diff options
Diffstat (limited to 'usr/src/uts/sun4/io/trapstat.c')
| -rw-r--r-- | usr/src/uts/sun4/io/trapstat.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/usr/src/uts/sun4/io/trapstat.c b/usr/src/uts/sun4/io/trapstat.c index bdaac735fe..9aa25eca4f 100644 --- a/usr/src/uts/sun4/io/trapstat.c +++ b/usr/src/uts/sun4/io/trapstat.c @@ -1712,8 +1712,25 @@ trapstat_cpu_setup(cpu_setup_t what, processorid_t cpu) break; case CPU_UNCONFIG: - if (tcpu->tcpu_flags & TSTAT_CPU_ENABLED) + if (tcpu->tcpu_flags & TSTAT_CPU_ENABLED) { tcpu->tcpu_flags &= ~TSTAT_CPU_ENABLED; +#ifdef sun4v + /* + * A power-off, causes the cpu mondo queues to be + * unconfigured on sun4v. Since we can't teardown + * trapstat's mappings on the cpu that is going away, + * we simply mark it as not allocated. This will + * prevent a teardown on a cpu with the same cpu id + * that might have been added while trapstat is running. + */ + if (tcpu->tcpu_flags & TSTAT_CPU_ALLOCATED) { + tcpu->tcpu_pfn = NULL; + tcpu->tcpu_instr = NULL; + tcpu->tcpu_data = NULL; + tcpu->tcpu_flags &= ~TSTAT_CPU_ALLOCATED; + } +#endif + } break; default: |