Date: Tue, 02 Feb 2010 14:21:41 -0800 From: Marcel Moolenaar <xcllnt@mac.com> To: Alexander Motin <mav@FreeBSD.org> Cc: "current@freebsd.org mailing list" <current@freebsd.org> Subject: Re: CAM verbosity (xpt_release_devq(0): requested 1 > present 0) Message-ID: <305C4541-4245-45C9-9FCC-9C6AF4E47DD6@mac.com> In-Reply-To: <4B68A18E.1030500@FreeBSD.org> References: <A454E3C4-2E3D-4E8B-B692-A319240DB43C@mac.com> <4B68A18E.1030500@FreeBSD.org>
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On Feb 2, 2010, at 2:05 PM, Alexander Motin wrote: > Hi. > > Marcel Moolenaar wrote: >> On recent -CURRENT the console gets spammed with the following: >> >> xpt_release_devq(0): requested 1 > present 0 >> >> Can we put this under bootverbose? > > It was already put under INVARIANTS. Which is what developers run by default :-) >> Do we need to print this at all? > > It was hidden before, but we need to fix this, if we want error handling > to work correctly. > > Can you somehow localize situations when those messages appear? What > controller and devices do you use? SCSI controller is: mpt0: <LSILogic SAS/SATA Adapter> mem 0xa0470000-0xa0473fff,0xa0460000-0xa046ffff irq 27 at device 1.0 on pci1 mpt0: [ITHREAD] mpt0: MPI Version=1.5.13.0 mpt0: Capabilities: ( RAID-0 RAID-1E RAID-1 ) mpt0: 0 Active Volumes (2 Max) mpt0: 0 Hidden Drive Members (10 Max) Harddisk is: da0: <HP DG146ABAB4 HPDA> Fixed Direct Access SCSI-5 device da0: 300.000MB/s transfers da0: Command Queueing enabled da0: 140014MB (286749488 512 byte sectors: 255H 63S/T 17849C) This disk has tagged queuing enabled but the disk only has 122 openings. When busy the number of openings can reduce to 121. Due to bugs in the CAM layer the number of openings never gets adjusted when MPT inform CAM about it a Queue Full Event. I suspect this is related to it, but may be wrong... -- Marcel Moolenaar xcllnt@mac.com
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