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GET /api/1.1/patches/2232011/?format=api
{ "id": 2232011, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2232011/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260502073924.99965-1-atrajeev@linux.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.1/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/" }, "msgid": "<20260502073924.99965-1-atrajeev@linux.ibm.com>", "date": "2026-05-02T07:39:23", "name": "[V3,1/2] powerpc tools perf: Initialize error code in auxtrace_record_init function", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "f4b8b1973afaea02837e2c67f4e6607b73bf2fd7", "submitter": { "id": 90290, "url": "http://patchwork.ozlabs.org/api/1.1/people/90290/?format=api", "name": "Athira Rajeev", "email": "atrajeev@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260502073924.99965-1-atrajeev@linux.ibm.com/mbox/", "series": [ { "id": 502514, "url": "http://patchwork.ozlabs.org/api/1.1/series/502514/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=502514", "date": "2026-05-02T07:39:23", "name": "[V3,1/2] powerpc tools perf: Initialize error code in auxtrace_record_init function", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/502514/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2232011/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2232011/checks/", "tags": {}, "headers": { "Return-Path": "\n <linuxppc-dev+bounces-20378-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ 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dis=none) header.from=linux.ibm.com;\n dkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=IHeGCvdB; dkim-atps=neutral;\n spf=pass (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n envelope-from=atrajeev@linux.ibm.com;\n receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:date:from:message-id:mime-version\n\t:subject:to; s=pp1; bh=kuHqVdlej+Yn0HOXIpjPZZdn1xMOEqKbsgmm1UXRw\n\tMU=; b=IHeGCvdBRPF5yNTkkXD+5XUV61qAA08Q5YVwGz93HJgAQ9OwuAYn6Hw5n\n\tp2EOataiNFdzgEzuzE8v7556q+nNLlpmoq1Hyy0Atf5baxwZCFhH+4eXIiXL4rT4\n\tN8aX8lS4Yy/sa77aSAZVR2ZC+LA2T6RJT2Trr6vcRpAtgituP1Ees3aCLHZ5vJ7q\n\tFH0x98lCDoyATPWAAs2DLP72y78JEesXJNdjDlP5R4MlX9v2HL06EpITyHDSrIwA\n\tG2KNaqvGJYHaSak1dl77W6EVAJdG395QlgNZ93K1vovFE6mYAK+alQt4yN+DCO8H\n\tsgtXGd3MY5hXcspSEh2zWb8+BnROA==", "From": "Athira Rajeev <atrajeev@linux.ibm.com>", "To": "acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com,\n mpetlan@redhat.com, tmricht@linux.ibm.com, maddy@linux.ibm.com,\n irogers@google.com, namhyung@kernel.org", "Cc": "linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,\n atrajeev@linux.ibm.com, hbathini@linux.vnet.ibm.com,\n Tejas.Manhas1@ibm.com, Tanushree.Shah@ibm.com, shivani@linux.ibm.com", "Subject": "[PATCH V3 1/2] powerpc tools perf: Initialize error code in\n auxtrace_record_init function", "Date": "Sat, 2 May 2026 13:09:23 +0530", "Message-Id": "<20260502073924.99965-1-atrajeev@linux.ibm.com>", "X-Mailer": "git-send-email 2.39.5 (Apple Git-154)", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Proofpoint-Reinject": "loops=2 maxloops=12", "X-Proofpoint-ORIG-GUID": "lw-988zIJr5QU8gl66kiA5tnWNY3MCsF", "X-Proofpoint-GUID": "xDSIgA-yTN_XAIv3DgRf4hiiHfe4eeVb", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNTAyMDA3MyBTYWx0ZWRfX/AcJJDisEpPs\n NXzKo6qG33ApHSPy4TbfjDCDuZsEoYpPvRkXV2EF0KcLZs/zFKcQSjiU3O1y2mpAMa/QHFnAeSp\n Vskd+vck1L1gj/VdCZcmRxAVbVC6aGD/lRVsZgh9hPDfWvKWxIwNSXNsFRjpIRA5RW99O5B0BDo\n 01BoiRVuJVTR0VhaU8tuySeIEjO2l2TAatbirI26Gy+yTNFk0xAgFE+TbpejiW3kCA/nrBn5M3o\n se8wKvwvIwUsp6BPox4lwryhbYxNHMp7QnKnm/ywcskAkn0DoHDlVCsZ6ph+CO9jtadq0DpRUl1\n cD7F/6dn4tR6zfso20dIn8Yuqmbim5W6b4gy/7PQd26EobN7CaDjpmxsR/3ocXoPydCA8koREmu\n yg2RrRZwxr4jOsnZPc5jUSMRmpwnPHrnbIJtbgHzUhFRR/BTDP9IpvL4PRTMcv49Vl49i3A+aRW\n pWwDDGB2Y93DTioJmwQ==", "X-Authority-Analysis": "v=2.4 