linux-kernel - rmmod uhci_hcd -> BUG: atomic counter underflow

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Message-ID: <45F57B80.5000203@gmail.com>
Date:	Mon, 12 Mar 2007 17:10:40 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Cc:	stern@...land.harvard.edu, linux-usb-devel@...ts.sourceforge.net
Subject: rmmod uhci_hcd -> BUG: atomic counter underflow

Hi.

After rmmoding of uhci_hcd on fresh booted 2.6.21-rc3-mm2 I got this:

BUG: atomic counter underflow at:
  [<c0104f0b>] show_trace_log_lvl+0x1a/0x30
  [<c01055f3>] show_trace+0x12/0x14
  [<c010567a>] dump_stack+0x16/0x18
  [<c01dc41b>] kref_put+0x4d/0xb2
  [<c01db754>] kobject_put+0x14/0x16
  [<c01db8a3>] kobject_unregister+0x22/0x25
  [<c024c987>] bus_remove_driver+0x75/0x82
  [<c024d3b8>] driver_unregister+0xb/0x18
  [<c01e7020>] pci_unregister_driver+0x13/0x73
  [<f88dbbd9>] uhci_hcd_cleanup+0xd/0x2d [uhci_hcd]
  [<c013fb69>] sys_delete_module+0x133/0x195
  [<c0103fe0>] syscall_call+0x7/0xb
  =======================

Note, that this is connected:
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 004: ID 0458:004c KYE Systems Corp. (Mouse Systems) Slimstar 
Pro Keyboard
Bus 002 Device 003: ID 04b4:2050 Cypress Semiconductor Corp.
Bus 002 Device 002: ID 045e:00f0 Microsoft Corp.
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000

What other info do you want me to post?

regards,
-- 
http://www.fi.muni.cz/~xslaby/            Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E

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