I've failed to reproduce this with Nightly and Debian unstable; I get the warnings about `/sys/devices/system/cpu` but nothing about `/proc/cpuinfo`. It's possible that that line is related to the error (i.e., whatever is trying to open `/proc/cpuinfo` for the second time causes media decoding to fail when it returns an error), but it could also be coincidence.
The browser tab locking up is unexpected, though — even if the media plugin process crashes or hangs, the media subsystem is pretty good about doing everything asynchronously. If try playing something and then kill the `gmplugin` process, it stops playing and I get an in- content error that “something went wrong with playback”, and then it won't play anything until I reload the tab; that's all more or less what I'd expect. If I `SIGSTOP` the process, a few seconds later the audio stops but the time in the UI keeps advancing (and if I `SIGCONT` it, it will resume playing where it left off, which is no longer where the UI says it's playing from; that's an interesting bug but it might be Spotify's and not ours). But, no sign of the content process locking up or crashing. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1983010 Title: Sandbox: attempt to open unexpected file /sys/devices/system/cpu/cpu0/cache/index2/size Status in Mozilla Firefox: New Status in firefox package in Ubuntu: New Bug description: I use Firefox Beta and launch it from the terminal. While watching Netflix on Firefox, I get the following messages on my terminal: Sandbox: attempt to open unexpected file /sys/devices/system/cpu/cpu0/cache/index2/size Sandbox: attempt to open unexpected file /sys/devices/system/cpu/cpu0/cache/index3/size Sandbox: attempt to open unexpected file /sys/devices/system/cpu/present Sandbox: attempt to open unexpected file /sys/devices/system/cpu Sandbox: Unexpected EOF, op 0 flags 00 path /proc/cpuinfo ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: firefox (not installed) ProcVersionSignature: Ubuntu 5.15.0-41.44-generic 5.15.39 Uname: Linux 5.15.0-41-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: KDE Date: Thu Jul 28 15:01:35 2022 InstallationDate: Installed on 2022-06-21 (36 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1983010/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
