Date: Sat, 25 Feb 2012 12:04:05 +1100 From: Jan Mikkelsen <janm@transactionware.com> To: Csillag Tamas <cstamas@digitus.itk.ppke.hu> Cc: freebsd-scsi@freebsd.org Subject: Re: mfi timeout issues and patch that seems to work (PERC H800) Message-ID: <D0CB85E6-0C4B-4BC7-8647-51334B4BF51C@transactionware.com> In-Reply-To: <20120223235932.GB19927@rivendell> References: <20120223235932.GB19927@rivendell>
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On 24/02/2012, at 10:59 AM, Csillag Tamas wrote: > Hi, >=20 > I had the same issues with the Perc H800 controller as it is described > here:=20 > http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dkern/140416 > (Just for google I include the error here: > mfi0: COMMAND 0xffffff80009c4b90 TIMEOUT AFTER 41 SECONDS) > [ =85 ] > however getting and compiling the newest kernel did NOT fix it for me. > Issuing commands with mfiutils still fixed the hang and everything > returned to normal. >=20 > It seems that intensive read triggers the issue, but if you have write > concurrently you are fine (mostly). Restarting rsync is ideal for > triggering this buggy condition. >=20 > I tried to poke around in the source code and in the end tweaked the > patch (seen here before > = http://lists.freebsd.org/pipermail/freebsd-scsi/2011-March/004839.html): >=20 > replacing > (void)sc->mfi_read_fw_status(sc); > with > mfi_get_controller_info(sc); > around line 933 >=20 > and after testing it for a day it seems to be solid. > (The original patch did not help me.) >=20 > Can someone expert in the topic can confirm if any of this is correct? The default value for hw.mfi.msi is 0. I had to set it to 1 in = /boot/loader.conf when using a 9261-8i controller. It might be worth = retesting with that setting and the standard kernel. Regards, Jan.
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