Date: Tue, 24 Apr 2007 16:33:54 +0200 From: Ollivier Robert <roberto@keltia.freenix.fr> To: freebsd-current@freebsd.org, current@freebsd.org, William Josephson <freebsd-current@morphisms.net> Subject: Re: ATA FLUSHCACHE Message-ID: <20070424143354.GA5211@keltia.freenix.fr> In-Reply-To: <20070424115340.GA2172@keltia.freenix.fr> References: <20070424051420.GA84831@mero.morphisms.net> <200704241554.12605.doconnor@gsoft.com.au> <20070424084409.GA98777@keltia.freenix.fr> <200704241942.40874.doconnor@gsoft.com.au> <20070424115340.GA2172@keltia.freenix.fr>
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According to Ollivier Robert: > As soon as I try to get it working in a more disk-intensive (raidz in that > case) way, it blows up with a panic. It seems to point to a flaw in the > ata driver which may not be managing semaphores/mutex correctly or maybe in > the way it uses UMA zones (the panic starts there). Allowing retries on ATA_FLUSHCACHE operations (by default they are not -- see ata-disk.c around line 280) gets me further but it still panics. -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr Darwin sidhe.keltia.net Kernel Version 8.8.2: Thu Sep 28 20:43:26 PDT 2006 i386
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