AcoSail/kernel_optimize_test
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kernel_optimize_test/net/dccp
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Arnaldo Carvalho de Melo a693722aec dccp_diag: LISTEN sockets don't have CCIDs 
And thus when we try to use 'ss -danemi' on these sockets that have no
ccid blocks (data collected using systemtap after I fixed the problem):

dccp_diag_get_info sk=0xffff8801220a3100, dp->dccps_hc_rx_ccid=0x0000000000000000, dp->dccps_hc_tx_ccid=0x0000000000000000

We get an OOPS:

mica.ghostprotocols.net login: BUG: unable to handle kernel NULL pointer
dereferenc0
IP: [<ffffffffa0136082>] dccp_diag_get_info+0x82/0xc0 [dccp_diag]
PGD 12106f067 PUD 122488067 PMD 0
Oops: 0000 [#1] PREEMPT

Fix is trivial, and 'ss -d' is working again:

[root@mica ~]# ss -danemi
State   Recv-Q Send-Q   Local Address:Port   Peer Address:Port 
LISTEN  0      0                    *:5001              *:*
ino:7288 sk:220a3100ffff8801
	 mem:(r0,w0,f0,t0) cwnd:0 ssthresh:0
[root@mica ~]# 

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-17 16:08:01 -08:00
..
ccids dccp: Registration routines for changing feature values 2008-11-12 00:43:40 -08:00
ackvec.c dccp: Set per-connection CCIDs via socket options 2008-11-23 16:02:31 -08:00
ackvec.h dccp: Set per-connection CCIDs via socket options 2008-11-23 16:02:31 -08:00
ccid.c dccp: Remove obsolete parts of the old CCID interface 2008-12-08 01:18:05 -08:00
ccid.h dccp: Remove obsolete parts of the old CCID interface 2008-12-08 01:18:05 -08:00
dccp.h dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-12-08 01:19:06 -08:00
diag.c dccp_diag: LISTEN sockets don't have CCIDs 2008-12-17 16:08:01 -08:00
feat.c dccp: Remove manual influence on NDP Count feature 2008-12-08 01:18:37 -08:00
feat.h dccp: Clean up old feature-negotiation infrastructure 2008-12-08 01:17:32 -08:00
input.c dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-12-08 01:19:06 -08:00
ipv4.c net: Convert TCP & DCCP hash tables to use RCU / hlist_nulls 2008-11-16 19:40:17 -08:00
ipv6.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
ipv6.h
Kconfig This reverts "Merge branch 'dccp' of git://eden-feed.erg.abdn.ac.uk/dccp_exp" 2008-09-09 13:27:22 +02:00
Makefile This reverts "Merge branch 'dccp' of git://eden-feed.erg.abdn.ac.uk/dccp_exp" 2008-09-09 13:27:22 +02:00
minisocks.c dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-12-08 01:19:06 -08:00
options.c dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-12-08 01:19:06 -08:00
output.c dccp: use roundup instead of opencoding 2008-12-05 22:39:49 -08:00
probe.c dccp: API to query the current TX/RX CCID 2008-11-23 16:04:59 -08:00
proto.c dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-12-08 01:19:06 -08:00
sysctl.c dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-12-08 01:19:06 -08:00
timer.c dccp: Limit feature negotiation to connection setup phase 2008-11-12 00:42:58 -08:00