Hi, On Tue, 4 Oct 2016 15:26:28 +0200 (CEST) Jiri Kosina <jikos@xxxxxxxxxx> wrote: > On Tue, 4 Oct 2016, Jörg Otte wrote: > > > With kernel 4.8.0-01558-g21f54dd I get thousands of > > "dvb-usb: bulk message failed: -11 (1/0)" > > messages in the logs and the DVB adapter is not working. > > > > It tourned out the new config option VMAP_STACK=y (which is the > > default) is the culprit. > > No problems for me with VMAP_STACK=n. > > I'd guess that this is EAGAIN coming from usb_hcd_map_urb_for_dma() > as the DVB driver is trying to perform on-stack DMA. I really thought that this youngster-mistake of mien (these drivers+framework date from 2004-2006 and there it worked just fine) had been fixed some years ago. Seems not the be the case :-(. However, I'm happy to see people using these devices now. Even though I don't have them anymore (or never had them in the first place). Mauro, could you please bring me up to speed or remind when and where you did changes in this regard? I got a little bit rusty regarding linux-media, but I'd be happy to help. regards, -- Patrick. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
