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From: Gilles.Bruno@ujf-grenoble.fr (Bruno Gilles)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: FreeBSD 2.2.1 and reboots!
Date: Thu, 19 Jun 1997 13:10:36 GMT
Organization: Universite Joseph Fourier - Grenoble I
Lines: 65
Message-ID: <5obb4c$m8_002@adm-bruno.ujf-grenoble.fr>
References: <5nsj2o$aco@news.leonardo.net> <33A4C627.7449@OntheNet.com.au> <33A5028C.10D@we.lc.ehu.es> <slrn5qc6j8.ab.mjm@localhost.hna.com.au> <866659494.22444@dejanews.com>
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Keywords: 2940 scsi crash
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Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:43153
In article <866659494.22444@dejanews.com>, jlummel@pacbell.net wrote:
>
>In article <slrn5qc6j8.ab.mjm@localhost.hna.com.au>,
> mjm@hna.com.au.MOOSE (Matt McLeod) wrote:
>>
>> On Mon, 16 Jun 1997 11:08:28 +0200, Jose M. Alcaide <jose@we.lc.ehu.es>
> wrote:
>> >Tony Griffiths wrote:
>> >
>> >> 2.2.1 and the 2940 are _NOT_ a good combintion. You need to upgrade to
>> >> at least 2.2.2 and preferably 2.2-latest via CVSup. The 2.2.2 release
>> >> does seem fairly stable with this device.
>> >>
>> >
>> >Is that also applicable to on-board AHC7880 SCSI controllers?
>>
>> Or, for that matter, the NCR53c810? I'm seeing a little bit of odd
>> behaviour, but nothing on the sort of scale the original poster was talking
>> about.
>
>I hope not, we just switched the 2940 for a NCR SCSI. I'll know in
>a day or two whether that cured the problem. I'll have to look at the
>update though, it'll be a pain because we just updated to the 2.2.1!!
>
>Thanks to all who replied, I appreciate your help! :o)
>
>James
>
>-------------------==== Posted via Deja News ====-----------------------
> http://www.dejanews.com/ Search, Read, Post to Usenet
Greetings from France !
Just a little 0.02$ clue :
I had similar problems with several PPRO 200/AHA 2940 (U/AU/UW). Some time ago
there was a thread on Scsi pb and heavily loaded (ie news servers) boxes.
I went to 2.2.2-Release : it helps a lots but I still had random freezes,
alerts (AHC timeout while in DATAIN phase... etc).
I then wired down my scsi disk in my kernel config (take a look
at /sys/i386/conf/LINT) : I specified the scsi id of each disk
instead of just leavin' them 'in the blue' as 'sd0' :
sd0 at scbus0 target 0 unit 0
sd1 at scbus0 target 2 unit 0
...
And -believe it or not- it works now perfectly : I even was able to achieve
better perfs with tag queueing, scbpaging and memio, now that the scsi sub-
systems is stable ! Neither amanda dumps, nor multiple intensive bonnie test
crash my BSD boxes anymore...
BTW : one of my 'favorite' freebsd_scsi_crashin'_test was :
$ dump 0sf 100000 /dev/null /<some big fs>
It always (before this conf. patch) freezed my SCSI box. :(
.. hope this helps some ..
--
Gilles BRUNO
Universite Joseph Fourier - CRIP
Domaine Universitaire 38041 St Martin d'Heres FRANCE
Tel (33) 04 76 63 56 68 Fax (33) 04 76 51 42 74