Re: processes state "sokva"

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Nov 14, 2008 at 09:19:52PM -0600, Al - Image Hosting Services wrote:
> Hi,
> 
> I have been running several servers with lighttpd on them and it hasn't 
> been a problem until lately. The process enters into a state of "sokva". I 
> think this means that it is running out of memory for socket buffers. I 
> tried building a kernel with: "option SOSEND_NO_LOAN", and although now it 
> didn't give me a state of "sokva", some processes stopped responding. I 
> built another kernel with:
> 
> options         MAXFILES=16384
> options         NMBCLUSTERS=20480
> options         DFLDSIZ=402653184
> options         SHMMAXPGS=8192
> options         SYSVMSG 
> options         SYSVSEM 
> options         SYSVSHM 
> options         MSGMNB=16384
> options         MSGSSZ=64
> options         MSGTQL=512
> 
> But I commented out option SOSEND_NO_LOAN.
> 
> I switched to apache, and still I was getting some processes that have a 
> state of "sokva". I then "sysctl -w kern.somaxkva=33554432", it has not 
> done it since then, but I haven't been pushing it as hard as I was.
> 
> I think it could be that my kernel config caused this, or I wonder if 
> there could be a mbufs memory leak. Any ideas?

How much network load do you have ? You may well have a too low
kern.somaxkva for your workload ...

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--