This value is tunable - an old P4/512Mb box required me to do the below locally, which alleviated the issue (though did impact running memory)
See also the description in the LINT config / your current running values based on your warning looks like you'll want to try 4096 or so if your system can afford it. (not sure if this has to be ^2 but always good to assume things do when dealing with kernel knobs) Cheers, - Chris $ git diff GENERIC diff --git a/sys/config/GENERIC b/sys/config/GENERIC index e117741..7a1e790 100644 --- a/sys/config/GENERIC +++ b/sys/config/GENERIC @@ -4,6 +4,10 @@ # Check the LINT configuration file in sys/config, for an # exhaustive list of options. +# dev02 low memory / hammer cleanup hack +options NBUF=8192 +#end dev02 low memory / hammer cleanup hack + platform pc32 machine i386 machine_arch i386 On 12/20/11 11:39, Zenny wrote:
Hi: I am trying to experiment with HAMMER with a spare PIII/500Mhz old machine with 256MB of RAM. I installed the RELEASE-2.10 version of DFBSD. But when I try to execute "hammer cleanup", it spits out an error that reads: "hammer: System has insufficient buffers to rebalance the tree. nbuf< 3969" However, when I checked in the archive of the mailinglist (http://leaf.dragonflybsd.org/mailarchive/users/2010-03/msg00057.html), it states that 128MB is the minimal requirement, right?! In that case the hw that I am using exceeds the minimal requirement and still spits out the error, which reportedly due to the low memory (http://leaf.dragonflybsd.org/mailarchive/users/2011-05/msg00074.html) Please throw some light! (Very dark here in Scandinavia during winters like this) ;-)