I'm running -CURRENT on a laptop which has a wireless switch. When I boot with it enabled and then switch it off, the following LOR gets logged:
lock order reversal: 1st 0xffffff000466d070 USB config SX lock (USB config SX lock) @ /usr/src/head/sys/dev/usb/usb_device.c:2671 2nd 0xffffff000466d090 USB suspend and resume SX lock (USB suspend and resume SX lock) @ /usr/src/head/sys/dev/usb/usb_device.c:2672 3rd 0xffffff0004501870 USB config SX lock (USB config SX lock) @ /usr/src/head/sys/dev/usb/usb_device.c:2671 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x807 _sx_xlock() at _sx_xlock+0x55 usbd_enum_lock() at usbd_enum_lock+0x2a usb_unconfigure() at usb_unconfigure+0x16a usb_free_device() at usb_free_device+0x184 uhub_detach() at uhub_detach+0x6a device_detach() at device_detach+0xa4 usb_detach_device() at usb_detach_device+0x78 usb_unconfigure() at usb_unconfigure+0x34 usb_free_device() at usb_free_device+0x184 uhub_explore() at uhub_explore+0x18e usb_bus_explore() at usb_bus_explore+0xc1 usb_process() at usb_process+0xbb fork_exit() at fork_exit+0x12a fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff81238cecf0, rbp = 0 --- During boot I get the following errors logged: uhub_reattach_port: port 6 reset failed, error=USB_ERR_TIMEOUT uhub_reattach_port: device problem (USB_ERR_TIMEOUT), disabling port 6 uhub_reattach_port: port 2 reset failed, error=USB_ERR_TIMEOUT uhub_reattach_port: device problem (USB_ERR_TIMEOUT), disabling port 2 Before the LOR, some devices get disconnected: ugen5.2: <Broadcom> at usbus5 (disconnected) uhub7: at uhub5, port 2, addr 2 (disconnected) ugen5.3: <Broadcom Corp> at usbus5 (disconnected) And after, more: ugen5.4: <Broadcom Corp> at usbus5 (disconnected) ukbd0: at uhub7, port 2, addr 4 (disconnected) ugen5.5: <Broadcom Corp> at usbus5 (disconnected) ums0: at uhub7, port 3, addr 5 (disconnected) -- Bruce Cran _______________________________________________ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"
