Date: Fri, 6 Jun 2014 08:42:19 -0500 From: "Matthew D. Fuller" <fullermd@over-yonder.net> To: Andriy Gapon <avg@FreeBSD.org> Cc: "Justin T. Gibbs" <gibbs@FreeBSD.org>, Steven Hartland <killing@multiplay.co.uk>, freebsd-current@FreeBSD.org Subject: Re: ZFS secondarycache on SSD problem on r255173 Message-ID: <20140606134219.GQ33666@over-yonder.net> In-Reply-To: <20140426012652.GA62784@over-yonder.net> References: <20131017061248.GA15980@hell.ukr.net> <326B470C65A04BC4BC83E118185B935F@multiplay.co.uk> <20131017073925.GA34958@hell.ukr.net> <2AFE1CBD9B124E3AB9E05A4E483CCE03@multiplay.co.uk> <20131018080148.GA75226@hell.ukr.net> <256B2E5A0BA44DCBB45BB3F3E820E190@multiplay.co.uk> <20131018144524.GA30018@hell.ukr.net> <4459A6FAB7B8445C97CCB9EFF34FD4F0@multiplay.co.uk> <53144891.9050001@FreeBSD.org> <20140426012652.GA62784@over-yonder.net>
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On Fri, Apr 25, 2014 at 08:26:52PM -0500 I heard the voice of Matthew D. Fuller, and lo! it spake thus: > On Mon, Mar 03, 2014 at 11:17:05AM +0200 I heard the voice of > Andriy Gapon, and lo! it spake thus: > > > > I noticed that on some of our systems we were getting a clearly > > abnormal number of l2arc checksum errors accounted in l2_cksum_bad. > > [...] > > I propose the following patch which has been tested and seems to fix > > the problem without introducing any side effects: > > I've been running this for >2 weeks now without any cksum_bad's > showing up (long enough that without it, I'd have expected them), > and no other obvious side effects. Another 6 weeks on, still working fine and still seems to fix the issue. Any reason not to commit it? -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.
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