* umount fails with device is busy
@ 2011-03-21 10:53 stress_buster
2011-03-21 11:29 ` Roger Willcocks
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: stress_buster @ 2011-03-21 10:53 UTC (permalink / raw)
To: linux-xfs
I'm trying to run xfs_repair on my filesystem:
Firstly to unmount the fs
Quote:
umount /myfs
umount: /myfs: device is busy
umount: /myfs: device is busy
Quote:
lsof /dev/sda
-show none ie nothing seems to be 'touching' the disk.
confused why its still showing device is busy
i did a force unmount then
Quote:
#umount -l /dev/sda
but then when I try to run xfs_repair
Quote:
xfs_repair -n /dev/sda, it
xfs_repair: /dev/sda contains a mounted and writable filesystem
fatal error -- couldn't initialize XFS library
lsof /dev/sda
shows nothing ie nothing seems to be 'touching' the disk.
makes me wonder whether this is a xfs issue now??
Any thoughts???
Thanks
David
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: umount fails with device is busy
2011-03-21 10:53 umount fails with device is busy stress_buster
@ 2011-03-21 11:29 ` Roger Willcocks
2011-03-21 15:45 ` Eric Sandeen
2011-03-22 5:13 ` Dave Chinner
2 siblings, 0 replies; 6+ messages in thread
From: Roger Willcocks @ 2011-03-21 11:29 UTC (permalink / raw)
To: stress_buster; +Cc: linux-xfs
>
> I'm trying to run xfs_repair on my filesystem:
> Firstly to unmount the fs
>
> Quote:
> umount /myfs
> umount: /myfs: device is busy
> umount: /myfs: device is busy
>
> Quote:
> lsof /dev/sda
>
> -show none ie nothing seems to be 'touching' the disk.
> confused why its still showing device is busy
Are you swapping to it ?
# cat /proc/ swaps
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: umount fails with device is busy
2011-03-21 10:53 umount fails with device is busy stress_buster
2011-03-21 11:29 ` Roger Willcocks
@ 2011-03-21 15:45 ` Eric Sandeen
2011-03-22 5:13 ` Dave Chinner
2 siblings, 0 replies; 6+ messages in thread
From: Eric Sandeen @ 2011-03-21 15:45 UTC (permalink / raw)
To: stress_buster; +Cc: linux-xfs
On 3/21/11 5:53 AM, stress_buster wrote:
>
> I'm trying to run xfs_repair on my filesystem:
> Firstly to unmount the fs
>
> Quote:
> umount /myfs
> umount: /myfs: device is busy
> umount: /myfs: device is busy
>
> Quote:
> lsof /dev/sda
>
> -show none ie nothing seems to be 'touching' the disk.
> confused why its still showing device is busy
>
> i did a force unmount then
>
> Quote:
> #umount -l /dev/sda
that's not really enough.
Checking swap is a good idea, as is looking for loopback mounted
files on the fs...
-Eric
> but then when I try to run xfs_repair
>
> Quote:
> xfs_repair -n /dev/sda, it
> xfs_repair: /dev/sda contains a mounted and writable filesystem
>
> fatal error -- couldn't initialize XFS library
>
> lsof /dev/sda
> shows nothing ie nothing seems to be 'touching' the disk.
> makes me wonder whether this is a xfs issue now??
>
>
> Any thoughts???
>
> Thanks
> David
>
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: umount fails with device is busy
2011-03-21 10:53 umount fails with device is busy stress_buster
2011-03-21 11:29 ` Roger Willcocks
2011-03-21 15:45 ` Eric Sandeen
@ 2011-03-22 5:13 ` Dave Chinner
2011-04-07 14:45 ` Leo Davis
2 siblings, 1 reply; 6+ messages in thread
From: Dave Chinner @ 2011-03-22 5:13 UTC (permalink / raw)
To: stress_buster; +Cc: linux-xfs
On Mon, Mar 21, 2011 at 03:53:04AM -0700, stress_buster wrote:
>
> I'm trying to run xfs_repair on my filesystem:
Why do you need to do this?
