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authorRalf Baechle <ralf@linux-mips.org>2015-07-23 11:10:38 +0200
committerRalf Baechle <ralf@linux-mips.org>2015-08-03 09:25:08 +0200
commite070dab73523bcbf2409ba8b5c342d53bccc0959 (patch)
tree92154b37f1e4719e7ec030b8719121dea4412b81 /arch/mips/mm/fault.c
parent106eccb4d20f35ebc58ff2286c170d9e79c5ff68 (diff)
downloadop-kernel-dev-e070dab73523bcbf2409ba8b5c342d53bccc0959.zip
op-kernel-dev-e070dab73523bcbf2409ba8b5c342d53bccc0959.tar.gz
MIPS: Handle page faults of executable but unreadable pages correctly.
Without this we end taking execeptions in an endless loop hanging the thread. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mm/fault.c')
-rw-r--r--arch/mips/mm/fault.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 36c0f26..852a41c 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -133,7 +133,8 @@ good_area:
#endif
goto bad_area;
}
- if (!(vma->vm_flags & VM_READ)) {
+ if (!(vma->vm_flags & VM_READ) &&
+ exception_epc(regs) != address) {
#if 0
pr_notice("Cpu%d[%s:%d:%0*lx:%ld:%0*lx] RI violation\n",
raw_smp_processor_id(),
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