffffffffb94b69fe>] SyS_reboot+0xe/0x10 [ 194.363387] [<ffffffffb9b8bede>] system_call_fastpath+0x25/0x2a [ 194.363430] Code: f9 e9 37 ff ff ff 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 4c 8d af 98 00 00 00 41 54 4c 89 ef 41 89 f4 53 e8 4c e4 55 f9 <80> b8 dc 08 00 00 01 48 89 c3 4c 8d b8 c0 08 00 00 4c 8b b0 c0 [ 194.363712] RIP [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede] [ 194.363764] RSP <ffff9ceabebdfac0> [ 194.363791] CR2: 00000000000008dc Signed-off-by: Manish Chopra <manishc@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: Sudarsana Kalluru <skalluru@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Eric Dumazet
|
1b53d64435 |
net: fix data-race in neigh_event_send()
KCSAN reported the following data-race [1] The fix will also prevent the compiler from optimizing out the condition. [1] BUG: KCSAN: data-race in neigh_resolve_output / neigh_resolve_output write to 0xffff8880a41dba78 of 8 bytes by interrupt on cpu 1: neigh_event_send include/net/neighbour.h:443 [inline] neigh_resolve_output+0x78/0x480 net/core/neighbour.c:1474 neigh_output include/net/neighbour.h:511 [inline] ip_finish_output2+0x4af/0xe40 net/ipv4/ip_output.c:228 __ip_finish_output net/ipv4/ip_output.c:308 [inline] __ip_finish_output+0x23a/0x490 net/ipv4/ip_output.c:290 ip_finish_output+0x41/0x160 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_output+0xdf/0x210 net/ipv4/ip_output.c:432 dst_output include/net/dst.h:436 [inline] ip_local_out+0x74/0x90 net/ipv4/ip_output.c:125 __ip_queue_xmit+0x3a8/0xa40 net/ipv4/ip_output.c:532 ip_queue_xmit+0x45/0x60 include/net/ip.h:237 __tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169 tcp_transmit_skb net/ipv4/tcp_output.c:1185 [inline] __tcp_retransmit_skb+0x4bd/0x15f0 net/ipv4/tcp_output.c:2976 tcp_retransmit_skb+0x36/0x1a0 net/ipv4/tcp_output.c:2999 tcp_retransmit_timer+0x719/0x16d0 net/ipv4/tcp_timer.c:515 tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:598 tcp_write_timer+0xd1/0xf0 net/ipv4/tcp_timer.c:618 read to 0xffff8880a41dba78 of 8 bytes by interrupt on cpu 0: neigh_event_send include/net/neighbour.h:442 [inline] neigh_resolve_output+0x57/0x480 net/core/neighbour.c:1474 neigh_output include/net/neighbour.h:511 [inline] ip_finish_output2+0x4af/0xe40 net/ipv4/ip_output.c:228 __ip_finish_output net/ipv4/ip_output.c:308 [inline] __ip_finish_output+0x23a/0x490 net/ipv4/ip_output.c:290 ip_finish_output+0x41/0x160 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_output+0xdf/0x210 net/ipv4/ip_output.c:432 dst_output include/net/dst.h:436 [inline] ip_local_out+0x74/0x90 net/ipv4/ip_output.c:125 __ip_queue_xmit+0x3a8/0xa40 net/ipv4/ip_output.c:532 ip_queue_xmit+0x45/0x60 include/net/ip.h:237 __tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169 tcp_transmit_skb net/ipv4/tcp_output.c:1185 [inline] __tcp_retransmit_skb+0x4bd/0x15f0 net/ipv4/tcp_output.c:2976 tcp_retransmit_skb+0x36/0x1a0 net/ipv4/tcp_output.c:2999 tcp_retransmit_timer+0x719/0x16d0 net/ipv4/tcp_timer.c:515 tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:598 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Linus Torvalds
|
abf6c39796 |
pwm: Fixes for v5.4-rc7
