From: Jason Thomas <jason@topic.com.au>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: network connections stalls
Date: Fri, 18 Jan 2002 14:40:55 +1100 [thread overview]
Message-ID: <20020118034055.GD5653@topic.com.au> (raw)
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please CC me I'm not on the list.
Hi,
I need some help with this bug.
I've got two athlon boxes which produce this same problem with all
kernels from 2.4.18-pre4 back to 2.4.0 which is a far as I went.
It seems to be only triggered by a particular string of binary data
which I've narrowed down (it came from a pdf document). which I'll
attach now. its 735 bytes, if I change it or remove a byte it doesn't
cause the problem.
The machines are both athlon 1.1GHZ on ASUS A7V133 mobo's, thats the
only simularitys between them ones scsi the others ide ones a via-rhine
nic and the other is a tulip.
output from tcpump:
14:28:25.184415 hathor.tsa.46893 > alhazred.tsa.1234: S 2668390347:2668390347(0) win 5840 <mss 1460,sackOK,timestamp 18451301 0,nop,wscale 0> (DF)
14:28:25.184461 alhazred.tsa.1234 > hathor.tsa.46893: S 2674935738:2674935738(0) ack 2668390348 win 5792 <mss 1460,sackOK,timestamp 102014 18451301,nop,wscale 0> (DF)
14:28:25.184616 hathor.tsa.46893 > alhazred.tsa.1234: . ack 1 win 5840 <nop,nop,timestamp 18451301 102014> (DF)
14:28:25.184954 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18451301 102014> (DF)
14:28:25.393041 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18451322 102014> (DF)
14:28:25.813051 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18451364 102014> (DF)
14:28:26.653052 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18451448 102014> (DF)
14:28:28.333082 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18451616 102014> (DF)
14:28:31.182923 hathor.tsa.46893 > alhazred.tsa.1234: F 735:735(0) ack 1 win 5840 <nop,nop,timestamp 18451901 102014> (DF)
14:28:31.182947 alhazred.tsa.1234 > hathor.tsa.46893: . ack 1 win 5792 <nop,nop,timestamp 102614 18451616,nop,nop,sack sack 1 {735:736} > (DF)
14:28:31.693138 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18451952 102614> (DF)
14:28:38.413253 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18452624 102614> (DF)
14:28:51.853463 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18453968 102614> (DF)
14:29:18.733896 hathor.tsa.46893 > alhazred.tsa.1234: P 1:735(734) ack 1 win 5840 <nop,nop,timestamp 18456656 102614> (DF)
I've tried this with both netcat and rsh, which produce the same
results. I've also tested sending the same string from a solaris box
which results in the same error.
I've also reduce the kernel to a bare minimum of drivers. I can send the
.config if anyone wants it.
The problem does not show its self on the loopback device.
I am willing to put some effort into debugging this if someone can help
me figure out where to start. If there is any other info required let me
know.
Thanks.
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next reply other threads:[~2002-01-18 3:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-18 3:40 Jason Thomas [this message]
2002-01-18 7:38 ` network connections stalls David S. Miller
2002-01-18 23:12 ` Jason Thomas
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