Date: Wed, 11 Jun 2003 23:04:09 -0700 (PDT) From: Nate Lawson <nate@root.org> To: Nick Twaddell <ntwaddel@webspacesolutions.com> Cc: current@freebsd.org Subject: Re: panic: page fault on FreeBSD 5.1 -RELEASE Message-ID: <20030611225948.M42109@root.org> In-Reply-To: <003101c33087$9ec93310$0700a8c0@BEASTIE> References: <003101c33087$9ec93310$0700a8c0@BEASTIE>
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On Wed, 11 Jun 2003, Nick Twaddell wrote:
> I downloaded the 5.1 -RELEASE isos yesterday and tried to install them
> on my server. My server is an IBM Xseries 330 server with an IBM
> ServeRAID 4LX Raid card. I tried it with and without ACPI kernels and
> both resulted in a panic. Here is the error..
>
> Fatal trap 12: page fault while in kernel mode
> Fault code = supervisor read, page not present
> Instruction pointer = 0x8:0xc29ee760
> Stack pointer = 0x10:0xcd33fce4
> Frame pointer = 0x10:0xcd33fd0c
> Code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def32 1, gran 1
> Processor eflags = interupt enabled, resume, IOPL = 0
> Current process = 29 (irq9: ahc0 ips0)
> Trap number = 12
>
> Panic = page fault
>
> Did I do something wrong or is there a problem with the driver? :(
I can't see an invalid eip, ebp, or esp in the above page fault. It would
really help if you could get a backtrace ("tr" when you have DDB enabled).
BTW, re@ people: could we add an option (under a sysctl but on by default
in the release) that does a backtrace on page fault? We already have the
backtrace code accessible w/o DDB I believe.
-Nate
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