>From stepping through it looks like the problem is that end is null on this
line? ( tcdemux.c:218 ; the code appears to be exactly the same in hg )
I can't see end being set anywhere, so I don't understand how this is meant to
work.
Michael
On Friday 09 April 2010 07:32:32 Michael Donaghy wrote:
> I'm happy to try and reproduce against CVS, but CVS doesn't seem to be
> there? In transcode 1.1.5 I'm getting a segfault if I try and run tcdemux
> with any -A option. (-A and nothing else gets a help message, but -A and
> then any string appears to trigger the segfault) Obviously this happens
> when giving it a file and so forth, but it happens even with no other
> options given:
>
> md...@arcueid ~ $ gdb -q tcdemux
> Reading symbols from /usr/bin/tcdemux...Reading symbols from
> /usr/lib64/debug/usr/bin/tcdemux.debug...done.
> done.
> (gdb) run -A 0x80 -q 2
> Starting program: /usr/bin/tcdemux -A 0x80 -q 2
> warning: no loadable sections found in added symbol-file
> /usr/lib64/debug/lib64/ld-2.11.so.debug
> warning: no loadable sections found in added symbol-file
> /usr/lib64/debug/usr/lib64/libdv.so.4.0.3.debug
> warning: no loadable sections found in added symbol-file
> /usr/lib64/debug/usr/lib64/libdvdread.so.4.1.2.debug
> [Thread debugging using libthread_db enabled]
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007ffff71b9dc2 in ____strtoll_l_internal () from /lib/libc.so.6
> (gdb) where
> #0 0x00007ffff71b9dc2 in ____strtoll_l_internal () from /lib/libc.so.6
> #1 0x0000000000402e01 in main (argc=5, argv=0x7fffffffd638) at
> tcdemux.c:218 (gdb) bt full
> #0 0x00007ffff71b9dc2 in ____strtoll_l_internal () from /lib/libc.so.6
> No symbol table info available.
> #1 0x0000000000402e01 in main (argc=5, argv=0x7fffffffd638) at
> tcdemux.c:218 ipipe = {fd_in = 0, fd_out = 0, magic = 0, track = 0, stype
> = 0, codec = 0, verbose = 0, dvd_title = 0, dvd_chapter = 0, dvd_angle =
> 0, vob_offset = 0, ps_unit = 0, ps_seq1 = 0,
> ps_seq2 = 0, ts_pid = 0, seek_allowed = 0, demux = 0, select = 0,
> subid = 0, keep_seq = 0, fps = 0, fd_log = 0, name = 0x0, nav_seek_file =
> 0x0, probe = 0, factor = 0,
> probe_info = 0x0, quality = 0, error = 0, frame_limit = {0, 0,
> 0}, hard_fps_flag = 0}
> ch = 65
> n = -10976
> user = 0
> demux_mode = 1
> npass = 0
> pass = 0x0
> new_pass = 0x0
> keep_initial_seq = 0
> hard_fps_flag = 0
> pack_sl = -1
> unit_seek = 0
> resync_seq1 = 0
> resync_seq2 = 2147483647
> a_track = 0
> v_track = 0
> subid = 128
> fps = 25
> stream_stype = 0
> stream_codec = 0
> stream_magic = 0
> x = 4200563
> magic = 0x4384dc ""
> codec = 0x0
> name = 0x0
> logfile = 0x4384dd "sync.log"
> str = 0x0
> end = 0x0
> (gdb) disass $pc-32 $pc+32
> A syntax error in expression, near `$pc+32'.
>
> Many thanks for any help,
>
> Michael
