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Date:      Thu, 29 Apr 2010 06:17:21 +1000
From:      Andy Farkas <chuzzwassa@gmail.com>
To:        Alexander Motin <mav@freebsd.org>
Cc:        freebsd-scsi@freebsd.org, Pete French <petefrench@ticketswitch.com>
Subject:   Re: MFC of "Large set of CAM improvements" breaks I/O to Adaptec  29160 SCSI controller
Message-ID:  <o2nff80e6381004281317pbdff48f5rb39037317bfa9fdf@mail.gmail.com>
In-Reply-To: <4BD896AC.4080509@FreeBSD.org>
References:  <E1O7AGM-0005ux-8E@dilbert.ticketswitch.com> <4BD896AC.4080509@FreeBSD.org>

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2010/4/29 Alexander Motin <mav@freebsd.org>:
> 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
>

Thanks. Look forward to any results.

-andyf



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