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| author |   GOTO Masanori <gotom@sanori.org> | 2006-03-07 21:55:29 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-08 14:14:01 -0800 |
| commit | b884e25784f62a1c740d2e4c1ce19cb89644e986 (patch) | |
| tree | 064045e9859cdf0c547d6be890d8a013e07104f9 /include/linux/rcupdate.h | |
| parent | [PATCH] __get_unaligned() gcc-4 fix (diff) | |
| download | linux-dev-b884e25784f62a1c740d2e4c1ce19cb89644e986.tar.xz linux-dev-b884e25784f62a1c740d2e4c1ce19cb89644e986.zip | |
[PATCH] x86: Fix i386 nmi_watchdog that does not trigger die_nmi
Fix i386 nmi_watchdog that does not meet watchdog timeout condition. It
does not hit die_nmi when it should be triggered, because the current
nmi_watchdog_tick in arch/i386/kernel/nmi.c never count up alert_counter
like this:
void nmi_watchdog_tick (struct pt_regs * regs) {
if (last_irq_sums[cpu] == sum) {
alert_counter[cpu]++; <- count up alert_counter, but
if (alert_counter[cpu] == 5*nmi_hz)
die_nmi(regs, "NMI Watchdog detected LOCKUP");
alert_counter[cpu] = 0; <- reset alert_counter
This patch changes it back to the previous and working version.
This was found and originally written by Kohta NAKASHIMA.
(akpm: also uninline write_watchdog_counter(), saving 184 byets)
Signed-off-by: GOTO Masanori <gotom@sanori.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/rcupdate.h')
0 files changed, 0 insertions, 0 deletions