[Xcb] [Bug 94108] hang waiting for a reply message (xcb_wait_for_reply)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94108

Uli Schlachter <psychon at znc.in> changed:

           What    |Removed                     |Added
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             Status|REOPENED                    |NEEDINFO

--- Comment #9 from Uli Schlachter <psychon at znc.in> ---
Let's try again: What are the backtraces of the other threads? Is any other
thread inside libxcb-code?

Also, does the application use libGL / libX11 from multiple threads? Is
XInitThreads() called at startup?

According to the only backtrace you provided, libX11 asks for a reply that we
don't have yet and some other thread "grabbed" the socket. Could you get a
debug build of libxcb and libX11 so that the backtraces provide more
information?

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