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.
I'm checking this also.
--
Luiz Fernando N. Capitulino
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