Matthew Dillon wrote: > Well, it's possible that UFS has bugs related to large block sizes. > People have gotten bitten on and off over the years but usually it > works ok if you leave the 8:1 blocksize:fragsize ratio intact. e.g. > if you have a 64KB block size then you should use a 8K frag size. > If you have a 32KB block size then you should use a 4K frag size. > > This is the case here: fs_bsize 65536, fs_fsize 8192. > I think the buffer cache itself is is likely not the source of this > particular bug. > > I don't know, how, but the bug seems triggered by upping the net.inet.udp.maxdgram from 9216 (default) to 16384 (to match the NFS client's wsize). Once I do that, the machine will either panic or just hang a few minutes into the heavy NFS writing (Sybase database dumps from a Solaris server). Happened twice already... -mi P.S. Thanks for prompt responses and advice, BTW!Received on Wed Oct 13 2004 - 01:43:19 UTC
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