Neil Brown (on Fri, 12 May 2006 17:11:11 +1000) wrote:
>On Friday May 12, [email protected] wrote:
>> Doing poweroff on 2.6.17-rc4 i386, SMP
>>
>> BUG halt/4781, lock held at task exit time!
>> [f7001b34] {mddev_find}
>> .. held by: halt: 4781 [f7cd4030, 118]
>> ... acquired at: md_notify_reboot+0x3a/0xa9 [md_mod}
>>
>
>I suspect this will fix it.
>Is it repeatable? Can you test?
>
>Thanks,
>NeilBrown
>
>
>Signed-off-by: Neil Brown <[email protected]>
>
>### Diffstat output
> ./drivers/md/md.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
>diff ./drivers/md/md.c~current~ ./drivers/md/md.c
>--- ./drivers/md/md.c~current~ 2006-05-12 16:00:03.000000000 +1000
>+++ ./drivers/md/md.c 2006-05-12 17:10:16.000000000 +1000
>@@ -5171,8 +5171,10 @@ static int md_notify_reboot(struct notif
> printk(KERN_INFO "md: stopping all md devices.\n");
>
> ITERATE_MDDEV(mddev,tmp)
>- if (mddev_trylock(mddev))
>+ if (mddev_trylock(mddev)) {
> do_md_stop (mddev, 1);
>+ mddev_unlock(mddev);
>+ }
> /*
> * certain more exotic SCSI devices are known to be
> * volatile wrt too early system reboots. While the
Finally got some time to test this. The problem was reproducable and
the patch fixed it.
Acked-by: Keith Owens <[email protected]>
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