On Tue, Oct 04, 2022 at 07:15:51PM +0200, Christian Borntraeger wrote: > > Am 04.10.22 um 18:28 schrieb Jason Gunthorpe: > > On Tue, Oct 04, 2022 at 05:44:53PM +0200, Christian Borntraeger wrote: > > > > > > Does some userspace have the group FD open when it stucks like this, > > > > eg what does fuser say? > > > > > > /proc/<virtnodedevd>/fd > > > 51480 0 dr-x------. 2 root root 0 4. Okt 17:16 . > > > 43593 0 dr-xr-xr-x. 9 root root 0 4. Okt 17:16 .. > > > 65252 0 lr-x------. 1 root root 64 4. Okt 17:42 0 -> /dev/null > > > 65253 0 lrwx------. 1 root root 64 4. Okt 17:42 1 -> 'socket:[51479]' > > > 65261 0 lrwx------. 1 root root 64 4. Okt 17:42 10 -> 'anon_inode:[eventfd]' > > > 65262 0 lrwx------. 1 root root 64 4. Okt 17:42 11 -> 'socket:[51485]' > > > 65263 0 lrwx------. 1 root root 64 4. Okt 17:42 12 -> 'socket:[51487]' > > > 65264 0 lrwx------. 1 root root 64 4. Okt 17:42 13 -> 'socket:[51486]' > > > 65265 0 lrwx------. 1 root root 64 4. Okt 17:42 14 -> 'anon_inode:[eventfd]' > > > 65266 0 lrwx------. 1 root root 64 4. Okt 17:42 15 -> 'socket:[60421]' > > > 65267 0 lrwx------. 1 root root 64 4. Okt 17:42 16 -> 'anon_inode:[eventfd]' > > > 65268 0 lrwx------. 1 root root 64 4. Okt 17:42 17 -> 'socket:[28008]' > > > 65269 0 l-wx------. 1 root root 64 4. Okt 17:42 18 -> /run/libvirt/nodedev/driver.pid > > > 65270 0 lrwx------. 1 root root 64 4. Okt 17:42 19 -> 'socket:[28818]' > > > 65254 0 lrwx------. 1 root root 64 4. Okt 17:42 2 -> 'socket:[51479]' > > > 65271 0 lr-x------. 1 root root 64 4. Okt 17:42 20 -> '/dev/vfio/3 (deleted)' > > > > Seems like a userspace bug to keep the group FD open after the /dev/ > > file has been deleted :| > > > > What do you think about this? > > On top of which tree is this? It should apply on vfio-next Jason
