Messages in this thread Patch in this message | | | From | Don Zickus <> | Subject | [PATCH 2/9] x86, NMI: Add touch_nmi_watchdog to io_check_error delay | Date | Tue, 30 Nov 2010 17:27:23 -0500 |
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From: Huang Ying <ying.huang@intel.com>
Prevent the long delay in io_check_error making NMI watchdog timeout.
Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Don Zickus <dzickus@redhat.com> --- arch/x86/kernel/traps.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 10a43f5..c7fd1ce 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -353,9 +353,11 @@ io_check_error(unsigned char reason, struct pt_regs *regs) reason = (reason & NMI_REASON_CLEAR_MASK) | NMI_REASON_CLEAR_IOCHK; outb(reason, NMI_REASON_PORT); - i = 2000; - while (--i) - udelay(1000); + i = 20000; + while (--i) { + touch_nmi_watchdog(); + udelay(100); + } reason &= ~NMI_REASON_CLEAR_IOCHK; outb(reason, NMI_REASON_PORT); -- 1.7.3.2
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