When system memory is low VMs are started but cannot boot correctly

[marmarek]

Reported by joanna on 6 Jan 2012 15:31 UTC
OOM kills almost everything in them... Seems like we have to little threshold for VM. Perhaps FC15 is more mem hungry?

Migrated-From: https://wiki.qubes-os.org/ticket/412

[marmarek]

Comment by marmarek on 15 Jan 2012 00:02 UTC
What is your startup memory size for this VM? Default 400MB? Is it reproductable?

[marmarek]

Comment by marmarek on 15 Jan 2012 00:02 UTC
What is your startup memory size for this VM? Default 400MB? Is it reproductable?

[marmarek]

Comment by joanna on 15 Jan 2012 10:13 UTC
It's 400MB for all VMs (except for the dvm template):

[appvms](joanna@dom0)$ find . -name *.conf -exec grep "memory" {} \;
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 198
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 171
memory = 400

The problem is reproducible -- I often need to manually qvm-kill an AppVM that was started, but killed by an OOM. This problem didn't occur on Beta 2.

[marmarek]

Comment by joanna on 15 Jan 2012 10:13 UTC
It's 400MB for all VMs (except for the dvm template):

[appvms](joanna@dom0)$ find . -name *.conf -exec grep "memory" {} \;
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 198
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 400
memory = 171
memory = 400

The problem is reproducible -- I often need to manually qvm-kill an AppVM that was started, but killed by an OOM. This problem didn't occur on Beta 2.

[marmarek]

Comment by marmarek on 16 Jan 2012 02:34 UTC
Strange. Before any qrexec command, VM should have 400MB memory constantly, which is double size really used after VM startup.
Perhaps there was to many services enabled in FC15? Not all services have /etc/init.d script here, some of them have only systemd unit. If this was the reason - should be fixed by installing qubes-core-vm-systemd package.

[marmarek]

Comment by marmarek on 16 Jan 2012 02:34 UTC
Strange. Before any qrexec command, VM should have 400MB memory constantly, which is double size really used after VM startup.
Perhaps there was to many services enabled in FC15? Not all services have /etc/init.d script here, some of them have only systemd unit. If this was the reason - should be fixed by installing qubes-core-vm-systemd package.

[marmarek]

Comment by joanna on 18 Jan 2012 10:14 UTC
Doesn't seem to be a problem anymore, once upgraded to systemd init on fc15.

[marmarek]

Comment by joanna on 18 Jan 2012 10:14 UTC
Doesn't seem to be a problem anymore, once upgraded to systemd init on fc15.