http://defect.opensolaris.org/bz/show_bug.cgi?id=4001
--- Comment #2 from Bill Holler <bill.holler at sun.com> 2008-10-16 13:56:14
---
(In reply to comment #1)
> cpu_idle_fini() is using NULL cstate in this loop:
> for (i = CPU_ACPI_C1; i <= cpu_max_cstates; i++) {
> if (cstate->cs_ksp != NULL)
> kstat_delete(cstate->cs_ksp);
> }
Disassembly and register dump show %r12 contains cstate which is 0.
0x20 is added to %r12 to get the address of (cstate->cs_ksp).
0x20 is then dereferenced to get an invalid value for cstate->cs_ksp.
The invalid value is not NULL.
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