diff options
Diffstat (limited to 'arch/x86/oprofile')
| -rw-r--r-- | arch/x86/oprofile/op_x86_model.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h index 59fa2bdb0da3..ff82a755edd4 100644 --- a/arch/x86/oprofile/op_x86_model.h +++ b/arch/x86/oprofile/op_x86_model.h @@ -59,6 +59,15 @@ struct op_counter_config; static inline void op_x86_warn_in_use(int counter) { + /* + * The warning indicates an already running counter. If + * oprofile doesn't collect data, then try using a different + * performance counter on your platform to monitor the desired + * event. Delete counter #%d from the desired event by editing + * the /usr/share/oprofile/%s/<cpu>/events file. If the event + * cannot be monitored by any other counter, contact your + * hardware or BIOS vendor. + */ pr_warning("oprofile: counter #%d on cpu #%d may already be used\n", counter, smp_processor_id()); } |