Re: rmmod uhci_hcd -> BUG: atomic counter underflow

[Jiri Slaby]

Jiri Slaby napsal(a):
> Alan Stern napsal(a):
> > On Mon, 12 Mar 2007, Jiri Slaby wrote:
> > > After rmmoding of uhci_hcd on fresh booted 2.6.21-rc3-mm2 I got this:
> > >
> > > BUG: atomic counter underflow at:
> [...]
> > >   [<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]
> [...]
> > Would it be possible for you to add the atomic counter underflow check 
> > to 2.6.21-rc3 and see if the problem still occurs?  If it doesn't, 
> > that's a good indication the USB stack isn't guilty -- the bus 
> > registration code hasn't changed for several kernel releases.
>
> Yes.

I can confirm, that this issue went upstream and is currently present there.

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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