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Message-Id: <201102031220.46250.Martin@lichtvoll.de>
Date: Thu, 3 Feb 2011 12:20:32 +0100
From: Martin Steigerwald <Martin@...htvoll.de>
To: "Rafael J. Wysocki" <rjw@...k.pl>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Kernel Testers List <kernel-testers@...r.kernel.org>,
Maciej Rutecki <maciej.rutecki@...il.com>,
Florian Mickler <florian@...kler.org>,
linux-btrfs@...r.kernel.org, "Helmut Hullen" <Hullen@...nline.de>
Subject: Re: [Bug #27842] [regression?] hang with 2.6.37 on a BTRFS test machine
Added linux-btrfs and Helmut Hullen, who seemed to experience hangs on a
T23 with BTRFS as well, to Cc.
Am Thursday 03 February 2011 schrieb Rafael J. Wysocki:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.36 and 2.6.37.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.36 and 2.6.37. Please verify if it still should
> be listed and let the tracking team know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=27842
> Subject : [regression?] hang with 2.6.37 on a BTRFS test machine
> Submitter : Martin Steigerwald <Martin@...htvoll.de>
> Date : 2011-01-23 12:06 (11 days old)
> Message-ID : <201101231306.23069.Martin@...htvoll.de>
> References : http://marc.info/?l=linux-kernel&m=129578445613283&w=2
Well I now tested with 2.6.36 for more than a week and I did not see any
of such hangs upto now. The machine seems table with 2.6.36. So I think
its really an regression of 2.6.37.
I am stuck with what to try next. Since trying to track it down to a
specific commit appears too involved for me and its appears also quite
laborious to get any value debug information out of the kernel - cause it
can take days for the bug to appear -, I am inclined to either test with
2.6.37.1 once its available or just give it a go with 2.6.38-rc3 or rc4.
Maybe 2.6.38-rc3/4 would be the best bet, I have seen a report on the
btrfs mailing list of 2.6.38 fixing a BTRFS hang bug that appeared with
2.6.37. I am just not sure whether its related or not.
Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped buffer of
the same page
http://marc.info/?l=linux-btrfs&m=129623925116051&w=2
There is another thread about 2.6.37 related BTRFS hang:
flush-btrfs-1 hangs when building openwrt
http://marc.info/?l=linux-btrfs&m=129594547616298&w=2
I will add this as comment to the bug report as well.
Thanks,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
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