Bug 106129 - Weston segfaults on startup if wl_event_loop_add_timer fails
Summary: Weston segfaults on startup if wl_event_loop_add_timer fails
Status: RESOLVED MOVED
Alias: None
Product: Wayland
Classification: Unclassified
Component: weston (show other bugs)
Version: unspecified
Hardware: All Linux (All)
: medium minor
Assignee: Wayland bug list
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Reported: 2018-04-18 21:07 UTC by hobbitalastair
Modified: 2018-06-08 23:56 UTC (History)
1 user (show)

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Description hobbitalastair 2018-04-18 21:07:30 UTC 
Running weston with the headless backend will segfault if wl_event_loop_add_timer fails (eg if timerfd is not enabled in the kernel) since https://github.com/wayland-project/weston/blob/42c0e14808bfd39e1a2eea34f43f0b5fe20fbb16/libweston/compositor-headless.c#L160 never checks if the returned result is NULL.
Comment 1 Pekka Paalanen 2018-04-19 09:01:29 UTC 
Hi, sure, we could turn that into an explicit abort().

Adding a fallback path would not be feasible or desirable.
Comment 2 hobbitalastair 2018-04-20 07:04:40 UTC 
Yes, I was just thinking that it might be nicer if there was some kind of error message to avoid needing to break out gdb... something like at https://github.com/wayland-project/weston/blob/42c0e14808bfd39e1a2eea34f43f0b5fe20fbb16/compositor/main.c#L1928?
Comment 3 GitLab Migration User 2018-06-08 23:56:00 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/wayland/weston/issues/102.

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