On 05/05/2018 01:49 PM, Tetsuo Handa wrote: > Milan Broz wrote: >>> Do we want to abort LOOP_SET_FD request if sysfs_create_group() failed? >> >> I would prefer failure - there are several utilities that expects attributes in >> sysfs to be valid (for example I print info from here in cryptsetup status >> if the backing image is an image), so ignoring failure put the system >> in inconsistent state. > > I see. But can we for now send v1 patch for 4.17 release (and postpone making > LOOP_SET_FD request fail if sysfs_create_group() failed)? This bug has so far > crashed syzbot tests for 6432 times in 190 days. Jens already merged it in the block git. So syzbot should be more happy now :) > We have a lot of bugs regarding loop module which prevent syzbot from > finding other bugs. I want to immediately squash bugs in block/loop so that > we can reduce false-positive hung task reports. Sure, syzbot is definitely very useful idea, thanks! Milan
