On 09/03/2016 15:29, Christian Borntraeger wrote: > FWIW, it seems that this patch triggers this error, the > "tracked_request_begin" > that I reported yesterday and / or some early read issues from the bootloader > in a random fashion. > Using 2906cddfecff21af20eedab43288b485a679f9ac^ seems to work all the time, > moving around vblk->dataplane_started = true also triggers all 3 types > of bugs
In all likelihood, the bug is that virtio_blk_handle_output is being called in two threads. It's not clear to me how that's possible, though. Paolo