From mboxrd@z Thu Jan 1 00:00:00 1970 Mime-Version: 1.0 (Apple Message framework v752.3) Content-Transfer-Encoding: 7bit Message-Id: <9AC90B7C-FEE5-4FA0-A60A-6049CE79E322@utopian.net> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed To: 9fans@cse.psu.edu From: Joshua Wood Subject: Re: [9fans] venti wrarena i/o errors Date: Thu, 29 Nov 2007 04:12:58 -0800 Topicbox-Message-UUID: 0eb4b92a-ead3-11e9-9d60-3106f5b1d025 > > The new machine is a VIA. I will try again without dma. Were you manually turning dma on? If not, this is not likely to be a case where your problem was same as the one I mentioned. I was forcing dma on a chipset not listed in the distributed /sys/src/9/pc/ sdata.c. > I will also > add in the bloom partition, but I'm low on memory at the moment (256MB > doesn't sound low to me, but I find the new venti can be a bit greedy > if not constrained), so I'm not sure if that is actually worth doing. It's optional, and it's not causing your problem, so I don't want to distract from the immediate issue, but you can kinda get the best of both worlds if memory is tight by starting with a bloom filter, then dropping it from your venti conf as the system ages toward less write- intensiveness. > I will read the venti man pages more slowly to understand better. sources/contrib/steve/doc/Venti-rescue.pdf is a mildly-dated but excellent supplement to the manual for the task you're attempting, and discusses memory allotment between venti and fossil in an appendix, too. -- Josh