Port-xen archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: xenbsd /netbsd: xennetback: can't get new mcl pages (0) (Maybe full message this time..)



Manuel Bouyer wrote:
On Tue, Mar 06, 2007 at 01:16:19PM +0200, Anzi wrote:
Manuel Bouyer wrote:
On Tue, Mar 06, 2007 at 08:18:53AM +0200, Anzi wrote:
How much free ram do you have ? xm info should tell you.
It's possible that There are too much ram allocated to domUs, would cause
problem when dom0 needs some pages to perform I/O with the domUs.


433 Mb of free memory, I think that is enough? Xen version is from pkgsrc, 3.0.3 I think.
433 should be enough. Do you have some linux domain that can baloon and
eat all this free ram ?

Hmm, both domains are fedora core 6 linuxes (originally it was supposed that other is guest is netbsd, netbsd doesn't all required finnish LC_* localisation implemented). How they can eat all free ram? What exactly does the max memory spesified in guest conf mean?

AFAIK it's really a hard limit for a domU. dom0 can grow higher;
xm top will tell you the real usage. It would be interesting to run
xm top while you get the xennetback error.

I think I found out what caused the problem. I had setup cron job to make a daily and weekly backups of root filesystem. Weekly job copies dump image from /backup/dumps/ (different disk) to NFS share on tape server and daily job produces dumps to /backup/dumps. Cron timing was setup @weekly and daily was 10 minutes after midnight. So the daily job was overwriting the image as it was copied to NFS volume. I don't know why it failed with the error but that was the cause of problem.
This weekend it worked ok.

-anzi-






Home | Main Index | Thread Index | Old Index