Hi Alexander and Hans, I recently did the following which generated a panic on a 9-CURRENT kernel compiled on the 26th:
1. Executed reboot 2. Removed keyboard. 3. Some time after `All buffers synced\nUptime: ...' was displayed, the keyboard was registered disconnected. 4. The interrupt was delivered to my twa(4) enabled card and the kernel panicked, like so: ugen2.2: <Mitsumi Electric> at usbus2 (disconnected) uhub8: at uhub2, port 1, addr 2 (disconnected) ugen2.3: <Mitsumi Electric> at usbus2 (disconnected) ukbd0: at uhub8, port 3, addr 3 (disconnected) uhid0: at uhub8, port 3, addr 3 (disconnected) panic: mtx_lock_spin() of destroyed mutex @ /usr/src/sys/dev/twa/tw_cl_intr.c:88 cpuid = 1 KDB: enter: panic [thread pid 12 tid 100025 ] Stopped at kdb_enter+0x3d: movq $0,0x40289c(%rip) db> I wish I could provide you with more details, but unfortunately I the USB bus isn't registering the fact that I'm reattaching the keyboard right now and the box won't reboot automatically :( (didn't set the right sysctl beforehand to panic automatically). I'll try and reproduce the issue again, but I was just wondering whether or not you guys had seen this problem before. Thanks, -Garrett _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"