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 X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54B0AC433ED for ; Wed, 19 May 2021 14:02:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2C21461074 for ; Wed, 19 May 2021 14:02:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346861AbhESODh (ORCPT ); Wed, 19 May 2021 10:03:37 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:55205 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240179AbhESODf (ORCPT ); Wed, 19 May 2021 10:03:35 -0400 Received: by mail-il1-f200.google.com with SMTP id h1-20020a056e021d81b02901bb694b89faso12319616ila.21 for ; Wed, 19 May 2021 07:02:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=lal3/tKMtazEhUHfuImVZ2YUGJYVN1EU9s1K0h98qkM=; b=EeiX+ulIzZnTUjBtDSy2JTeSI5Rivo2OTns91QrkL20UlRCsW6MtwPeTL7KCFK53tM P3K4CpKcqK/LaLS3kOV4/rgGwGKIZI2JSnedPc3X93z2o8yGtGNi2Z37ZK+4Xcr2ZB8d gPjhU3fuIIprexC3nCt/PIx5b0bUF/VuLxbRFmBqbJlq7phFo/9Y9P9rVKPEBB0I84R4 RItS/rl7s2BYeIv4UvMy7lk2JWHG0QY7UnHiAqj7UXj7U0DK+czJDeBNmyO/O/Sdps3K HCfy2fLNMCWx5xTFGub1sxYaZEy+ukTwT509juX+wGIEEmYrOJQxbZE+YUFltbE++gdx pdAA== X-Gm-Message-State: AOAM530m+X3UOuuUJSH1PywNvrzcU0lDfUuFn1iSzQ+/7Gd8DPfEnpwk fMhkQwQAD+Cj0WIzLAwgcV8b0W9QqREKhP6HbgFGiorp1dmK X-Google-Smtp-Source: ABdhPJx68/imrEk8Fcy60c6Jcvo06HohCne8PwT1U+gOUUdAcrqetRjvEcdTf2J/ISwqscCdaxAs1v7d4mwvWsc2SSLm28qFgjA3 MIME-Version: 1.0 X-Received: by 2002:a5e:a806:: with SMTP id c6mr9378305ioa.180.1621432935818; Wed, 19 May 2021 07:02:15 -0700 (PDT) Date: Wed, 19 May 2021 07:02:15 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002aad2505c2af46c2@google.com> Subject: [syzbot] WARNING: locking bug in complete_all From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, mcgrof@kernel.org, rafael@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 found the following issue on: HEAD commit: 25a12987 Merge tag 'trace-v5.13-rc1' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16b425fdd00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ec0e727d62342a37 dashboard link: https://syzkaller.appspot.com/bug?extid=0a94f55b21945de250e6 compiler: Debian clang version 11.0.1-2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0a94f55b21945de250e6@syzkaller.appspotmail.com ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(!test_bit(class_idx, lock_classes_in_use)) WARNING: CPU: 1 PID: 14609 at kernel/locking/lockdep.c:4872 __lock_acquire+0x2741/0x6040 kernel/locking/lockdep.c:4872 Modules linked in: CPU: 1 PID: 14609 Comm: syz-executor.1 Not tainted 5.13.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x2741/0x6040 kernel/locking/lockdep.c:4872 Code: 1c 00 00 c7 44 24 28 00 00 00 00 48 c7 c7 20 94 2e 8a 48 c7 c6 00 c5 2e 8a 31 c0 e8 29 16 ea ff 49 b8 00 00 00 00 00 fc ff df <0f> 0b e9 d5 1b 00 00 0f 0b e9 e4 ec ff ff e8 2c 8c 5e 08 c7 44 24 RSP: 0018:ffffc9000217efe0 EFLAGS: 00010046 RAX: 81e596e45e282400 RBX: ffffffffab400119 RCX: 0000000000040000 RDX: ffffc900095c9000 RSI: 0000000000002fee RDI: 0000000000002fef RBP: ffffc9000217f370 R08: dffffc0000000000 R09: ffffed1017363f24 R10: ffffed1017363f24 R11: 0000000000000000 R12: ffff88802ab6df58 R13: ffffc9000217f300 R14: ffff88802ab6d4c0 R15: ffff88802ab6df78 FS: 00007fd2642f3700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000568000 CR3: 0000000099e41000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x17f/0x720 kernel/locking/lockdep.c:5512 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xb3/0x100 kernel/locking/spinlock.c:159 complete_all+0x14/0x70 kernel/sched/completion.c:63 __fw_state_set drivers/base/firmware_loader/firmware.h:121 [inline] fw_state_aborted drivers/base/firmware_loader/firmware.h:126 [inline] __fw_load_abort drivers/base/firmware_loader/fallback.c:98 [inline] kill_pending_fw_fallback_reqs+0x1e8/0x290 drivers/base/firmware_loader/fallback.c:119 fw_pm_notify+0x5d/0xe0 drivers/base/firmware_loader/main.c:1450 notifier_call_chain kernel/notifier.c:83 [inline] notifier_call_chain_robust kernel/notifier.c:118 [inline] blocking_notifier_call_chain_robust+0x13b/0x380 kernel/notifier.c:302 pm_notifier_call_chain_robust+0x27/0x50 kernel/power/main.c:87 snapshot_open+0x18a/0x260 kernel/power/user.c:75 misc_open+0x346/0x3c0 drivers/char/misc.c:141 chrdev_open+0x53b/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7cb/0x1010 fs/open.c:826 do_open fs/namei.c:3361 [inline] path_openat+0x28e6/0x39b0 fs/namei.c:3494 do_filp_open+0x221/0x460 fs/namei.c:3521 do_sys_openat2+0x124/0x460 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_openat fs/open.c:1219 [inline] __se_sys_openat fs/open.c:1214 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1214 do_syscall_64+0x3f/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd2642f3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffcd0d0c31f R14: 00007fd2642f3300 R15: 0000000000022000 --- 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.