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GET /api/patches/2217650/?format=api
{ "id": 2217650, "url": "http://patchwork.ozlabs.org/api/patches/2217650/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ltp/patch/20260330100750.858390-1-vasileios.almpanis@virtuozzo.com/", "project": { "id": 59, "url": "http://patchwork.ozlabs.org/api/projects/59/?format=api", "name": "Linux Test Project development", "link_name": "ltp", "list_id": "ltp.lists.linux.it", "list_email": "ltp@lists.linux.it", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260330100750.858390-1-vasileios.almpanis@virtuozzo.com>", "list_archive_url": null, "date": "2026-03-30T10:07:44", "name": "pidns32: fix PID namespace nesting depth off-by-one", "commit_ref": null, "pull_url": null, "state": "needs-review-ack", "archived": false, "hash": "9d25aca17e4d15bbba112a966ae83121a8072624", "submitter": { "id": 92306, "url": "http://patchwork.ozlabs.org/api/people/92306/?format=api", "name": "Vasileios Almpanis", "email": "vasileios.almpanis@virtuozzo.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/ltp/patch/20260330100750.858390-1-vasileios.almpanis@virtuozzo.com/mbox/", "series": [ { "id": 497992, "url": "http://patchwork.ozlabs.org/api/series/497992/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ltp/list/?series=497992", "date": "2026-03-30T10:07:44", "name": "pidns32: fix PID namespace nesting depth off-by-one", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497992/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2217650/comments/", "check": "success", "checks": "http://patchwork.ozlabs.org/api/patches/2217650/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "ltp@lists.linux.it" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "ltp@picard.linux.it" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=lists.linux.it header.i=@lists.linux.it\n header.a=rsa-sha256 header.s=picard header.b=ao5IkwKy;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n secure) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256\n header.s=relay header.b=sl+ryoWq;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=213.254.12.146; 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Mon, 30 Mar 2026 12:07:53 +0200 (CEST)", "from relay.virtuozzo.com (relay.virtuozzo.com [130.117.225.111])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by in-7.smtp.seeweb.it (Postfix) with ESMTPS id 7567F20093D\n for <ltp@lists.linux.it>; Mon, 30 Mar 2026 12:07:53 +0200 (CEST)", "from [130.117.225.5] (helo=dev010.aci.vzint.dev)\n by relay.virtuozzo.com with esmtp (Exim 4.96)\n (envelope-from <vasileios.almpanis@virtuozzo.com>)\n id 1w79V8-0029vd-1b; Mon, 30 Mar 2026 12:07:44 +0200" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; c=relaxed/simple; d=lists.linux.it;\n i=@lists.linux.it; q=dns/txt; s=picard; t=1774865277; h=to : date :\n message-id : mime-version : subject : list-id : list-unsubscribe :\n list-archive : list-post : list-help : list-subscribe : from :\n reply-to : content-type : content-transfer-encoding : sender : from;\n bh=OuZ+OTLtNmTjWO0Lujdn8DsORJhS9wNuZONYZMm6HzY=;\n b=ao5IkwKy/7FTBSDiDObXDpeVzIQfF8914CYVnVsOhUIg1u7xtrLBPHdIS6sZD6MYbXLxY\n WNFNApGxdc7mGr40xz3prOnINr0d8nU2/j7LaPasD4ho0Q7bR2758lfD8IPNeIgQuTFTjmw\n rAItemyS4aI5m/0qbQzcLsXCr4nKsKY=", "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n d=virtuozzo.com; s=relay; h=MIME-Version:Message-ID:Date:Subject:From:\n Content-Type; bh=sePDNAW5dgssgolCZO7X76BkFFlRVH1ZG4MBZgb0qFU=; b=sl+ryoWqWcFL\n 4NrVnbqND4HFNGaSbPdxe0YIrR3DL6lVbZY1pxS6pxYOEdW76eDb2MI3euS2tkoX0K067McAuDlQq\n oTWEq0E9ar0rTQ4TPBxfXuPubHaIyaQbRutvrqupKOPxla/pIHKUOMjmXgODsABMwkCjzx1uViBsg\n fiaX6UhQzHL+B9FoXe5hZOomKuEIbYryU4tsGeNsE67J/h69jcOMkXp9gRLJ14vZbZGx6pkAzrSdq\n SBtrRI4mTmx+KdqnW6ZeCvqrj1BVqIooQtCFsT3LIvCKOFaFIJc24tW/vpWuwId4SwLjuS5DDk4K9\n Jm+1tnP+yHo0oeLTySWfmg==;" ], "To": "ltp@lists.linux.it", "Date": "Mon, 30 Mar 2026 10:07:44 +0000", "Message-ID": "<20260330100750.858390-1-vasileios.almpanis@virtuozzo.com>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "X-Spam-Status": "No, score=0.1 required=7.0 tests=DKIM_SIGNED,DKIM_VALID,\n DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS shortcircuit=no\n autolearn=disabled version=4.0.1", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on in-7.smtp.seeweb.it", "X-Virus-Scanned": "clamav-milter 1.0.9 at in-7.smtp.seeweb.it", "X-Virus-Status": "Clean", "Subject": "[LTP] [PATCH] pidns32: fix PID namespace nesting depth off-by-one", "X-BeenThere": "ltp@lists.linux.it", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "Linux Test Project <ltp.lists.linux.it>", "List-Unsubscribe": "<https://lists.linux.it/options/ltp>,\n <mailto:ltp-request@lists.linux.it?subject=unsubscribe>", "List-Archive": "<http://lists.linux.it/pipermail/ltp/>", "List-Post": "<mailto:ltp@lists.linux.it>", "List-Help": "<mailto:ltp-request@lists.linux.it?subject=help>", "List-Subscribe": "<https://lists.linux.it/listinfo/ltp>,\n <mailto:ltp-request@lists.linux.it?subject=subscribe>", "From": "Vasileios Almpanis via ltp <ltp@lists.linux.it>", "Reply-To": "Vasileios Almpanis <vasileios.almpanis@virtuozzo.com>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it", "Sender": "\"ltp\" <ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it>" }, "content": "The 2023 refactor used tst_atomic_inc() before clone with a zero-initial\ncounter, which only performed 31 CLONE_NEWPID nests while still expecting\nMAXNEST (32). Compare the level to MAXNEST first, then increment and clone,\nso the shared counter runs 0..32 and the chain reaches 32 nested namespaces\nagain.\n\nFixes: 647cfd468c3b (\"Refactor pidns32 test using new LTP API\")\nSigned-off-by: Vasileios Almpanis <vasileios.almpanis@virtuozzo.com>\n---\n testcases/kernel/containers/pidns/pidns32.c | 4 +++-\n 1 file changed, 3 insertions(+), 1 deletion(-)", "diff": "diff --git a/testcases/kernel/containers/pidns/pidns32.c b/testcases/kernel/containers/pidns/pidns32.c\nindex fc9bf0aaa..3a272f569 100644\n--- a/testcases/kernel/containers/pidns/pidns32.c\n+++ b/testcases/kernel/containers/pidns/pidns32.c\n@@ -27,9 +27,11 @@ static pid_t child_func(void)\n {\n \tpid_t cpid = 0;\n \n-\tif (tst_atomic_inc(level) == MAXNEST)\n+\tif (tst_atomic_load(level) == MAXNEST)\n \t\treturn cpid;\n \n+\ttst_atomic_inc(level);\n+\n \tcpid = SAFE_CLONE(&args);\n \tif (!cpid) {\n \t\tchild_func();\n", "prefixes": [] }