Messages in this thread Patch in this message | | | From | Huang Ying <> | Subject | [PATCH -v3 2/6] x86, NMI, Add touch_nmi_watchdog to io_check_error delay | Date | Sat, 9 Oct 2010 14:49:43 +0800 |
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Prevent the long delay in io_check_error make NMI watchdog timeout.
Signed-off-by: Huang Ying <ying.huang@intel.com> --- arch/x86/kernel/traps.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -344,9 +344,11 @@ io_check_error(unsigned char reason, str 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);
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