Hi,
I updated my archlinux to use a grsec kernel (version 4.4.6). Now I
get lots of errors from PAX and all backtraces show mention btrfs.
Is this a known problem? Is there anything I can help to debug this?
This is the dump from the logs:
Apr 11 07:43:36 kernel: PAX: refcount overflow detected
Hi,
I have been running systemd-nspawn containers on top of a btrfs
filesystem for a while now.
This works great: Snapshots are a huge help to manage containers!
But today I ran btrfs subvol list . *inside* a container. To my
surprise I got a list of *all* subvolumes on that drive. That is
basic
Some more information:
[root@ron ~]# uname -a
Linux ron 3.14.3-2-ARCH #1 SMP PREEMPT Mon May 12 20:52:20 CEST 2014
x86_64 GNU/Linux
[root@ron ~]# btrfsck /dev/mapper/raid0d0
Checking filesystem on /dev/mapper/raid0d0
UUID: 18d8b702-5519-40dc-ab14-c425
checking extents
read block failed c
I keep running into this bug on a 2.14.3 kernel from arch linux. It
seems to be triggered by docker removing a machine. Docker is using
the btrfs backend here, so doing so involves some btrfs subvolume
magic (or so I guess:-).
Jun 14 22:18:05 ron kernel: [ cut here ]
Jun 14
