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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90FCAC433FF for ; Tue, 6 Aug 2019 17:03:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 5561F20717 for ; Tue, 6 Aug 2019 17:03:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="u4U898H1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5561F20717 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WsAtFpMOuC10kIl6sgi5lQVS8jf0RGPHgkTwCWo+VRI=; b=u4U898H1ydua2m hx1UYOYy9xGXzfi92keEHWd+EwuWq1JFT/scChAGUWMMJIU6tJGtiJh8OUfwOBJ+AAPURFNXIlSdO koOogUvQe/Simt3HX4H+qEsMbn0LrGMp16r7Dpjy4CK6WE5+fbrMQ6VRCucyPCw1CXxTM9wBmzeiq jjghXL9cZrLhjwMLA0Ud+aWDX+uTRwUIb+duKRtG0dDqz/ehvIY7bzqV573jboWkCcB20MtGQz4s5 YjPnnkZxyUeSTQa8hI6Fo5USJKCB92GArjCEShnveV56HvrFSer+h8SZxIvDe1cNCG/8PjoM1mXlN UE4rrfoC68S+tt6bpKLQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hv2rz-0003vY-U2; Tue, 06 Aug 2019 17:03:31 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hv2ru-0003pB-F7 for linux-arm-kernel@lists.infradead.org; Tue, 06 Aug 2019 17:03:29 +0000 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 56B2420717; Tue, 6 Aug 2019 17:03:25 +0000 (UTC) Date: Tue, 6 Aug 2019 13:03:23 -0400 From: Steven Rostedt To: Joel Fernandes Subject: Re: [PATCH v3] tracing: Function stack size and its name mismatch in arm64 Message-ID: <20190806130323.7075c3da@gandalf.local.home> In-Reply-To: <20190806123455.487ac02b@gandalf.local.home> References: <20190802094103.163576-1-jiping.ma2@windriver.com> <20190802112259.0530a648@gandalf.local.home> <20190802120920.3b1f4351@gandalf.local.home> <20190802121124.6b41f26a@gandalf.local.home> <20190806154811.GB39951@google.com> <20190806123455.487ac02b@gandalf.local.home> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190806_100326_598630_27480815 X-CRM114-Status: UNSURE ( 9.08 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jiping Ma , catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, mingo@redhat.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 6 Aug 2019 12:34:55 -0400 Steven Rostedt wrote: > Here's the best way to explain this. The code is using the stack trace > to figure out which function is the stack hog. Or perhaps a serious of Why so serious? .... s/serious/series/ -- Steve > stack hogs. On x86, a call stores the return address as it calls the > next function. Then that function allocates its stack frame for its > local variables and saving of registers. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel