Herbert Poetzl schrieb:
On Thu, Jul 13, 2006 at 05:29:28PM +0200, Martin Pajak wrote:
We are running latest Gentoo vserver with 8 guest instances on it.
Most of them are migrated from a xen environment to vserver and are
running fine, but we encountered a strange problem there:

3 of the systems lost their network interface 4 times within a week

If I enter the guest in such a case, the "ip" or "ifconfig" commands
shows no network interfaces and I can only restart the guest to get it
to work again for now.

Have anyone an idea how it comes to and how can I avoid it?


Meanwhile I tested a bit more and found out that there are 3 of 8 systems involved. One backup system and two production systems. Everytime time if I shutdown the backup system (normally every midnight to reset the snapshots for backup) the both other systems looses their network interface. If I shutdown the systems to restart them, I get "RTNETLINK answers: Cannot assign requested address" error. After restart everything is fine.

although I have no details about your setup, I'd

Our setup:

single amd64 with 2GB ram
2 300GB hdd running as softraid 1 with lvm2 and evms
latest gentoo vserver
all guests have own internet ip's and are running on a evms volumes with snapshot feature for backup purposes

suspect that one guest gets a 'primary' (i.e. not
secondary) ip on the network (check with ip a ls)

I tested this and all guests have only their designated addresses bound, so this shouldn't be the cause here. I don't know the "primary/secondary propagation", but I guess I don't need it in this scenario.


Does anyone have a suggestion with these additional infos?


Thanks in advance
Martin

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