bug in head.S
nsheeley at ibmoto.com
Wed Jun 23 02:21:02 EST 1999
This is more or less the same message that I posted earlier, but no one
replied. Please at least tell me to go away ;^)
I was poking around in arch/ppc/kernel/head.S and I noticed this:
oris r18,r8,0x20000000 at h
mtspr DBAT2L,r18 /* N.B. 6xx (not 601) have valid */
mtspr DBAT2U,r21 /* bit in upper BAT register */
^^^^^^^^^^^^^^^^Wouldn't r18 make more sense here?
Has anyone tried to build/run a pmac SMP kernel with a recent (2.2.9)
version of Linux?
o I've got a 9500 with 2 604e/200MHz.
o A UP kernel works fine.
o Compliling the same kernel with the SMP support box checked results in
a kernel that doesn't boot on UP(a G3) or SMP(the 9500) machines.
o I also replaced the dual card with a single 133 MHz CPU, which also fails
to boot the SMP kernel.
Can I expect a SMP kernel to boot on a UP? I thought so, although it might
be slower than a UP kernel on a UP.
The symptoms are that it gets to the point of "opening the display", which
activates the display (all white, I assume painted that way by OF), prints
"copying OF device tree...done" and stops.
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