Date: Wed, 28 Apr 2010 23:12:28 +0300 From: Alexander Motin <mav@FreeBSD.org> To: Pete French <petefrench@ticketswitch.com> Cc: freebsd-scsi@freebsd.org, chuzzwassa@gmail.com, scottl@FreeBSD.org, freebsd-stable@freebsd.org Subject: Re: MFC of "Large set of CAM improvements" breaks I/O to Adaptec 29160 SCSI controller Message-ID: <4BD896AC.4080509@FreeBSD.org> In-Reply-To: <E1O7AGM-0005ux-8E@dilbert.ticketswitch.com> References: <E1O7AGM-0005ux-8E@dilbert.ticketswitch.com>
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Pete French wrote: >> I have some 29160N locally and I'll try to reproduce this. > > I would suggest you try gmirror across two drives - that is how > both myself and the original poster first noticed the issue. Thanks. First step successful - I can steadily reproduce problem on CURRENT. raidtest with 200 I/O streams over gmirror of two disks on same channel triggers issue in seconds. Any I/O on channel dying after both disks report "Queue full" error same time. The rest of system works fine. If I preliminarily manually adjust queue depth of one disk - everything works fine. I'll investigate it tomorrow. -- Alexander Motin
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