[Pkg-xen-devel] Bug#414040: kernel: xen_net: Memory squeeze in netback driver.

[Markus Hochholdinger]

Hi,

you have to limit dom0 memory on two places, xen hypervisor option and xend 
config. In this example below I limit memory to 256MB:

/boot/grub/menu.lst
87c87
< # xenhopt=
---
> # xenhopt=dom0_mem=256M

/etc/xen/xend-config.sxp
120c120
< (dom0-min-mem 196)
---
> (dom0-min-mem 256)

After changing /boot/grub/menu.lst you have to run update-grub and reboot the 
machine.
After changing /etc/xen/xend-config.sxp you have to restart xend 
with /etc/init.d/xend restart.

With this I have no more problems with my netback driver on my ~10 dom0s 
running plain Debian 4.0. (My biggest machine has a uptime of over 45 days 
and handles ~20 domUs. Also a lot of live migration are happening to and from 
this host.) So for me this bug doesn't "renders package unusable". I'm very 
happy with the xen packages from Debian 4.0 so i can setup a whole bunch of 
dom0s in a very short time.


-- 
greetings

eMHa
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