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From: ted@sanne.nlnetlabs.nl (Ted Lindgreen)
Date: Tue, 15 Feb 2005 10:05:36 +0100
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Subject: Re: few programs now getting sig 6
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In article <67b8fa69de95da88c7f15fea92a26394@mcneil.com>,
Sean McNeil  <sean@mcneil.com> wrote:
...
>#0  0x00000008009abcfc in kse_thr_interrupt () at kse_thr_interrupt.S:2
>#1  0x000000080099c4fd in _thr_sig_add (pthread=0x50d800, sig=6, 
>info=0x0)
>     at /usr/src/lib/libpthread/thread/thr_sig.c:974
>#2  0x000000080099c971 in _thr_sig_send (pthread=0x50d800, sig=6)
>     at /usr/src/lib/libpthread/thread/thr_sig.c:1106
...

Looks like the same problem happens also spamass-milter.
At startup spamass-milter produces some additional info
which may be helpful:

 sanne# /usr/local/etc/rc.d/spamass-milter.sh start
 Starting spamass_milter.
 Fatal error 'Thread has returned from _thread_switch' at line 1101 in file /usr/src/lib/libpthread/thread/thr_kern.c (errno = 0)

and a coredump analysis looks similar to above.

This error did not occur with a kernel+world build on Febr. 12,
it consistently happens with nightly builds on Febr. 14 and 15
(this morning).

I have now rebuild all relevant ports, but the error remains, so:

>I tried with a feb 8th kernel and got the same error, so the problem 
>must be in a library like libc or libpthread.

yes, I think so too.

Regards,
-- ted