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MIPS: Handle page faults of executable but unreadable pages correctly.

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Without this we end taking execeptions in an endless loop hanging the
thread.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2015-07-23 11:10:38 +02:00
parent 106eccb4d2
commit e070dab735
1 changed files with 2 additions and 1 deletions
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3
arch/mips/mm/fault.c
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@@ -133,7 +133,8 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
#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(),