Author: mjacob
Date: Sat Jun 5 00:55:21 2010
New Revision: 208808
URL: http://svn.freebsd.org/changeset/base/208808
Log:
I was getting panics in sleepq_add for the second sleep in isp_kthread.
I don't know why- but it occurred to me in looking at the second sleep
is that all I want is a pause- not an actual sleep. So do that instead.
MFC after: 2 weeks
Modified:
head/sys/dev/isp/isp_freebsd.c
Modified: head/sys/dev/isp/isp_freebsd.c
==============================================================================
--- head/sys/dev/isp/isp_freebsd.c Fri Jun 4 17:54:30 2010
(r208807)
+++ head/sys/dev/isp/isp_freebsd.c Sat Jun 5 00:55:21 2010
(r208808)
@@ -4139,7 +4139,9 @@ isp_kthread(void *arg)
*/
if (slp == 0 && fc->hysteresis) {
isp_prt(isp, ISP_LOGSANCFG|ISP_LOGDEBUG0, "%s: Chan %d
sleep hysteresis ticks %d", __func__, chan, fc->hysteresis * hz);
- (void) msleep(&isp_fabric_hysteresis,
&isp->isp_osinfo.lock, PRIBIO, "ispT", (fc->hysteresis * hz));
+ mtx_unlock(&isp->isp_osinfo.lock);
+ pause("ispt", fc->hysteresis * hz);
+ mtx_lock(&isp->isp_osinfo.lock);
}
}
mtx_unlock(&isp->isp_osinfo.lock);
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