[Bug 76892] xserver freezes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76892

--- Comment #23 from Chris Wilson <chris at chris-wilson.co.uk> ---
Odd. What I would say that is the blockhandler, which implies that some client
is sending lots of non-rendering requests. It doesn't suggest that the
DDX/Xserver is trapped in a loop though, just doing busy-work.

You may find that "sudo perf top" gives a clue, but really you want a log of
the requests made by each client. I guess one thing to check is whether this is
a recent regression in the ddx (i.e. try 2.99.910 etc). The other approach as
you have a highly reproducible scenario is that grabbing a full-debug log is
promising (compile the ddx with ./configure --enable-debug=full)

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