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From: Patrick McHardy <kaber@trash.net>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: "Dâniel Fraga" <fragabr@gmail.com>, netfilter-devel@vger.kernel.org
Subject: Re: Every other char with LOG netfilter output (bug?)
Date: Tue, 28 Oct 2008 19:53:37 +0100	[thread overview]
Message-ID: <49075FB1.7050803@trash.net> (raw)
In-Reply-To: <alpine.LNX.1.10.0810281447540.9876@fbirervta.pbzchgretzou.qr>

Jan Engelhardt wrote:
> On Tuesday 2008-10-28 14:13, Patrick McHardy wrote:
>>> 	The interesting is that this behaviour started at 2.6.25 kernel
>>> version, but
>>> I couldn't find anything that was changed between .24 and .25 to cause this.
>>> Very strange.
>> I have no idea why the log output is corrupted like this, but
>> some things you could try:
>>
>> - use serial console, which should at least avoid any corruption
>>  triggered by ringbuffer overflows. It many packets are logged
>>  it will slow down your system considerably though.
> 
> JFYI, if it was a ring issue, the start of the string would be
> overwritten, and not just random chars.

I know, but judging by the few things that look like valid
LOG fragments, there seems to be more corruption than just
the ring buffer going on, so it might be worth a try.
I'd try nfnetlink_log first though.


  reply	other threads:[~2008-10-28 18:53 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-28 17:09 Every other char with LOG netfilter output (bug?) Dâniel Fraga
2008-10-28 17:40 ` Patrick McHardy
2008-10-28 17:57   ` Dâniel Fraga
2008-10-28 18:13     ` Patrick McHardy
2008-10-28 18:50       ` Jan Engelhardt
2008-10-28 18:53         ` Patrick McHardy [this message]
2008-10-28 19:16       ` Dâniel Fraga
2008-10-30  5:50       ` Dâniel Fraga
2008-10-30  7:15         ` Patrick McHardy
2008-10-30 15:02           ` Pablo Neira Ayuso
2008-10-30 23:23           ` Dâniel Fraga
2008-10-31  2:01           ` Dâniel Fraga
2008-11-03 12:42             ` Patrick McHardy
2008-11-03 15:41               ` Dâniel Fraga

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