kernel_optimize_test/arch
Maneesh Soni 6796313263 [PATCH] Plug kdump shutdown race window
lapic_shutdown() re-enables interrupts which is un-desirable for panic
case, so use local_irq_save() and local_irq_restore() to keep the irqs
disabled for kexec on panic case, and close a possible race window while
kdump shutdown as shown in this stack trace

   -- BUG: spinlock lockup on CPU#1, bash/4396, c52781a0
   [<c01c1870>] _raw_spin_lock+0xb7/0xd2
   [<c029e148>] _spin_lock+0x6/0x8
   [<c011b33f>] scheduler_tick+0xe7/0x328
   [<c0128a7c>] update_process_times+0x51/0x5d
   [<c0114592>] smp_apic_timer_interrupt+0x4f/0x58
   [<c01141ff>] lapic_shutdown+0x76/0x7e
   [<c0104d7c>] apic_timer_interrupt+0x1c/0x30
   [<c01141ff>] lapic_shutdown+0x76/0x7e
   [<c0116659>] machine_crash_shutdown+0x83/0xaa
   [<c013cc36>] crash_kexec+0xc1/0xe3
   [<c029e148>] _spin_lock+0x6/0x8
   [<c013cc22>] crash_kexec+0xad/0xe3
   [<c0215280>] __handle_sysrq+0x84/0xfd
   [<c018d937>] write_sysrq_trigger+0x2c/0x35
   [<c015e47b>] vfs_write+0xa2/0x13b
   [<c015ea73>] sys_write+0x3b/0x64
   [<c0103c69>] syscall_call+0x7/0xb

Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-14 08:26:44 -08:00
..
alpha [PATCH] alpha: fix IRQ handling lockup 2006-03-09 19:47:37 -08:00
arm [ARM] iwmmxt thread state alignment 2006-03-12 22:36:06 +00:00
arm26 [PATCH] arm26: select BLK_DEV_FD only on A5K 2006-02-01 08:53:22 -08:00
cris [PATCH] fallout from ptrace consolidation patch: cris/arch-v10 2006-02-07 20:57:19 -05:00
frv [PATCH] FRV: Use virtual interrupt disablement 2006-02-14 16:09:35 -08:00
h8300 [PATCH] add missing pm_power_off's 2006-03-06 18:40:44 -08:00
i386 [PATCH] Plug kdump shutdown race window 2006-03-14 08:26:44 -08:00
ia64 [IA64] Fix race in the accessed/dirty bit handlers 2006-03-08 16:07:55 -08:00
m32r [PATCH] m32r: fix and update for gcc-4.0 2006-02-24 14:31:36 -08:00
m68k [PATCH] m68k: pm_power_off() breakage 2006-02-18 16:30:20 -05:00
m68knommu [PATCH] hrtimer: round up relative start time on low-res arches 2006-02-14 16:09:35 -08:00
mips [MIPS] Always pass -msoft-float. 2006-03-09 18:05:10 +00:00
parisc [PATCH] hrtimer: round up relative start time on low-res arches 2006-02-14 16:09:35 -08:00
powerpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge 2006-03-08 18:11:00 -08:00
ppc powerpc: Fix various syscall/signal/swapcontext bugs 2006-03-08 13:24:22 +11:00
s390 [PATCH] s390: Increase spinlock retry code performance 2006-03-09 19:47:38 -08:00
sh [PATCH] arch/sh/Kconfig: don't source non-existing Kconfig files 2006-03-09 19:47:37 -08:00
sh64 [PATCH] drive_info removal outside of arch/i386 2006-02-07 20:56:47 -05:00
sparc [SPARC]: sys_newfstatat --> sys_fstatat64 2006-02-12 23:30:11 -08:00
sparc64 [SPARC64]: Mark __ex_table section correctly. 2006-03-04 23:23:56 -08:00
um [PATCH] uml: tidying COW code 2006-02-24 14:31:37 -08:00
v850 [PATCH] add missing pm_power_off's 2006-03-06 18:40:44 -08:00
x86_64 Revert "[PATCH] x86-64: Fix up handling of non canonical user RIPs" 2006-03-14 08:01:47 -08:00
xtensa [PATCH] xtensa must set RWSEM_GENERIC_SPINLOCK=y 2006-03-09 19:47:37 -08:00