Hi all, For the past year+ we have had a steady trickle of virt-manager X11 threading crashes. This is the f31 bug I've duped all the other ones too, but there were a handful that were auto closed by Fedora end-of-life bug cleanup: https://bugzilla.redhat.com/show_bug.cgi?id=1756065 The message that goes along with this is: [xcb] Unknown sequence number while processing queue [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called [xcb] Aborting, sorry about that. remote-viewer: xcb_io.c:263: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed. Aborted (core dumped) That may not apply to all the poll_for_error() bugs but it's most of the ones I have dug into. I figured there was some threading issue in virt-manager and I was mostly ignoring the bugs until I found time to try and diagnose. I'm not really finding anything in virt-manager though, and some similar issues make me think maybe this is spice-gtk or something lower. This user can reproduce the same error with remote-viewer + spice + X11 ssh forwarding: https://bugzilla.redhat.com/show_bug.cgi?id=1758384 This user can reproduce the virt-manager crash multiple times a day, and it's always when interacting with a spice-gtk console: https://bugzilla.redhat.com/show_bug.cgi?id=1792576 Anyone have any ideas how to debug this further? What spice-gtk debugging info would be helpful? The reporter in the last bug can reproduce regularly and is responsive, so feel free to just jump in there if you would like to help. Thanks, Cole _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel