On Mon, 29 May 2006 12:01:02 -0300
"Luiz Fernando N. Capitulino" <[email protected]> wrote:
|
| Hi Pete,
|
| On Fri, 26 May 2006 13:34:10 -0700
| Pete Zaitcev <[email protected]> wrote:
|
| | On Fri, 26 May 2006 20:22:17 +0200, Frank Gevaerts <[email protected]> wrote:
| |
| | > usb 1-4.5.7: USB disconnect, address 79
| | > ------------[ cut here ]------------
| | > kernel BUG at kernel/workqueue.c:110!
| |
| | Please let me know if this helps:
| |
| | --- linux-2.6.17-rc2/drivers/usb/serial/usb-serial.c 2006-04-23 21:06:18.000000000 -0700
| | +++ linux-2.6.17-rc2-lem/drivers/usb/serial/usb-serial.c 2006-05-22 21:23:29.000000000 -0700
| | @@ -162,6 +162,8 @@ static void destroy_serial(struct kref *
| | }
| | }
| |
| | + flush_scheduled_work(); /* port->work */
| | +
| | usb_put_dev(serial->dev);
| |
| | /* free up any memory that we allocated */
|
| IIUC, the problem occurred before the call to destroy_serial(),
| otherwise it should be in the backtrace.
|
| It seems that 'port->work' is becoming NULL when the device is
| disconnected, but the ipaq_write_bulk_callback() is executing after
| that.
Err, I meant 'port->work->entry' is empty, of course.
--
Luiz Fernando N. Capitulino
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