> Firstly to unmount the fs
>
> Quote:
> umount /myfs
> umount: /myfs: device is busy
> umount: /myfs: device is busy
>
> Quote:
> lsof /dev/sda
>
> -show none ie nothing seems to be 'touching' the disk.
> confused why its still showing device is busy
Did you have an oops or a filesystem shutdown? i.e. anything in
syslog of note?
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: umount fails with device is busy
2011-03-22 5:13 ` Dave Chinner
@ 2011-04-07 14:45 ` Leo Davis
0 siblings, 0 replies; 6+ messages in thread
From: Leo Davis @ 2011-04-07 14:45 UTC (permalink / raw)
To: Dave Chinner; +Cc: linux-xfs
[-- Attachment #1.1: Type: text/plain, Size: 1410 bytes --]
missed your reply on this one.... I'd almost given up on this one.....
>Why do you need to do this?
I have an app which occassionally throws errors suggesting the fs is at fault.
But in most cases, I'm not sure whether it's the fs or the raid underneath thats
causing it.
So I usually run xfs_repair with the -n switch.
Did you have an oops or a filesystem shutdown? i.e. anything in
syslog of note?
not recently, but in the past had some unclean shutdowns and on one instance I
did a umount -l on the raid set when it refused to unmount gracefully.
But I had re-raided the server since.
________________________________
From: Dave Chinner <david@fromorbit.com>
To: stress_buster <leo1783@yahoo.com>
Cc: linux-xfs@oss.sgi.com
Sent: Tue, March 22, 2011 10:43:53 AM
Subject: Re: umount fails with device is busy
On Mon, Mar 21, 2011 at 03:53:04AM -0700, stress_buster wrote:
>
> I'm trying to run xfs_repair on my filesystem:
Why do you need to do this?
> Firstly to unmount the fs
>
> Quote:
> umount /myfs
> umount: /myfs: device is busy
> umount: /myfs: device is busy
>
> Quote:
> lsof /dev/sda
>
> -show none ie nothing seems to be 'touching' the disk.
> confused why its still showing device is busy
Did you have an oops or a filesystem shutdown? i.e. anything in
syslog of note?
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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^ permalink raw reply [flat|nested] 6+ messages in thread
* umount fails with device is busy
@ 2011-03-21 10:54 stress_buster
0 siblings, 0 replies; 6+ messages in thread
From: stress_buster @ 2011-03-21 10:54 UTC (permalink / raw)
To: linux-xfs
I'm trying to run xfs_repair on my filesystem:
Firstly to unmount the fs
umount /myfs
umount: /myfs: device is busy
umount: /myfs: device is busy
lsof /dev/sda
-show none ie nothing seems to be 'touching' the disk.
confused why its still showing device is busy
i did a force unmount then
#umount -l /dev/sda
but then when I try to run xfs_repair
xfs_repair -n /dev/sda, it
xfs_repair: /dev/sda contains a mounted and writable filesystem
fatal error -- couldn't initialize XFS library
lsof /dev/sda
shows nothing ie nothing seems to be 'touching' the disk.
makes me wonder whether this is a xfs issue now??
Any thoughts???
Thanks
David
--
View this message in context: http://old.nabble.com/umount-fails-with-device-is-busy-tp31199421p31199421.html
Sent from the linux-xfs mailing list archive at Nabble.com.
_______________________________________________
xfs mailing list
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http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply [flat|nested] 6+ messages in thread
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2011-03-21 10:53 umount fails with device is busy stress_buster
2011-03-21 11:29 ` Roger Willcocks
2011-03-21 15:45 ` Eric Sandeen
2011-03-22 5:13 ` Dave Chinner
2011-04-07 14:45 ` Leo Davis
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