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GET /api/patches/806587/?format=api
{ "id": 806587, "url": "http://patchwork.ozlabs.org/api/patches/806587/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1503928405-19960-1-git-send-email-s1seetee@linux.vnet.ibm.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1503928405-19960-1-git-send-email-s1seetee@linux.vnet.ibm.com>", "list_archive_url": null, "date": "2017-08-28T13:53:25", "name": "[v3] qemu crashes when a negative number used for 'maxcpus'", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "9a78db7ad4db4e03f873f211993bd50e5de20f4e", "submitter": { "id": 72241, "url": "http://patchwork.ozlabs.org/api/people/72241/?format=api", "name": "seeteena", "email": "s1seetee@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1503928405-19960-1-git-send-email-s1seetee@linux.vnet.ibm.com/mbox/", "series": [ { "id": 176, "url": "http://patchwork.ozlabs.org/api/series/176/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=176", "date": "2017-08-28T13:53:25", "name": "[v3] qemu crashes when a negative number used for 'maxcpus'", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/176/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/806587/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/806587/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xgtYF27tMz9sMN\n\tfor <incoming@patchwork.ozlabs.org>;\n\tMon, 28 Aug 2017 23:54:25 +1000 (AEST)", "from localhost ([::1]:39953 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dmKUh-0004Sk-6d\n\tfor incoming@patchwork.ozlabs.org; Mon, 28 Aug 2017 09:54:23 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:34634)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <s1seetee@linux.vnet.ibm.com>) id 1dmKUB-0004Qq-3B\n\tfor qemu-devel@nongnu.org; Mon, 28 Aug 2017 09:53:52 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <s1seetee@linux.vnet.ibm.com>) id 1dmKU5-0006ZF-6r\n\tfor qemu-devel@nongnu.org; Mon, 28 Aug 2017 09:53:51 -0400", "from mx0a-001b2d01.pphosted.com ([148.163.156.1]:48308)\n\tby eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <s1seetee@linux.vnet.ibm.com>)\n\tid 1dmKU4-0006Yn-UH\n\tfor qemu-devel@nongnu.org; Mon, 28 Aug 2017 09:53:45 -0400", "from pps.filterd (m0098410.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv7SDrNsN011012\n\tfor <qemu-devel@nongnu.org>; Mon, 28 Aug 2017 09:53:43 -0400", "from e23smtp08.au.ibm.com (e23smtp08.au.ibm.com [202.81.31.141])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2cmef8p01x-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <qemu-devel@nongnu.org>; Mon, 28 Aug 2017 09:53:43 -0400", "from localhost\n\tby e23smtp08.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <qemu-devel@nongnu.org> from <s1seetee@linux.vnet.ibm.com>;\n\tMon, 28 Aug 2017 23:53:40 +1000", "from d23relay10.au.ibm.com (202.81.31.229)\n\tby e23smtp08.au.ibm.com (202.81.31.205) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tMon, 28 Aug 2017 23:53:38 +1000", "from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96])\n\tby d23relay10.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n\tv7SDrb1m40894664; Mon, 28 Aug 2017 23:53:37 +1000", "from d23av01.au.ibm.com (localhost [127.0.0.1])\n\tby d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id\n\tv7SDrbRn021510; Mon, 28 Aug 2017 23:53:37 +1000", "from oc1548405160.ibm.com ([9.79.182.7])\n\tby d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id\n\tv7SDrWQc021365\n\t(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256\n\tverify=NO); Mon, 28 Aug 2017 23:53:35 +1000" ], "From": "Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com>", "To": "qemu-devel@nongnu.org, qemu-ppc@nongnu.org, famz@redhat.com,\n\tpbonzini@redhat.com", "Date": "Mon, 28 Aug 2017 19:23:25 +0530", "X-Mailer": "git-send-email 1.8.3.1", "X-TM-AS-MML": "disable", "x-cbid": "17082813-0048-0000-0000-0000025A2BD5", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17082813-0049-0000-0000-0000480E6C9F", "Message-Id": "<1503928405-19960-1-git-send-email-s1seetee@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-08-28_07:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1708280223", "X-detected-operating-system": "by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy]", "X-Received-From": "148.163.156.1", "Subject": "[Qemu-devel] [PATCH v3] qemu crashes when a negative number used\n\tfor 'maxcpus'", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<http://lists.nongnu.org/archive/html/qemu-devel/>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "s1seetee@linux.vnet.ibm.com", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "---Steps to Reproduce---\n\nWhen passed a negative number to 'maxcpus' parameter, Qemu aborts\nwith a core dump.\n\nRun the following command with maxcpus argument as negative number\n\nppc64-softmmu/qemu-system-ppc64 --nographic -vga none -machine\npseries,accel=kvm,kvm-type=HV -m size=200g -device virtio-blk-pci,\ndrive=rootdisk -drive file=/home/images/pegas-1.0-ppc64le.qcow2,\nif=none,cache=none,id=rootdisk,format=qcow2 -monitor telnet\n:127.0.0.1:1234,server,nowait -net nic,model=virtio -net\nuser -redir tcp:2000::22 -device nec-usb-xhci -smp 8,cores=1,\nthreads=1,maxcpus=-12\n\n(process:12149): GLib-ERROR **: gmem.c:130: failed to allocate\n 18446744073709550568 bytes\n\nTrace/breakpoint trap\n\nReported-by: R.Nageswara Sastry <rnsastry@linux.vnet.ibm.com>\nSigned-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com>\nReviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>\n---\n vl.c | 5 ++++-\n 1 file changed, 4 insertions(+), 1 deletion(-)", "diff": "diff --git a/vl.c b/vl.c\nindex 8e247cc..fb45b6d 100644\n--- a/vl.c\n+++ b/vl.c\n@@ -1244,7 +1244,10 @@ static void smp_parse(QemuOpts *opts)\n }\n \n max_cpus = qemu_opt_get_number(opts, \"maxcpus\", cpus);\n-\n+ if (max_cpus <= 0) {\n+ error_report(\"Invalid max_cpus : %d\", max_cpus);\n+ exit(1);\n+ }\n if (max_cpus < cpus) {\n error_report(\"maxcpus must be equal to or greater than smp\");\n exit(1);\n", "prefixes": [ "v3" ] }