From http://manpages.ubuntu.com/lts.conf:
> NBD_SWAP
> boolean, default False
> Set this to True if you want to turn on NBD swap.
> If unspecified, it's automatically enabled for thin clients with
> less than 300 MB RAM and for fat clients with less than 800 MB RAM.
Your clients have more than 800 MB RAM, so they don't automatically get
a swap unless you specifically set NBD_SWAP=True in lts.conf.
Note that even if you set a swap, by default it's just 512 MB, so it
won't save you if you think that your 8 GB of RAM isn't enough and that
the problem is indeed lack of free memory...
...which I doubt. I'd suggest you look elsewhere for fixing the crashes,
e.g. Xorg/graphics drivers or kernel issues.
--
Alkis Georgopoulos
LTSP developer
Professional LTSP support: alk...@gmail.com
On 06/05/2016 11:37 πμ, Johan Kragsterman wrote:
>
> Hi!
>
>
> I tried asking a question about swap the other day, but nobody seems to
> answer...
>
> So I try again:
>
> There seems to be no swap configured for my fat clients, since it looks like
> this:
>
> admin@ltsp102:~$ sudo cat /proc/swaps
> Filename
> admin@ltsp102:~$
>
> TypeSizeUsedPriority
> admin@ltsp102:~$ sudo free
>totalusedfree shared buff/cache
> available
> Mem:7582448 1976300 1930544 1416000 3675604
> 4099192
> Swap: 0 0 0
> admin@ltsp102:~$
>
>
> nbd-server is up and running, connections are established:
>
> admin@ltsp102:~$ netstat -tu | grep nbd
> tcp0 0 192.168.20.102:55232server:nbd
> ESTABLISHED
> tcp0 0 192.168.20.102:33850server:nbd CLOSE_WAIT
> tcp0 0 192.168.20.102:55366server:nbd CLOSE_WAIT
>
>
> System is an LTSP server KVM virtual machine on OmniOS with enough resources,
> and the fat clients are quad core celerons with 8 GB DDR3 memory. 8 GB is of
> coarse a lot, but there seem to be memory loss that causes reboot to login
> screen, or get the entire client to freeze, which forces a hard reboot.
>
> I checked some other resources, if I should configure swap through ldm.conf,
> but since I didn't need that in 14.04, I don't understand why I should need
> it now...? There is no ldm.conf file in /var/lib/tftboot/"myclient", and it
> was not in 14.04, so this must all be default then.
>
> Only thing I changed since 14.04 is that I now use another default GW, I
> don't go through the LTSP server anymore. But the server responds to the
> "server" ping in the client network, so I can't see that as a problem.
>
> So I would really appreciate some input here...
>
>
> Best regards from/Med vänliga hälsningar från
>
> Johan Kragsterman
>
> Capvert
>
--
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