Subject: Re: spray and fxp0
To: Chris Jones <>
From: Manuel Bouyer <>
List: current-users
Date: 10/17/1998 19:00:48
On Oct 16, Chris Jones wrote
> On an i386, I'm trying to blast another computer with spray(8).  When
> I run spray, I get:
> sending 1162 packates of lnth 82 to wage ...spray: RPC: Unable to send; errno = No buffer space available
> And, a kernel message appears saying "fxp0: device timeout".  The
> kernel message appears twice.
> This is with maybe one-week old -current.
> Is there a kernel variable I should be tweaking?  This situation seems
> strange, because I've got 128MB of RAM on this box, and the kernel's
> reserving 6.8MB for buffer space, according to the boot messages.  Or
> are there twenty different kinds of buffers, and only one if being
> reported by the kernel boot messages?

It's a different buffer pool. You need to increease the NMBCLUSTERS kernel
option. Default is 256, or 512 with the GATEWAY option.

You may need to increase NKMEMCLUSTERS as well.
For details, see options(4).

Manuel Bouyer, LIP6, Universite Paris VI.