When some window is opened by some grabbed key, grabbing all keys and they destroyed (like the window ratpoison opened uppon C-t :, or the window icewm shows when doing Alt-Tab), the xserver is caught in an endless loop within PlayReleasedEvents in dix/events.c.
(For every even in the queue, qe->device->public.processInputProc is called,
which is EnqueueEvent, which just puts it at the end of the same queue, where
the loop continues).
A sample backtrace in this case is:
0x080996bb in ComputeFreezes () at ../../dix/events.c:1161
1161 ../../dix/events.c: No such file or directory.
in ../../dix/events.c
(gdb) bt
#0 0x080996bb in ComputeFreezes () at ../../dix/events.c:1161
#1 0x08099d62 in DeactivateKeyboardGrab (keybd=0x8233930) at ../../dix/events.c:1431
#2 0x0809456c in ProcUngrabKeyboard (client=0x83a4750) at ../../dix/events.c:4296
#3 0x0814d60e in XaceCatchDispatchProc (client=0x83a4750) at ../../Xext/xace.c:281
#4 0x0808d1ff in Dispatch () at ../../dix/dispatch.c:502
#5 0x0807474b in main (argc=4, argv=0xbfcf0c64, envp=Cannot access memory at address 0x9
) at ../../dix/main.c:452
When some window is opened by some grabbed key, grabbing all keys and they destroyed (like the window ratpoison opened uppon C-t :, or the window icewm shows when doing Alt-Tab), the xserver is caught in an endless loop within PlayReleasedEvents in dix/events.c. >public. processInputPro c is called,
(For every even in the queue, qe->device-
which is EnqueueEvent, which just puts it at the end of the same queue, where
the loop continues).
A sample backtrace in this case is: events. c:1161 events. c:1161 ardGrab (keybd=0x8233930) at ../../dix/ events. c:1431 events. c:4296 chProc (client=0x83a4750) at ../../Xext/ xace.c: 281 dispatch. c:502 main.c: 452
0x080996bb in ComputeFreezes () at ../../dix/
1161 ../../dix/events.c: No such file or directory.
in ../../dix/events.c
(gdb) bt
#0 0x080996bb in ComputeFreezes () at ../../dix/
#1 0x08099d62 in DeactivateKeybo
#2 0x0809456c in ProcUngrabKeyboard (client=0x83a4750) at ../../dix/
#3 0x0814d60e in XaceCatchDispat
#4 0x0808d1ff in Dispatch () at ../../dix/
#5 0x0807474b in main (argc=4, argv=0xbfcf0c64, envp=Cannot access memory at address 0x9
) at ../../dix/
(Note that PlayReleaseEvents is inlined within ComputeFreeze). bugs.debian. org/452981 http:// bugs.debian. org/454205 http:// bugs.debian. org/454215
Debian bugs reports: http://