From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BA9D0C76195 for ; Tue, 28 Mar 2023 09:00:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=XKXqe4HU+G2Jg82wRUMk20t2dH3f7wMj93DQZ6mK4xE=; b=Ur+2KFmWToOWAD KdND+gY3OvFxkKlgIPv8ODGCEbnMJ6brSBaspCTa0dosPHLjHzAXpNV/SdVb80MmIz4oXuN3Tpksy vCMSd4loSVW+G4tqtJPBi3Z9M4KWq8Lr39LY4D9Yr8zRcsM+yfu8XxEvfLvqBZ36jFHIKfEwZ3D73 E4tbh4KLt49d0nIG3Fz9kS5yTGgPqNBvSUPhfYkV72ThVjC23913R/bk4hzfQ9YIDFxcBulPjnyz/ qJC6+22yw1ox9Ibh+rdcNlpslZFcMyuj956lbvjFt4RFuPM0tccPsKHx3MOHKI9NOXLRQ4pf0BqFo NHnp0QaY0/ewIK1z9T4A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ph5Ay-00DfVn-2Y; Tue, 28 Mar 2023 08:59:32 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ph5Av-00DfUi-2s for linux-arm-kernel@lists.infradead.org; Tue, 28 Mar 2023 08:59:31 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 799DCC14; Tue, 28 Mar 2023 02:00:11 -0700 (PDT) Received: from [10.57.20.101] (unknown [10.57.20.101]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4B89E3F73F; Tue, 28 Mar 2023 01:59:25 -0700 (PDT) Message-ID: <5a120a90-0b95-cfd0-beff-e9228a9d394b@arm.com> Date: Tue, 28 Mar 2023 09:59:25 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 Subject: Re: [BUG] perf: No samples found when using kcore + coresight To: Yang Shi , Leo Yan Cc: linux-perf-users@vger.kernel.org, LAK , coresight@lists.linaro.org, Linux Kernel Mailing List , mathieu.poirier@linaro.org, adrian.hunter@intel.com, Jiri Olsa , acme@redhat.com, mike.leach@linaro.org, Will Deacon , suzuki.poulose@arm.com, yang@os.amperecomputing.com References: <8ca2b07e-674e-afb6-ff12-87504f51f252@arm.com> <20230309113851.GF19253@leoy-yangtze.lan> <20230313121420.GB2426758@leoy-yangtze.lan> <20230314003610.GD2426758@leoy-yangtze.lan> Content-Language: en-US From: James Clark In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230328_015930_000395_EC454049 X-CRM114-Status: GOOD ( 13.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgpPbiAyOC8wMy8yMDIzIDAxOjUzLCBZYW5nIFNoaSB3cm90ZToKPiBIaSBMZW8sCj4gCj4gSnVz dCBmb2xsb3cgdXAgb24gdGhpcyBvbmUuIEFueSB1cGRhdGU/Cj4gCkhpIFlhbmcsCgpTb3JyeSBu byB1cGRhdGUgb24gdGhpcyB5ZXQgZnJvbSBtZS4gSSB3YXMganVzdCBmaW5pc2hpbmcgb2ZmCiJj b3Jlc2lnaHQ6IEZpeCBDVEkgbW9kdWxlIHJlZmNvdW50IGxlYWsgYnkgbWFraW5nIGl0IGEgaGVs cGVyIGRldmljZSIKd2hpY2ggSSBob3BlIHRvIHBvc3QgaW4gdGhlIG5leHQgZGF5IG9yIHR3byBh bmQgdGhlbiBJIHdpbGwgc3RhcnQgb24gdGhpcy4KCkphbWVzCgo+IFRoYW5rcywKPiBZYW5nCj4g Cj4gT24gTW9uLCBNYXIgMTMsIDIwMjMgYXQgNTozNuKAr1BNIExlbyBZYW4gPGxlby55YW5AbGlu YXJvLm9yZz4gd3JvdGU6Cj4+Cj4+IE9uIE1vbiwgTWFyIDEzLCAyMDIzIGF0IDExOjE1OjQ0QU0g LTA3MDAsIFlhbmcgU2hpIHdyb3RlOgo+Pgo+PiBbLi4uXQo+Pgo+Pj4+IEp1c3QgYSBxdWljayBz dW1tYXJ5LCBoZXJlIHdlIGhhdmUgdHdvIGlzc3VlczoKPj4+Pgo+Pj4+IC0gV2l0aCBjb21tYW5k Ogo+Pj4+ICAgcGVyZiByZWNvcmQgLWUgY3NfZXRtL0B0bWNfZXRmNjMvayAtLWtjb3JlIC0tcGVy LXRocmVhZCBcCj4+Pj4gICAtLSB0YXNrc2V0IC0tY3B1LWxpc3QgMSB1bmFtZSIsCj4+Pj4KPj4+ PiAgIHBlcmYgZG9lc24ndCBlbmFibGUgInRleHQgcG9rZSIgYXR0cmlidXRpb24uCj4+Pgo+Pj4g Tm8sIGl0IGVuYWJsZXMgInRleHQgcG9rZSIgYW5kIHBlcmYgZmFpbHMgdG8gZGVjb2RlIGNvcmVz aWdodCB0cmFjZQo+Pj4gZGF0YSB0b28uIEl0IGRvZXNuJ3QgbWF0dGVyIHdoZXRoZXIgIi0ta2Nv cmUiIGlzIGFmdGVyIG9yIGJlZm9yZSAiLWUKPj4+IGNzL2V0bS9AdG1jX2V0ZjYzL2siLgo+Pgo+ PiBVbmRlcnN0YW5kIG5vdy4gIFRoYW5rcyBmb3IgY29ycmVjdGlvbiwgaWYgc28gd2UgY2FuIGln bm9yZSB0aGlzIG9uZS4KPj4KPj4gTGVvCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0t a2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFp bG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==