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| author | Huang Ying <ying.huang@intel.com> | 2011-01-04 22:38:09 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-05 14:22:58 +0100 |
| commit | 74d91e3c6a66359bb754fb5d8a5b54fb6ba2f9a6 (patch) | |
| tree | efd1571b8f07acbff86ce708f6ff3dd410378362 /arch/x86 | |
| parent | 554ec063982752e9a569ab9189eeffa3d96731b2 (diff) | |
| download | linux-3.10-74d91e3c6a66359bb754fb5d8a5b54fb6ba2f9a6.tar.gz linux-3.10-74d91e3c6a66359bb754fb5d8a5b54fb6ba2f9a6.tar.bz2 linux-3.10-74d91e3c6a66359bb754fb5d8a5b54fb6ba2f9a6.zip | |
x86, NMI: Add touch_nmi_watchdog to io_check_error delay
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>
LKML-Reference: <1294198689-15447-3-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | 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 bb6f0416736..c76aaca5694 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -351,9 +351,11 @@ io_check_error(unsigned char reason, struct pt_regs *regs) reason = (reason & 0xf) | 8; outb(reason, 0x61); - i = 2000; - while (--i) - udelay(1000); + i = 20000; + while (--i) { + touch_nmi_watchdog(); + udelay(100); + } reason &= ~8; outb(reason, 0x61); |