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From: "nakamura.shun@fujitsu.com" <nakamura.shun@fujitsu.com>
To: "peterz@infradead.org" <peterz@infradead.org>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"acme@kernel.org" <acme@kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"alexander.shishkin@linux.intel.com" 
	<alexander.shishkin@linux.intel.com>,
	"jolsa@redhat.com" <jolsa@redhat.com>,
	"namhyung@kernel.org" <namhyung@kernel.org>
Cc: "linux-perf-users@vger.kernel.org"
	<linux-perf-users@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: libperf : Can not create event group
Date: Mon, 14 Jun 2021 07:17:53 +0000	[thread overview]
Message-ID: <OSBPR01MB46005B38568E90509946ECA9F7319@OSBPR01MB4600.jpnprd01.prod.outlook.com> (raw)

Hello.

perf_evsel__open cannot create an event group because it set group_fd
to -1 when it ran perf_event_open.
Is there any reason why group_fd is fixed at -1?

Best Regards
Shunsuke

             reply	other threads:[~2021-06-14  7:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-14  7:17 nakamura.shun [this message]
2021-06-14 11:17 ` libperf : Can not create event group Jiri Olsa
2021-06-22  7:57   ` nakamura.shun
2021-06-22 21:06     ` Jiri Olsa
2021-06-28  8:44       ` nakamura.shun

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