Hello all,
About a week or so ago I noticed that [btrfs-ino-cache] process was
appearing in the 'top' on each reboot and disk is spinning like crazy
for about five minutes or so. Quite so often this caused X failing to
start because all I/O was busy with caching.
Even after letting it to calm down and seeing [btrfs-ino-cache]
disappearing from the process list, on next reboot it starts all over again.
Here is the fstab entry that I have
UUID=430dca92-9541-4201-0f62-373e30beadac / btrfs
subvol=root_subvolume,defaults,noatime,noacl,compress=lzo,inode_cache,space_cache,autodefrag
0 0
inode_cache was always enabled since the FS was created about a year or
so ago, and actually I have never had any problems with it up until
recently.
Removing inode_cache option from fstab solves the problem, but I am not
sure if it is the right choice.
I can observe the problem at least in the vanilla kernel 3.10.4 ~ 6 (did
not try older versions)
What could be the reason for such behavior and how to avoid it?
thanks
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