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| author | Tony Luck <tony.luck@intel.com> | 2012-05-23 14:14:22 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-01 15:13:00 +0800 |
| commit | 1c4f53ca32463a742583976f40444ce4485f3cf9 (patch) | |
| tree | 68dcbed29e197bf61c0265d1091778bddd32f7ec /arch/x86/kernel/ftrace.c | |
| parent | c179c9851c1b009faf3ec15b2af5042431a5a2ca (diff) | |
| download | kernel_samsung_aries-1c4f53ca32463a742583976f40444ce4485f3cf9.zip kernel_samsung_aries-1c4f53ca32463a742583976f40444ce4485f3cf9.tar.gz kernel_samsung_aries-1c4f53ca32463a742583976f40444ce4485f3cf9.tar.bz2 | |
x86/mce: Fix check for processor context when machine check was taken.
commit 875e26648cf9b6db9d8dc07b7959d7c61fb3f49c upstream.
Linus pointed out that there was no value is checking whether m->ip
was zero - because zero is a legimate value. If we have a reliable
(or faked in the VM86 case) "m->cs" we can use it to tell whether we
were in user mode or kernelwhen the machine check hit.
Reported-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/ftrace.c')
0 files changed, 0 insertions, 0 deletions