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 272ADC433EF for ; Tue, 3 May 2022 11:49:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234279AbiECLwk (ORCPT ); Tue, 3 May 2022 07:52:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57834 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234879AbiECLwg (ORCPT ); Tue, 3 May 2022 07:52:36 -0400 Received: from mail-oi1-x231.google.com (mail-oi1-x231.google.com [IPv6:2607:f8b0:4864:20::231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 465D335A92 for ; Tue, 3 May 2022 04:49:04 -0700 (PDT) Received: by mail-oi1-x231.google.com with SMTP id y63so17896413oia.7 for ; Tue, 03 May 2022 04:49:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=bSXV9PrUUGhVycOu/J4fBj5chKdIrO0Ql5olYi0vSd8=; b=EhLk4QD8o470moC0OQtXUJEkeGOuhJP7m3BdSFzrKvpKeHc++CQ5VcBNB8p+t/+ULb mUs0X7+NoyUX71r4F4Q6AqvPde/whddEC8nQgV7/xuf543eAWAourHoKkPFOJIVkJ7f5 y5S8nlT5aC3a9dDgieTz47gxlMOYr7Fq+aor/UlSZpj5j4euCtAGzUU6xKKogQ7B2GID bCDIgFY52vnw19sjxzyI8JFWMW3iwMEo4+N/DPmGXgTUmP0vrhPGU2Yb7CNN3YJ0BJxk v0UUrXC5KaM/A6D9gMwaP6XrN3FgYA8EFuKmgSEuQVmzC+EFHcPsMnGdc4JYv7c99/Go txgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=bSXV9PrUUGhVycOu/J4fBj5chKdIrO0Ql5olYi0vSd8=; b=QUOXAaoNX5pHafe5xb9DrXSJ0C1HPp+y6PSmr7boDAkT7JBzJD9Xhr5WE8uDbzuL9c yFLAmKB5xnhlPwYjxQ07sO3bdq9fCnnJ5gj/ct7/cIkvlnRyyi+hdZO2IlUOAE0R2Kuh PFXuMrvv1bGUex1BREObzuZUALNtAJK8BadAnhKHygkI3YvTHvXUcDSAIWJA+jdySGdn ncjbeT1AouiU+6iWTasByULoTYzWSPK47iLTt/lFBEbFiG6jxnUwXoZbNyKlgvNyHXxT cYSWXr32TTChwyZKdjiZuf1XjcQhEpx/X/Z0nprt/I/lMSqGp7DyhJb0Mx2r0ZNzas0a kYDg== X-Gm-Message-State: AOAM531u8/NkqmkP95HXzu5mzIhUwX3UZjrld80FPjJailfhF3yeECFQ 4M82I0UhtP5bnZ8OuxYjqBWusmsLGyCXqXyWrJdvCQ== X-Google-Smtp-Source: ABdhPJwyBTRJk8+J4ioWmZvVzAmOxgN9NvzBheRx+KThLSEpiOI0+072NTxNv0o0eTMZHbWGo3hi4tpUZTNUUEX+OPQ= X-Received: by 2002:a05:6808:f0f:b0:326:29af:dd2d with SMTP id m15-20020a0568080f0f00b0032629afdd2dmr1587521oiw.211.1651578543310; Tue, 03 May 2022 04:49:03 -0700 (PDT) MIME-Version: 1.0 References: <000000000000264b2a05d44bca80@google.com> <00000000000070561105dbd91673@google.com> In-Reply-To: <00000000000070561105dbd91673@google.com> From: Dmitry Vyukov Date: Tue, 3 May 2022 13:48:52 +0200 Message-ID: Subject: Re: [syzbot] WARNING in cpuset_write_resmask To: syzbot Cc: cgroups@vger.kernel.org, changbin.du@intel.com, christian.brauner@ubuntu.com, davem@davemloft.net, edumazet@google.com, hannes@cmpxchg.org, hkallweit1@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, lizefan.x@bytedance.com, longman@redhat.com, mkoutny@suse.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tj@kernel.org, yajun.deng@linux.dev Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, 4 Apr 2022 at 21:25, syzbot wrote: > > syzbot suspects this issue was fixed by commit: > > commit d068eebbd4822b6c14a7ea375dfe53ca5c69c776 > Author: Michal Koutn=C3=BD > Date: Fri Dec 17 15:48:54 2021 +0000 > > cgroup/cpuset: Make child cpusets restrict parents on v1 hierarchy > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D142f17f770= 0000 > start commit: e5313968c41b Merge branch 'Split bpf_sk_lookup remote_por= t.. > git tree: bpf-next > kernel config: https://syzkaller.appspot.com/x/.config?x=3Dc40b67275bfe2= a58 > dashboard link: https://syzkaller.appspot.com/bug?extid=3D568dc81cd20b72d= 4a49f > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D13bb97ce700= 000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D12062c8e70000= 0 > > If the result looks correct, please mark the issue as fixed by replying w= ith: > > #syz fix: cgroup/cpuset: Make child cpusets restrict parents on v1 hierar= chy > > For information about bisection process see: https://goo.gl/tpsmEJ#bisect= ion Based on commit subject looks reasonable: #syz fix: cgroup/cpuset: Make child cpusets restrict parents on v1 hierarch= y