| Message ID | 1380183836-17039-1-git-send-email-haokexin@gmail.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Commit | e48673360b8b113ca83dc3a45e02ad37fdf9f2d0 |
| Delegated to: | Benjamin Herrenschmidt |
| Headers | show |
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 2d06704..68d74b4 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -607,6 +607,7 @@ kernel_dbg_exc: NORMAL_EXCEPTION_PROLOG(0x260, BOOKE_INTERRUPT_PERFORMANCE_MONITOR, PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x260, PACA_EXGEN, INTS_DISABLE) + CHECK_NAPPING() addi r3,r1,STACK_FRAME_OVERHEAD bl .performance_monitor_exception b .ret_from_except_lite
The performance monitor interrupt is asynchronous, so we should check if the current processor is in napping status in the handler of this interrupt. Signed-off-by: Kevin Hao <haokexin@gmail.com> --- arch/powerpc/kernel/exceptions-64e.S | 1 + 1 file changed, 1 insertion(+)