illumos gate

Affected to gethrestime_sec() under KVM issue.

Issue:
gethrestime_sec returns 0,

gethrestime() returns

.tv_sec == 0

Due to this session, clients become old.

Patch below fixes this situation:

diff -r 6cce99be4e7a usr/src/uts/i86pc/io/todpc_subr.c
--- a/usr/src/uts/i86pc/io/todpc_subr.c Wed May 25 21:29:50 2011 +0400
+++ b/usr/src/uts/i86pc/io/todpc_subr.c Thu May 26 06:07:03 2011 +0400
@@ -172,14 +172,14 @@ todpc_get(tod_ops_t *top)
        int compute_century;
        static int century_warn = 1; /* only warn once, not each time called */
        static int range_warn = 1;
+       static timestruc_t ts_prev;
+

        ASSERT(MUTEX_HELD(&tod_lock));

        if (todpc_rtcget((unsigned char *)&rtc)) {
-               ts.tv_sec = 0;
-               ts.tv_nsec = 0;
                tod_status_set(TOD_GET_FAILED);
-               return (ts);
+               return (ts_prev);
        }

        /* assume that we wrap the rtc year back to zero at 2000 */
@@ -219,6 +219,7 @@ todpc_get(tod_ops_t *top)

        ts.tv_sec = tod_to_utc(tod) + ggmtl();
        ts.tv_nsec = 0;
+       ts_prev = ts;

        return (ts);
 }

The resolved status was premature.

1) The patch seems to be just a workaround.
2) It was not integrated into ilumos.

This affects illumos-gate.