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 379ABC4332F for ; Thu, 2 Nov 2023 00:14:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234290AbjKBAOL (ORCPT ); Wed, 1 Nov 2023 20:14:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230285AbjKBAOK (ORCPT ); Wed, 1 Nov 2023 20:14:10 -0400 Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02960119 for ; Wed, 1 Nov 2023 17:14:04 -0700 (PDT) Received: by mail-oi1-f197.google.com with SMTP id 5614622812f47-3b5665e00b6so627635b6e.2 for ; Wed, 01 Nov 2023 17:14:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698884043; x=1699488843; 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=3o8M4olUhxGuYhfUSjcCSpJU5SY7A9yJ4TSgZavfZUU=; b=txw5qokwXrkTl+V6yjOCmndyPJTgQ00UxM228V7SR4a885CCOtkQCdc+WzRT//peUO Hx7aPpGWrSWD/UBVNe7MXK/iQpE2+aruV2wBYBaGrqAEAa7SZKGDA0f8NBrzF9qIJyzd 807oeiMO2gsDS/84asJWOECDIv6QIlfIvfQa/o2JkDN0gwuRL4PwP+0h3B7bgZWVKYRx l0/k14UQ8yEPcqY0M175ggnwpw/lxsdJWtoNDyf5WPOLm+AcxipkEkH2pdDnF8M2jEZK ONS29fc0KUiaBsCxyRjJOEi2nHjI91odKxYoDpoclir6SSgSGWPmmLDHsj/z4ThPn7Jy i5QA== X-Gm-Message-State: AOJu0YwJt2Zd4jBZipBE7A6lLJxZG/7aK0vgxvsSS/fQICZysy1WIMt9 9m2FPN39hSrUEF2q8JgC8hcQoRbN+GwD05VqqtFIqMPeIDqR X-Google-Smtp-Source: AGHT+IGXujbYdoaOwMiOFafFIW9sSBBYTm1Pp7ERXnBxyhbhAcfk6UQLTv/cxWX2Xmxo1xLz6z1fbF2B0KrsJKybb/11d1grAeua MIME-Version: 1.0 X-Received: by 2002:a05:6808:1304:b0:3ae:15b6:3292 with SMTP id y4-20020a056808130400b003ae15b63292mr6713187oiv.4.1698884043406; Wed, 01 Nov 2023 17:14:03 -0700 (PDT) Date: Wed, 01 Nov 2023 17:14:03 -0700 In-Reply-To: <0000000000003495bf060724994a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ec03e20609204362@google.com> Subject: Re: [syzbot] [net?] [usb?] INFO: rcu detected stall in worker_thread (9) From: syzbot To: admini@syzkaller.appspotmail.com, bpf@vger.kernel.org, davem@davemloft.net, edumazet@google.com, gregkh@linuxfoundation.org, hdanton@sina.com, horms@kernel.org, jiri@nvidia.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, rafael@kernel.org, syzkaller-bugs@googlegroups.com, twuufnxlz@gmail.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit c2368b19807affd7621f7c4638cd2e17fec13021 Author: Jiri Pirko Date: Fri Jul 29 07:10:35 2022 +0000 net: devlink: introduce "unregistering" mark and use it during devlinks iteration bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1758e1e3680000 start commit: 1c8b86a3799f Merge tag 'xsa441-6.6-tag' of git://git.kerne.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=14d8e1e3680000 console output: https://syzkaller.appspot.com/x/log.txt?x=10d8e1e3680000 kernel config: https://syzkaller.appspot.com/x/.config?x=11e478e28144788c dashboard link: https://syzkaller.appspot.com/bug?extid=225bfad78b079744fd5e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155614de680000 Reported-by: syzbot+225bfad78b079744fd5e@syzkaller.appspotmail.com Fixes: c2368b19807a ("net: devlink: introduce "unregistering" mark and use it during devlinks iteration") For information about bisection process see: https://goo.gl/tpsmEJ#bisection