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GET /api/1.2/patches/833370/?format=api
{ "id": 833370, "url": "http://patchwork.ozlabs.org/api/1.2/patches/833370/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20171102140501.87671-12-gwalbon@linux.vnet.ibm.com/", "project": { "id": 15, "url": "http://patchwork.ozlabs.org/api/1.2/projects/15/?format=api", "name": "Ubuntu Kernel", "link_name": "ubuntu-kernel", "list_id": "kernel-team.lists.ubuntu.com", "list_email": "kernel-team@lists.ubuntu.com", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20171102140501.87671-12-gwalbon@linux.vnet.ibm.com>", "list_archive_url": null, "date": "2017-11-02T14:05:00", "name": "[Artful,11/12] powerpc/perf: Add ___GFP_NOWARN flag to alloc_pages_node()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "497e196178e6eff00e6c0f470024410cffc386fb", "submitter": { "id": 71662, "url": "http://patchwork.ozlabs.org/api/1.2/people/71662/?format=api", "name": "Gustavo Walbon", "email": "gwalbon@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20171102140501.87671-12-gwalbon@linux.vnet.ibm.com/mbox/", "series": [ { "id": 11509, "url": "http://patchwork.ozlabs.org/api/1.2/series/11509/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=11509", "date": "2017-11-02T14:04:50", "name": "Backport for Power9 Nest PMU Instrumentation", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/11509/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/833370/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/833370/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<kernel-team-bounces@lists.ubuntu.com>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.ubuntu.com\n\t(client-ip=91.189.94.19; helo=huckleberry.canonical.com;\n\tenvelope-from=kernel-team-bounces@lists.ubuntu.com;\n\treceiver=<UNKNOWN>)", "Received": [ "from huckleberry.canonical.com (huckleberry.canonical.com\n\t[91.189.94.19])\n\tby ozlabs.org (Postfix) with ESMTP id 3ySRgf4cSYz9t2f;\n\tFri, 3 Nov 2017 01:05:34 +1100 (AEDT)", "from localhost ([127.0.0.1] helo=huckleberry.canonical.com)\n\tby huckleberry.canonical.com with esmtp (Exim 4.86_2)\n\t(envelope-from <kernel-team-bounces@lists.ubuntu.com>)\n\tid 1eAG7e-0002Qo-N3; Thu, 02 Nov 2017 14:05:30 +0000", "from mx0b-001b2d01.pphosted.com ([148.163.158.5]\n\thelo=mx0a-001b2d01.pphosted.com)\n\tby huckleberry.canonical.com with esmtps\n\t(TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2)\n\t(envelope-from <gwalbon@linux.vnet.ibm.com>) id 1eAG7c-0002MT-Pr\n\tfor kernel-team@lists.ubuntu.com; Thu, 02 Nov 2017 14:05:28 +0000", "from pps.filterd (m0098420.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tvA2E4T7f103120\n\tfor <kernel-team@lists.ubuntu.com>; Thu, 2 Nov 2017 10:05:27 -0400", "from e11.ny.us.ibm.com (e11.ny.us.ibm.com [129.33.205.201])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2e0264jymq-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <kernel-team@lists.ubuntu.com>; Thu, 02 Nov 2017 10:05:27 -0400", "from localhost\n\tby e11.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <kernel-team@lists.ubuntu.com> from <gwalbon@linux.vnet.ibm.com>; \n\tThu, 2 Nov 2017 10:05:26 -0400", "from b01cxnp23032.gho.pok.ibm.com (9.57.198.27)\n\tby e11.ny.us.ibm.com (146.89.104.198) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tThu, 2 Nov 2017 10:05:25 -0400", "from b01ledav005.gho.pok.ibm.com (b01ledav005.gho.pok.ibm.com\n\t[9.57.199.110])\n\tby b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP\n\tid vA2E5OC334603098; Thu, 2 Nov 2017 14:05:24 GMT", "from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 43759AE054;\n\tThu, 2 Nov 2017 10:06:11 -0400 (EDT)", "from localhost (unknown [9.85.138.60])\n\tby b01ledav005.gho.pok.ibm.com (Postfix) with ESMTP id AE596AE052;\n\tThu, 2 Nov 2017 10:06:10 -0400 (EDT)" ], "From": "Gustavo Walbon <gwalbon@linux.vnet.ibm.com>", "To": "kernel-team@lists.ubuntu.com", "Subject": "[Artful][PATCH 11/12] powerpc/perf: Add ___GFP_NOWARN flag to\n\talloc_pages_node()", "Date": "Thu, 2 Nov 2017 12:05:00 -0200", "X-Mailer": "git-send-email 2.13.3", "In-Reply-To": "<20171102140501.87671-1-gwalbon@linux.vnet.ibm.com>", "References": "<20171102140501.87671-1-gwalbon@linux.vnet.ibm.com>", "X-TM-AS-GCONF": "00", "x-cbid": "17110214-2213-0000-0000-000002356DA6", "X-IBM-SpamModules-Scores": "", "X-IBM-SpamModules-Versions": "BY=3.00007997; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000239; SDB=6.00940090; UDB=6.00474019;\n\tIPR=6.00720346; \n\tBA=6.00005666; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017836;\n\tXFM=3.00000015; UTC=2017-11-02 