On Tue, Aug 9, 2022 at 12:43 PM Thomas Archambault <toma@xxxxxxxxxxxxxxxxx> wrote: > One obvious issue is the non-zero return from an ioctl call with the > BTRFS_IOC_SUBVOL_CREATE arg at line 410, in the snippet below from my > RHEL9.0 strace capture; this is occurring right after the initial blast > of debug log messages. I'm trying to get a stack trace for that error > currently. > > > 410-2064 ioctl(5</>, BTRFS_IOC_SUBVOL_CREATE, {fd=0</dev/pts/0>, > name=".#machine.c8578d59f810b73d"}) = -1 ENOTTY (Inappropriate ioctl for > device) Since you are using XFS and not Btrfs this seems like an expected result.