From: Johannes Truschnigg <johannes@truschnigg.info>
To: Willy Tarreau <w@1wt.eu>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
Hillf Danton <dhillf@gmail.com>,
linux-kernel@vger.kernel.org,
Linux-Netdev <netdev@vger.kernel.org>
Subject: Re: PROBLEM: Silent data corruption when using sendfile()
Date: Sat, 14 Jul 2012 12:13:21 +0200 [thread overview]
Message-ID: <20120714101321.GA26329@vault.local> (raw)
In-Reply-To: <20120714083136.GO16256@1wt.eu>
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On Sat, Jul 14, 2012 at 10:31:36AM +0200, Willy Tarreau wrote:
> > Please Johannes could you try latest kernel tree ?
>
> It would be useful, especially given the amount of changes you performed
> in this area in latest version, it could be very possible that this new
> bug got fixed as a side effect !
I upgraded to 3.4.4 (identical config as the 3.4.0 build I've been running)
and what can I say - the problem really seems to have disappeared. I performed
about 3700 iterations of my previos tests over the night, and the data always
turned out to be OK, not a single byte turned out kaput!
I wish I would have tested that earlier, and spared you the noise... well,
maybe someone who runs into a similar problem in the future will have this
discovery save her/him some time and headaches and make her/him just upgrade
kernels :)
Thanks a lot for your polite and quick responses!
--
with best regards:
- Johannes Truschnigg ( johannes@truschnigg.info )
www: http://johannes.truschnigg.info/
phone: +43 650 2 133337
xmpp: johannes@truschnigg.info
Please do not bother me with HTML-email or attachments. Thank you.
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next prev parent reply other threads:[~2012-07-14 10:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-13 17:18 PROBLEM: Silent data corruption when using sendfile() Johannes Truschnigg
2012-07-14 8:04 ` Hillf Danton
2012-07-14 8:20 ` Eric Dumazet
2012-07-14 8:31 ` Willy Tarreau
2012-07-14 10:13 ` Johannes Truschnigg [this message]
2012-07-14 10:33 ` Eric Dumazet
2012-07-14 10:44 ` Willy Tarreau
2012-07-14 11:06 ` Eric Dumazet
2012-07-14 13:15 ` Willy Tarreau
2012-07-14 17:09 ` Johannes Truschnigg
2012-07-14 11:44 ` Thorsten Kranzkowski
2012-07-14 14:08 ` Hillf Danton
2012-07-14 14:19 ` Eric Dumazet
2012-07-14 14:56 ` Willy Tarreau
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