--- x/net/core/gen_estimator.c
+++ y/net/core/gen_estimator.c
@@ -90,10 +90,12 @@ static void est_timer(struct timer_list
 	rate = (b_packets - est->last_packets) << (10 - est->intvl_log);
 	rate = (rate >> est->ewma_log) - (est->avpps >> est->ewma_log);
 
+	preempt_disable();
 	write_seqcount_begin(&est->seq);
 	est->avbps += brate;
 	est->avpps += rate;
 	write_seqcount_end(&est->seq);
+	preempt_enable();
 
 	est->last_bytes = b_bytes;
 	est->last_packets = b_packets;