On Wed, Apr 03, 2024 at 08:38:17AM +1100, Dave Chinner wrote: > From: Dave Chinner <dchinner@xxxxxxxxxx> > > xfs_alloc_file_space ends up in an endless loop when > xfs_bmapi_write() returns nimaps == 0 at ENOSPC. The process is > unkillable, and so just runs around in a tight circle burning CPU > until the system is rebooted. What is your reproducer? Let's just fix this for real.