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Put the __insn_barrier() inside the spinloop for the DIAGNOSTIC case, so 

that we have a barrier for the DIAGNOSTIC case too.
This commit is contained in:
christos 2006-05-21 06:17:12 +00:00
parent 9e33bb5bf7
commit c03d07d01d
1 changed files with 5 additions and 7 deletions
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12
sys/arch/amd64/amd64/fpu.c
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@ -1,4 +1,4 @@
/* $NetBSD: fpu.c,v 1.15 2006/04/20 13:23:14 christos Exp $ */
/* $NetBSD: fpu.c,v 1.16 2006/05/21 06:17:12 christos Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
@ -71,7 +71,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.15 2006/04/20 13:23:14 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.16 2006/05/21 06:17:12 christos Exp $");
#include "opt_multiprocessor.h"
@ -372,17 +372,15 @@ fpusave_lwp(struct lwp *l, int save)
#ifdef DIAGNOSTIC
spincount = 0;
#endif
while (l->l_addr->u_pcb.pcb_fpcpu != NULL)
while (l->l_addr->u_pcb.pcb_fpcpu != NULL) {
#ifdef DIAGNOSTIC
{
spincount++;
if (spincount > 10000000) {
panic("fp_save ipi didn't");
}
}
#else
__insn_barrier();
#endif
__insn_barrier();
}
}
#else
KASSERT(ci->ci_fpcurlwp == l);