shithub: nix

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don't use mwait for now, it seems not supported in qemu?

--- a/sys/src/nix/pc64/acore.c

+++ b/sys/src/nix/pc64/acore.c

@@ -121,7 +121,9 @@

 	nix->icc->fn = nil;

 	for(;i;i--){

 		acstackok();

-		mwait(&nix->icc->fn);

+		while (nix->icc->fn == 0)

+			;

+		//mwait(&nix->icc->fn);

 		if(nix->icc->flushtlb)

 			acmmuswitch();

 		DBG("acsched: cpu%d: fn %#p\n", core, nix->icc->fn);