Cut from Bug Description.

** Attachment added: "stacktrace.txt"
   
https://bugs.launchpad.net/ubuntu/+source/gstreamer-vaapi/+bug/1395070/+attachment/4273341/+files/stacktrace.txt

** Description changed:

- when loading pages with animated gifs wtih gstreamer-vaapi packages
- installed, firefox crashes with the following stacktrace:
+ when loading pages with animated gifs wtih gstreamer-vaapi packages 
installed, firefox crashes with the following stacktrace:
+ 
https://bugs.launchpad.net/ubuntu/+source/gstreamer-vaapi/+bug/1395070/+attachment/4273341/+files/stacktrace.txt
  
- Program received signal SIGSEGV, Segmentation fault.
- [Switching to Thread 0x7f3411cda700 (LWP 13488)]
- __memcpy_sse2_unaligned ()
-     at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:79
- 79    ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S: No such file or 
directory.
- (gdb) bt
- #0  __memcpy_sse2_unaligned ()
-     at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:79
- #1  0x00007f3426f6dac7 in _XRead () from /usr/lib/x86_64-linux-gnu/libX11.so.6
- #2  0x00007f33d7d94672 in ?? () from /usr/lib/vdpau/libvdpau_nvidia.so.1
- #3  0x00007f33d7d1cad1 in ?? () from /usr/lib/vdpau/libvdpau_nvidia.so.1
- #4  0x00007f33d7d1cce2 in ?? () from /usr/lib/vdpau/libvdpau_nvidia.so.1
- #5  0x00007f33d7d4821a in ?? () from /usr/lib/vdpau/libvdpau_nvidia.so.1
- #6  0x00007f33d7d8a9a4 in ?? () from /usr/lib/vdpau/libvdpau_nvidia.so.1
- #7  0x00007f33d7d375ce in ?? () from /usr/lib/vdpau/libvdpau_nvidia.so.1
- #8  0x00007f33d7d25620 in ?? () from /usr/lib/vdpau/libvdpau_nvidia.so.1
- #9  0x00007f33d82f36d0 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so
- #10 0x00007f33dbc168c5 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvaapi-1.4.so.0
- #11 0x00007f33dbc16a19 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvaapi-1.4.so.0
- #12 0x00007f33dbc2d592 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvaapi-1.4.so.0
- #13 0x00007f33dbc2d4cf in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvaapi-1.4.so.0
- #14 0x00007f33dbc17db4 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvaapi-1.4.so.0
- #15 0x00007f33dbc2d4cf in ?? ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstvaapi-1.4.so.0
- #16 0x00007f33dccd837e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
- #17 0x00007f33dccd8430 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
- #18 0x00007f33e9855404 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
- #19 0x00007f33e985d378 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
- #20 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #21 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #22 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #23 0x00007f33e9ab9ce6 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #24 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #25 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #26 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- ---Type <return> to continue, or q <return> to quit---
- #27 0x00007f33e9a9c9fc in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #28 0x00007f33dd57e223 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
- #29 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #30 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #31 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #32 0x00007f33e9ab9ce6 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #33 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #34 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #35 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #36 0x00007f33e9a9c9fc in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #37 0x00007f33de1c6d56 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi_parse.so
- #38 0x00007f33e9f5452e in ?? ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #39 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #40 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #41 0x00007f33e00caf13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
- #42 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #43 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #44 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #45 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #46 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #47 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #48 0x00007f33df4707e2 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
- #49 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- ---Type <return> to continue, or q <return> to quit---
- #50 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #51 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #52 0x00007f33e00df12f in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
- #53 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #54 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #55 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #56 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #57 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #58 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #59 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #60 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #61 0x00007f33e9f5d6cc in gst_pad_push_event ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #62 0x00007f33e9aae4bf in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #63 0x00007f33e9aaead0 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #64 0x00007f33e9aacab1 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #65 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #66 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #67 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #68 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #69 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #70 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #71 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #72 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- ---Type <return> to continue, or q <return> to quit---
- #73 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #74 0x00007f33e00de994 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
- #75 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #76 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #77 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #78 0x00007f33df4625e6 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
- #79 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #80 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #81 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #82 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #83 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #84 0x00007f33e9f5d6cc in gst_pad_push_event ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #85 0x00007f33e9a98277 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #86 0x00007f33de1c6b3c in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi_parse.so
- #87 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #88 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #89 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #90 0x00007f33e9aba2ea in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #91 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #92 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #93 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #94 0x00007f33e9a98277 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #95 0x00007f33dd57fa0c in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
- ---Type <return> to continue, or q <return> to quit---
- #96 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #97 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #98 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #99 0x00007f33e9aba2ea in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #100 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #101 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #102 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #103 0x00007f33e985a297 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
