On Thursday 05 August 2004 00:24, Norbert Preining wrote: > Hi USB Gurus! > > 2.6.8-rc2-mm2 > > It just happened to me that my X stopped working (all frozen) while > syncing my palm. Sysrq/syslog brought forth: > > vmunix: bad: scheduling while atomic! > vmunix: [<c0306098>] schedule+0x3d8/0x3e0 > vmunix: [<f0cc273d>] usb_kill_urb+0xdd/0x160 [usbcore]
Looks like a synchronous unlink from a call context that requires asynchronous unlinks ... > vmunix: [<c0116ba0>] autoremove_wake_function+0x0/0x50 > vmunix: [<c0116ba0>] autoremove_wake_function+0x0/0x50 > vmunix: [<f0cc2650>] usb_unlink_urb+0x40/0x50 [usbcore] > vmunix: [<f0de3608>] serial_throttle+0x38/0x90 [usbserial] > vmunix: [<c01e8a7f>] n_tty_receive_buf+0x1cf/0xe50 ... aha! TTY layer, and flush_to_ldisc() ... I seem to recall that function is inconsistent about its locking policy. Evidently something about this call gave you the undesirable one. > vmunix: [<f12c2828>] _nv001903rm+0x98/0xa4 [nvidia] > vmunix: [<f0cbd912>] usb_get_dev+0x12/0x20 [usbcore] > vmunix: [<f0bca72e>] uhci_submit_common+0x1ee/0x2a0 [uhci_hcd] > vmunix: [<f0cc1b86>] hcd_submit_urb+0x106/0x190 [usbcore] > vmunix: [<c01e7468>] flush_to_ldisc+0x98/0x100 Someone's going to have to sort this out starting from about right here... > vmunix: [<f0dea741>] visor_read_bulk_callback+0x111/0x200 [visor] > vmunix: [<f0bc9f45>] uhci_destroy_urb_priv+0xb5/0x100 [uhci_hcd] > vmunix: [<f0cc20cd>] usb_hcd_giveback_urb+0x1d/0x60 [usbcore] > vmunix: [<f0bcb549>] uhci_finish_urb+0x39/0x60 [uhci_hcd] > vmunix: [<f0bcb5a3>] uhci_finish_completion+0x33/0x50 [uhci_hcd] > vmunix: [<f0bcb789>] uhci_irq+0x179/0x1d0 [uhci_hcd] > vmunix: [<f0cc213e>] usb_hcd_irq+0x2e/0x60 [usbcore] > vmunix: [<c0106140>] handle_IRQ_event+0x30/0x60 > vmunix: [<c01064a0>] do_IRQ+0x90/0x130 > vmunix: [<c01048f4>] common_interrupt+0x18/0x20 > vmunix: visor ttyUSB1: visor_unthrottle - failed submitting read urb, error -1 ------------------------------------------------------- This SF.Net email is sponsored by OSTG. Have you noticed the changes on Linux.com, ITManagersJournal and NewsForge in the past few weeks? Now, one more big change to announce. We are now OSTG- Open Source Technology Group. Come see the changes on the new OSTG site. www.ostg.com _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
