Hello,

Recently started playing with OBSD. I have the machine setup as a file
server at home. It is running NFS, DHCP and DNS.

When I try to do large writes to my BSD box (from a SuSE 10.1 client)
over NFS, using async I/O (default for mount -t nfs ... on SuSE), it
causes a DoS, that is, the NFS will stop, but so will all other traffic
to/from the server. If it was just NFS, it might not be so bad, but it
also knocks out DHCP and DNS (I can't even ping the machine!).

Very annoying.

Yes, I am aware that I can work-around it by using sync I/O on the
client... but that REALLY sux, as it cripples performance.

What exactly is the problem? Are there options to fix it?

The server is an Athlon 600 w/512MB RAM and a hardware RAID 1 sATA
array. (The same machine ran SuSE 10 in the same capacity quite
comfortably for about 12 months...)

Eddy

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