http://bugzilla.kernel.org/show_bug.cgi?id=9147





--- Comment #190 from Daniele C. <legolas...@users.sourceforge.net>  2010-01-14 
16:13:28 ---
@mnowak: that was also my first understanding when reading the SIGIO article.

The only possible scenario otherwise could be that there *is* a SIGIO glitch in
current Xorg/kernel, and that boxes with i8042 controllers (or similar) have 2
or more peripherals which end up locking the same single hardware (perhaps the
i8042 controller itself, which someway "emulate" locking of 2 or more
peripherals in an inconsistent way), thus leading to locking glitches. But this
would be very strange since no other hardware combinations are showing the
"bug" and since it is happening from so much time (kernel 2.6.9 being the first
verified).

Also there has been different research on this bug and it seemed like having
identified the source elsewhere.

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