Messages in this thread | | | Date | Mon, 29 May 2006 12:01:02 -0300 | From | "Luiz Fernando N. Capitulino" <> | Subject | Re: usb-serial ipaq kernel problem |
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Hi Pete,
On Fri, 26 May 2006 13:34:10 -0700 Pete Zaitcev <zaitcev@redhat.com> wrote:
| On Fri, 26 May 2006 20:22:17 +0200, Frank Gevaerts <frank.gevaerts@fks.be> 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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