linux/arch
David Wilder eac8392f95 [POWERPC] Make secondary CPUs call into kdump on reset exception
In the case of a system hang, the user will invoke soft-reset to
initiate the kdump boot.  If xmon is enabled, the CPU(s) enter into the
xmon debugger.   Unfortunately, the secondary CPU(s) will return to the
hung state when they exit from the debugger (returned from die() ->
system_reset_exception()).  This causes a problem in kdump since the
hung CPU(s) will not respond to the IPI sent from kdump.  This patch
fixes the issue by calling crash_kexec_secondary() directly from
system_reset_exception() without returning to the previous state.  These
secondary CPUs wait 5ms until the kdump boot is started by the primary
CPU.   In the case we exited from the debugger to "recover" (command 'x'
in xmon) the primary and the secondary CPUs will all return from die()
-> system_reset_exception() ->crash_kexec_secondary() wait 5ms, then
return to the previous state.  A kdump boot is not started in this case.

Signed-off-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: David Wilder <dwilder@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-08-17 16:41:10 +10:00
..
alpha [PATCH] arch/alpha: Use ARRAY_SIZE macro 2006-07-31 13:28:38 -07:00
arm [ARM] 3739/1: genirq updates: irq_chip, add and use irq_chip.name 2006-08-01 22:26:25 +01:00
arm26 [PATCH] tty: Remove include of screen_info.h from tty.h 2006-07-10 13:24:16 -07:00
cris [PATCH] pcf8563: remove MOD_INC_USE_COUNT, MOD_DEC_USE_COUNT 2006-07-10 13:24:22 -07:00
frv [PATCH] FRV: Introduce asm-offsets for FRV arch 2006-07-10 13:24:22 -07:00
h8300 [PATCH] irq-flags: H8300: Use the new IRQF_ constants 2006-07-02 13:58:47 -07:00
i386 [CPUFREQ] Propagate acpi_processor_preregister_performance return value. 2006-07-31 18:37:06 -04:00
ia64 [IA64] make uncached allocator more node aware 2006-08-04 10:27:27 -07:00
m32r [PATCH] tty: Remove include of screen_info.h from tty.h 2006-07-10 13:24:16 -07:00
m68k [PATCH] irq-flags: M68K: Use the new IRQF_ constants 2006-07-02 13:58:47 -07:00
m68knommu [PATCH] irq-flags: M68KNOMMU: Use the new IRQF_ constants 2006-07-02 13:58:47 -07:00
mips [MIPS] sparsemem: fix crash in show_mem 2006-07-13 21:26:22 +01:00
parisc [PATCH] vDSO hash-style fix 2006-07-31 13:28:43 -07:00
powerpc [POWERPC] Make secondary CPUs call into kdump on reset exception 2006-08-17 16:41:10 +10:00
ppc [PATCH] vDSO hash-style fix 2006-07-31 13:28:43 -07:00
s390 [PATCH] cpu hotplug: use hotplug version of registration in late inits 2006-07-31 13:28:39 -07:00
sh [PATCH] sh: fix proc file removal for superh store queue module 2006-08-06 08:57:48 -07:00
sh64 [PATCH] tty: Remove include of screen_info.h from tty.h 2006-07-10 13:24:16 -07:00
sparc [SPARC]: Defer clock_probe to fs_initcall() 2006-07-27 22:08:01 -07:00
sparc64 [SPARC64]: Explicitly print return PC when the kernel fault PC is bogus. 2006-07-24 22:33:58 -07:00
um [PATCH] vDSO hash-style fix 2006-07-31 13:28:43 -07:00
v850 [PATCH] v850: call init_page_count() instead of set_page_count() 2006-07-31 13:28:38 -07:00
x86_64 [PATCH] Fix more per-cpu typos 2006-08-06 08:57:47 -07:00
xtensa [PATCH] panic_on_oops: remove ssleep() 2006-07-31 13:28:39 -07:00