diff -NurpP --minimal linux-3.2.15-vs2.3.2.8/fs/proc/stat.c linux-3.2.15-vs2.3.2.9/fs/proc/stat.c
--- linux-3.2.15-vs2.3.2.8/fs/proc/stat.c	2012-01-09 16:19:31.000000000 +0100
+++ linux-3.2.15-vs2.3.2.9/fs/proc/stat.c	2012-04-24 01:29:45.000000000 +0200
@@ -9,6 +9,7 @@
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/irqnr.h>
+#include <linux/vserver/cvirt.h>
 #include <asm/cputime.h>
 #include <linux/tick.h>
 
@@ -66,6 +67,10 @@ static int show_stat(struct seq_file *p,
 		irq = softirq = steal = cputime64_zero;
 	guest = guest_nice = cputime64_zero;
 	getboottime(&boottime);
+
+	if (vx_flags(VXF_VIRT_UPTIME, 0))
+		vx_vsi_boottime(&boottime);
+
 	jif = boottime.tv_sec;
 
 	for_each_possible_cpu(i) {
diff -NurpP --minimal linux-3.2.15-vs2.3.2.8/include/linux/vserver/cvirt.h linux-3.2.15-vs2.3.2.9/include/linux/vserver/cvirt.h
--- linux-3.2.15-vs2.3.2.8/include/linux/vserver/cvirt.h	2011-12-05 19:33:02.000000000 +0100
+++ linux-3.2.15-vs2.3.2.9/include/linux/vserver/cvirt.h	2012-04-24 00:44:36.000000000 +0200
@@ -6,6 +6,8 @@
 
 struct timespec;
 
+void vx_vsi_boottime(struct timespec *);
+
 void vx_vsi_uptime(struct timespec *, struct timespec *);
 
 
diff -NurpP --minimal linux-3.2.15-vs2.3.2.8/kernel/vserver/cvirt.c linux-3.2.15-vs2.3.2.9/kernel/vserver/cvirt.c
--- linux-3.2.15-vs2.3.2.8/kernel/vserver/cvirt.c	2011-12-05 19:33:02.000000000 +0100
+++ linux-3.2.15-vs2.3.2.9/kernel/vserver/cvirt.c	2012-04-24 00:43:39.000000000 +0200
@@ -20,6 +20,16 @@
 #include <asm/uaccess.h>
 
 
+void vx_vsi_boottime(struct timespec *boottime)
+{
+	struct vx_info *vxi = current_vx_info();
+
+	set_normalized_timespec(boottime,
+		boottime->tv_sec + vxi->cvirt.bias_uptime.tv_sec,
+		boottime->tv_nsec + vxi->cvirt.bias_uptime.tv_nsec);
+	return;
+}
+
 void vx_vsi_uptime(struct timespec *uptime, struct timespec *idle)
 {
 	struct vx_info *vxi = current_vx_info();