Date: Mon, 17 Jun 1996 08:16:57 -0700 From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> To: rich@rich.isdn.bcm.tmc.edu Cc: jdw@wwwi.com, freebsd-stable@freebsd.org Subject: Re: Trap 12/supervisor read, page not present Message-ID: <199606171516.IAA24260@freefall.freebsd.org> In-Reply-To: Your message of "Mon, 17 Jun 1996 10:07:33 CDT." <199606171507.KAA00642@richc.isdn.bcm.tmc.edu>
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>ncrcontrol -u 0 -t 0 -s tags=0 > >It eliminated kernel panics that would occur beginning >with the messages: >sd0(ncr0:0:0): COMMAND FAILED (4 28) @f0ab1800 > >This indicates that the queue is full on the Atlas. I >don't know why this happens but once I disabled tags >the problems went away. It's not obvious to me now how >do that with the ahc driver, but it might be worth >trying. Rich The aic7xxx driver will automatically retry a command returned with a Queue Full status, but I doubt that's his problem. You have to actively enable tagged queueing for the aic7xxx driver through a kernel config option that wasn't in his posted config file. -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================
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