Hi There
There seems to be an issue if we try to build a btrfs based FS that is
less than 70M, we get the following assertion failure:
mkfs.btrfs: extent-tree.c:2682: btrfs_reserve_extent: Assertion `!(ret)'
failed.
I tried to do a search on this and did not find anything obvious.
Further, if I do build a 70M image, it will not mount until I get to I
increase the about 100M!
# mount -o loop -v rootfs.btrfs mnt
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so.
I can provide a small rootfs (~4M) example if needed
Builds and mounts correct:
mkfs.btrfs -b 104857600 -r rootfs rootfs.btrfs
Builds, but does not mount:
mkfs.btrfs -b 73400320 -r rootfs rootfs.btrfs
Does not build, gives the above assertion error:
mkfs.btrfs -b 10889216 -r rootfs rootfs.btrfs
Thanks
--
Sau!
Saul Wold
Yocto Component Wrangler @ Intel
Yocto Project / Poky Build System
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