Date: Sun, 6 Jun 2010 03:45:16 +0200 From: =?iso-8859-1?Q?St=E5le?= Kristoffersen <staale@kristoffersen.ws> To: freebsd-scsi@freebsd.org Subject: mpt request timed out Message-ID: <20100606014516.GA53735@putsch.kolbu.ws>
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Hi, I'm not sure if this is the right list, please tell me if it is. I'm having problems with mpt timeouts when putting load on the disks connected to it. I have the mpt-adapter connected to a sas-expander, and several disks connected to that expander: mpt0: <LSILogic SAS/SATA Adapter> port 0xc800-0xc8ff mem 0xfe8fc000-0xfe8fffff,0xfe8e0000-0xfe8effff irq 16 at device 0.0 on pci1 mpt0: [ITHREAD] mpt0: MPI Version=1.5.20.0 ses0 at mpt0 bus 0 scbus0 target 0 lun 0 ses0: <LSILOGIC SASX36 A.1 7015> Fixed Enclosure Services SCSI-3 device ses0: 300.000MB/s transfers ses0: Command Queueing enabled ses0: SCSI-3 SES Device And all the disks are consumer-grade SATA-diskes like this: da0 at mpt0 bus 0 scbus0 target 1 lun 0 da0: <ATA ST31000528AS CC38> Fixed Direct Access SCSI-5 device da0: 300.000MB/s transfers da0: Command Queueing enabled da0: 953869MB (1953525168 512 byte sectors: 255H 63S/T 121601C) The error I'm seeing is this: http://folk.uio.no/stalk/mpt/timeout.txt I've also put out a full dmesg from boot: http://folk.uio.no/stalk/mpt/dmesg.txt (i've since added 4 new disks, but the error was there before that). What can be causing these timeouts? The controller resets everything and zfs is not complaining: pool: media state: ONLINE scrub: scrub stopped after 0h4m with 0 errors on Wed May 12 13:58:05 2010 config: NAME STATE READ WRITE CKSUM media ONLINE 0 0 0 raidz1 ONLINE 0 0 0 da14 ONLINE 0 0 0 da11 ONLINE 0 0 0 da6 ONLINE 0 0 0 da3 ONLINE 0 0 0 raidz1 ONLINE 0 0 0 da15 ONLINE 0 0 0 da12 ONLINE 0 0 0 da9 ONLINE 0 0 0 da5 ONLINE 0 0 0 raidz1 ONLINE 0 0 0 da8 ONLINE 0 0 0 da2 ONLINE 0 0 0 da0 ONLINE 0 0 0 da4 ONLINE 0 0 0 raidz1 ONLINE 0 0 0 da1 ONLINE 0 0 0 da13 ONLINE 0 0 0 da10 ONLINE 0 0 0 da7 ONLINE 0 0 0 raidz1 ONLINE 0 0 0 da17 ONLINE 0 0 0 da18 ONLINE 0 0 0 da19 ONLINE 0 0 0 da20 ONLINE 0 0 0 errors: No known data errors but clients time out or gets an error if they try to do IO while the connection is down, and thats causing havoc. The timeouts last from 10 up to 30 seconds each. I'd appreciate any ideas! -- Ståle Kristoffersen
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