Date: Thu, 08 May 1997 13:15:10 -0700 (PDT) From: Simon Shapiro <Shimon@i-Connect.Net> To: The Code Warrior <jbowie@bsdnet.org> Cc: FreeBSD-Hackers@FreeBSD.ORG, FreeBSD-SCSI@FreeBSD.ORG, Michael Smith <msmith@atrad.adelaide.edu.au> Subject: Re: Privileged Instruction Fault... Message-ID: <XFMail.970508135807.Shimon@i-Connect.Net> In-Reply-To: <Pine.BSF.3.96.970508080431.5278A-100000@www.eliteness.org>
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Hi The Code Warrior; On 08-May-97 you wrote: > > > On Wed, 7 May 1997, Simon Shapiro wrote: > > > > > Hi Michael Smith; On 08-May-97 you wrote: > > > Simon Shapiro stands accused of saying: > > > > > > > > Fatal trap 12: page fault while in kernel mode > > > > > > > > Fault address 0x41 > > > > > > Forgot to mention; check your structure definitions for members with > > > an offset of 0x41, though I expect you know all this... > > > > Yes, but part of the reason for discussing this publicly is for others, > even > > more naive that I am to not repeat my mistakes :-) > > > > ... > > > Could be just a coincidence but could it have something to do with the > fact that 0x41 is the address in memory of the Letter 'A'? > > -Jon Yes, Thank you. This is when I knew it was a stack problem. The DPT controller identifies many of its control packets by putting ``EATA'' somewhere in the packet. The fact that this ends up as a pointer is the clue. What we need is (I am sure we have it, but I do not know) a way to control stack size (from the config file?), or monitor its size vs. allocated size. Simon
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