Crash on Linux x86_64 on dav1d_ipred_smooth_avx2
This is a second crash mentioned in #225 (closed) but this time on Linux x86_64. The latest crash report is described in the following link (with symbols):
https://crash-stats.mozilla.org/report/index/4bc2ce74-5c32-4eeb-8096-7b2080190111
Only one user has reported this crash so far. The user tried using a debug build but it did not crash there so the crash reproduces only on opt builds. In my system it does not crash for both opt and debug. Also, CI run does not report any problem.
We made the process crash under GDB (symbols not available) and we got the bt
and disassemble
output, can be found in the following link:
https://bug1515933.bmoattachments.org/attachment.cgi?id=9035950
and bt
output after adding external symbols in the local GDB session.
https://bug1515933.bmoattachments.org/attachment.cgi?id=9035964
We have tried building locally with nasm 2.13.01 and 2.13.02 but the local build does not crash for both versions.
The info above is extracted from Bug 151933:
https://bugzilla.mozilla.org/show_bug.cgi?id=1515933
General system information:
Name: Firefox
Version: 66.0a1
Build-ID: 20181221093752
Update-Kanal: nightly
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0
Betriebssystem: Linux 4.19.9-300.fc29.x86_64
Fenster mit mehreren Prozessen: 1/1 (aktiviert (Standard))
Web-Inhaltsprozesse: 10/8
Unternehmensrichtlinien: Inaktiv
Google-Schlüssel: Gefunden
Mozilla-Location-Service-Schlüssel: Gefunden
Abgesicherter Modus: false