Stability Issues (Freezes) and Mount SWAP Partition during Boot

Hi,
i'm having the following 2 Issues:
1. Stability issues, The System freezes randomly an i have no hint to get rid of the freezes.
2. At bootyp the Swap Partition won't be mounted. If the bootup ist completet and i type "swapon -a" - everything ist ok
Because i'm a Newbie - i don't know how i could get rid of these Problems.
If you can tell me what i could try or what i schould check - please tell me.
thx
sash

karol wrote:Define 'freeze'. For how long, what were you doing at that time, does systemd's journal, htop or iotop show what could be the cause, do you have to reboot to make it go away?
Post your /etc/fstab.
thx for you answer. I think i have to explain what i mean with "freeze" --> the pc isn't responding, that mean - no key input, no ssh responding. The PC has noch Graphical interface, only console and is uptodate and acts at home as my "server" thats why i cant say what it is exactly doing.
I think the only way is to get all log-files and search for the issue - what logs do i have to check?
How could i check why my swap partition couldn't be activatet at startup, but after login and "swapon -a" everything is fine?
uname -a
Linux server 3.15.9-2-ck #1 SMP PREEMPT Fri Aug 8 03:02:21 EDT 2014 x86_64 GNU/Linux
/etc/fstab:
# UUID=0eb5dbfa-94af-4614-ab65-f223bc367b81 LABEL=Arch
/dev/mapper/enc-sda2 / btrfs rw,relatime,ssd,discard,space_cache,compress,subvol=__active 0 0
# /dev/mapper/enc-sda2 / btrfs rw,relatime,ssd,discard,space_cache,compress,subvol=__active 0 0
# UUID=7ff9cb11-3931-42c8-9987-d0512c50a26e LABEL=boot
/dev/sda1 /boot ext4 rw,relatime,data=ordered 0 2
# 640GB SWD Blue
/dev/mapper/enc-sdb1 /mnt/data1 btrfs rw,relatime,compress,autodefrag,subvol=data1 0 0
/dev/mapper/enc-sdb1 /mnt/timemachine btrfs rw,relatime,compress,autodefrag,subvol=timemachine 0 0
# 1TB
/dev/mapper/enc-sdc1 /mnt/data2 btrfs rw,relatime,space_cache,compress,autodefrag,subvol=data2 0 0
# 2TB
/dev/mapper/enc-sdd1 /mnt/backup btrfs rw,relatime,space_cache,compress,autodefrag,subvol=__active 0 0
# UUID=b9855c07-c383-42d0-b30f-ab3bfc60c8be LABEL=swap
/dev/mapper/enc-sda3 none swap defaults,discard 0 0
/etc/crypttab
enc-sda2 /dev/sda2 /root/key/root.key
enc-sda3 /dev/sda3 /root/key/root.key swap
enc-sdb1 /dev/sdb1 /root/key/root.key
enc-sdc1 /dev/sdc1 /root/key/root.key
enc-sdd1 /dev/sdd1 /root/key/root.key
And i decrypt my /root partition with a key on my usb-stick at boot-time.
Last edited by arch-sash (2014-08-10 15:05:06)

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In fact, I forgot to mentionned swappiness, just tought about mentionneing the swap priority which act at a very different level is only revelevant when you ahve several swap files.
I have already modified that setting since quite a long time... and it indeed makes the system behaviour so much better.
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