Date: Sat, 13 Jan 2007 11:42:39 -0600 From: CyberLeo Kitsana <cyberleo@cyberleo.net> To: "R. B. Riddick" <arne_woerner@yahoo.com> Cc: FreeBSD Geom <freebsd-geom@freebsd.org> Subject: Re: geom_raid5 livelock? Message-ID: <45A91A0F.8070701@cyberleo.net> In-Reply-To: <835894.31143.qm@web30309.mail.mud.yahoo.com> References: <835894.31143.qm@web30309.mail.mud.yahoo.com>
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R. B. Riddick wrote: > --- CyberLeo Kitsana <cyberleo@cyberleo.net> wrote: >> ... > Possibly there happens an ENOMEM error, which would explain the repititions... > > A further debug line (it is again at debug level 2) before the current line > 1165 (inside the inbed==children IF but in the end of it): > G_RAID5_LOGREQ(bp, "[ready err%d cmp%jd]", obp->bio_error, obp->bio_completed); > Or turn on "bootverbose"... > > For better data safety (e. g. in case of a power loss), I would recommend to > reduce kern.geom.raid5.wdt to 0 or 1 (the lower the safer). > > For less memory consumtion I would use lower values for .maxmem and for > .maxwql... Good morning! http://home.cyberleo.net/cyberleo/workspace/Zip/graid5-all2.log http://home.cyberleo.net/cyberleo/workspace/Zip/graid5-all2-2.log I'm not sure what error 5 is, but it looks ominous. The first log shows two seconds of the first test, where only ad2s2 was showing up. The second log is after a restart of everything, and ad0s2, ad2s2, and ad6s2 show up, indicating that this most likely isn't just a drive, bus, or controller failure. The machine is on a UPS, so power loss isn't too much of an issue. What other impacts would reducing kern.geom.raid5.wdt have? -- Fuzzy love, -CyberLeo Technical Administrator CyberLeo.Net Webhosting http://www.CyberLeo.Net <CyberLeo@CyberLeo.Net> Furry Peace! - http://www.fur.com/peace/
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