Date: Sun, 06 Jan 2008 22:33:06 +0100 From: =?UTF-8?B?TW9ydGVuIFN0csOlcnVw?= <morten@lightworkings.dk> To: freebsd-current@freebsd.org Subject: Re: ZFS on AMD64 - any recent crashes? Message-ID: <47814912.8090704@lightworkings.dk> In-Reply-To: <flr6fm$27c$1@ger.gmane.org> References: <flr6fm$27c$1@ger.gmane.org>
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Ivan Voras wrote: > Hi, > > In light of the recent discussion about ZFS stability, does anyone > still have kmem_map_too_small panics on AMD64 after tuning it (as > presented in http://wiki.freebsd.org/ZFSTuningGuide)? > > I'm interested in reports like this: > http://kerneltrap.org/mailarchive/freebsd-current/2007/9/21/271557 > (note that this report is for an untuned system). > > > > Yes, I've had one such crash. The machine has 4GB of RAM and initially I set it up with vm.kmem_size and vm.kmem_size_max set to 1024M. It's my home fileserver and I'm the only regular user. After booting the box I had tested the transfer speed back and forth over the net and after that not really used it any more that day. The next day I discovered that it had crashed sometime during the night. I've since changed the two tuneables above to 1536M and I've not had any crashes since. I also tried with 2048M but that only resulted in a crash upon boot. Kind regards Morten Strårup
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