panic: mutex tcp owned at /usr/src/sys/netinet/tcp_input.c:2475

Stefan Bethke stb at
Wed May 16 07:41:05 UTC 2007

Am 16.05.2007 um 01:24 schrieb Attilio Rao:

> 2007/5/15, Stefan Bethke <stb at>:
>> Am 15.05.2007 um 19:44 schrieb Attilio Rao:
>> > I've seen exactly what I expected (a leaked recursion on
>> > 0xffffff002ae8dbd8 mutex (that I suspect is "TCP").
>> > Since none of us can do on-line debugging in your machine, can you
>> > please download that patch, apply it, recompile your kernel and
>> > doing these tests again?:
>> >
>> >
>> > It will give a good understanding of where the recursion happens
>> > and where probabilly expected unrecursion fails.
>> Uploaded the ktrdump to
>> ktrdump-20070515a.txt.gz, the matching backtrace is at http://
> Stefan,
> definitively thanks a lot for your efforts. I think that now andre@
> has a good number of information in order to investigate.

Happy to help.  I should get the serial port today or on friday, and  
I should be able to give you console and ssh access if you're  
interested.  If you'd like me to test patches, please let me know.


Stefan Bethke <stb at>   Fon +49 170 346 0140

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