diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2013-10-24 05:30:12 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-11-07 13:12:37 +0400 |
| commit | 522e66464467543c0d88d023336eec4df03ad40b (patch) | |
| tree | c71b6dafc9aefc97d4a65f2a6c1f2ef0799e5197 /arch/s390/kernel/signal.c | |
| parent | 5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52 (diff) | |
| download | linux-522e66464467543c0d88d023336eec4df03ad40b.tar.xz | |
x86/apic: Disable I/O APIC before shutdown of the local APIC
In reboot and crash path, when we shut down the local APIC, the I/O APIC is
still active. This may cause issues because external interrupts
can still come in and disturb the local APIC during shutdown process.
To quiet external interrupts, disable I/O APIC before shutdown local APIC.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1382578212-4677-1-git-send-email-fenghua.yu@intel.com
Cc: <stable@kernel.org>
[ I suppose the 'issue' is a hang during shutdown. It's a fine change nevertheless. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/s390/kernel/signal.c')
0 files changed, 0 insertions, 0 deletions