Re: [Xen-users] Memory problems persist... Cannot allocate memory

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Jan 22, 2010 at 10:06:47PM -0500, James Pifer wrote:
> > Just for reference, back in the Xen 2.0 days I used to have 192 MB of
> > RAM for dom0.. and that was enough.
> > 
> > Nowadays I usually give dom0 512 MB of RAM, or in bigger machines 1024 MB.
> > That is usually enough for a Xen-only server machine (without any local 
> > desktop/X use).
> > 
> > So.. you need to make sure there's nothing leaking memory in dom0. 
> > Xen management tools will obviously require some available memory in dom0 
> > to work correctly.
> > 
> > -- Pasi
> > 
> 
> Here we go again.... I wanted to start another domU on one of me xen
> servers tonight and I'm getting not able to allocate memory again. Check
> out the following stats. 
> 
> If anyone sees anything I'd love to hear it... Please let me know if
> there's anything else I should post.
> 
> Thanks,
> James
> 
> 
> # top
> 
> top - 20:02:11 up 39 days,  9:03,  2 users,  load average: 0.11, 0.85, 1.25
> Tasks: 256 total,   1 running, 255 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.0%us,  0.1%sy,  0.0%ni, 98.5%id,  0.5%wa,  0.0%hi,  0.1%si,  0.8%st
> Mem:   2095616k total,  1689848k used,   405768k free,    11624k buffers
> Swap:  2104472k total,  1476856k used,   627616k free,   406620k cached
>

xend is using 1,8 GB of memory? Is that normal? Even RES is almost 1 GB..

Please post the following logs:

- "xm log" 
- "xm dmesg"
- dom0 "dmesg"
- and if there's something related in /var/log/messages or /var/log/syslog

-- Pasi


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