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cpuid instruction causes panic on 486DX system
I just tried to boot a current kernel on my trusty, old
486DX-based machine. It panicked very early in the boot sequence
with a "supervisor trap privileged instruction fault". To me it
seems that the kernel tried to use a not implemented instruction
on this CPU.
Ten finger dmesg and backtrace:
NetBSD 4.99.49 .....
total memory = 40572 KB
avail memory = 36580 KB
cpu0 at mainbus0: (uniprocessor)
cpu0: Intel 486DX (486-class)
kernel: supervisor trap privileged instruction fault, code=0
stopped in pid 0.1 (system) at netbsd:x86_cpuid2+0xe: cpuid
Don't tell me that we have also de-supported the 486-class of
"My instruction set is bigger than your instruction set.
Neener neener neener." -- Brian D Chase on port-vax
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