| commit | 1c4f53ca32463a742583976f40444ce4485f3cf9 | |
| author | Tony Luck <tony.luck@intel.com> | |
| Wed, 23 May 2012 21:14:22 +0000 (23 14:14 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Fri, 1 Jun 2012 07:13:00 +0000 (1 15:13 +0800) | ||
| tree | 68dcbed29e197bf61c0265d1091778bddd32f7ec | treesnapshot (tar.gz zip) |
| parent | c179c9851c1b009faf3ec15b2af5042431a5a2ca | commitdiff |
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>
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>
| arch/x86/kernel/cpu/mcheck/mce-severity.c | diffblobblamehistory |