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From: John Baldwin <jhb@FreeBSD.org>
Subject: PERFORCE change 21540 for review
To: Perforce Change Reviews <perforce@freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=21540

Change 21540 by jhb@jhb_laptop on 2002/11/26 09:36:07

	Ok, we need the INIT IPI's, too.  Checking my ia32 books a bit
	more closely, the INIT IPI's would seem to be required.  I don't
	know why we are having problems with some of the P4 SMP systems
	though.

Affected files ...

.. //depot/projects/smpng/sys/i386/i386/mp_machdep.c#32 edit

Differences ...

==== //depot/projects/smpng/sys/i386/i386/mp_machdep.c#32 (text+ko) ====

@@ -2155,7 +2155,6 @@
 
 	/* do an INIT IPI: assert RESET */
 	icr_lo = lapic.icr_lo & APIC_ICRLO_RESV_MASK;
-#if 0
 	lapic.icr_lo = icr_lo | 0x0000c500;
 
 	/* wait for pending status end */
@@ -2169,7 +2168,6 @@
 	u_sleep(10000);		/* wait ~10mS */
 	while (lapic.icr_lo & APIC_DELSTAT_MASK)
 		 /* spin */ ;
-#endif
 
 	/*
 	 * next we do a STARTUP IPI: the previous INIT IPI might still be

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