Bug#596064: xserver-xorg: /usr/bin/X hangs (CPU 100%) on nVidia Corporation GT218 [GeForce 310]

[Timo Juhani Lindfors <timo.lindfors@iki.fi>]

Hector Oron <zumbi@debian.org> writes:
>   X server makes CPU go at 100%. It is usually reproducible when I
>   open iceweasel and look into some webpage which triggers gnash, it
>   also happens on chromium-browser, but not so often. I blame
>   nouveau driver, but you might know better. Some info I am able to
>   provide is:

Thanks for your report (I'm not a maintainer, just happened to be
following the bug reports).  After you have started X, can you login
from some other computer with ssh and run "sudo strace -p $(pidof X)
-o X.strace -s4096 -f -tt"?  Then do something to trigger the bug but
note that you should not enter any passwords or sensitive
information. When X crashes, use "tail -n 50000 X.strace | gzip -9 >
X.strace.gz" and send X.strace.gz to this bug report so that we see
the last 50000 system calls made by the server.

My very wild guess is that it is stuck in that ioctl and input events
keep accumulating until miEventQueue fills up.