musicpd segfaults on run - was advised that it's an issue with the system

[Tom Evans]

On Fri, 2008-03-07 at 23:07 -0700, Ross Penner wrote:
> Hi,
> 
> I've recently run the upgrade gamut and moved from 6.3 to 7.0. I've
> had a few hick ups but this one I can't resolve. I used musicpd
> (http://www.freshports.org/audio/musicpd/) on 6.3 to stream to a
> shoutcast server. When I start mpd on 7.0, it immediately has a
> segmentation fault and dumps its core.
> 
> I discussed the issue in the musicpd irc channel and I was advised
> that it seemed like it was an issue with the system, not with musicpd.
> Since upgrading to 7.0, I've reinstalled all my ports and since
> discovering the problem, I've reinstalled musicpd specifically. The
> backtrace from gdb is as follows:
> 
> #0  0x28140b15 in pthread_setcancelstate () from /lib/libthr.so.3
> #1  0x281388ac in open () from /lib/libthr.so.3
> #2  0x286ac269 in __stack_chk_fail () from /lib/libssp.so.0
> #3  0x00000000 in ?? ()
> #4  0xbfbfe6a8 in ?? ()
> #5  0x28084ead in _rtld_thread_init () from /libexec/ld-elf.so.1
> Previous frame inner to this frame (corrupt stack?)
> 
> 
> Any help or direction I can get to finding the solution to this
> problem would be greatly appreciated.

musicpd doesn't really like playing with libthr. I find remapping libthr
using /etc/libmap.conf is an adequate workaround on 7.0.

[/usr/local/bin/mpd]
libthr.so.3             libpthread.so.2

FYI, with this setup, mpd plays nicely with icecast on 7.0

Tom
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