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kernel: only reset processor affinity p->mp when p->wired == nil

--- a/sys/src/9/port/proc.c

+++ b/sys/src/9/port/proc.c

@@ -417,6 +417,7 @@

 	 * When the priority changes, we want to give

 	 * every cpu a chance to pick up the load.

 	 */

+	if(p->wired == nil)

 	if(pri < 3 || pri != p->priority)

 		p->mp = nil;

 	p->priority = pri;

-- 

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