On Wed 15-06-22 13:00:22, Jan Kara wrote: > On Tue 14-06-22 12:00:22, Linus Torvalds wrote: > > On Tue, Jun 14, 2022 at 11:51 AM Linus Torvalds > > wrote: > > > > > > Or just make sure that noop_backing_dev_info is fully initialized > > > before it's used. > > > > I don't see any real reason why that > > > > err = bdi_init(&noop_backing_dev_info); > > > > couldn't just be done very early. Maybe as the first call in > > driver_init(), before the whole devtmpfs_init() etc. > > I've checked the dependencies and cgroups (which are the only non-trivial > dependency besides per-CPU infrastructure) are initialized early enough so > it should work fine. So let's try that. Attached patch boots for me. Guys, who was able to reproduce the failure: Can you please confirm this patch fixes your problem? Honza -- Jan Kara SUSE Labs, CR