ref: 215f6cc64a65efbe0a71b8fdba72311201aca4fc
parent: aa125d37e9fcec887dddafc1e4725f0875ed38d9
author: cinap_lenrek <[email protected]>
date: Thu May 29 14:24:40 EDT 2014
pc: initiate machine reset only from boot processors in mpshutdown() in vmware, mpshutdown() used to hang in i8042reset() when not called from the boot processor, so instead of reseting from first cpu that acquires the shutdown lock, we park all application processors and let the boot processor do the reset.
--- a/sys/src/9/pc/mp.c
+++ b/sys/src/9/pc/mp.c
@@ -620,9 +620,10 @@
void
mpshutdown(void)
{- static Lock shutdownlock;
-
- if(active.rebooting || !canlock(&shutdownlock)){+ /*
+ * Park application processors.
+ */
+ if(active.rebooting || m->machno != 0){splhi();
arch->introff();
idle();