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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB0CBC38A2D for ; Tue, 25 Oct 2022 08:13:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232134AbiJYINY (ORCPT ); Tue, 25 Oct 2022 04:13:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46236 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231248AbiJYINX (ORCPT ); Tue, 25 Oct 2022 04:13:23 -0400 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAA52B1B8E for ; Tue, 25 Oct 2022 01:13:22 -0700 (PDT) Received: by mail-io1-f69.google.com with SMTP id a14-20020a6b660e000000b006bd37975cdfso5886002ioc.10 for ; Tue, 25 Oct 2022 01:13:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=XLOp7xpgqPZjm6Drc0YPdjqhCtFFQFhL8IDoFDZdLjo=; b=4RiT8XL/F3XRVzrVrINVWfkiGlSAY1Qo+B2LnmAb+MZUOz6+lvATwBdkspYoJ880dk yJ6vizyDzf8m/kV+p3j7rDI1UZgXtF9lXzFT0U4Vlqt7yVxHQONl5V3Ngm+6UtGnz+Fs iV5g0C8jPTLyZ9nztcMD+CEJkpx5FGbT9V0cWetjxqxDD0hPFGLSA1Bm5VEvt5efqMz8 cXETRNhXD1Qh9KuXwNQuLijkxU/ekBRh435JjcSZsrAeNoRsiETULyD00jWSMzGsSQ4h MQNxgWmll0GoCoek7vAeHQJKEfPZiXJGEk12V1cvreVQVRADRhE+7XUwhWZfam60oc6M oc8A== X-Gm-Message-State: ACrzQf3lZ3Ec32vv0EfLIzodKOAL7ZRNKx2+FBx8WGaVwgfn0ZbJF4aM XvZdMRdr4R6Y+ozYSKQmw8CbxpfNcqB/9v45hBroU+CSiUan X-Google-Smtp-Source: AMsMyM4XiLnN5t8Bj6/3TPw7JseGjX9MDMSgbvsmnFxG/h0l9Jtw3SIO5KcTa1gvq3Au7NCP0fBPN7tgoKOlegG9hAQYlHrUFeMj MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a2a:b0:2fc:2163:5072 with SMTP id g10-20020a056e021a2a00b002fc21635072mr22508672ile.121.1666685602121; Tue, 25 Oct 2022 01:13:22 -0700 (PDT) Date: Tue, 25 Oct 2022 01:13:22 -0700 In-Reply-To: <20221025015726.2835-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000444f7905ebd77b9e@google.com> Subject: Re: [syzbot] INFO: rcu detected stall in sys_newfstatat (4) From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4081 } 2627 jiffies s: 2677 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: a7038524 Merge tag 'perf_urgent_for_v6.1_rc2' of git:/.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=11c5b8d6880000 kernel config: https://syzkaller.appspot.com/x/.config?x=4789759e8a6d5f57 dashboard link: https://syzkaller.appspot.com/bug?extid=1c02a56102605204445c compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=13074bc2880000