Date: Wed, 14 Jun 1995 05:59:18 -0400 (EDT) From: Peter Dufault <dufault@hda.com> To: joker@avangard.master.nsk.su (Serge Goncharov) Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: Pioneer DRM 604X CD ROM changer under FreeBSD 2.0.0-SNAP950322 Message-ID: <199506140959.FAA14968@hda.com> In-Reply-To: <3rlvil$h6u@avangard.master.nsk.su> from "Serge Goncharov" at Jun 14, 95 06:28:37 am
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Serge Goncharov writes: > > I have Pioneer DRM-604x drive. This is SCSI-2 CDROM changer (jukebox) > for 6 CDs. It represents itself as SCSI ID 5 (for example) and 6 LUNs within > it. It can be mounted as 6 different CDs and changer substitute corresponding > disk at access query. > That SCSI device was successfully configured and works under > FreeBSD 1.1.5 by recompiling kernel with follow lines in config file: > > device cd0 > device uk0 > > and devices /dev/cd[0-5] was made. All works fine, all LUNs are recognized, > probed and configured during boot. No problem. > > Otherwise in SNAP950322. After adding > device cd0 > in config file, system recognize only one (first) CD, which have LUN=0. > Seems to be only first (0) LUN are probed by default, and result of > "scsi -f /dev/cd0a -p" command to reprobe whole device (all LUNs) is: > > "0:inappropriate ioctl for device: SCIOCADDR" > "...." > "6:inappropriate ioctl for device: SCIOCADDR" The cd device is rejecting this SCIOCADDR request to "pretend" it is a different device; I think cd0c might accept it. > Looking through the code, I've found and add > > options NEW_SCSICONF > > in config. Now system probe _all_ CD LUNs and I can mount its, Apparently OLD_SCSICONF is broken, since there is a match in there for your device saying to probe more luns. > but system dumps to core randomizely at "bio" (suppose, DMA operations) when > I tries to execute some "ls -lR /cd's_mountpoint/cd[0-5]& ; du / &" processes. You mean it panics, not core dumps, right? And the stack backtrace is always different? -- Peter Dufault Real Time Machine Control and Simulation HD Associates, Inc. Voice: 508 433 6936 dufault@hda.com Fax: 508 433 5267
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