[DVDnav-discuss] Possible libdvdnav related crash

karaluh karaluh at karaluh.pl
Tue Jan 28 11:12:07 CET 2014

I was trying to play a DVD in two different apps and as soon as I 
pressed play both of them crashed. I reported the crash to one of the 
program's bug tracker and was redirected here.


libdvdnav part of the backtrace:

Thread 2 (Thread 0xaceffb40 (LWP 6877)): [KCrash Handler] #7 0xb77ab424 
in __kernel_vsyscall () #8 0xb5bfdaff in raise () from 
/lib/i386-linux-gnu/libc.so.6 #9 0xb5c01083 in abort () from 
/lib/i386-linux-gnu/libc.so.6 #10 0xb5bf6857 in ?? () from 
/lib/i386-linux-gnu/libc.so.6 #11 0xb5bf6907 in __assert_fail () from 
/lib/i386-linux-gnu/libc.so.6 #12 0xace74ca2 in process_command 
(vm=vm at entry=0xacd01530, link_values=...) at vm.c:1454 #13 0xace7500c in 
vm_start (vm=0xacd01530) at vm.c:327 #14 0xace6beee in 
dvdnav_get_next_cache_block (this=this at entry=0xacd031a0, 
buf=buf at entry=0xacefe6fc, event=event at entry=0xacefe784, 
len=len at entry=0xacefe788) at dvdnav.c:475 #15 0xace6c8fe in 
dvdnav_get_next_block (this=this at entry=0xacd031a0, 
buf=buf at entry=0xacefe7ec "\200\b$i!", event=event at entry=0xacefe784, 
len=len at entry=0xacefe788) at dvdnav.c:440 #16 0xad026645 in Open 
(p_this=0xacd00910) at dvdnav.c:264 #17 0xb1fa2010 in generic_start 
(func=0xad026170 <Open>, ap=0xaceff0c8 "\230/\376\261") at 
modules/modules.c:422 #18 0xb1fa2732 in vlc_module_load 
(p_this=p_this at entry=0xacd00910, 
psz_capability=psz_capability at entry=0xb1fe3663 "access_demux", 
psz_name=<optimized out>, psz_name at entry=0xacd00890 "dvd", 
b_strict=b_strict at entry=true, probe=probe at entry=0xb1fa2000 
<generic_start>) at modules/modules.c:347 #19 0xb1fa2c52 in module_need 
(obj=obj at entry=0xacd00910, cap=cap at entry=0xb1fe3663 "access_demux", 
name=0xacd00890 "dvd", strict=strict at entry=true) at 
modules/modules.c:437 #20 0xb1f51b4a in demux_New 
(p_obj=p_obj at entry=0x9ecfe88, 
p_parent_input=p_parent_input at entry=0x9ecfe88, psz_access=0xacd00628 
"dvd", psz_demux=0xb1febc6f "", psz_location=0xacd0062e "/dev/sr0", 
s=s at entry=0x0, out=out at entry=0xacd00478, b_quick=b_quick at entry=false) at 
input/demux.c:196 #21 0xb1f60251 in InputSourceInit 
(p_input=p_input at entry=0x9ecfe88, in=0x9ef2e1c, 
psz_mrl=psz_mrl at entry=0x9e5bce0 "dvd:///dev/sr0", 
psz_forced_demux=psz_forced_demux at entry=0x0, 
b_in_can_fail=b_in_can_fail at entry=false) at input/input.c:2402 #22 
0xb1f61386 in Init (p_input=p_input at entry=0x9ecfe88) at 
input/input.c:1258 #23 0xb1f6563c in Run (obj=0x9ecfe88) at 
input/input.c:550 #24 0xb5561d78 in start_thread () from 
/lib/i386-linux-gnu/libpthread.so.0 #25 0xb5cc101e in clone () from 

It might be VLC related, because both apps use it's libraries. I'll 
retest with mplayer today.
Best regards,

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