From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org, Greg KH <gregkh@linuxfoundation.org>,
Theodore Tso <tytso@MIT.EDU>,
adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org
Subject: Re: ext4 hung tasks in linux-stable 3.0.41
Date: Fri, 31 Aug 2012 11:51:48 +0200 [thread overview]
Message-ID: <50408934.9070305@profihost.ag> (raw)
In-Reply-To: <20120831092859.GB19786@quack.suse.cz>
Am 31.08.2012 11:28, schrieb Jan Kara:
> Hello,
>
> On Fri 31-08-12 09:43:37, Stefan Priebe - Profihost AG wrote:
>> i'm expected every night a hang of my rsync backup process, doing a
>> backup to an ext4 filesystem. Always throwing Call traces.
>>
>> The hung task messages are really long so i posted it to pastebin:
>> http://pastebin.com/raw.php?i=9v7HEvjA
>>
>> Used kernel: vanilla 3.0.41
>>
>> Is this problem known? Or is there a fix for 3.0.X available?
> From a quick look, processes are waiting for IO so it may be that your
> disk is just loaded... Did it start happening after some change? Or do you
> experience unexpectedly low performance?
The main disk is XFS. The backup disk is ext4. The backup disk is doing
nothing else than this SINGLE rsync task / process. So the only I/O is
rsync itself.
So i don't expect low performance as the main disk is XFS ;-)
Greets,
Stefan
next prev parent reply other threads:[~2012-08-31 9:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-31 7:43 ext4 hung tasks in linux-stable 3.0.41 Stefan Priebe - Profihost AG
2012-08-31 9:28 ` Jan Kara
2012-08-31 9:51 ` Stefan Priebe - Profihost AG [this message]
2012-08-31 17:59 ` Theodore Ts'o
2012-09-01 8:41 ` Stefan Priebe
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