Hi, I have an USB stick (built-in two-port hub w/ memory and "security device" whatever that is) which, when I plug it into the USB hub beside my box (kernel 2.6.6-mm1), causes khubd to lock up. After that, USB is completely dead and cannot be reanimated without rebooting.
It did work before (2.6.6-rc2-mm2, as I recall). Nothing revealing is in the kernel syslog: May 13 21:54:08 kiste kernel: usb 1-1.3: new full speed USB device using address 10 May 13 21:54:08 kiste kernel: hub 1-1.3:1.0: USB hub found May 13 21:54:08 kiste kernel: hub 1-1.3:1.0: 2 ports detected May 13 21:54:08 kiste kernel: usb 1-1.3.1: new full speed USB device using address 11 Here's the kernel stack (echo t > /proc/sysrq-trigger): May 13 22:17:41 kiste kernel: khubd D FFE80BE1 2492 1914 1 3016 1164 (L-TLB) May 13 22:17:41 kiste kernel: f6adcce4 00000046 00000001 ffe80be1 f6adccc4 f91625c8 f72e5080 00000000 May 13 22:17:41 kiste kernel: 00000040 19800000 f5f2a874 00000000 ec4717c0 000fdd89 f6803770 c170cca0 May 13 22:17:41 kiste kernel: 00000000 ec4717c0 000fdd89 f6ae3478 00000001 dead4ead f6adcd88 f6adcd8c May 13 22:17:41 kiste kernel: Call Trace: May 13 22:17:41 kiste kernel: [<c028b2b1>] wait_for_completion+0xe1/0x210 May 13 22:17:41 kiste kernel: [<f9694e9c>] usb_stor_msg_common+0x11c/0x170 [usb_storage] May 13 22:17:41 kiste kernel: [<f9694f91>] usb_stor_control_msg+0xa1/0xc0 [usb_storage] May 13 22:17:41 kiste kernel: [<f96959f1>] usb_stor_Bulk_max_lun+0x51/0x90 [usb_storage] May 13 22:17:41 kiste kernel: [<f9696bf7>] usb_stor_acquire_resources+0xf7/0x110 [usb_storage] May 13 22:17:41 kiste kernel: [<f9696ebe>] storage_probe+0x12e/0x1e0 [usb_storage] May 13 22:17:41 kiste kernel: [<f9177075>] usb_probe_interface+0x55/0x60 [usbcore] May 13 22:17:41 kiste kernel: [<c01fd315>] bus_match+0x35/0x70 May 13 22:17:41 kiste kernel: [<c01fd38a>] device_attach+0x3a/0xa0 May 13 22:17:41 kiste kernel: [<c01fd588>] bus_add_device+0x68/0xb0 May 13 22:17:41 kiste kernel: [<c01fc3f4>] device_add+0x94/0x140 May 13 22:17:41 kiste kernel: [<f917e805>] usb_set_configuration+0x255/0x3c0 [usbcore] May 13 22:17:41 kiste kernel: [<f9177fa6>] usb_new_device+0xc6/0x1a0 [usbcore] May 13 22:17:41 kiste kernel: [<f917a3d9>] hub_port_connect_change+0x119/0x290 [usbcore] May 13 22:17:41 kiste kernel: [<f917a828>] hub_events+0x2d8/0x3d0 [usbcore] May 13 22:17:41 kiste kernel: [<f917a955>] hub_thread+0x35/0xf0 [usbcore] May 13 22:17:41 kiste kernel: [<c01052c5>] kernel_thread_helper+0x5/0x10 May 13 22:17:41 kiste kernel: Any hints where to dig further? -- Matthias Urlichs ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
