On Fri, Apr 25, 2008 at 11:19:02AM +0300, Pekka J Enberg wrote: > Hi Matthew, > > On Thu, 24 Apr 2008, Matthew Dharm wrote: > > > > This also has all sorts of races between do_mounts 'waiting' and the actual > > > > USB device enumeration. It's entirely possible that the kernel loads via > > > > BIOS, the USB drivers are loaded, that forces devices to disconnect/reset, > > > > and they take a while to re-enumerate. During that delay, the kernel gets > > > > to do_mount; now, no devices show in this "waiting for scan" count. > > On Fri, Apr 25, 2008 at 09:30:52AM +0300, Pekka J Enberg wrote: > > > So how does that happen? ->storage_probe fails and driver core calls it > > > later at some point? > > On Fri, 25 Apr 2008, Matthew Dharm wrote: > > There's no guarantee that storage_probe is going to get called in a timely > > manner. > > How can we add such a guarantee? Don't we have this problem with any other > storage devices? I doubt it. It all depends on exactly when the USB controller initializes, all relevant hubs get initialized, and the device finally discovered. Matt -- Matthew Dharm Home: mdharm-usb@xxxxxxxxxxxxxxxxxx Maintainer, Linux USB Mass Storage Driver I don't have a left mouse button. I only have one mouse and it's on my right. -- Customer User Friendly, 2/13/1999
Attachment:
pgpbaZE9Prt8J.pgp
Description: PGP signature
