Author: hselasky
Date: Mon May 23 10:31:54 2016
New Revision: 300489
URL: https://svnweb.freebsd.org/changeset/base/300489
Log:
Use DELAY() instead of _sleep() when SCHEDULER_STOPPED() is set inside
pause_sbt(). This allows pause() to continue working during a panic()
which is not invoking KDB. This is useful when debugging graphics
drivers using the LinuxKPI.
Obtained from: kmacy @
MFC after: 1 week
Modified:
head/sys/kern/kern_synch.c
Modified: head/sys/kern/kern_synch.c
==============================================================================
--- head/sys/kern/kern_synch.c Mon May 23 09:44:06 2016 (r300488)
+++ head/sys/kern/kern_synch.c Mon May 23 10:31:54 2016 (r300489)
@@ -327,7 +327,7 @@ pause_sbt(const char *wmesg, sbintime_t
if (sbt == 0)
sbt = tick_sbt;
- if (cold || kdb_active) {
+ if (cold || kdb_active || SCHEDULER_STOPPED()) {
/*
* We delay one second at a time to avoid overflowing the
* system specific DELAY() function(s):
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