| commit | 82584ef75b7c14f22028595b0e8aa904464c5240 | |
| author | Shaohua Li <shaohua.li@intel.com> | |
| Mon, 12 Dec 2005 08:37:02 +0000 (12 00:37 -0800) | ||
| committer | Linus Torvalds <torvalds@g5.osdl.org> | |
| Mon, 12 Dec 2005 16:57:42 +0000 (12 08:57 -0800) | ||
| tree | 3f144ec21f06b0d2f57a67f0b543a42ae3dac5a4 | treesnapshot (tar.gz zip) |
| parent | b3e55c727ff7349c5db722fbdb8d99a151e8e0bf | commitdiff |
[PATCH] x86: fix NMI with CPU hotplug
With CPU hotplug enabled, NMI watchdog stoped working. It appears the
violation is the cpu_online check in nmi handler. local ACPI based NMI
watchdog is initialized before we set CPU online for APs. It's quite
possible a NMI is fired before we set CPU online, and that's what happens
here.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
With CPU hotplug enabled, NMI watchdog stoped working. It appears the
violation is the cpu_online check in nmi handler. local ACPI based NMI
watchdog is initialized before we set CPU online for APs. It's quite
possible a NMI is fired before we set CPU online, and that's what happens
here.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| arch/i386/kernel/traps.c | diffblobblamehistory |