Date: Sat, 16 Feb 2008 23:33:24 -0700 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: Niki Denev <nike_d@cytexbg.com> Cc: freebsd-current@freebsd.org, "Gelsema, P \(Patrick\)" <gelsemap@superhero.nl>, JoaoBR <joao@matik.com.br> Subject: Re: Adaptec AHD U320 operating as only U160 Message-ID: <47B7D534.7000204@scsiguy.com> In-Reply-To: <2e77fc10802161506x5d790149lb688d221b0a96222@mail.gmail.com> References: <200704182239.59842.gelsemap@superhero.nl> <86tzvcvaai.fsf@dwp.des.no> <31439.195.50.100.20.1176984826.squirrel@www.superhero.nl> <20080211184453.GA5605@dragon.NUXI.org> <2e77fc10802111330p738d2c93i9eb1189b307d732d@mail.gmail.com> <47B0C34E.7040804@samsco.org> <20080212010836.GA14441@dragon.NUXI.org> <2e77fc10802161506x5d790149lb688d221b0a96222@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Niki Denev wrote: > I was playing around with DTrace, tracing cam/xpt and the ahd driver and > found out that if i comment the following code : > > if ((spi3caps & SID_SPI_IUS) == 0) > spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; > > at line 6655 in sys/cam/cam_xpt.c my disks again negotiate as U320 : > > da0 at ahd0 bus 0 target 0 lun 0 > da0: <SEAGATE ST336807LW 0C01> Fixed Direct Access SCSI-3 device > da0: 320.000MB/s transfers (160.000MHz DT, offset 63, 16bit) > da0: Command Queueing Enabled > da0: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C) The aic79xx driver was not properly exporting its capabilities to CAM. This has been addressed as of version 1.30 of aic79xx_osm.c. Please let me know if you still have problems. > > Unfortunately I began seeing again the "Invalid sequencer interrupt" > messages that i was seeing before(with fbsd 6.2) with Seagate drives > on Adaptec at U320 speeds, and I prey that they are harmless (as they > used to be?) While I do not know their root cause, they do appear to be harmless. Do you happen to have your drives in a SES enclosure (on a backplane with a SES chip)? One user claimed this was only reproducible when a GEM318 SES chip was on the bus. -- Justin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?47B7D534.7000204>