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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 C7596C4338F for ; Wed, 25 Aug 2021 07:17:00 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 4E02261373 for ; Wed, 25 Aug 2021 07:17:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4E02261373 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:52220 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mIn9f-0002Ha-5X for qemu-devel@archiver.kernel.org; Wed, 25 Aug 2021 03:16:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59340) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mIn8a-00083e-6W for qemu-devel@nongnu.org; Wed, 25 Aug 2021 03:15:52 -0400 Received: from smtp-relay-services-1.canonical.com ([185.125.188.251]:41872) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mIn8X-00043O-F7 for qemu-devel@nongnu.org; Wed, 25 Aug 2021 03:15:51 -0400 Received: from loganberry.canonical.com (loganberry.canonical.com [91.189.90.37]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp-relay-services-1.canonical.com (Postfix) with ESMTPSA id E436E3F7C8 for ; Wed, 25 Aug 2021 07:15:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=launchpad.net; s=20210803; t=1629875745; bh=RkN5K+nS5ft00qL6u91ghTrRbdOoPRU72T1VK2N3Dqc=; h=MIME-Version:Content-Type:Date:From:To:Reply-To:References: Message-Id:Subject; b=OmDDkADSMC6BbGTaOp9UUcnHVgE5SfZP3gouNB35acVaeEHWmCRNJGkiBUfgvVvNY 4grv6yM2BdIU4mFpBLT4P1wBXelneImfUt7F/IeoQT0gZ2SmjPD0dDOV7ig1qYBLGd Eov9xh8Eh0WL1wsmXhZKgETDVoR7ST8RDedyFS4whJNKc/F8IeKcZQztHMZ3uKqMJP bennqkd/lTZjqJVnwmx+yrmDLUhqPbBchxBKIqfzhPobbSbUFF6GQQqG0N1S3AQ+DI gGPdplosO0maWJVOL1/SFq88h2930IAPSSn/qL+xaibHBq8o8le03ENUoARrG0kMeq YjkhZs97i8Bxg== Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id E64C42E81A2 for ; Wed, 25 Aug 2021 07:15:43 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Wed, 25 Aug 2021 07:06:45 -0000 From: Thomas Huth <1926759@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Fix Released; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: arm X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: muhui pmaydell th-huth X-Launchpad-Bug-Reporter: JIANG Muhui (muhui) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <161978229375.10342.16262082750544447119.malonedeb@gac.canonical.com> Message-Id: <162987520671.15880.16740500274416093662.launchpad@gac.canonical.com> Subject: [Bug 1926759] Re: WFI instruction results in unhandled CPU exception X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="7edb2d45353e030166106ae05838b77ab406edcd"; Instance="production" X-Launchpad-Hash: d22860e0f07336dd25987db50a15c19ea682aa21 Received-SPF: pass client-ip=185.125.188.251; envelope-from=noreply@launchpad.net; helo=smtp-relay-services-1.canonical.com X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1926759 <1926759@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" ** Changed in: qemu Status: Fix Committed =3D> Fix Released --=20 You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1926759 Title: WFI instruction results in unhandled CPU exception Status in QEMU: Fix Released Bug description: Hi I refer to the WFI instruction. The bytecode is 0xe320f003. After the execution, qemu exit with the following crash log. qemu: unhandled CPU exception 0x10001 - aborting R00=3D00000001 R01=3D40800b34 R02=3D40800b3c R03=3D000102ec R04=3D00010a28 R05=3D00010158 R06=3D00087460 R07=3D00010158 R08=3D00000000 R09=3D00000000 R10=3D00085b7c R11=3D408009f4 R12=3D40800a08 R13=3D408009f0 R14=3D0001057c R15=3D000102f8 PSR=3D60000010 -ZC- A usr32 qemu:handle_cpu_signal received signal outside vCPU context @ pc=3D0x7f5c= 21d0fa12 WFI aims to enter a low-power state and wait for interrupt. The raised exception seems not a right behavior. I can provide a testcase if you needed. Many thanks. Regards Muhui To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1926759/+subscriptions