From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F19E11DFD8F for ; Fri, 12 Sep 2025 21:20:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757712005; cv=none; b=HpF9lN4PFqqOtwsTzdXASLkP6QzmJowmRarCXB4/yTJ7vbWnqfnSr9JTPbi3hD4OCJupWxKtpy+PVtoI4PCmEk1JAlP0vDnaZTwnG+3knB+3CFR9NJP9aNXHsFcFOuf5fYxI68q1bLLRX3DNwo75Qc01BoWgXj/58lkxRbS1tUs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757712005; c=relaxed/simple; bh=s0dLJD1pylmUB6Rp/Wf1ixub+Qwmi7U3q2Fjg7wivlY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=Qx/BSpoekcpFn2qh7vyraWx8lO+d3ikGw8o+vRhaIG01liM0th98nyM0W7ZRMdQt/012v9NFPnkrF5YpDC2udZcXJKzvZUC/rqhw0pgGeiwHfv/geOERmEQmXaQ4FUVxklojAMuoSsUr9MBGqkIcjfWtUmQ5V06klzXt0Q8uIXk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-40194dd544eso32810795ab.2 for ; Fri, 12 Sep 2025 14:20:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757712003; x=1758316803; 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=uJFKxvHGvZZBn62ZAITAiCMsMZxoix2SCcjWo8rn3Ak=; b=jwalxargAI0uObUlCWK3p08s+YpIbJyJ65UzlRWZMVBIP2+Poh+0LdgKNQ7srzc0rO 6LXAUwJqh5MmEP1l9cE8rJjYe0d2YWkeXfrmW6rWaw6s34cPZoDt4ZScWRhU1WHZNmfD VKoWbtzKjdovHcCxIjdcQhVs9WlgmJBkvMNFhl0eSHkGOMtFTTT2fmQaUqVOZDo50bwV LXpjUmn0PzHo5w/OsIFJJ1CnZUvL7kmeKE2TDuswTNVyxePCnlkwl6Lxv9mjh8KV4mQk V0Y5s8sFd5YvlPzhnBns7OahYqPZGwY1T878yXYy4afOsIiBrOc0qwq02bkOaRwK0bMK sdYg== X-Gm-Message-State: AOJu0YwKwAz7VFV5bimaFykT8TKYqwZ5+rE/yFnBK7zrcC3BWiejmFYL aNP59ScD3UScjAIp/SMWmKdRzEW1t+ekfSRGMnkTUOxJLpuMXtxy4HoQ6/jsW9mkRuZ5xafJPxU c8WC762a72/wwtNvXoi/U50RGsAYzLzaCWUFDyW2gCW3TbykdXqh8qeNyWBU= X-Google-Smtp-Source: AGHT+IFvi5GGcWD96sBzCcOS850cF6TH6IvLDMwPvAEctZ3qXB8KaIZqf63/Sle0vsav2XyFmD52RFxe2W9lYOCKxiRMnDw7K+ox Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:214c:b0:40d:e7d8:63fa with SMTP id e9e14a558f8ab-420a4268b84mr62586055ab.26.1757712003181; Fri, 12 Sep 2025 14:20:03 -0700 (PDT) Date: Fri, 12 Sep 2025 14:20:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68c48e83.050a0220.2ff435.0363.GAE@google.com> Subject: Re: [syzbot] [rdma?] WARNING in gid_table_release_one (3) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, yanjun.zhu@linux.dev Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in gid_table_release_one WARNING: CPU: 1 PID: 1342 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 1 PID: 1342 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x346/0x4d0 drivers/infiniband/core/cache.c:886 Modules linked in: CPU: 1 UID: 0 PID: 1342 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 Workqueue: ib-unreg-wq ib_unregister_work RIP: 0010:release_gid_table drivers/infiniband/core/cache.c:806 [inline] RIP: 0010:gid_table_release_one+0x346/0x4d0 drivers/infiniband/core/cache.c:886 Code: e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 3d 41 8b 0e 48 c7 c7 00 46 71 8c 4c 89 e6 44 89 fa e8 3b a5 fa f8 90 <0f> 0b 90 90 e9 e3 fe ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc90004bff908 EFLAGS: 00010246 RAX: 6115427e6ab01100 RBX: ffff88807855c2d8 RCX: ffff888027abbc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 1ffff1100f0ab85b R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa24c R12: ffff8880206a4b40 R13: ffff88807855c200 R14: ffff88801ffd5a00 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff888125d16000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000240 CR3: 000000005e54a000 CR4: 00000000003526f0 Call Trace: ib_device_release+0xd2/0x1c0 drivers/infiniband/core/device.c:509 device_release+0x99/0x1c0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x22b/0x480 lib/kobject.c:737 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Tested on: commit: e5320428 RDMA/rxe: Add logs to find out the root cause git tree: https://github.com/zhuyj/linux.git v6.17_fix_gid_table_release_one console output: https://syzkaller.appspot.com/x/log.txt?x=12829934580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4239c29711f936f dashboard link: https://syzkaller.appspot.com/bug?extid=b0da83a6c0e2e2bddbd4 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Note: no patches were applied.