On 27/11/2019 18:07, David Sterba wrote: > On Tue, Nov 26, 2019 at 09:40:06AM +0100, Johannes Thumshirn wrote: >> + ASSERT(atomic_read(&device->dev_stats_ccnt) == 0); > > btrfs/020 [16:59:58][ 3477.975072] run fstests btrfs/020 at 2019-11-27 16:59:58 > [ 3478.974314] kworker/dying (5607) used greatest stack depth: 10792 bytes left > [ 3479.206988] BTRFS: device fsid 818a4909-467d-4599-979c-3b258fb4fc41 devid 1 transid 5 /dev/loop0 scanned by mkfs.btrfs (27347) > [ 3479.234212] BTRFS: device fsid 818a4909-467d-4599-979c-3b258fb4fc41 devid 2 transid 5 /dev/loop1 scanned by mkfs.btrfs (27347) > [ 3479.343996] BTRFS info (device loop0): disk space caching is enabled > [ 3479.349590] BTRFS info (device loop0): has skinny extents > [ 3479.352721] BTRFS info (device loop0): flagging fs with big metadata feature > [ 3479.360793] BTRFS info (device loop0): enabling ssd optimizations > [ 3479.614065] assertion failed: atomic_read(&device->dev_stats_ccnt) == 0, in fs/btrfs/volumes.c:1093 > [ 3479.622041] ------------[ cut here ]------------ > [ 3479.625272] kernel BUG at fs/btrfs/ctree.h:3118! My test setup was missing loopback device support, fixed that. -- Johannes Thumshirn SUSE Labs Filesystems jthumshirn@xxxxxxx +49 911 74053 689 SUSE Software Solutions Germany GmbH Maxfeldstr. 5 90409 Nürnberg Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
