Due to bug in older versions of hwclock, /etc/adjtime can contain
excessive drift value (up to many years per day). Prevent it
from applying.
Signed-off-by: Stanislav Brabec <sbrabec@xxxxxxx>
---
sys-utils/hwclock.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sys-utils/hwclock.c b/sys-utils/hwclock.c
index 5e786a8..fe97fcb 100644
--- a/sys-utils/hwclock.c
+++ b/sys-utils/hwclock.c
@@ -1211,6 +1211,10 @@ do_adjustment(struct adjtime *adjtime_p,
printf(_
("Not setting clock because last adjustment time is zero, "
"so history is bad."));
+ } else if (abs(adjtime_p->drift_factor) > MAX_DRIFT) {
+ if (debug)
+ printf(_("Not setting clock because drift factor %f is far too high.\n"),
+ adjtime_p->drift_factor);
} else {
int adjustment;
/* Number of seconds we must insert in the Hardware Clock */
--
1.8.4.5
--
Best Regards / S pozdravem,
Stanislav Brabec
software developer
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