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
..
boot	[PATCH] x86: gitignore some autogenerated files for i386	2006-02-14 16:09:35 -08:00
crypto
kernel	[PATCH] Plug kdump shutdown race window	2006-03-14 08:26:44 -08:00
lib
mach-default	[PATCH] Fix topology.c location	2006-02-24 14:31:39 -08:00
mach-es7000
mach-generic
mach-visws
mach-voyager	[PATCH] fix voyager after topology.c move	2006-02-26 19:10:30 -08:00
math-emu
mm
oprofile	[PATCH] x86: fix oprofile kernel callgraph regression	2006-02-14 08:25:29 -08:00
pci
power
defconfig
Kconfig	Make Kprobes depend on modules	2006-02-26 20:24:40 -08:00
Kconfig.cpu
Kconfig.debug
Makefile
Makefile.cpu