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[82.69.141.171]) by smtp.gmail.com with ESMTPSA id za6sm32808885wjc.18.2016.03.01.14.08.44 for (version=TLSv1/SSLv3 cipher=OTHER); Tue, 01 Mar 2016 14:08:44 -0800 (PST) Subject: Re: mpr(4) SAS3008 Repeated Crashing To: freebsd-scsi@freebsd.org References: <56D5FDB8.8040402@freebsd.org> From: Steven Hartland Message-ID: <56D612FA.6090909@multiplay.co.uk> Date: Tue, 1 Mar 2016 22:08:58 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <56D5FDB8.8040402@freebsd.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Mar 2016 22:08:48 -0000 Initial ideas would be bad signalling. If you have the option to drop the speeds down and that helps then almost certainly the case. The original mfi driver was very bad at recovering from issues like this too, I spent over a month fixing and patching it to get it working reliably when there where hardware related issues. In my case it turned out the be a dodge CPU causing memory corruption but you'll get similar behaviour from badly designed installs, particularly with expanders in play for high speed devices (6-12Gbps) link speed. Regards Steve On 01/03/2016 20:38, Sean Bruno wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > We're starting to look into cabling and whatnot on a group of > Supermicro hosts we're using after repeatedly running into a > crash/timeout that more or less looks like the following capture from > the serial console: > > https://people.freebsd.org/~sbruno/mpr_stable10.txt > > sean > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2 > > iQF8BAEBCgBmBQJW1f20XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w > ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCQUFENDYzMkU3MTIxREU4RDIwOTk3REQx > MjAxRUZDQTFFNzI3RTY0AAoJEBIB78oecn5k9tEH/3nasxb6yWshKzskzOr5KxwY > dBV2RkoDlq0GKc/oYBfOOsvOAegnrHCFRDQTlXIL3nvBMDyZgtEalcbsnF2jWMaA > Ff4Lt5ZJeg03Xc+Ge/wbAIAThzsCrbH2isLS1jnZi3sc047WtN+HjhAxfozUL/Dj > 1beCTgda36A4K7DBBvPz0gcRS2e/a8Xy1mhlIOr4n3eG+kZrAUSTYrAVos6JybkN > YipRQeHeUDJlO2vSxYITK9kzJn887eg/iwk0udtIaranzJ3CCTmZn3gHuyVDjKJy > eq9DsxrtCvcAMbw4SGrJqPi0BwjfejLgD/+LXAs9Dh6L3BFqZ9Z1BsjlJvfHLXI= > =q6ub > -----END PGP SIGNATURE----- > _______________________________________________ > freebsd-scsi@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-scsi > To unsubscribe, send any mail to "freebsd-scsi-unsubscribe@freebsd.org"