diff --git a/src/cpu.c b/src/cpu.c
index 2a2a4a9715d20e9b76055d559edcb1b2f9e55aa1..c9462506dca025a633ccf3f591de8c23f2671c1a 100644 (file)
--- a/src/cpu.c
+++ b/src/cpu.c
port_host = mach_host_self ();
- /* FIXME: Free `cpu_list' if it's not NULL */
- if ((status = host_processors (port_host, &cpu_list, &cpu_list_len)) != KERN_SUCCESS)
+ status = host_processors (port_host, &cpu_list, &cpu_list_len);
+ if (status == KERN_INVALID_ARGUMENT)
{
- ERROR ("cpu plugin: host_processors returned %i", (int) status);
+ ERROR ("cpu plugin: Don't have a privileged host control port. "
+ "The most common cause for this problem is "
+ "that collectd is running without root "
+ "privileges, which are required to read CPU "
+ "load information. "
+ "<https://collectd.org/bugs/22>");
+ cpu_list_len = 0;
+ return (-1);
+ }
+ if (status != KERN_SUCCESS)
+ {
+ ERROR ("cpu plugin: host_processors() failed with status %d.", (int) status);
cpu_list_len = 0;
return (-1);
}
- DEBUG ("host_processors returned %i %s", (int) cpu_list_len, cpu_list_len == 1 ? "processor" : "processors");
INFO ("cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s");
/* #endif PROCESSOR_CPU_LOAD_INFO */