On 04.04.2011 14:15, Vlad Galu wrote:

>     "vmstat -z -M vmcore" says that system was out of mbuf clusters:
> 
>     ITEM                     SIZE     LIMIT      USED      FREE  REQUESTS  
> FAILURES
>     mbuf_cluster:            2048,   100000,   100000,        0, 18897242,   
> 317691

> 
> I've been having the same kind of issues with another 8.2/amd64 box with 
> bge(4) NICs. Unfortunately I don't have console access to that machine and 
> haven't yet graphed anything, but it just so happened for the symptom to 
> occur while I was logged in a couple of days ago and the machine wasn't busy 
> handling anything else than my SSH session. The ISP has checked their switch 
> graphs and told me there was no spike that would correlate to this event 
> either. My machine is UP and I tried both direct and queued (with various 
> queue lenghts) ISR dispatch modes. I never had more than 250k mbuf clusters 
> allocated but for this machine's workload even that is quite generous...

Forgot to note, my problem occured late night with nearly zero load.

Eugene Grosbein
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