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. thanks, greg k-h -- 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
