Bug 259032

Summary: [GStreamer] On reddit.com, gst video info assertion failed
Product: WebKit Reporter: Kdwk <kdwkleung>
Component: MediaAssignee: Nobody <webkit-unassigned>
Status: RESOLVED WORKSFORME    
Severity: Normal CC: bugs-noreply, clopez, mcatanzaro, philn, vjaquez
Priority: P2    
Version: WebKit Nightly Build   
Hardware: PC   
OS: Linux   
Attachments:
Description Flags
gdb (bt full) output
none
gdb (t a a bt) output
none
gdb (bt full; c) output
none
gdb (t a a bt; c) output none

Kdwk
Reported 2023-07-09 05:54:32 PDT
Created attachment 466990 [details] gdb (bt full) output See attached backtraces.
Attachments
gdb (bt full) output (3.24 KB, text/plain)
2023-07-09 05:54 PDT, Kdwk 		no flags
Details
gdb (t a a bt) output (3.97 KB, text/plain)
2023-07-09 05:54 PDT, Kdwk 		no flags
Details
gdb (bt full; c) output (10.28 KB, text/plain)
2023-07-10 06:16 PDT, Kdwk 		no flags
Details
gdb (t a a bt; c) output (82.10 KB, text/plain)
2023-07-10 06:18 PDT, Kdwk 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Kdwk
Comment 1 2023-07-09 05:54:49 PDT
Created attachment 466991 [details] gdb (t a a bt) output
Michael Catanzaro
Comment 2 2023-07-09 07:26:43 PDT
You forgot to press 'c' for 'continue' again
Víctor M. Jáquez L.
Comment 3 2023-07-09 13:21:41 PDT
Can you point out what video reproduces that crash? what page on reddit, exactly?
Víctor M. Jáquez L.
Comment 4 2023-07-09 13:25:29 PDT
would be nice to have all the threads dumped
Kdwk
Comment 5 2023-07-10 00:52:29 PDT
(In reply to Michael Catanzaro from comment #2) > You forgot to press 'c' for 'continue' again Ah dang it
Carlos Alberto Lopez Perez
Comment 6 2023-07-10 05:32:23 PDT
tip: use the following command to get the BT with threads gdb --batch -ex "thread apply all bt full" /full/path/to/WebKitWebProcess core &> backtrace.txt
Kdwk
Comment 7 2023-07-10 05:59:18 PDT
Unfortunately, there was another WebProcess crash and I can't access this crash anymore via flatpak-coredumpctl
Kdwk
Comment 8 2023-07-10 06:16:36 PDT
Created attachment 467002 [details] gdb (bt full; c) output Hit it again.
Kdwk
Comment 9 2023-07-10 06:18:24 PDT
Created attachment 467003 [details] gdb (t a a bt; c) output
Philippe Normand
Comment 10 2023-07-10 13:52:57 PDT
(GST_VIDEO_INFO_WIDTH (&input_state->info) == GST_VIDEO_INFO_WIDTH (&base->input_state->info) && GST_VIDEO_INFO_HEIGHT (&input_state->info) == GST_VIDEO_INFO_HEIGHT (&input_state->in"
Philippe Normand
Comment 11 2023-07-10 13:54:14 PDT
I think for this kind of bug, without a clear reproducer, I'm not sure there's much we can do.
Kdwk
Comment 12 2023-07-11 04:06:49 PDT
I think the reproducer is simply "go to reddit.com and scroll until there's a video". This happens whenever there's a video on screen
Kdwk
Comment 13 2023-07-11 04:10:15 PDT
For e.g. this can be triggered by going to https://www.reddit.com/r/BeAmazed and playing a couple of videos
Philippe Normand
Comment 14 2023-07-22 11:49:07 PDT
Is this happening in Canary too? I really can't reproduce this here, sorry.
Philippe Normand
Comment 15 2023-07-25 12:05:37 PDT
No reply, I guess this can be re-opened if/when feedback re-appears.
Víctor M. Jáquez L.
Comment 16 2023-08-24 04:40:40 PDT
Still, I have cooked a patch for this. https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5237
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