Re: Current trouble

On Tue, Jan 20, 2015 at 08:55:05AM +0000, Poul-Henning Kamp wrote:
> I just tried current as of yesterday and had to give up rather quickly.
> 
> unbound sig#11'ed on bootup, couldn't find a coredump.
> 
> Trying to read a PDF file with evince I got one:
> 
> $ evince
> Fatal error 'mutex is on list' at line 424 in file /freebsd/svn_src/head/lib/libthr/thread/thr_mutex.c (errno = 2)
> Abort (core dumped)
This message typically mean that non-async signal safe function was
called after fork in the multithreaded process.

Cannot say anything more useful. The backtrace below clearly indicates that
a new thread was in the process of being created, but what was the global
state of process ?
> 
> Backtrace looks like:
> 
> #0  0x000000080457648a in thr_kill () from /lib/libc.so.7
> #1  0x00000008045763f8 in raise () from /lib/libc.so.7
> #2  0x0000000804574959 in abort () from /lib/libc.so.7
> #3  0x000000080422660a in pthread_attr_getaffinity_np () from /lib/libthr.so.3
> #4  0x0000000804221c00 in pthread_mutex_destroy () from /lib/libthr.so.3
> #5  0x0000000810ee0aa9 in Array::decRef () from /usr/local/lib/libpoppler.so.46
> #6  0x0000000810f524ef in Object::free () from /usr/local/lib/libpoppler.so.46
> #7  0x0000000810f07408 in Gfx::go () from /usr/local/lib/libpoppler.so.46
> #8  0x0000000810f06ecb in Gfx::display () from /usr/local/lib/libpoppler.so.46
> #9  0x0000000810f57058 in Page::displaySlice ()
>    from /usr/local/lib/libpoppler.so.46
> #10 0x0000000810a3b3e2 in _poppler_page_render ()
>    from /usr/local/lib/libpoppler-glib.so.8
> #11 0x000000081080df51 in register_evince_backend ()
>    from /usr/local/lib/evince/4/backends/libpdfdocument.so
> #12 0x000000081080d2c5 in register_evince_backend ()
>    from /usr/local/lib/evince/4/backends/libpdfdocument.so
> #13 0x0000000800ae4cc1 in ev_job_print_set_cairo ()
>    from /usr/local/lib/libevview3.so.3
> #14 0x0000000800ae5bc0 in ev_job_scheduler_get_running_thread_job ()
>    from /usr/local/lib/libevview3.so.3
> #15 0x00000008039360fa in g_thread_proxy ()
>    from /usr/local/lib/libglib-2.0.so.0
> #16 0x000000080421b6e4 in pthread_create () from /lib/libthr.so.3
> #17 0x0000000000000000 in ?? ()
> 
> I'm not sure if these two observations are connected, but it was enough
> to make -current unworkable for me...
> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk_at_FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
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