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=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 CA1AFC433B4 for ; Fri, 30 Apr 2021 09:24:01 +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 6F0C761352 for ; Fri, 30 Apr 2021 09:24:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6F0C761352 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41952 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lcPNQ-0007Fk-Iq for qemu-devel@archiver.kernel.org; Fri, 30 Apr 2021 05:24:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47994) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lcPHO-0000qr-Ec for qemu-devel@nongnu.org; Fri, 30 Apr 2021 05:17:46 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:50424) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lcPHL-0006jO-6i for qemu-devel@nongnu.org; Fri, 30 Apr 2021 05:17:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1619774261; 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: in-reply-to:in-reply-to:references:references; bh=7urHHONh9IDXDyQKb0aGY/wID91MoVJ4Eh7HYtbgL0o=; b=Uw1S8UEjyKTT0dIyuAXnz1pbiU3BqCZI2YLH3unDzZL2WQg71RTMxVTQr8jkoPVsr43wcK R+zB5hSFjIeNRF+yd5MtSycMQamFn7doOE4TyZoNNnnZEawgxj8InIBtRSLh6wqp0ko2yf fCO+jRU1wjqQtmi31ZjQediD867xARw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-532-KDNu90wyOjacR69hXsrvIQ-1; Fri, 30 Apr 2021 05:17:39 -0400 X-MC-Unique: KDNu90wyOjacR69hXsrvIQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DDC51107ACF2; Fri, 30 Apr 2021 09:17:37 +0000 (UTC) Received: from merkur.fritz.box (ovpn-114-197.ams2.redhat.com [10.36.114.197]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C481A77F1D; Fri, 30 Apr 2021 09:17:29 +0000 (UTC) Date: Fri, 30 Apr 2021 11:17:28 +0200 From: Kevin Wolf To: qemu-block@nongnu.org Subject: Re: [PATCH v2] vhost-user-blk: Fail gracefully on too large queue size Message-ID: References: <20210413165654.50810-1-kwolf@redhat.com> MIME-Version: 1.0 In-Reply-To: <20210413165654.50810-1-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.22, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: raphael.norwitz@nutanix.com, qemu-devel@nongnu.org, stefanha@redhat.com, mst@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Am 13.04.2021 um 18:56 hat Kevin Wolf geschrieben: > virtio_add_queue() aborts when queue_size > VIRTQUEUE_MAX_SIZE, so > vhost_user_blk_device_realize() should check this before calling it. > > Simple reproducer: > > qemu-system-x86_64 \ > -chardev null,id=foo \ > -device vhost-user-blk-pci,queue-size=4096,chardev=foo > > Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935014 > Signed-off-by: Kevin Wolf Thanks for the review, applied to the block branch. Kevin