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Newsgroups: comp.unix.bsd Path: sserve!manuel!munnari.oz.au!uunet!usc!sdd.hp.com!mips!nec-gw!nec-tyo!wnoc-tyo-news!ccut!news.u-tokyo.ac.jp!utnet-news!cotton!shin From: shin@nc.u-tokyo.ac.jp (Shin YOSHIMURA) Subject: Re: mysterious system hangups (W/FIXES!) Organization: UTnet Network Operation Center, The University of Tokyo, Japan. In-Reply-To: lidl@rodan.UU.NET's message of 09 Aug 92 08: 33:01 JST References: <1992Aug8.073502.13655@Unibase.SK.CA> <59549@mimsy.umd.edu> <EICHIN.92Aug8190003@tsx-11.mit.edu> <161ljdINNnvr@rodan.UU.NET> Nntp-Posting-Host: cotton.nc.u-tokyo.ac.jp Message-ID: <1992Aug9.232206.954@cotton.nc.u-tokyo.ac.jp> X-Md4-Signature: a0fe51b6a73297edeedc09e7ea9efa7a Sender: news@cotton.nc.u-tokyo.ac.jp (USENET News System) Date: Sun, 9 Aug 1992 23:22:01 GMT Lines: 16 >>>>> On 09 Aug 92 08:33:01 JST, lidl@rodan.UU.NET (Kurt J. Lidl) said: kurt> Hmmm -- my machine behaved almost exactly the opposite of yours for kurt> these two patches. I've got an 8 meg 386+387, with 64K cache (@33 Mhz), kurt> 1 meg et4000 vga, 105meg IDE with no-name controller, Adaptec 1542B kurt> with Micropolis 1528 (1.4 gig scsi), and a WD8013EPT card. 1542B DMA speed should be down to 5.0MB/sec. And maybe need Synchrous Transfer Negotiation. My 486DX/33 system hangs in 5.7MB/s mode even if machdep.c patch was applyed. But in 5.0MB and with Sync Transfer Negotiation it doesn't hang up now. Shin Yoshimura -- $@5HB<!!?-(J $@El5~Bg3X(J