Bug 510636

Summary:	Gwenview consistently SEGVs when it attempts to play specific WebMs
Product:	[Applications] gwenview	Reporter:	Roke Julian Lockhart Beedell <4wy78uwh>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	REPORTED ---
Severity:	crash	Keywords:	drkonqi
Priority:	NOR
Version First Reported In:	25.08.2
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
See Also:	https://bugzilla.redhat.com/show_bug.cgi?id=2383629
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:	https://crash-reports.kde.org/organizations/kde/issues/272400/events/007e9776816c4058a1b1298f9d4e63a8/
Attachments:	New crash information added by DrKonqi A Consistently Reproductive File

Description Roke Julian Lockhart Beedell 2025-10-15 10:40:45 UTC

Application: gwenview (25.08.2)

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.2
Frameworks Version: 6.19.0
Operating System: Linux 6.16.11-200.fc42.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 42 (KDE Plasma Desktop Edition)"
DrKonqi: 6.4.5 [CoredumpBackend]

-- Information about the crash:
Rarely, when I attempt to play a video in Gewnview, it crashes. This report is the second time this occurred to me, but should be the first report, because Dr. Konqi crashed when it attempted to report the previous one, per https://bugzilla.redhat.com/show_bug.cgi?id=2383629#c16.

The crash can be reproduced sometimes.

-- Backtrace (Reduced):
#4  __memcpy_avx512_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:354
#5  0x00007f680973ae06 in tc_draw_user_indices_single (_pipe=0x56281aaa7d70, info=0x7f673d7f9570, drawid_offset=<optimized out>, indirect=<optimized out>, draws=0x7f673d7f9564, num_draws=<optimized out>) at ../src/gallium/auxiliary/util/u_threaded_context.c:3938
#6  0x00007f6809737799 in tc_draw_vbo (_pipe=0x56281aaa7d70, info=<optimized out>, drawid_offset=<optimized out>, indirect=<optimized out>, draws=<optimized out>, num_draws=<optimized out>) at ../src/gallium/auxiliary/util/u_threaded_context.c:4220
#7  0x00007f680925d162 in _mesa_validated_drawrangeelements (ctx=ctx@entry=0x56281aadc970, index_bo=<optimized out>, mode=mode@entry=5, index_bounds_valid=index_bounds_valid@entry=false, start=start@entry=0, end=end@entry=4294967295, count=30, type=5123, indices=0x0, basevertex=0, numInstances=1, baseInstance=0) at ../src/mesa/main/draw.c:1705
#8  0x00007f680925e5a6 in _mesa_DrawElementsBaseVertex (mode=5, count=30, type=5123, indices=0x0, basevertex=0) at ../src/mesa/main/draw.c:1848
#9  0x00007f68092d128f in _mesa_unmarshal_DrawElementsPacked (ctx=<optimized out>, cmd=<optimized out>) at ../src/mesa/main/glthread_draw.c:645
#10 0x00007f680907ae01 in glthread_unmarshal_batch (job=job@entry=0x56281aae0b18, gdata=gdata@entry=0x0, thread_index=thread_index@entry=0) at ../src/mesa/main/glthread.c:141
[...]
#12 0x00007f68095505cc in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:43
#13 0x00007f682f27ff54 in start_thread (arg=<optimized out>) at pthread_create.c:448
#14 0x00007f682f30332c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78


Reported using DrKonqi

Comment 1 Roke Julian Lockhart Beedell 2025-10-15 10:40:46 UTC

Created attachment 185800 [details]
New crash information added by DrKonqi

DrKonqi auto-attaching complete backtrace.

Comment 2 Roke Julian Lockhart Beedell 2025-10-15 10:42:50 UTC

Created attachment 185801 [details]
A Consistently Reproductive File

This file always causes it.

Comment 3 Roke Julian Lockhart Beedell 2025-10-15 11:38:55 UTC

(In reply to Roke Julian Lockhart Beedell from comment #0)

> Rarely, when I attempt to play a video in Gewnview, it crashes. This report
> is the second time this occurred to me

In retrospect, this could have been caused by https://github.com/rpmfusion-infra/fedy/issues/154#issuecomment-3405831520:~:text=the%20fedora%20package%20is%20missing%20h264/h265%20codecs%20and%20better%20acceleration%20kernels%20for%20vp9/av1, which I installed a few minutes before recording that video.