BUG when USB devices disconnected ?

[Johann D. <jo...@Do...>]

Hi,

When I turn off my I-Force wheel while a process having opened its
/dev/input/eventX entry is still running, strange things happen. I made
trials with evtest and fftest. Both crash. They either crash immediately,
on exit or when I press a key on my keyboard. Other strange behaviours are
mouse clicks being uneffective, the wm unwilling to change focus (I use
sloppy focus). The pointer of the mouse goes on moving, however.
All this happens with a patched 2.4.17 kernel (with my input-only
patch). I will try to see what happens with the latest CVS version as soon
as I can get it working.

Anyway, I think there should be a test on evdev->exist in every entry
function (evdev_read, ioctl, write, release, flush ...). Adding these
tests did not solve the problem, though.

Can someone try to reproduce the bug with another USB device ?
(Advice: sync your disks before! The crash is actually a complete freeze)

-- 
Johann Deneux