cv=UbFhjqSN c=1 sm=1 tr=0 ts=69f5aa3d cx=c_pps\n a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17\n a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=UYfmDeaf6v5XVjAx5qsA:9", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-05-02_02,2026-04-30_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n clxscore=1015 spamscore=0 lowpriorityscore=0 malwarescore=0 suspectscore=0\n adultscore=0 priorityscore=1501 bulkscore=0 phishscore=0 impostorscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605020073", "X-Spam-Status": "No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tRCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "perf trace record fails some cases in powerpc\n\n # ./perf test \"perf trace record and replay\"\n 128: perf trace record and replay : FAILED!\n\n # ./perf trace record sleep 1\n # echo $?\n 32\n\nThis is happening because of non-zero err value from\nauxtrace_record__init() function.\n\n static int record__auxtrace_init(struct record *rec)\n {\n int err;\n\n if ((rec->opts.auxtrace_snapshot_opts || rec->opts.auxtrace_sample_opts)\n && record__threads_enabled(rec)) {\n pr_err(\"AUX area tracing options are not available in parallel streaming mode.\\n\");\n return -EINVAL;\n }\n\n if (!rec->itr) {\n rec->itr = auxtrace_record__init(rec->evlist, &err);\n if (err)\n return err;\n }\n\nHere \"int err\" is not initialised. The code expects \"err\" to be set\nfrom auxtrace_record__init() function.\n\nUpdate auxtrace_record__init() in arch/powerpc/util/auxtrace.c to clear\nerr value in the beginning.\n\n- Clear err value in beginning of function. Any fail later will\nset appropriate return code to err.\n- Even if we haven't found any event for auxtrace, perf record\nshould continue for other events. NULL return\nwill indicate that there is no auxtrace record initialized.\n- Not having \"err\" set here will affect monitoring of other events\nalso because perf record will fail seeing random value in err.\n\nSet err to -EINVAL before invoking auxtrace_record__init() in\nbuiltin-record.c\n\nWith the fix,\n\n # ./perf trace record sleep 1\n [ perf record: Woken up 2 times to write data ]\n [ perf record: Captured and wrote 0.033 MB perf.data (228 samples) ]\n\nFixes: 1dbfaf94cf66 (\"perf powerpc: Add basic CONFIG_AUXTRACE support for VPA pmu on powerpc\")\nSigned-off-by: Athira Rajeev <atrajeev@linux.ibm.com>\n---\nChangelog:\nv1 -> v2\nAddressed review comment from Adrian:\n- Set err to -EINVAL before invoking auxtrace_record__init() in\n builtin-record.c\n- Added kernel-doc to auxtrace_record__init() in tools/perf/util/auxtrace.c\nAddressed review comment from Namhyung:\n- Added fixes tag\n\n tools/perf/arch/powerpc/util/auxtrace.c | 6 ++++++\n tools/perf/builtin-record.c | 1 +\n 2 files changed, 7 insertions(+)", "diff": "diff --git a/tools/perf/arch/powerpc/util/auxtrace.c b/tools/perf/arch/powerpc/util/auxtrace.c\nindex e39deff6c857..4600a1661b4f 100644\n--- a/tools/perf/arch/powerpc/util/auxtrace.c\n+++ b/tools/perf/arch/powerpc/util/auxtrace.c\n@@ -71,6 +71,12 @@ struct auxtrace_record *auxtrace_record__init(struct evlist *evlist,\n \tstruct evsel *pos;\n \tint found = 0;\n \n+\t/*\n+\t * Set err value to zero here. Any fail later\n+\t * will set appropriate return code to err.\n+\t */\n+\t*err = 0;\n+\n \tevlist__for_each_entry(evlist, pos) {\n \t\tif (strstarts(pos->name, \"vpa_dtl\")) {\n \t\t\tfound = 1;\ndiff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c\nindex 4a5eba498c02..708825747af5 100644\n--- a/tools/perf/builtin-record.c\n+++ b/tools/perf/builtin-record.c\n@@ -865,6 +865,7 @@ static int record__auxtrace_init(struct record *rec)\n \t}\n \n \tif (!rec->itr) {\n+\t\terr = -EINVAL;\n \t\trec->itr = auxtrace_record__init(rec->evlist, &err);\n \t\tif (err)\n \t\t\treturn err;\n", "prefixes": [ "V3", "1/2" ] }