[xfs-masters] [Bug 817] XFS driver oops when trying to mount "dirty" filesystem.

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http://oss.sgi.com/bugzilla/show_bug.cgi?id=817





--- Comment #6 from Vadim V. Galitsyn <galitsyn at gmail.com>  2009-03-20 09:04:40 CST ---
> I don't think so.  You're not even hitting the check the patch put in, but
another one.

Pardon, I have wrongly decided that cmn_err() function (that we use for log
output) should print out something in case we enable some verbose level in the
driver code. So, I have not payed attention to log messages that were placed in
the patch. That's my fault. After applying your patch I had never see that oops
again. Just be noted, before I have applied the patch I observed the problem is
not 100% reproducible, it appears from time to time.

> And the filesystem still doesn't mount which it should.

Actually, the idea was to reduce oops while mounting only.

> Just wondering, what driver do use

I'm using xfs driver that comes with 2.6.23 kernel (as I have stated at the bug
description). Be noted, I have adapted your patch for my driver version to be
able to apply it. 

> do you have barriers enabled?

How can I check that?

> Is DM or MD involved somehow?
No

I have observed that the issue can be reduced in case I will do xfs_repair just
before mount. After that the problem was not reproduced anymore (for partition
to which I have applied xfs_repair).

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