14:05:26", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17110214-2214-0000-0000-0000580A8777", "Message-Id": "<20171102140501.87671-12-gwalbon@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-11-02_05:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tpriorityscore=1501\n\tmalwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0\n\tclxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0\n\tclassifier=spam adjust=0 reason=mlx scancount=1\n\tengine=8.0.1-1707230000\n\tdefinitions=main-1711020178", "X-BeenThere": "kernel-team@lists.ubuntu.com", "X-Mailman-Version": "2.1.20", "Precedence": "list", "List-Id": "Kernel team discussions <kernel-team.lists.ubuntu.com>", "List-Unsubscribe": "<https://lists.ubuntu.com/mailman/options/kernel-team>,\n\t<mailto:kernel-team-request@lists.ubuntu.com?subject=unsubscribe>", "List-Archive": "<https://lists.ubuntu.com/archives/kernel-team>", "List-Post": "<mailto:kernel-team@lists.ubuntu.com>", "List-Help": "<mailto:kernel-team-request@lists.ubuntu.com?subject=help>", "List-Subscribe": "<https://lists.ubuntu.com/mailman/listinfo/kernel-team>,\n\t<mailto:kernel-team-request@lists.ubuntu.com?subject=subscribe>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "kernel-team-bounces@lists.ubuntu.com", "Sender": "\"kernel-team\" <kernel-team-bounces@lists.ubuntu.com>" }, "content": "From: Anju T Sudhakar <anju@linux.vnet.ibm.com>\n\nBugLink: https://bugs.launchpad.net/bugs/1481347\n\nStack trace output during a stress test:\n [ 4.310049] Freeing initrd memory: 22592K\n[ 4.310646] rtas_flash: no firmware flash support\n[ 4.313341] cpuhp/64: page allocation failure: order:0, mode:0x14480c0(GFP_KERNEL|__GFP_ZERO|__GFP_THISNODE), nodemask=(null)\n[ 4.313465] cpuhp/64 cpuset=/ mems_allowed=0\n[ 4.313521] CPU: 64 PID: 392 Comm: cpuhp/64 Not tainted 4.11.0-39.el7a.ppc64le #1\n[ 4.313588] Call Trace:\n[ 4.313622] [c000000f1fb1b8e0] [c000000000c09388] dump_stack+0xb0/0xf0 (unreliable)\n[ 4.313694] [c000000f1fb1b920] [c00000000030ef6c] warn_alloc+0x12c/0x1c0\n[ 4.313753] [c000000f1fb1b9c0] [c00000000030ff68] __alloc_pages_nodemask+0xea8/0x1000\n[ 4.313823] [c000000f1fb1bbb0] [c000000000113a8c] core_imc_mem_init+0xbc/0x1c0\n[ 4.313892] [c000000f1fb1bc00] [c000000000113cdc] ppc_core_imc_cpu_online+0x14c/0x170\n[ 4.313962] [c000000f1fb1bc90] [c000000000125758] cpuhp_invoke_callback+0x198/0x5d0\n[ 4.314031] [c000000f1fb1bd00] [c00000000012782c] cpuhp_thread_fun+0x8c/0x3d0\n[ 4.314101] [c000000f1fb1bd60] [c0000000001678d0] smpboot_thread_fn+0x290/0x2a0\n[ 4.314169] [c000000f1fb1bdc0] [c00000000015ee78] kthread+0x168/0x1b0\n[ 4.314229] [c000000f1fb1be30] [c00000000000b368] ret_from_kernel_thread+0x5c/0x74\n[ 4.314313] Mem-Info:\n[ 4.314356] active_anon:0 inactive_anon:0 isolated_anon:0\n\ncore_imc_mem_init() at system boot use alloc_pages_node() to get memory\nand alloc_pages_node() throws this stack dump when tried to allocate\nmemory from a node which has no memory behind it. Add a ___GFP_NOWARN\nflag in allocation request as a fix.\n\nSigned-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>\nReported-by: Michael Ellerman <mpe@ellerman.id.au>\nReported-by: Venkat R.B <venkatb3@in.ibm.com>\nSigned-off-by: Michael Ellerman <mpe@ellerman.id.au>\n(cherry-picked from cd4f2b30e5ef7d4bde61eb515372d96e8aec1690)\nSigned-off-by: Gustavo Walbon <gwalbon@linux.vnet.ibm.com>\n---\n arch/powerpc/perf/imc-pmu.c | 8 ++++----\n 1 file changed, 4 insertions(+), 4 deletions(-)", "diff": "diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c\nindex e3a1f65933b5..39a0203fd8a5 100644\n--- a/arch/powerpc/perf/imc-pmu.c\n+++ b/arch/powerpc/perf/imc-pmu.c\n@@ -537,8 +537,8 @@ static int core_imc_mem_init(int cpu, int size)\n \n \t/* We need only vbase for core counters */\n \tmem_info->vbase = page_address(alloc_pages_node(phys_id,\n-\t\t\t\t\t GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE,\n-\t\t\t\t\t get_order(size)));\n+\t\t\t\t\t GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |\n+\t\t\t\t\t __GFP_NOWARN, get_order(size)));\n \tif (!mem_info->vbase)\n \t\treturn -ENOMEM;\n \n@@ -791,8 +791,8 @@ static int thread_imc_mem_alloc(int cpu_id, int size)\n \t\t * free the memory in cpu offline path.\n \t\t */\n \t\tlocal_mem = page_address(alloc_pages_node(phys_id,\n-\t\t\t\t GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE,\n-\t\t\t\t get_order(size)));\n+\t\t\t\t GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |\n+\t\t\t\t __GFP_NOWARN, get_order(size)));\n \t\tif (!local_mem)\n \t\t\treturn -ENOMEM;\n \n", "prefixes": [ "Artful", "11/12" ] }