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Re: kernel's borked again



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Hello,

On Jun 21, 2008, at 06:34, Julian Ganz wrote:
Michael Lorenz (Mittwoch, 18. Juni 2008 23:55):
Hello,

On Jun 18, 2008, at 15:11, Rafal Boni wrote:
On Tue, Jun 17, 2008 at 07:10:00PM -0400, Michael Lorenz wrote:
On Jun 17, 2008, at 17:57, Andrew Doran wrote:
Try with the latest pmap.c, it was missing a UVM_OBJ_INIT.

Still happens. I also deleted everything in the build directory and
tried again in case I've got rubbish there but still no luck.

There's no output from the kernel at all, the loader finishes loading
and the next thing you see is Fast Instruction Access MMU Miss.

bootloader incompatibility?  did kernel size cross some magic
threshold?

Good question. My kernel is considerably smaller than GENERIC though.
The loader is from -current about half a year ago.
now that you say this: I recognized my ultra sparc 5 printing this error
message when attempting to load kernels >8MB
I would check wheather the size just crossed one power to 2

Ok, I finally got around to check - it seems to be exactly what you describe. I added uhci and usb at uhci to my kernel and apparently that triggered the problem. A kernel with only uhci or only ohci is just below 4MB. A kernel with both is well over 4MB ( actually almost 5MB, I had no idea that the USB controller drivers are so monstrous ) Anyway, kernels with only uhci or ohci boot just fine, kernels with both or with just one of them and LOCKDEBUG crash on startup.
So, looks like a bug in the loader.

have fun
Michael

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