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 lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (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 705ACC43458 for ; Mon, 13 Jul 2026 08:58:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wjCUO-0000za-Nl; Mon, 13 Jul 2026 04:58:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wjCUN-0000zS-NX for qemu-devel@nongnu.org; Mon, 13 Jul 2026 04:58:11 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wjCUL-0004zz-Q3 for qemu-devel@nongnu.org; Mon, 13 Jul 2026 04:58:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1783933088; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=i7dMQ141x0RinduAeU3ncrv+YgmT9Eep76DkJyzjvCM=; b=hE6//GVa4RBqZWXiuDbTNjXfZ3QOvIfCManDPMWAheUlUyr5C7Kdsh9q6sUKrRx8H93xki jnd1VyBGQnXALz5bt5YuGCZ/fnS/FnT+Lw4i4nWWPeDOe2X4RoIv5boHsP4W7hCBXTgKiw hsA4kGp7vNhj7N1IxD3xHo6mqbOI+lQ= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-673-LLYYIINoMiyhP6wz6C3eAQ-1; Mon, 13 Jul 2026 04:58:03 -0400 X-MC-Unique: LLYYIINoMiyhP6wz6C3eAQ-1 X-Mimecast-MFC-AGG-ID: LLYYIINoMiyhP6wz6C3eAQ_1783933081 Received: from mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.95]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 6A05E1955DDC; Mon, 13 Jul 2026 08:58:01 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.44.22.4]) by mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A8B7336919; Mon, 13 Jul 2026 08:58:00 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 4C87421E6920; Mon, 13 Jul 2026 10:57:58 +0200 (CEST) From: Markus Armbruster To: Daniel P. =?utf-8?Q?Berrang=C3=A9?= Cc: Peter Maydell , QEMU Developers , Paolo Bonzini , Pedro Barbuda , Mohamed Mediouni , Nicholas Piggin , Harsh Prateek Bora , Cornelia Huck , Eric Farman , Matthew Rosato Subject: Re: what is qemu_system_guest_panicked() for? In-Reply-To: ("Daniel P. =?utf-8?Q?Berrang?= =?utf-8?Q?=C3=A9=22's?= message of "Mon, 13 Jul 2026 09:39:52 +0100") References: Date: Mon, 13 Jul 2026 10:57:58 +0200 Message-ID: <87cxwrtgfd.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.6 on 10.30.177.95 Received-SPF: permerror client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001, T_SPF_PERMERROR=0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Daniel P. Berrang=C3=A9 writes: > On Fri, Jul 10, 2026 at 05:02:53PM +0100, Peter Maydell wrote: [...] >> So I guess my question is, is it OK to mash these two categories of >> "we can't keep running the VM" together, or should we define a new >> one for the "unrecoverable guest error" case, or do we already have >> some better thing to do that I missed? > > IMHO we should NOT be abusing "panicked" for cases which are > not guest OS panics. Point. > Adding new QMP events is cheap and we should do so. Changing the event sent on a certain situation is technically a compatibility break. Would it matter here? > We need > at least a "MCE" event. > > IMHO the "unknown / unexpected" VM exits likely deserve a > different event again. [...]