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freebsd_amp_hwpstate
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add a diagnostic to catch some common cases of tsleep being 

called from the wrong place.
This commit is contained in:
Julian Elischer 1997-08-13 19:29:33 +00:00
parent 2e2d038677
commit 3d0a7bc3b8
1 changed files with 8 additions and 1 deletions
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9
sys/kern/kern_synch.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)kern_synch.c 8.9 (Berkeley) 5/19/95
* $Id: kern_synch.c,v 1.32 1997/06/22 16:04:18 peter Exp $
* $Id: kern_synch.c,v 1.33 1997/08/08 22:48:57 julian Exp $
*/
#include "opt_ktrace.h"
@ -349,8 +349,15 @@ tsleep(ident, priority, wmesg, timo)
return (0);
}
#ifdef DIAGNOSTIC
if( p == NULL )
panic("tsleep1");
if (ident == NULL || p->p_stat != SRUN)
panic("tsleep");
/* XXX This is not exhaustive, just the most common case */
if ((p->p_procq.tqe_next != NULL)
&& (p->p_procq.tqe_next == p->p_procq.tqe_prev)
&& (*p->p_procq.tqe_prev == p))
panic("sleeping process on run queue");
#endif
p->p_wchan = ident;
p->p_wmesg = wmesg;