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Re: [PATCH 4/8] Add test of quota accounting using fsx

To: Jan Kara <jack@xxxxxxx>
Subject: Re: [PATCH 4/8] Add test of quota accounting using fsx
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Thu, 10 Jun 2010 15:43:44 -0500
Cc: hch@xxxxxxxxxxxxx, xfs@xxxxxxxxxxx
In-reply-to: <4C1117F3.2010008@xxxxxxxxxxx>
References: <1274710459-11446-1-git-send-email-jack@xxxxxxx> <1274710459-11446-5-git-send-email-jack@xxxxxxx> <4C0FD43D.3040803@xxxxxxxxxxx> <20100610105813.GB10827@xxxxxxxxxxxxx> <4C1117F3.2010008@xxxxxxxxxxx>
User-agent: Thunderbird (Macintosh/20100228)
Eric Sandeen wrote:
> Jan Kara wrote:
>> On Wed 09-06-10 12:49:49, Eric Sandeen wrote:
>>> Jan Kara wrote:
>>>> Run fsx (and also several fsx threads in parallel) and verify that
>>>> quota accounting is correct after they finish.
>>> Jan, I'm having trouble with this one on XFS for some reason, with our 
>>> RHEL6 kernel and quota-3.17...

These don't seem to be working properly at all with xfs.

In quota-3.17, quotaoff seems to turn off both accounting and enforcement,
despite what the man page says - 

       To turn off quota limit enforcement on any XFS filesystem, first make 
       that quota accounting and enforcement are both turned on using repquota 
       filesystem.   Then,  use  quotaoff -v filesystem to disable limit 
       ment.  This may be done while the filesystem is mounted.

And once accounting is turned off, it can't be re-enabled without a remount.

With quota-4.0.0-preX, it seems to turn off -neither- accounting nor 
based on hch's test:

[14:59]  <hch> qemu1:~/xfstests-dev# mount -o quota /dev/vdb5 /mnt/test
[14:59]  <hch> qemu1:~/xfstests-dev# quotaon -f /dev/vdb5
[15:00]  <hch> qemu1:~/xfstests-dev# quotaon /dev/vdb5
[15:00]  <hch> quotaon: Enable XFS group quota accounting during mount
[15:00]  <hch> quotaon: Enforcing user quota already on /dev/vdb5

Argh ;)


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