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Re: update: multimedia/transcode



Am Donnerstag, 13. Oktober 2005 03:32 schrieb Jacob Meuser:

Hi Jacob,

> check if it was tcdemux that segfaulted.  if it is. and you can get
> useful backtrace, I'd like to see it.  bugs in the VOB demuxing code
> seem to have been exposed by the new malloc ... the segfaults started
> suddenly for me a few months ago on -current.  I've tried tracking
> down where exctly the problem code is, but I have not pinpointed it
> yet.

It seems to be tcdemux. Here's a trace of the segfault:

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This GDB was configured as "i386-unknown-openbsd3.8"...
Core was generated by `tcdemux'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/local/lib/libdvdread.so.3.0...done.
Loaded symbols for /usr/local/lib/libdvdread.so.3.0
Reading symbols from /usr/local/lib/libdv.so.4.2...done.
Loaded symbols for /usr/local/lib/libdv.so.4.2
Reading symbols from /usr/lib/libm.so.2.0...done.
Loaded symbols for /usr/lib/libm.so.2.0
Reading symbols from /usr/lib/libz.so.4.1...done.
Loaded symbols for /usr/lib/libz.so.4.1
Reading symbols from /usr/lib/libpthread.so.6.1...done.
Loaded symbols for /usr/lib/libpthread.so.6.1
Reading symbols from /usr/lib/libc.so.38.2...done.
Loaded symbols for /usr/lib/libc.so.38.2
Reading symbols from /usr/libexec/ld.so...done.
Loaded symbols for /usr/libexec/ld.so
#0  0x1c007cba in probe_picext (buffer=0x8a60effe "\205D" <Address 0x8a60f000 
out of bounds>)
    
at /usr/ports/multimedia/transcode/w-transcode-0.6.14p2/transcode-0.6.14/import/aux_pes.c:277
277       return(buffer[2] & 3);
(gdb) where
#0  0x1c007cba in probe_picext (buffer=0x8a60effe "\205D" <Address 0x8a60f000 
out of bounds>)
    
at /usr/ports/multimedia/transcode/w-transcode-0.6.14p2/transcode-0.6.14/import/aux_pes.c:277
#1  0x1c00896d in scan_pack_ext (buf=0x8a60e800 "")
    
at /usr/ports/multimedia/transcode/w-transcode-0.6.14p2/transcode-0.6.14/import/scan_pack.c:153
#2  0x1c006cfe in tcdemux_thread (ipipe=0xcfbeb4ac)
    
at /usr/ports/multimedia/transcode/w-transcode-0.6.14p2/transcode-0.6.14/import/demuxer.c:574
#3  0x1c001c49 in main (argc=3, argv=0xcfbeb72f)
   
at /usr/ports/multimedia/transcode/w-transcode-0.6.14p2/transcode-0.6.14/import/tcdemux.c:369

Hope this helps. If you need any more testing, I'll be happy to help you.

Regards,
Stephan