Re: [linux-usb-devel] oops on usb storage device disconnect with 2.6.14-rc1

Greg KH
2005-09-15T23:46:38Z

On Thu, Sep 15, 2005 at 05:08:03PM -0400, James Bottomley wrote:
> On Thu, 2005-09-15 at 15:57 -0400, James Bottomley wrote:
> > I haven't had time to review the eh changes, but I was going to reply to
> > the other one (basically there's a better way to try to close the device
> > add/host remove race using the host state model).
> >
> > Let me complete the SCSI process and I'll take them through the scsi-rc-
> > fixes tree.
>
> Well, I think the symptoms are racing scsi_remove_host() calls and the
> solution is to enforce the state model on removal (as in if the host is
> already in the remove state, don't try to remove it again).
>
> Could you try the patch here:
>
> http://marc.theaimsgroup.com/?l=linux-scsi&m=112613077011571
>
> And see if it will fix the problem?

That helped in that there is no more kernel oops. But the
/sys/block/sdb device (and partitions) do not get removed from the
kernel. So the next time I plug the device in, it gets bumped to "sdc".
I can provide kernel logs of the unplug event if you wish.

thanks,

greg k-h