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Date:      Wed, 7 May 2014 15:01:45 GMT
From:      Dmitry Afanasiev <KOT@MATPOCKuH.Ru>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   ports/189421: multimedia/gstreamer1-libav: firefox crashes in gstreamer-1.0/libgstlibav.so on i386
Message-ID:  <201405071501.s47F1jmg076105@cgiserv.freebsd.org>
Resent-Message-ID: <201405071510.s47FA0WP065062@freefall.freebsd.org>

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>Number:         189421
>Category:       ports
>Synopsis:       multimedia/gstreamer1-libav: firefox crashes in gstreamer-1.0/libgstlibav.so on i386
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed May 07 15:10:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Dmitry Afanasiev
>Release:        FreeBSD 10-STABLE
>Organization:
>Environment:
FreeBSD sunbuild 10.0-STABLE FreeBSD 10.0-STABLE #0: Thu May  1 18:12:03 MSK 2014     root@sunbuild:/usr/obj/usr/src/sys/sunbuild  i386
>Description:
On FreeBSD/i386 firefox crashes when displaying html5 video in gstreamer-1.0/libgstlibav.so:

I rebuild gstreamer-1.0/libgstlibav.so with debug info and ran firefox from gdb:
[New Thread 35b6be80 (LWP 101742/firefox)]

Program received signal SIGBUS, Bus error.
[Switching to Thread 35b6be80 (LWP 101742/firefox)]
.text () at libavcodec/x86/h264_deblock.asm:504
504     DEBLOCK_LUMA v, 16
Current language:  auto; currently asm
(gdb) bt
#0  .text () at libavcodec/x86/h264_deblock.asm:504
#1  0x39205025 in loop_filter (h=0x10, start_x=3, end_x=958334224)
    at libavcodec/h264.c:3601
#2  0x39203a5f in decode_slice (avctx=0x36cad980, arg=<value optimized out>)
    at libavcodec/h264.c:3772
#3  0x392035af in execute_decode_slices (h=0x39d39000)
    at libavcodec/h264.c:3840
#4  0x391efb24 in decode_nal_units (h=<value optimized out>, 
    buf=0x3 <Error reading address 0x3: Bad address>, 
    buf_size=<value optimized out>) at libavcodec/h264.c:4129
#5  0x391fec2e in decode_frame (avctx=<value optimized out>, 
    avpkt=<value optimized out>) at libavcodec/h264.c:4219
#6  0x3931fd05 in frame_worker_thread (arg=0x35a2f000)
    at libavcodec/pthread.c:384
#7  0x281795fc in pthread_create () from /lib/libthr.so.3
#8  0x00000000 in ?? ()

firefox version: 29.0,1
gstreamer1-libav version: 1.2.4
Problem does not exists on amd64.
>How-To-Repeat:
Try to play any video file (f.e. from youtube) in firefox on freebsd10/i386

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:



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