-----linux-usb-owner@xxxxxxxxxxxxxxx wrote: ----- >I updated the BIOS to the latest version, but this did not help. >I tried to disable USB 2.0 in the BIOS, also with no luck. > >I'm out of ideas. :-( > >David Ok, today i figured out that the "hang" appears on ftdi_close. So i enabled "DETECT_HUNG_TASK" in ma kernel and got this: Nov 17 11:51:51 Server [ 220.514082] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.514083] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.515265] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.515267] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.516341] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.516344] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.517641] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.517644] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.518720] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.518723] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.520011] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.520012] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.521317] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.521320] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.522392] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.522394] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.523502] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x541b Nov 17 11:51:51 Server [ 220.523504] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x541b - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.524583] drivers/usb/serial/ftdi_sio.c: ftdi_tiocmget TIOCMGET Nov 17 11:51:51 Server [ 220.526101] drivers/usb/serial/ftdi_sio.c: ftdi_tiocmset TIOCMSET Nov 17 11:51:51 Server [ 220.529313] drivers/usb/serial/ftdi_sio.c: update_mctrl - DTR LOW, RTS LOW Nov 17 11:51:51 Server [ 220.529323] drivers/usb/serial/ftdi_sio.c: ftdi_tiocmget TIOCMGET Nov 17 11:51:51 Server [ 220.532323] drivers/usb/serial/ftdi_sio.c: ftdi_tiocmset TIOCMSET Nov 17 11:51:51 Server [ 220.535313] drivers/usb/serial/ftdi_sio.c: update_mctrl - DTR LOW, RTS HIGH Nov 17 11:51:51 Server [ 220.535324] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl cmd 0x5402 Nov 17 11:51:51 Server [ 220.535325] drivers/usb/serial/ftdi_sio.c: ftdi_ioctl arg not supported - it was 0x5402 - check /usr/include/asm/ioctls.h Nov 17 11:51:51 Server [ 220.535330] drivers/usb/serial/ftdi_sio.c: ftdi_set_termios Nov 17 11:51:51 Server [ 220.535332] drivers/usb/serial/ftdi_sio.c: Setting CS8 Nov 17 11:51:51 Server [ 220.538313] drivers/usb/serial/ftdi_sio.c: get_ftdi_divisor - tty_get_baud_rate reports speed 9600 Nov 17 11:51:51 Server [ 220.538317] drivers/usb/serial/ftdi_sio.c: get_ftdi_divisor - Baud rate set to 9600 (divisor 0x4138) on chip FT232RL Nov 17 11:51:51 Server [ 220.541315] drivers/usb/serial/ftdi_sio.c: ftdi_set_termios Turning off hardware flow control Nov 17 11:51:51 Server [ 220.547315] drivers/usb/serial/ftdi_sio.c: update_mctrl - DTR LOW, RTS LOW Nov 17 11:51:51 Server [ 220.547330] drivers/usb/serial/ftdi_sio.c: ftdi_chars_in_buffer - port 2 Nov 17 11:51:51 Server [ 220.553317] drivers/usb/serial/ftdi_sio.c: update_mctrl - DTR LOW, RTS LOW Nov 17 11:51:51 Server [ 220.553322] drivers/usb/serial/ftdi_sio.c: ftdi_close Nov 17 11:54:11 Server [ 360.493081] INFO: task ws2500:7782 blocked for more than 120 seconds. Nov 17 11:54:11 Server [ 360.493083] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 17 11:54:11 Server [ 360.493085] ws2500 D 0000000000000001 5072 7782 6469 0x00000000 Nov 17 11:54:11 Server [ 360.493090] ffff880081c19d08 0000000000000086 ffffffff0000000f ffff88013f67adc0 Nov 17 11:54:11 Server [ 360.493092] ffff880100000000 ffff880081c19fd8 ffff88009a356320 0000000000013640 Nov 17 11:54:11 Server [ 360.493095] ffff880081c19fd8 0000000000013640 0000000000013640 0000000000013640 Nov 17 11:54:11 Server [ 360.493097] Call Trace: Nov 17 11:54:11 Server [ 360.493104] [<ffffffff8136dc53>] usb_kill_urb +0x91/0xaf Nov 17 11:54:11 Server [ 360.493108] [<ffffffff810559ab>] ? autoremove_wake_function+0x0/0x34 Nov 17 11:54:11 Server [ 360.493113] [<ffffffffa01fe1b6>] ftdi_close +0x4a/0x5e [ftdi_sio] Nov 17 11:54:11 Server [ 360.493116] [<ffffffffa002402a>] serial_down +0x2a/0x2c [usbserial] Nov 17 11:54:11 Server [ 360.493119] [<ffffffff8127e36f>] tty_port_shutdown+0x3d/0x4a Nov 17 11:54:11 Server [ 360.493121] [<ffffffff8127e9c4>] tty_port_close +0x1e/0x42 Nov 17 11:54:11 Server [ 360.493124] [<ffffffffa00245ed>] serial_close +0x58/0x61 [usbserial] Nov 17 11:54:11 Server [ 360.493127] [<ffffffff81278314>] tty_release +0x23e/0x5af Nov 17 11:54:11 Server [ 360.493129] [<ffffffff8127d275>] ? tty_ldisc_deref+0x9/0xb Nov 17 11:54:11 Server [ 360.493131] [<ffffffff81278089>] ? tty_ioctl +0x74f/0x76e Nov 17 11:54:11 Server [ 360.493134] [<ffffffff81031391>] ? __wake_up +0x3f/0x48 Nov 17 11:54:11 Server [ 360.493137] [<ffffffff810de81b>] __fput +0xf9/0x19b Nov 17 11:54:11 Server [ 360.493139] [<ffffffff810de8d2>] fput+0x15/0x17 Nov 17 11:54:11 Server [ 360.493141] [<ffffffff810dbbdf>] filp_close +0x63/0x6d Nov 17 11:54:11 Server [ 360.493143] [<ffffffff810dbc80>] sys_close +0x97/0xcb Nov 17 11:54:11 Server [ 360.493146] [<ffffffff8100296b>] system_call_fastpath+0x16/0x1b But i dont know which function blocks (usb_kill_urb or system_call_fastpath). What do i have to investigate? Regards. David -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
