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Date:      Wed, 23 Oct 2002 16:21:36 -0700
From:      Peter Wemm <peter@wemm.org>
To:        current@freebsd.org
Subject:   mozilla vs linux emulation in -current?
Message-ID:  <20021023232136.443022A88D@canning.wemm.org>

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Has anybody else noticed this in -current?  Mozilla hangs for a minute or
so at regular intervals..

  PID USERNAME PRI NICE   SIZE    RES STATE  C   TIME   WCPU    CPU COMMAND
  676 peter      4    0 54492K 39760K connec 1   2:48  0.83%  0.83% mozilla-bin
...

Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)
tcp4       0      0  daintree.20167         *.16001                SYN_SENT
....

peter@daintree[4:07pm]/home/src/sys/i386/conf-134> sockstat | grep 676
peter    mozilla-bi 676   6  stream -> /tmp/.X11-unix/X0
peter    mozilla-bi 676   34 stream -> 216.145.52.172:1019
peter    mozilla-bi 676   36 stream -> 216.145.52.172:1019
peter    mozilla-bi 676   38 stream -> 216.145.52.172:1019
peter    mozilla-bi 676   40 stream -> 216.145.52.172:1019
peter    mozilla-bi 676   42 stream -> 216.145.52.172:1019
peter    mozilla-bi 676   44 stream -> /tmp/.X11-unix/X0
peter    mozilla-bi 676   49 stream -> 216.145.52.172:1019
peter    mozilla-bi 676   51 stream -> 216.145.52.172:1019
peter    mozilla-bi 676   53 tcp4   216.145.52.172:20167  *:16001
peter    mozilla-bi 676   58 stream -> 216.145.52.172:1019

# tcpdump -i xl0 -s 1500 -n 'port 16001'
16:07:31.896548 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 16344,nop,wscale 1,nop,nop,timestamp 433950 0,nop,nop,ccnew 172> (DF)
16:07:34.893961 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 1460,nop,wscale 1,nop,nop,timestamp 434250 0,nop,nop,ccnew 172> (DF)
16:07:38.094055 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 1460,nop,wscale 1,nop,nop,timestamp 434570 0,nop,nop,ccnew 172> (DF)
16:07:41.294196 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 1460> (DF)
16:07:44.494325 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 512>
16:07:47.694443 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 512>
16:07:53.894682 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 512>
16:08:06.095119 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 512>
16:08:30.296041 216.145.52.172.20167 > 0.0.0.0.16001: S 1175926117:1175926117(0) win 65535 <mss 512>

Isn't this a rather strange address to try and connect to? :-]

Wasn't somebody tinkering with the sin_len stuff recently?  COMPAT_43 used
to do evil things, and the linux emulation depended on that.

This particular mozilla is rather old, but neither it nor the rest of the
linux environment have been touched for months, and up until recently, it
was working fine.    Unfortunately, I'd let this machine lag behind
-current a bit, so I'm not sure when the problem first turned up.

Addendum: port 16001 appears to be used by esd (esound daemon), which I do
not have installed and have never used. I removed pcm from this machine.
It seems mozilla is trying to connect to port 16001, and for some reason it
is going out on the wire now.. :-(  Isn't tcp supposed to stop this sort
of thing from going onto the wire?

Cheers,
-Peter
--
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5


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