From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org
Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 4/4] perf, tools, record: Remove suggestion to enable APIC
Date: Fri, 6 Apr 2018 13:38:12 -0700 [thread overview]
Message-ID: <20180406203812.3087-5-andi@firstfloor.org> (raw)
In-Reply-To: <20180406203812.3087-1-andi@firstfloor.org>
From: Andi Kleen <ak@linux.intel.com>
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Just remove the outdated suggestion.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 <ak@linux.intel.com>
---
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");
#endif
break;
case EBUSY:
--
2.14.3
next prev parent reply other threads:[~2018-04-06 20:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-06 20:38 Some minor fixes for perf user tools Andi Kleen
2018-04-06 20:38 ` [PATCH 1/4] perf, tools, mem: Allow all record/report options Andi Kleen
2018-04-21 7:50 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
2018-04-06 20:38 ` [PATCH 2/4] perf, tools: Clarify browser help Andi Kleen
2018-04-21 7:51 ` [tip:perf/urgent] perf hists browser: Clarify top/report " tip-bot for Andi Kleen
2018-04-06 20:38 ` [PATCH 3/4] perf, tools, record: Remove misleading error suggestion Andi Kleen
2018-04-21 7:51 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
2018-04-06 20:38 ` Andi Kleen [this message]
2018-04-21 7:52 ` [tip:perf/urgent] perf record: Remove suggestion to enable APIC tip-bot for Andi Kleen
2018-04-13 13:13 ` Some minor fixes for perf user tools Jiri Olsa
2018-04-13 14:33 ` Arnaldo Carvalho de Melo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180406203812.3087-5-andi@firstfloor.org \
--to=andi@firstfloor.org \
--cc=acme@kernel.org \
--cc=ak@linux.intel.com \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox