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Re: XFS filesystem claims to be mounted after a disconnect

To: Eric Sandeen <sandeen@xxxxxxxxxxx>, xfs@xxxxxxxxxxx
Subject: Re: XFS filesystem claims to be mounted after a disconnect
From: Martin Papik <mp6058@xxxxxxxxx>
Date: Fri, 02 May 2014 19:44:14 +0300
Delivered-to: xfs@xxxxxxxxxxx
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> so something, somewhere thinks it's mounted.  Check /proc/mounts?

There was nothing in /proc/mounts, nor was there any visible reference
in /proc. If there was, the first thing I would have done is to make
sure no process is using the FS. But I only did it later based on a hunch.

>> Please let me know what I can do short of zeroing the log, which
>> I believe would result in some data loss.
> 
> Hate to say it, but a reboot may be simplest.  Zeroing the log
> won't help.  OTOH, if you lost USB connectivity, you already lost
> some data.

Please explain why losing USB connectivity means I've lost data. Is a
SATA/SCSI/NBD disconnect less likely to lose data?

Is XFS is not stable enough to function without a need to reboot in
case of a relatively minor HW failure? Minor meaning affecting only
some disks.

Martin
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