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    Subject[patch] IDE: Touch NMI watchdog during resume from STR
    When resuming from suspend-to-RAM, the NMI watchdog detects a lockup in 
    Here's a screenshot of the trace taken by a digital camera:

    Let's touch the NMI watchdog in ide_wait_not_busy. The system then
    resumes correctly from STR.

    Signed-off-by: Michal Schmidt <>

    diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
    index 6571652..77703ac 100644
    --- a/drivers/ide/ide-iops.c
    +++ b/drivers/ide/ide-iops.c
    @@ -23,6 +23,7 @@ #include <linux/delay.h>
    #include <linux/hdreg.h>
    #include <linux/ide.h>
    #include <linux/bitops.h>
    +#include <linux/nmi.h>

    #include <asm/byteorder.h>
    #include <asm/irq.h>
    @@ -1243,6 +1244,7 @@ int ide_wait_not_busy(ide_hwif_t *hwif,
    if (stat == 0xff)
    return -ENODEV;
    + touch_nmi_watchdog();
    return -EBUSY;

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      Last update: 2006-07-13 12:17    [W:0.020 / U:7.280 seconds]
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