Subject: None
To: James Lever <James.Lever@mailbox.uq.oz.au>
From: Chris G Demetriou <Chris_G_Demetriou@LAGAVULIN.PDL.CS.CMU.EDU>
List: current-users
Date: 04/20/1995 15:00:58
> Hi, one small problem.. 
> 
> Bettong (our caching server) was dead from sometime on friday or saturday
> until when I restarted it on monday afternoon.  The message on the console
> was: 
>   bettong ... /netbsd: mb_map full
>   panic: kmem_malloc: mb_map too small
>   Stopped at   _Debugger+0x4:  leave
>   db>
>
> has anyone got any ideas on this one??? Any suggestions in the kernel 
> config??

yes, it ran out of mbuf space.  if that happens often, you might want
to increase the amount of mbuf space by using
'options NMBCLUSTERS=xxx' where xxx is a number larger than the one
you're currently using.  (the default is 256, unless you're using
'options GATEWAY', in which case it's 512.)

also, i strongly discourage enabling DDB on machines that are used as
'servers', because if a server goes down, you generall want it to
reboot and be up ASAP...


chris