Peter Zijlstra c026b3591e x86, mm, perf: Allow recursive faults from interrupts ... Waiman managed to trigger a PMI while in a emulate_vsyscall() fault, the PMI in turn managed to trigger a fault while obtaining a stack trace. This triggered the sig_on_uaccess_error recursive fault logic and killed the process dead. Fix this by explicitly excluding interrupts from the recursive fault logic. Reported-and-Tested-by: Waiman Long <waiman.long@hp.com> Fixes: e00b12e64b ("perf/x86: Further optimize copy_from_user_nmi()") Cc: Aswin Chandramouleeswaran <aswin@hp.com> Cc: Scott J Norton <scott.norton@hp.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140110200603.GJ7572@laptop.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>		2014-01-16 09:19:48 +01:00
..
kmemcheck
amdtopology.c
dump_pagetables.c
extable.c
fault.c	x86, mm, perf: Allow recursive faults from interrupts	2014-01-16 09:19:48 +01:00
gup.c	mm: numa: serialise parallel get_user_page against THP migration	2013-12-18 19:04:50 -08:00
highmem_32.c
hugetlbpage.c	mm: migrate: check movability of hugepage in unmap_and_move_huge_page()	2013-09-11 15:57:49 -07:00
init_32.c
init_64.c
init.c	arch/x86/mm/init.c: fix incorrect function name in alloc_low_pages()	2013-11-13 12:09:11 +09:00
iomap_32.c
ioremap.c
kmmio.c
Makefile	x86, trace: Add page fault tracepoints	2013-11-08 14:15:49 -08:00
memtest.c
mm_internal.h
mmap.c
mmio-mod.c
numa_32.c
numa_64.c
numa_emulation.c
numa_internal.h
numa.c	mem-hotplug: introduce movable_node boot option	2013-11-13 12:09:09 +09:00
pageattr-test.c
pageattr.c
pat_internal.h
pat_rbtree.c
pat.c
pf_in.c
pf_in.h
pgtable_32.c
pgtable.c	x86, mm: do not leak page->ptl for pmd page tables	2013-11-21 16:42:28 -08:00
physaddr.c
physaddr.h
setup_nx.c
srat.c
testmmiotrace.c
tlb.c