[cairo-bugs] [Bug 98883] BadAccess errors in ShmAttach due to thread races with XNextRequest() usage in cairo-xlib-surface-shm.c

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98883

--- Comment #9 from Bill Spitzak <spitzak at gmail.com> ---
The XLockDisplay is needed so that an error in another thread does not get
reported as a failure of XShmAttach.

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