Date: Tue, 2 Feb 1999 23:36:35 -0800 (PST) From: perl <perl@netmug.org> To: John Saunders <john.saunders@nlc.net.au> Cc: Gregory Bond <gnb@itga.com.au>, freebsd-stable@FreeBSD.ORG Subject: Re: Kernel panic with recent RELENG_3 Message-ID: <Pine.BSF.4.05.9902022334440.21833-100000@netmug.org> In-Reply-To: <Pine.LNX.3.95.990203182309.27450C-100000@nhj.nlc.net.au>
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I just recently added 0xa0ff to my kernel and now it seems like when I access data on that drive the system stops responding to other processes which were running. Everything is "normal" when the drive stops being accessed. I don't recall this happening until I added 0xa0ff. I'm running FreeBSD 3.0-STABLE Sun Jan 31. Michael On Wed, 3 Feb 1999, John Saunders wrote: > On Wed, 3 Feb 1999, Gregory Bond wrote: > > > > Has anybody else noticed the IDE disk flackyness lately? One one machine > > > I have a ccd mirror, and on another machine a vinum mirror. If I hit > > > these filesystems heavily it's a garantee to lock, no panic, virtual > > > console switching works, ping works, but everything stops. > > > > I discovered what sounds very similar which bit me only when softupdates were > > enabled. I also discovered that if I put the 0xa0ff flags on the drive spec in > > the kernel config (to enable DMA/32 bit/ multi-sector transfers), it works > > fine. My conclusion was some bug in the old-fashioned bit of the IDE driver, > > but no-one accepted my offers of a guaranteed hang to help debug the problem :< > > Hmm, very interesting. Since the recent commit to wd.c that is causing the > DMA error 0 messages, I have been disabling DMA mode in my kernels until > it gets sorted out. I might try with DMA enabled and see what happens. > > Cheers. > -- +------------------------------------------------------------+ > . | John Saunders - mailto:john@nlc.net.au (EMail) | > ,--_|\ | - http://www.nlc.net.au/ (WWW) | > / Oz \ | - 02-9489-4932 or 041-822-3814 (Phone) | > \_,--\_/ | NHJ NORTHLINK COMMUNICATIONS - Supplying a professional, | > v | and above all friendly, internet connection service. | > +------------------------------------------------------------+ > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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