Date: Sun, 06 Jan 2008 22:25:54 +0000 From: Hugo Silva <hugo@barafranca.com> To: freebsd-current@FreeBSD.ORG Cc: Ivan Voras <ivoras@freebsd.org> Subject: Re: ZFS on AMD64 - any recent crashes? Message-ID: <47815572.7060705@barafranca.com> 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). > > > > I have 3 amd64 systems & an i386 system (workstation) using ZFS; I've seen panics related to ZFS only on the i386 machine as expected. (Not to mention it's still -CURRENT from months ago :)) The amd64 servers are a home server (with jails hosted on ZFS), and two servers in Canada. Of these two, one is also a jail server (one of the jails is a mail server that'll be fairly loaded when it goes live) and the other is a backup server (still not in production). The most I've thrown at ZFS so far is buildworld & ports, so perhaps that's why I have not seen any problems yet. I'll inform the list if I encounter any such panics when the systems go live, but for the time being, I just wanted to say "no problems on amd64 here". As a sidenote, I use ganglia and I wrote a little script to export the arcsize sysctl to ganglia, from what I've seen it likes to go up til the limit, but will relinquish memory when there's pressure; I can see such ups and downs easily in the graphs if I stress another part of the system. Regards, Hugo
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