From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 53F9C6FDA for ; Mon, 21 Aug 2023 16:36:59 +0000 (UTC) Received: from mail-pg1-f208.google.com (mail-pg1-f208.google.com [209.85.215.208]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E9BEAFF for ; Mon, 21 Aug 2023 09:36:57 -0700 (PDT) Received: by mail-pg1-f208.google.com with SMTP id 41be03b00d2f7-565aee93236so3803452a12.1 for ; Mon, 21 Aug 2023 09:36:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692635817; x=1693240617; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=DscXzbPNxTBR1mFGaAB02zyy+OW3MXcEY6WXJZDd5nU=; b=KKafzYcfCPr7j0+IEEkA1gmZlcQCbsTy8uQWPE5HSfFhbrD0HX1Cl6H9mOL9La9tGz gB76t4PuWnTZve17coTgBSw/LdBXTPsO/d9dAVhvsK+kJXZGsvhwoLxJx0m1hlq/VzoS 6tmPoliNoQyh0eFsSUPOpV0Kdn6wR8RTQs4wYrpUXSdG23UlQwAaVPmsG/CHTVQAAC9P Pa6Kxo7Tp/ILRoz7qXjTQbQF/OZ+mSbOPhx4RseLvBxV/gpxLl8i49mh1AgJO6M/WETI q7wGE0X2d3VRB5Oc5ZkIJCk/SXgMP+Of8cBe4bTp71L/JQqO79hny4sVHAXBZ09A3+Mo trNA== X-Gm-Message-State: AOJu0YyubxXO/GChfDLa+ul6lKYuvqjh+rF1SC/TG/VxWOIeuRFw9yxP OTb2Fn+ZkHFdYgVC6wcgv66YOxizo21RFV3a+gvjLr5Lci/k X-Google-Smtp-Source: AGHT+IEQDWXwjb92oMzfXVoJdYwEHSi8DF11A7NLabTRacYoPPK2B/zbPpb4aoA/KqQaIFuvq1P2bXDHwug+ycWqbGfLzVMcjuKK Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a63:a319:0:b0:565:e467:ef5e with SMTP id s25-20020a63a319000000b00565e467ef5emr1099865pge.5.1692635817459; Mon, 21 Aug 2023 09:36:57 -0700 (PDT) Date: Mon, 21 Aug 2023 09:36:57 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a249880603717c15@google.com> Subject: [syzbot] [net?] [wireless?] INFO: task hung in reg_process_self_managed_hints From: syzbot To: bigeasy@linutronix.de, davem@davemloft.net, edumazet@google.com, johannes@sipsolutions.net, kerneljasonxing@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Hello, syzbot found the following issue on: HEAD commit: d4ddefee5160 Merge tag 'arm64-fixes' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1653bc65a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=aa796b6080b04102 dashboard link: https://syzkaller.appspot.com/bug?extid=1f16507d9ec05f64210a compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e59507a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16cd6137a80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6187f26c7496/disk-d4ddefee.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8bb63089fdb5/vmlinux-d4ddefee.xz kernel image: https://storage.googleapis.com/syzbot-assets/1579fb12e27b/bzImage-d4ddefee.xz The issue was bisected to: commit d15121be7485655129101f3960ae6add40204463 Author: Paolo Abeni Date: Mon May 8 06:17:44 2023 +0000 Revert "softirq: Let ksoftirqd do its job" bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=115fece3a80000 final oops: https://syzkaller.appspot.com/x/report.txt?x=135fece3a80000 console output: https://syzkaller.appspot.com/x/log.txt?x=155fece3a80000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1f16507d9ec05f64210a@syzkaller.appspotmail.com Fixes: d15121be7485 ("Revert "softirq: Let ksoftirqd do its job"") INFO: task syz-executor296:5042 blocked for more than 143 seconds. Not tainted 6.5.0-rc6-syzkaller-00200-gd4ddefee5160 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor296 state:D stack:24336 pid:5042 ppid:5038 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 wiphy_lock include/net/cfg80211.h:5776 [inline] reg_process_self_managed_hints+0x78/0x170 net/wireless/reg.c:3181 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup