Re: [2.6.14-rc3] BUG: soft lockup detected on CPU#0

From: Ingo Molnar
Date: Tue Oct 11 2005 - 01:06:41 EST

* Andrew Morton <akpm@xxxxxxxx> wrote:

> Hi there, all.
> I have been running kernel 2.6.14-rc3 for some time now and I see some
> bugs.
> One of them is a soft lockup detected on CPU#0 (the only CPU that I
> have) during the stage when the kernel is probing for IDE
> controllers/devices.
> Here is the relevant part of the dmesg log (the whole dmesg log is
> attached):

does the patch below help?



should solve false-positive soft lockup messages during IDE init.

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>


drivers/ide/ide-iops.c | 1 +
1 files changed, 1 insertion(+)

Index: linux/drivers/ide/ide-iops.c
--- linux.orig/drivers/ide/ide-iops.c
+++ linux/drivers/ide/ide-iops.c
@@ -1247,6 +1247,7 @@ int ide_wait_not_busy(ide_hwif_t *hwif,
if (stat == 0xff)
return -ENODEV;
+ touch_softlockup_watchdog();
return -EBUSY;
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