[lkml]   [2018]   [Apr]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[tip:perf/urgent] perf record: Remove suggestion to enable APIC
Commit-ID:  ccbb6afe0890b09cc828373a9a5fffab40ec85df
Author: Andi Kleen <>
AuthorDate: Fri, 6 Apr 2018 13:38:12 -0700
Committer: Arnaldo Carvalho de Melo <>
CommitDate: Wed, 18 Apr 2018 15:35:50 -0300

perf record: Remove suggestion to enable APIC

'perf record' suggests to enable the APIC on errors.

APIC is practically always used today and the problem is usually
somewhere else.

Just remove the outdated suggestion.

Signed-off-by: Andi Kleen <>
Acked-by: Jiri Olsa <>
Signed-off-by: Arnaldo Carvalho de Melo <>
tools/perf/util/evsel.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 66b62570c855..3e87486c28fe 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2870,8 +2870,7 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
#if defined(__i386__) || defined(__x86_64__)
if (evsel->attr.type == PERF_TYPE_HARDWARE)
return scnprintf(msg, size, "%s",
- "No hardware sampling interrupt available.\n"
- "No APIC? If so then you can boot the kernel with the \"lapic\" boot parameter to force-enable it.");
+ "No hardware sampling interrupt available.\n");
case EBUSY:
 \ /
  Last update: 2018-04-21 09:52    [W:0.074 / U:0.168 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site