Re: mount of ext2fs volume stuck in "D+" state (disk uninterruptible
Joe Peterson wrote:[color=blue]
> Kris Kennaway wrote:[color=green]
>> Joe Peterson wrote:[color=darkred]
>>> I just tried (under FreeBSD 7.0-RC1) to mount an ext2fs volume - I've
>>> mounted it before with no trouble on this same FreeBSD version. This
>>> time, mount appeared to hang. I noticed that I can see the contents of
>>> the volume under the mount point, so the mount seemed to "work", but the
>>> process is stuff. "ps" shows:
>>> root 1307 0.0 0.0 3156 792 p6 D+ 5:21PM 0:00.00 mount
>>> The "ps" man page says that "D" means: "Marks a process in disk (or
>>> other short term, uninterruptible) wait."
>>> Is there any way I can investigate what is going on? I cannot umount
>>> (device busy) or break out of the mount command...[/color]
> But unfortunately I do not have KDB and DDB compiled into the kernel.
> And, obviously, if I reboot, I will lose this opportunity. I suspect
> this to be an intermittent thing. Is there anything I can extract while
> the system is running that would be useful?
> Thanks, Joe
You can run kgdb on /dev/mem to obtain the backtrace.
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