Here's one more fix to keep a reference to the driver's module as long as there are users of the PWM exposed by the driver. -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl3FqF0ZHHRoaWVycnku cmVkaW5nQGdtYWlsLmNvbQAKCRDdI6zXfz6zodd/D/0cowYLDl8soXBX3+mBbynT R5xWnC192wRZa/OcNwjqcMKFx5qlPZRR14CU02L7fif8Uls4hppRTfU7WSqAd285 XqsXTGbpCxH5IWDmT4lstj/6UjkMwuWM6FaCYrmGphkGDAu75PA7mQcJbPxDSOmW 9iT5HbsHQF1NcCNBlaiqtOFh8z6ymn8fN3jVe0DL8efvJr8TOWRVVRZfHMYcCzfg dUmBQ+oTLwwqmv4a4FQ5u+So7oIln0BBAKrfoybxHvrm4ZMAyuXC55IKbnXJSXAn YnoRVhXvm7xPTZ/LHp8AP+hKykMBbNQDE5y5QkLLJWYYfU1p98QdlqNhD46/TQmz j4OE1Eq+pW2ULNhDvL5zRdDe15jPQtwbKPTaL131r5xCSWNhkhN/HsXZwI9npXuJ GSkH0lWRns54x/CUgQ9tp1kdPG4PL83Fuzxcfb/L1uTD8Z1h9s98FWSHD64ASLcA wPGLPboALvxy/ftPjzewQ5wiJ8I95FBl3dAKDVN7R/yxD5Aa/WlxjTWq29V2twGy oUc7CCU0fhtM8+QRaPd0+ER6Q54Rbxah/HNi/Q0xAQJ/SoXdm/SZHPl/h/6butvH R2RKgYY0l/xd+Th2ZeWDFq0zwZpdvIHS4Jeh6b30pPBUcsqEsUobASv57jyoYSXb BwPtePa4gLtEMuMeJptOiA== =WelB -----END PGP SIGNATURE----- Merge tag 'pwm/for-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm fix from Thierry Reding: "One more fix to keep a reference to the driver's module as long as there are users of the PWM exposed by the driver" * tag 'pwm/for-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: bcm-iproc: Prevent unloading the driver module while in use |
||
|
Peter Zijlstra
|
6e2df0581f |
sched: Fix pick_next_task() vs 'change' pattern race
Commit |
||
|
Qais Yousef
|
e3b8b6a0d1 |
sched/core: Fix compilation error when cgroup not selected
When cgroup is disabled the following compilation error was hit
kernel/sched/core.c: In function ‘uclamp_update_active_tasks’:
kernel/sched/core.c:1081:23: error: storage size of ‘it’ isn’t known
struct css_task_iter it;
^~
kernel/sched/core.c:1084:2: error: implicit declaration of function ‘css_task_iter_start’; did you mean ‘__sg_page_iter_start’? [-Werror=implicit-function-declaration]
css_task_iter_start(css, 0, &it);
^~~~~~~~~~~~~~~~~~~
__sg_page_iter_start
kernel/sched/core.c:1085:14: error: implicit declaration of function ‘css_task_iter_next’; did you mean ‘__sg_page_iter_next’? [-Werror=implicit-function-declaration]
while ((p = css_task_iter_next(&it))) {
^~~~~~~~~~~~~~~~~~
__sg_page_iter_next
kernel/sched/core.c:1091:2: error: implicit declaration of function ‘css_task_iter_end’; did you mean ‘get_task_cred’? [-Werror=implicit-function-declaration]
css_task_iter_end(&it);
^~~~~~~~~~~~~~~~~
get_task_cred
kernel/sched/core.c:1081:23: warning: unused variable ‘it’ [-Wunused-variable]
struct css_task_iter it;
^~
cc1: some warnings being treated as errors
make[2]: *** [kernel/sched/core.o] Error 1
Fix by protetion uclamp_update_active_tasks() with
CONFIG_UCLAMP_TASK_GROUP
Fixes:
|
||
|
Tejun Heo
|
65de03e251 |
cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
cgroup writeback tries to refresh the associated wb immediately if the current wb is dead. This is to avoid keeping issuing IOs on the stale wb after memcg - blkcg association has changed (ie. when blkcg got disabled / enabled higher up in the hierarchy). Unfortunately, the logic gets triggered spuriously on inodes which are associated with dead cgroups. When the logic is triggered on dead cgroups, the attempt fails only after doing quite a bit of work allocating and initializing a new wb. While |