From: Andi Kleen <andi@firstfloor.org>
To: acme@redhat.com, jolsa@redhat.com, eranian@google.com,
linux-kernel@vger.kernel.org
Subject: perf user tool precise attribute broken in 3.5rc1+
Date: Thu, 7 Jun 2012 22:23:55 +0200 [thread overview]
Message-ID: <20120607202355.GQ27374@one.firstfloor.org> (raw)
With a perf user tool compiled from a 3.5rc1+ kernel I cannot
use the 'p' attribute anymore. Always get
ak@petrock:~> ./perf record -e cycles:p ./t
Error: sys_perf_event_open() syscall returned with 22 (Invalid argument). /bin/dmesg may provide additional information.
Fatal: No CONFIG_PERF_EVENTS=y kernel support configured?
./t: Terminated
With an older perf it works, so the kernel is ok.
ak@petrock:~> ./perf record -e cycles:p ./t
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.005 MB perf.data (~217 samples) ]
ak@petrock:~>
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next reply other threads:[~2012-06-07 20:24 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-07 20:23 Andi Kleen [this message]
2012-06-07 20:25 ` perf user tool precise attribute broken in 3.5rc1+ Stephane Eranian
2012-06-07 20:45 ` Andi Kleen
2012-06-07 20:49 ` Jiri Olsa
2012-06-07 20:57 ` Andi Kleen
2012-06-07 21:18 ` Jiri Olsa
2012-06-07 20:53 ` Stephane Eranian
2012-06-07 20:58 ` Andi Kleen
2012-06-07 21:28 ` Arnaldo Carvalho de Melo
2012-06-08 3:10 ` Andi Kleen
2012-06-08 15:48 ` Arnaldo Carvalho de Melo
2012-06-08 16:53 ` Andi Kleen
2012-06-08 21:55 ` Andi Kleen
2012-06-09 16:47 ` Arnaldo Carvalho de Melo
2012-12-04 12:02 ` Hassan Salehe Matar
2012-06-07 21:37 ` Stephane Eranian
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