RE: [Xen-users] "Memory squeeze in netback driver"

["Marlier, Ian" <ian.marlier@xxxxxxxxxxxxxxxxxxx>]

Anyone have thoughts on this?  I've googled around, and haven't come up
with anything that I haven't tried already.  

And, it severely limits the effectiveness of the Xen environment,
because I'm now running a machine that appears unable to use more than
25% of the available resources...

 

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Marlier, Ian
> Sent: Wednesday, October 18, 2006 11:08 AM
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] "Memory squeeze in netback driver"
> 
> Hi, all
> 
> I'm getting the following in my /var/log/messages file on Dom0:
> Oct 18 11:00:36 devxen0 kernel: printk: 4 messages suppressed.
> Oct 18 11:00:36 devxen0 kernel: xen_net: Memory squeeze in 
> netback driver.
> 
> Which would make sense to me if there were a memory crunch on 
> the box, or in Dom0 alone...but Dom0 has about 12GB of memory 
> availble:
> devxen0:~ # xm list
> Name                              ID Mem(MiB) VCPUs State  Time(s)
> Build5-8-0-km                      2      448     1 -b----  6307.1
> Build5-8-0-km-DealsFilter         10      448     1 -b----    33.6
> Build5-8-0-km-GDS                  4      448     1 -b----   372.6
> Build5-8-2-zj                      8      448     1 -b----  1696.0
> Build5-8-2-zj-gds                  9      448     1 r----- 24591.1
> Dale-GDS                           7      448     1 -b----  1759.5
> Dale-Web                           6      448     1 -b----  2135.7
> Domain-0                           0    12849     4 r-----  5269.6
> mail                               1      128     1 -b----   294.2
> 
> Any thoughts/suggestions on what I can do to convince the 
> netback driver to be a little happier with its life?
> 
> Xen version is 3.0.2_09656-4, running on SUSE Linux 10.1.  
> Kernel is 2.6.16.13-4-xen, stock from the SUSE 10.1 install.
> 
> Additionally, I've got "dom0_mem=1024M" specified on the 
> kernel command line at boot time.  (I'm not sure if that 
> parameter actually does anything, but it doesn't seem to be 
> hurting anything, so...)
> 
> Thanks!
> 
> - Ian
> 
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