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Note yet another SMP danger spot.

This commit is contained in:
nathanw 2003-02-17 23:32:33 +00:00
parent 9a38c06746
commit a87506d477
1 changed files with 7 additions and 2 deletions
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9
sys/kern/kern_sa.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_sa.c,v 1.10 2003/02/14 20:45:12 nathanw Exp $ */
/* $NetBSD: kern_sa.c,v 1.11 2003/02/17 23:32:33 nathanw Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_sa.c,v 1.10 2003/02/14 20:45:12 nathanw Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_sa.c,v 1.11 2003/02/17 23:32:33 nathanw Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -999,6 +999,11 @@ sa_vp_repossess(struct lwp *l)
#endif
}
sa_putcachelwp(p, l2);
/*
* XXX SMP race! Need to be sure that l2's state is
* captured before the upcall before we make it possible
* for another processor to grab it.
*/
SCHED_UNLOCK(s);
}
return l2;