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Article #1600Re: dmf driver problem
From: Keith Muller
Date: Sat, 26 Jul 1986 05:54
Date: Sat, 26 Jul 1986 05:54
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Older cs21 emulex versions of the dmf had a microcode bug that will cause it to wedge the system by holding onto the unibus forever while doing dma output (which many drivers do). See your local emulex person about getting the proms upgraded. I have mods to the 4.3 (june 86) dmf driver that works on both cs11 and cs21 dmfs. It could be moved to 4.2 with a little work. Some of the dmf drivers accidently turn off modem signal interrupts in the section of code that handles a loss of carrier (in dmfrint()) That would cause the line to never respond to carrier after the first connection completed. Keith Muller muller@sdcsvax.ucsd.edu muller@nprdc.ARPA
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arc1-ca.pugleaf.net!utzoo!mnetor!seismo!caip!sri-spam!nike!ucbcad!ucbvax!sdcsvax!sdcc6!sdcc7!mullerReferences:
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!caip!sri-spam!nike!ucbcad!ucbvax!sdcsvax!sdcc6!sdcc7!muller From: muller@sdcc7.ucsd.EDU (Keith Muller) Newsgroups: net.bugs.4bsd Subject: Re: dmf driver problem Message-ID: <459@sdcc7.ucsd.EDU> Date: Sat, 26-Jul-86 01:54:58 EDT Article-I.D.: sdcc7.459 Posted: Sat Jul 26 01:54:58 1986 Date-Received: Sat, 26-Jul-86 22:30:15 EDT References: <131@pollux.UUCP> <165@cstvax.UUCP> Organization: U.C. San Diego, Academic Computer Center Lines: 14 Summary: cs21 microcode etc