Date: Sat, 12 Jul 1997 16:04:49 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: hackers@freebsd.org Subject: Re: system hangs with umax Astra 1200S / freebsd Message-ID: <199707122304.QAA01338@rah.star-gate.com> In-Reply-To: Your message of "Sat, 12 Jul 1997 18:53:09 EDT." <19970712185309.07650@tarsier.colo.erols.net>
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Move to hackers list from sane mailing list: Any clues as to what why the 1522 may a cause a system to hang? Also eric when you get a chance can you try out the "uk" device? Tnks, Amancio >From The Desk Of eric : > On Sat, Jul 12, 1997 at 12:45:36PM -0700, David Mosberger-Tang wrote: > > > > Hmmh, what version of FreeBSD and what SCSI controller are you using? > > I find it strange that a user-level SCSI program would hang the entire > > system. I suppose it might be possible for the scanner to block the > > SCSI bus if something bad happens, but it should not lock up the > > entire system. Hence I wonder whether the problem might be with the > > generic SCSI driver, rather than the UMAX backend. > > > > --david > > > This seemed very strange to me too, but apparently the problem has been > resolved. > > First, it wasn't a matter of the scanner blocking the scsi bus -- it had an > entire scsi bus to itself on an Adaptec 1522 (which turned out to be the > problem) > Second, I'm using the "pt" driver, although i suspect the "uk" driver would > work too now that I've moved the scanner to an Adaptec 2940W. > Everything works more or less fine now, except the scanner still needs to be > the _only_ device on the bus. If I put a disk on the same bus as the scanner, > (with a different SCSI id# obviously) accesses to the disk time out and stuff . > It seems like it may be a termination issue, which I'll fiddle around with > some more. > But anyway, it will not work at all using an AHA1522, with either a Umax or > an HP4c scanner. > > Thank's for all the help! > > > eric > > -- > Source code, list archive, and docs: http://www.azstarnet.com/~axplinux/sane/ > To unsubscribe: mail -s unsubscribe sane-devel-request@listserv.azstarnet.com >
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