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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!newshost.nla.gov.au!act.news.telstra.net!psgrain!newsfeed.internetmci.com!howland.reston.ans.net!blackbush.xlink.net!zib-berlin.de!news.tu-chemnitz.de!irz401!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: SCSI bus hangs - AIC7870 Date: 18 Mar 1996 00:04:00 GMT Organization: Private BSD site, Dresden Lines: 22 Message-ID: <4ii99h$mog@uriah.heep.sax.de> References: <4if5db$bl8@newnews.iafrica.com> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.3 swhite@xwing.wcape.gov.za (Sean White) writes: > On the other port, I have three devices. A Seagate 4GB HAWK drive as device > 0, a Sony SDT-4000E DAT drive as device 1 and a Matsushita CR504 quad-speed > CDROM as device 3. All the devices are seen and work just fine, except for > the DAT drive which, when used, causes the SCSI bus hang and locks the > system up. It seems that the Sony DAT might take an unusual long amount of time to rewind, so the controller gets nervouse and aborts the operation (making everything worse by this). Can you play with the timeouts in the sys/scsi/st.c tape driver? Each call to scsi_scsi_cmd() gets a timeout parameter (in milliseconds, if i remember well). Try a simple tweaking, and see if it helps. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)