Date: Mon, 7 Jul 2014 12:35:16 -0700 From: Joseph Olatt <joji@eskimo.com> To: Tijl Coosemans <tijl@FreeBSD.org> Cc: freebsd-questions@freebsd.org Subject: Re: firefox-30.0_1,1 crash youtube HTML5 videos Message-ID: <20140707193516.GA3643@eskimo.com> In-Reply-To: <20140707200326.643890d9@kalimero.tijl.coosemans.org> References: <20140707090450.GA17767@eskimo.com> <20140707114323.11a8251b@kalimero.tijl.coosemans.org> <20140707155742.GA25148@eskimo.com> <20140707200326.643890d9@kalimero.tijl.coosemans.org>
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On Mon, Jul 07, 2014 at 08:03:26PM +0200, Tijl Coosemans wrote: > On Mon, 7 Jul 2014 08:57:42 -0700 Joseph Olatt wrote: > > On Mon, Jul 07, 2014 at 11:43:23AM +0200, Tijl Coosemans wrote: > > > On Mon, 7 Jul 2014 02:04:51 -0700 Joseph Olatt wrote: > > > > Was wondering if anybody else was encountering Firefox crashing when > > > > attempting to play HTML5 youtube videos? > > > > > > > > The system is: > > > > > > > > FreeBSD peace 10.0-STABLE FreeBSD 10.0-STABLE #1 r266948: Mon Jun 2 > > > > 14:12:35 CDT 2014 root@peace:/usr/obj/usr/src/sys/PEACE i386 > > > > > > > > and Firefox is being built from source. Compiling with debug symbols and > > > > getting a backtrace on the core provides: > > > > > > > > > > > > (gdb) GNU gdb 6.1.1 [FreeBSD] > > > > <snip> > > > > [New Thread 28501080 (LWP 100126/firefox)] > > > > (gdb) bt > > > > #0 0x39144f52 in ff_ac3dsp_init_x86 () from /usr/local/lib/gstreamer-1.0/libgstlibav.so > > > > #1 0x00000000 in ?? () > > > > (gdb) > > > > > > Can you build gstreamer1-libav with debug symbols and regenerate this > > > backtrace? Also, what cpu is this running on? Did you set CPUTYPE or > > > CFLAGS in /etc/make.conf? > > > > Tijl, > > > > Thanks for responding. > > > > Strange things happen... I did the following: > > > > (1) I re-compiled gstreamer1-libav *with* debug symbols. > > (2) Started Firefox, went to youtube and played a HTML5 video. It played > > fine. Firefox did not crash. > > (3) I re-compiled gstreamer1-libav *without* debug symbols. > > (4) I repeated step #2. Firefox crashed at the same location as before. > > (5) Repeated step #3. No crash. Strange... > > > > The processor type is: > > > > CPU: Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz (1828.80-MHz 686-class CPU) > > Origin = "GenuineIntel" Id = 0x6f6 Family = 0x6 Model = 0xf Stepping = 6 > > > > Full dmesg output is at: > > > > http://www.eskimo.com/~joji/dmesg.txt > > > > > > Looks like there is a bug in gstreamer1-libav. Just don't know how to > > find it if it doesn't show up when debug symbols included.. > > > > Suggestions? > > Try to build gstreamer1-libav with: > > make WITH_DEBUG=yes DEBUG_FLAGS="-O2 -ggdb" install Hope the below helps: (gdb) bt #0 .text () at libavcodec/x86/h264_deblock.asm:504 #1 0x3a505b45 in loop_filter (h=0x10, start_x=3, end_x=989936568) at libavcodec/h264.c:3601 #2 0x3a50423f in decode_slice (avctx=0x3a191200, arg=<value optimized out>) at libavcodec/h264.c:3772 #3 0x3a503d8f in execute_decode_slices (h=0x3b011000) at libavcodec/h264.c:3840 #4 0x3a4ee5fa in decode_nal_units (h=<value optimized out>, buf=0x3 <Address 0x3 out of bounds>, buf_size=<value optimized out>) at libavcodec/h264.c:4129 #5 0x3a4ff31e in decode_frame (avctx=<value optimized out>, avpkt=<value optimized out>) at libavcodec/h264.c:4219 #6 0x3a61c8e5 in frame_worker_thread (arg=0x3a13f000) at libavcodec/pthread.c:384 #7 0x2817366c in pthread_create () from /lib/libthr.so.3 #8 0x00000000 in ?? () Current language: auto; currently asm (gdb) Full output of backtrace at: http://www.eskimo.com/~joji/firefox-gdb-2.txt
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