[mythtv] Backend crashing except when under gdb

[Michael T. Dean]

  On 09/24/2010 10:08 AM, freedenizen wrote:
> So, I've been having a problem with my backend crashing a lot.  I'm
> trying to get a real backtrace under gdb now, but haven't been able to
> get it to get it to crash.  In the logs when it crashes (not under gdb
> of course) I see:
> *** glibc detected *** /usr/local/bin/mythbackend: corrupted
> double-linked list: 0x085c84b8 ***
> ======= Backtrace: =========
> /lib/libc.so.6(+0x6c534)[0xb4bc8534]
> /lib/libc.so.6(+0x6ca79)[0xb4bc8a79]
> /lib/libc.so.6(+0x6eab6)[0xb4bcaab6]
> /lib/libc.so.6(__libc_malloc+0x5e)[0xb4bcce5e]
> /usr/lib/qt4/libQtCore.so.4(_Z7qMallocj+0x1e)[0xb4f28634]
> /usr/lib/qt4/libQtCore.so.4(_ZN7QString17fromLatin1_helperEPKci+0x3f)[0xb4f73689]
> /usr/lib/qt4/libQtCore.so.4(_ZN7QString16fromAscii_helperEPKci+0xd9)[0xb4f7a33b]
> /usr/local/lib/libmythupnp-0.24.so.0(_ZN4SSDP11ProcessDataEP13MSocketDevice+0xf1)[0xb69e1cc1]
> [0xb2a05f88]
> /usr/local/bin/mythbackend(_ZN7QThread11qt_metacastEPKc+0x0)[0x8057674]
>
> Anyone have any idea where to look?  I've tried recompiling various
> dependencies and then recompiling myth, deleted everything myth
> related from /usr/local/lib/, but no luck.  I have a feeling this
> could entirely be a fault on my system but I'm not sure where to begin
> poking.

http://www.mythtv.org/wiki/Debugging#Using_core_files

Mike