From: Shawn Landden <shawn@churchofgit.com>
Date: Mon, 23 Mar 2015 10:51:35 +0000 (-0700)
Subject: bootchart: more useful error message for common error
X-Git-Tag: v219.0~245
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=de49f273e20bd37a5644f58175fe66203c9e4b04

bootchart: more useful error message for common error

Reported-by: tfirg_ on IRC
---

diff --git a/src/bootchart/store.c b/src/bootchart/store.c
index 607cc5e74..dfa681f22 100644
--- a/src/bootchart/store.c
+++ b/src/bootchart/store.c
@@ -176,7 +176,7 @@ vmstat_next:
                 /* overall CPU utilization */
                 schedstat = openat(procfd, "schedstat", O_RDONLY);
                 if (schedstat == -1) {
-                        log_error_errno(errno, "Failed to open /proc/schedstat: %m");
+                        log_error_errno(errno, "Failed to open /proc/schedstat (requires CONFIG_SCHEDSTATS=y in kernel config): %m");
                         exit(EXIT_FAILURE);
                 }
         }