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| author | Ingo Molnar <mingo@elte.hu> | 2010-10-15 05:12:45 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-10-15 05:12:45 +0200 |
| commit | d9d572a9c0195486e3baf0d8d6a710196a707335 (patch) | |
| tree | af6ccb502b280adf5a4cd4c7be9243593432da26 /arch/x86 | |
| parent | 3cba11d32bb4b24c3ba257043595772df4b9c7b5 (diff) | |
| parent | ebc8827f75954fe315492883eee5cb3f355d547d (diff) | |
| download | linux-d9d572a9c0195486e3baf0d8d6a710196a707335.tar.bz2 | |
Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/mm/fault.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/kmemcheck/kmemcheck.c | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 4c4508e8a204..a24c6cfdccc4 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -251,6 +251,8 @@ static noinline __kprobes int vmalloc_fault(unsigned long address) if (!(address >= VMALLOC_START && address < VMALLOC_END)) return -1; + WARN_ON_ONCE(in_nmi()); + /* * Synchronize this task's top level page-table * with the 'reference' page table. @@ -369,6 +371,8 @@ static noinline __kprobes int vmalloc_fault(unsigned long address) if (!(address >= VMALLOC_START && address < VMALLOC_END)) return -1; + WARN_ON_ONCE(in_nmi()); + /* * Copy kernel mappings over when needed. This can also * happen within a race in page table update. In the later diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c index b3b531a4f8e5..d87dd6d042d6 100644 --- a/arch/x86/mm/kmemcheck/kmemcheck.c +++ b/arch/x86/mm/kmemcheck/kmemcheck.c @@ -631,6 +631,8 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address, if (!pte) return false; + WARN_ON_ONCE(in_nmi()); + if (error_code & 2) kmemcheck_access(regs, address, KMEMCHECK_WRITE); else |