- #104 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #105 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #106 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #107 0x00007f33e9f5da13 in ?? ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #108 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #109 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #110 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #111 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #112 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #113 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #114 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #115 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #116 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #117 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #118 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- ---Type <return> to continue, or q <return> to quit---
- #119 0x00007f33e00c21e3 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
- #120 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #121 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #122 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #123 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #124 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #125 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #126 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #127 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #128 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #129 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #130 0x00007f33e9f5a8ae in gst_pad_forward ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #131 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #132 0x00007f33e09e630a in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
- #133 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #134 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #135 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #136 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #137 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #138 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #139 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #140 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #141 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- ---Type <return> to continue, or q <return> to quit---
- #142 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #143 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #144 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #145 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #146 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #147 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #148 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #149 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #150 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #151 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #152 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #153 0x00007f33e9f5d6cc in gst_pad_push_event ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #154 0x00007f33e9aba2ea in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #155 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #156 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #157 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #158 0x00007f33e9aba2ea in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #159 0x00007f33d73c4ea1 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoscale.so
- #160 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #161 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #162 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #163 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #164 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- ---Type <return> to continue, or q <return> to quit---
- #165 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #166 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #167 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #168 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #169 0x00007f33e9f5da13 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #170 0x00007f33e9f5a8ae in gst_pad_forward ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #171 0x00007f33e9f5aa03 in gst_pad_event_default ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #172 0x00007f33e9f5452e in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #173 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #174 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #175 0x00007f33e9aba2ea in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #176 0x00007f33e9f5452e in ?? ()
- ---Type <return> to continue, or q <return> to quit---
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #177 0x00007f33e9f54d96 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #178 0x00007f33e9f5d6cc in gst_pad_push_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #179 0x00007f33e9aa5457 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
- #180 0x00007f33e9f3fb29 in gst_element_send_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #181 0x00007f33e9f22f76 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #182 0x00007f33e9f3fb29 in gst_element_send_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #183 0x00007f33e9f22f76 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #184 0x00007f33e9f3fb29 in gst_element_send_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #185 0x00007f33e09d1222 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
- #186 0x00007f33e09d145f in ?? ()
-    from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
- #187 0x00007f33e9f3fb29 in gst_element_send_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- ---Type <return> to continue, or q <return> to quit---
- #188 0x00007f33e9f22f76 in ?? ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #189 0x00007f33e9f3fb29 in gst_element_send_event ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #190 0x00007f33e9f8a334 in gst_element_seek_simple ()
-    from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
- #191 0x00007f342be17424 in ?? () from /usr/lib/firefox/libxul.so
- #192 0x00007f342bdd1d72 in ?? () from /usr/lib/firefox/libxul.so
- #193 0x00007f342bdcc109 in ?? () from /usr/lib/firefox/libxul.so
- #194 0x00007f342bddea67 in ?? () from /usr/lib/firefox/libxul.so
- #195 0x00007f342b119ab8 in ?? () from /usr/lib/firefox/libxul.so
- #196 0x00007f342b117636 in ?? () from /usr/lib/firefox/libxul.so
- #197 0x00007f342b0d4445 in ?? () from /usr/lib/firefox/libxul.so
- #198 0x00007f342b2c39d1 in ?? () from /usr/lib/firefox/libxul.so
- #199 0x00007f342b2b5837 in ?? () from /usr/lib/firefox/libxul.so
- #200 0x00007f342b118003 in ?? () from /usr/lib/firefox/libxul.so
- #201 0x00007f342ffe8898 in ?? () from /usr/lib/firefox/libnspr4.so
- #202 0x00007f34309940a5 in start_thread (arg=0x7f3411cda700)
-     at pthread_create.c:309
- #203 0x00007f34306c184d in clone ()
-     at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
+ An example URL that demonstrates this problem is = ?
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: gstreamer1.0-vaapi (not installed)
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  NonfreeKernelModules: nvidia wl
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Nov 21 08:41:48 2014
  InstallationDate: Installed on 2014-02-24 (269 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140218)
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: gstreamer-vaapi
  UpgradeStatus: Upgraded to utopic on 2014-08-17 (95 days ago)

** Description changed:

  when loading pages with animated gifs wtih gstreamer-vaapi packages 
installed, firefox crashes with the following stacktrace:
  
https://bugs.launchpad.net/ubuntu/+source/gstreamer-vaapi/+bug/1395070/+attachment/4273341/+files/stacktrace.txt
+ 
+ The Mozilla Crash Reporter IDs are available from:
+ https://launchpadlibrarian.net/191714886/SubmittedCrashIDs.txt
  
  An example URL that demonstrates this problem is = ?
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: gstreamer1.0-vaapi (not installed)
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  NonfreeKernelModules: nvidia wl
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Nov 21 08:41:48 2014
  InstallationDate: Installed on 2014-02-24 (269 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140218)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gstreamer-vaapi
  UpgradeStatus: Upgraded to utopic on 2014-08-17 (95 days ago)

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https://bugs.launchpad.net/bugs/1395070

Title:
  gstreamer-vaapi + nvidia driver causes firefox to crash on animated
  gifs / video tags

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