linux-kernel - Re: [Bug #11805] mounting XFS produces a segfault

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Date:	Sun, 26 Oct 2008 12:14:27 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Dave Chinner <david@...morbit.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Tiago Maluta <maluta_tiago@...oo.com.br>
Subject: Re: [Bug #11805] mounting XFS produces a segfault

On Sunday, 26 of October 2008, Dave Chinner wrote:
> On Sat, Oct 25, 2008 at 10:06:44PM +0200, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.27.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11805
> > Subject		: mounting XFS produces a segfault
> > Submitter	: Tiago Maluta <maluta_tiago@...oo.com.br>
> > Date		: 2008-10-21 18:00 (5 days old)
> 
> Ah - this was reported as a 2.6.26 -> 2.6.27 regression, not a
> .27->.28-rcX regression.
> 
> Even so, it's not obviously an XFS regression as the problem is
> that alloc_pages(GFP_KERNEL) is the new failure on .27. The fact
> that XFS never handled the allocation failure is not a new bug
> or regression - it has never caught failures during log
> allocation...
> 
> So really, if you want to look for a regression here, it is the
> change of behaviour in the VM leading to a memory allocation failure
> where it has never, ever previously failed...

OK, I moved it to the list of regressions introduced between .26 and .27.

Thanks,
Rafael
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