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author | Tony Luck <tony.luck@intel.com> | 2012-07-11 10:20:47 -0700 |
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committer | Tony Luck <tony.luck@intel.com> | 2012-07-11 10:20:47 -0700 |
commit | 6751ed65dc6642af64f7b8a440a75563c8aab7ae (patch) | |
tree | 8736d4c2b3aa00c6a4f39d2e6cba4805720c2874 /Documentation/pti | |
parent | 6887a4131da3adaab011613776d865f4bcfb5678 (diff) |
x86/mce: Fix siginfo_t->si_addr value for non-recoverable memory faults
In commit dad1743e5993f1 ("x86/mce: Only restart instruction after machine
check recovery if it is safe") we fixed mce_notify_process() to force a
signal to the current process if it was not restartable (RIPV bit not
set in MCG_STATUS). But doing it here means that the process doesn't
get told the virtual address of the fault via siginfo_t->si_addr. This
would prevent application level recovery from the fault.
Make a new MF_MUST_KILL flag bit for memory_failure() et al. to use so
that we will provide the right information with the signal.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: stable@kernel.org # 3.4+
Diffstat (limited to 'Documentation/pti')
0 files changed, 0 insertions, 0 deletions