cat /proc/mounts sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 udev /dev devtmpfs rw,relatime,size=8157548k,nr_inodes=2039387,mode=755 0 0 devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=1634416k,mode=755 0 0 /dev/mapper/md0_crypt / btrfs ro,relatime,space_cache,subvolid=256,subvol=/@ 0 0 none /sys/fs/cgroup tmpfs rw,relatime,size=4k,mode=755 0 0 none /sys/fs/fuse/connections fusectl rw,relatime 0 0 none /sys/kernel/debug debugfs rw,relatime 0 0 none /sys/kernel/security securityfs rw,relatime 0 0 none /tmp tmpfs rw,relatime,size=6291456k 0 0 none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0 none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0 none /run/user tmpfs rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755 0 0 none /sys/fs/pstore pstore rw,relatime 0 0 none /var/tmp/mysql tmpfs rw,relatime,size=6291456k 0 0 /dev/mapper/md0_crypt /home btrfs ro,relatime,space_cache,subvolid=258,subvol=/@home 0 0 /dev/mapper/md0_crypt /backup btrfs ro,relatime,space_cache,subvolid=263,subvol=/@backup 0 0 /dev/sda2 /boot ext4 rw,relatime,stripe=4,data=ordered 0 0 /dev/sdb2 /boot2 ext4 rw,relatime,stripe=4,data=ordered 0 0 systemd /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,name=systemd 0 0 /dev/mapper/md0_crypt /mnt/x btrfs ro,relatime,space_cache,subvolid=5,subvol=/ 0 0
All the btrfs mount points were mounted read-only (they all originate from one partition /dev/mapper/md0_crypt). I started the btrfs balance online (some days ago), meaning I mounted /dev/mapper/md0_crypt to mount point /mnt/x for the btrfs balance operation. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1559723 Title: soft lockup during btrfs balance To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1559723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
