On Wed, 10 Apr 2019, Oliver Neukum wrote: > On Di, 2019-04-09 at 15:57 -0400, Alan Stern wrote: > > On Tue, 9 Apr 2019, Bollinger, Seth wrote: > > > > > I will do that as a test. However, I’m concerned that we’re solving only a specific case. Won’t it fail in a similar way if a different subsystem does the same thing (USB modem or video drivers, etc.)? > > > > Those other drivers don't use the block device interface, as far as I > > know. So they would have to use other methods for addressing the > > potential problems in any case. usb-storage is perhaps distinct in > > that it doesn't generate the scatter-gather lists that it uses, but > > instead has to work with whatever the block layer provides. > > UAS, too. But I can pick up the corresponding fix. > Are you sure about sound though? Yes; I just did a quick check for occurrences of "blk_queue" under sound/. Besides, sound drivers use the ALSA interface to userspace. The devices don't show up as regular block devices. Alan Stern
