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pause_sbt(): Take the cold path (ie. use DELAY()) if KDB is active

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This fixes a panic in the i915 driver when one uses debug.kdb.enter=1
under vt(4).

PR:		193269
Reported by:	emaste@
Submitted by:	avg@
MFC after:	3 days
This commit is contained in:
Jean-Sébastien Pédron 2014-09-08 08:44:50 +00:00
parent afa0a6efe0
commit ffea80b445
1 changed files with 1 additions and 1 deletions
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2
sys/kern/kern_synch.c
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@ -362,7 +362,7 @@ pause_sbt(const char *wmesg, sbintime_t sbt, sbintime_t pr, int flags)
if (sbt == 0) if (sbt == 0)
sbt = tick_sbt; sbt = tick_sbt;
if (cold) { if (cold || kdb_active) {
/* /*
* We delay one second at a time to avoid overflowing the * We delay one second at a time to avoid overflowing the
* system specific DELAY() function(s): * system specific DELAY() function(s):