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-rw-r--r--src/bootchart/bootchart.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c
index fc00b4e3f2..5683025b19 100644
--- a/src/bootchart/bootchart.c
+++ b/src/bootchart/bootchart.c
@@ -350,6 +350,14 @@ int main(int argc, char *argv[]) {
log_uptime();
+ if (graph_start < 0.0) {
+ fprintf(stderr,
+ "Failed to setup graph start time.\n\nThe system uptime "
+ "probably includes time that the system was suspended. "
+ "Use --rel to bypass this issue.\n");
+ exit (EXIT_FAILURE);
+ }
+
has_procfs = access("/proc/vmstat", F_OK) == 0;
LIST_HEAD_INIT(head);