diff options
| author | Andy Lutomirski <[email protected]> | 2016-08-30 17:27:57 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-09-08 08:47:20 +0200 |
| commit | 6271cfdfc0e4731b76921ef02fdd87409d71dfdf (patch) | |
| tree | b1af2c82308a83478a5407406b17bad499c3a222 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 2b3061c77ce7e429b25a25560ba088e8e7193a67 (diff) | |
x86/mm: Improve stack-overflow #PF handling
If we get a page fault indicating kernel stack overflow, invoke
handle_stack_overflow(). To prevent us from overflowing the stack
again while handling the overflow (because we are likely to have
very little stack space left), call handle_stack_overflow() on the
double-fault stack.
Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/6d6cf96b3fb9b4c9aa303817e1dc4de0c7c36487.1472603235.git.luto@kernel.org
[ Minor edit. ]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions