Bug 106620 - Xwayland crashed when I try return to desktop while playing game MAD MAX
Summary: Xwayland crashed when I try return to desktop while playing game MAD MAX
Alias: None
Product: Wayland
Classification: Unclassified
Component: XWayland (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Wayland bug list
QA Contact: Xorg Project Team
Depends on:
Reported: 2018-05-22 19:31 UTC by mikhail.v.gavrilov
Modified: 2018-09-27 10:39 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Xwayland backtrace (17.43 KB, text/plain)
2018-05-22 19:31 UTC, mikhail.v.gavrilov
Xwayland backtrace (3.00 KB, text/plain)
2018-06-12 19:44 UTC, Roman Gilg

Description mikhail.v.gavrilov 2018-05-22 19:31:21 UTC
Created attachment 139684 [details]
Xwayland backtrace

Xwayland crashed when I tried return to desktop while playing game MAD MAX (pressed Alt + Tab)
This happens one times, and I unable it reproduce again.
Comment 1 Olivier Fourdan 2018-05-22 19:54:03 UTC
Crash is in Xwayland present code.
Comment 2 Roman Gilg 2018-05-23 09:15:20 UTC
It maybe only happened once because it seems to happen when a sync-event is still pending from the Wayland server, what is a very small part of a full refresh cycle.

It's weird that the crash happened after the sync event triggered present_wnmd_event_notify very late in present_send_complete_notify's call to present_window_priv. I would have assumed such a crash could only happen earlier. Does this mean the private window struct is suddenly gone?
Comment 3 Roman Gilg 2018-06-12 19:44:21 UTC
Created attachment 140141 [details]
Xwayland backtrace

It seems exactly this crash just happened to me as well when trying to launch Steam.

The "Updating Steam Information.." dialog appeared and afterwards my session froze.
Comment 4 Roman Gilg 2018-09-27 10:39:21 UTC
Should be fixed with ce271535adb697.

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