linux-kernel - Re: EXT4 ENOSPC Bug

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Message-Id: <200812031918.38067.andres@anarazel.de>
Date:	Wed, 3 Dec 2008 19:18:33 +0100
From:	Andres Freund <andres@...razel.de>
To:	Theodore Tso <tytso@....edu>
Cc:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	"Jonathan Bastien-Filiatrault" <joe@....org>,
	Andreas Dilger <adilger@....com>,
	LKML <linux-kernel@...r.kernel.org>, linux-ext4@...r.kernel.org
Subject: Re: EXT4 ENOSPC Bug

On Wednesday 03 December 2008 18:23:09 Theodore Tso wrote:
> On Wed, Dec 03, 2008 at 09:04:41PM +0530, Aneesh Kumar K.V wrote:
> > Can you make sure you have the below patch in the kernel.
> > c001077f4003fa75793bb62979baa6241dd8eb19
Yes, I do have that patch in kernel (verified through git and looking at the 
source). Its a part of linus' tree.

> Mmmm, good point, thanks.  I had been assuming this was caused by some
> failure in the delayed allocation code with block accounting, but we
> also had a bug fix that was causing a problem with inode allocation.
>
> That doesn't explain a report of an ENOSPC error with metadata only
> changes were failing (i.e., touching a file that already exists),
> although I don't think we've gotten a lot of information about that
> scenario and it feels a little unconfirmed to me still...
Unfortunately I am not absolutely sure (I reported this) as well, this is the 
reason I did not report it at first but only after no culprit could be found.

Still no luck reproducing it once more.


Andres


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