Date: Thu, 3 Feb 2011 17:44:24 +0100 From: Joachim Tingvold <joachim@tingvold.com> To: freebsd-scsi@freebsd.org Cc: Alexander Motin <mav@freebsd.org>, "Kenneth D. Merry" <ken@freebsd.org> Subject: Re: mps0-troubles Message-ID: <070C12D5-A54F-4A48-A151-EBA16EF32A13@tingvold.com> In-Reply-To: <BC40CE83-6116-49CD-8D37-5BC29893449D@tingvold.com> References: <mailpost.1294832739.2809102.16331.mailing.freebsd.scsi@FreeBSD.cs.nctu.edu.tw> <4D2DAA45.30602@FreeBSD.org> <B2CFC8A1-FA1D-4718-99C3-AC3430A905C2@tingvold.com> <41C64262-4300-4187-B5FD-04A5EFB7F87C@tingvold.com> <20110113203750.GA39494@nargothrond.kdm.org> <B22C5568-24D0-4530-B90A-BA6A6CAF111C@tingvold.com> <20110114001758.GA12793@nargothrond.kdm.org> <D24332F3-56AF-484C-9592-1097BF684E37@tingvold.com> <07392102-4584-4690-9188-5202728CC7CA@tingvold.com> <20110120155746.GA22515@nargothrond.kdm.org> <BC40CE83-6116-49CD-8D37-5BC29893449D@tingvold.com>
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On Fri, Jan 21, 2011, at 20:15:15PM GMT+01:00, Joachim Tingvold wrote: >> It does look like the out of chain problem was fixed by increasing >> the >> number, so that's good at least. > > Yes. For now, at least. (-: So, it didn't last for long; <http://home.komsys.org/~jocke/dmesg_mps0_freebsd-scsi_4.txt >. [jocke@filserver ~]$ cat /sys/dev/mps/mpsvar.h|grep "MPS_CHAIN_FRAMES" #define MPS_CHAIN_FRAMES 2048 It seems to be happening when copying larger files from 'zroot' to 'storage' (that is, files over 1.5GB in size), or when moving files right after each other (f.ex. using scripts, or moving folders with many files of medium size (300MB+)). Moving a file now-and-then (of sizes no larger than 1.5GB) doesn't seem to trigger it. -- Joachim
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