Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!ames!amdahl!pacbell!sactoh0!tree!jcg From: jcg@tree.UUCP (John Gonnerman) Newsgroups: comp.unix.wizards Subject: Re: V68 - what does disjointio do? Summary: Me too...have a buggy driver that needs help. Message-ID: <324@tree.UUCP> Date: 13 Jun 89 18:34:26 GMT References: Organization: TREE BBS (916)-349-0385 Sacramento, Ca Lines: 33 In article , mrd@sun.soe.clarkson.edu (Michael DeCorte) writes: > I hope someone can help me with a problem I have been having. I am > modifying a tape driver for V68 (Motorola's SysV.3 for 680x0's). [discussion of unclear docs...] I, too, have a device-driver problem on a Motorola system running SysV/68. I have a Xylogics XY772 tape drive controller which runs a Cipher-compatible tape drive for a Motorola 8400E. The device driver provided by the vendor was written for Release 2 Unix, which does not have virtual memory. After the VAR's programmers were done with it, it worked...sort of. The system has problems with the drive...if you try to do a tape operation while the tape is being processed already, the first program becomes locked in the device driver. The process won't die, not even for kill -9, and in turn causes problems when you shut down, since the process is tying up a file system. The tape drive becomes totally inaccessible at this point, thus necessitating a reboot and fsck. The problems, it appears, don't come from the VAR's work, though...Xylogics sent us a copy of the "new" device driver, complete with a new ROM. The device driver code is nearly identical to the version our VAR came up with. We would like to trust Xylogics, and run the new driver and ROM, but we spent so much time down installing the first driver that we are a bit leary of doing that again. Does anyone have experience with this card and device driver? Any help would be appreciated. -- __ | -- John C. Gonnerman -- \__/ __ | ..!ucbvax!pasteur!ames!pacbell!sactoh0!tree!jcg \__/ \__/ | \__ | "THIS is the Age of Magic!"