On Wed, 2010-03-10 at 17:40 +0100, Bram Matthys (Syzop) wrote:

> attempt to access beyond end of device
> ubda: rw=0, want=7390279568, limit=4096000
> attempt to access beyond end of device
> ubda: rw=0, want=26462532144, limit=4096000
> [many many more]
> 
> INSIDE VM:
> # df
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/ubd0              2015824   1934408     60936  97% /
> ON HOST:
> - -rw-r--r-- 1 xyz xyz 2097152000 2010-03-10 17:29 /home/xyz/root_fs
> ...nothing wrong with that AFAICT.
> 

If you are using ext4, check whether these options make a difference:
sync,max_batch_time=0

Or just sync if you use ext3.

I don't need it for 2.6.33-r6, but it would not surprise me if this
prevents your errors. It will of course slow down your IO drastically.
You may also check whether memory size matters: e.g. 128, 256 and 512 MB
memory for the guest.

-Janjaap


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