On Sun, 18 Sep 2011, Greg KH wrote: > On Sun, Sep 18, 2011 at 08:24:15AM -0700, Greg KH wrote: > > On Sun, Sep 18, 2011 at 10:39:56AM -0400, Alan Stern wrote: > > > On Sun, 18 Sep 2011, Greg KH wrote: > > > > > > > Note, there are some well-known bugs when unloading some usb host > > > > controller drivers that can cause oopses if data is flowing at the > > > > moment, so you might not want to rely on this all that much. > > > > > > All such bugs should have been fixed years ago (unless the host > > > controller drivers in question are no longer being actively > > > maintained). Are there still some outstanding bug reports? > > > > I've seen a report that uhci can cause oopses when unloaded in an older > > SUSE enterprise kernel as memory is still being used by the host > > controller device after the module is unloaded from the system. At > > first glance I didn't find any patches that resolved the issue in > > mainline, but I might have missed them. > > > > If you are curious, I can dig up the bug report. > > Ah, I found it, it's at: > https://bugzilla.novell.com/show_bug.cgi?id=714281 > if you can't see it (I don't know if it's a "closed" bug), and you have > a novell.com bugzilla id, I can add you to it. > > If you don't want a novell.com bugzilla id (which I understand if you > don't), I'll dig the data out of the bug and post it here, as it looks > to affect the 2.6.32 kernel, which wasn't all that old. It's been a long time since I used Novell's bugzilla. My computer remembers the ID "stern58". Still, it might be a good idea to post the relevant data publically, if the other people involved don't mind. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
