Open Bug 1645802 Opened 11 months ago Updated 11 months ago

Crash in [@ msmpeg2vdec.dll | EtwEventWrite] while watching streams on


(Core :: Audio/Video: Playback, defect)

78 Branch
Windows 10




(Reporter: lwqlop0d.dfx, Unassigned)


Crash Data

The problem: A tab crash occurs while watching streams on seemingly at random. Sometimes it happens once or twice a day, other times it doesn't happen at all and I watch streams for most of the day. After reloading the page/tab, everything is working like before the crash.

Things I have tried so far:

Updating Windows 10 Education to be up to date
sfc /scannow
DISM.exe /Online /Cleanup-image /Restorehealth

The crash report itself: CRASH REPORT - ae0bf2c7-1d2c-47e9-8cce-6addf0200615

This bug is for crash report bp-ae0bf2c7-1d2c-47e9-8cce-6addf0200615.

Top 3 frames of crashing thread:

0 msmpeg2vdec.dll msmpeg2vdec.dll@0x137132 
1 msmpeg2vdec.dll msmpeg2vdec.dll@0x13e418 
2 ntdll.dll EtwEventWrite 
Severity: -- → S2
Priority: -- → P3

Moving to Media Playback. I see 2 crash reports for all of our install base, so moving to S4. I'm not sure this is actionable on our side as it looks like a bug in Microsoft's decoder.

Severity: S2 → S4
Component: General → Audio/Video: Playback
Ever confirmed: true
Product: Firefox → Core

The product::component has been changed since the backlog priority was decided, so we're resetting it.
For more information, please visit auto_nag documentation.

Priority: P3 → --
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