[issue714] SMP kernel panic at boot: assertion: ((int)sr->sysid ..

[Thomas Nikolajsen <sinknull@xxxxxxxxxxxxxxxxxxxxxxx>]

Thomas Nikolajsen <thomas.nikolajsen@mail.dk> added the comment:

I looked into this: sprinkling kprintf's around:
gd_sysid_alloc==1 and gd_cpuid==0 when sysres_init which panics is called.

It turns out that problem is that ncpus isn't fixed for SMP:
it's initialized to 1 and later changed to number of CPUs.
(in /sys/platform/pc32/i386/mp_machdep.c)

sysref_ctor is called once while ncpus==1.

Simple fix (hack?) is to initialize ncpus to MAXCPU,
and set ncpus* accordingly.

 -thomas

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