From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f205.google.com (mail-il1-f205.google.com [209.85.166.205]) (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 38B513C00 for ; Thu, 17 Apr 2025 00:22:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744849356; cv=none; b=DdNHoeB8t/q7Voh//G40w4KfGbqSfidKjQAy8w2fEYbaP+Xk1LJPQiUWix37Sh8Qhbtl+G3VtEtlW2KJ9LBVtEz+TdVqhaz1FxaYC8ORNV3j/rcpcuZReB2qZB+1T698KCvQQvBmvQ9FSOBVLRNHIKqRwOdQ5+ptdybcDtRGQkY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744849356; c=relaxed/simple; bh=svD0aEDFTX8S2VICiPdHHjm8xw/AGfSa/f98a6+Xi4I=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=SdrNa+oYVNYLfFXU7ICs09WF4aiS4y9tEL4BmAK9ECk99vhoXtAfvNZYinyzo8YBQwDlOFJhAebvDu9JNewRECyC90Ih0BXRYLfJ2I4toeYGfX2efxEa8GnkyYQ/JDD3dkj+OJL2vn9GiCCopgORnwevzIV0kP5i7sZ/LSZgDt0= 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=209.85.166.205 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-f205.google.com with SMTP id e9e14a558f8ab-3d6c613bd79so2762295ab.2 for ; Wed, 16 Apr 2025 17:22:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744849354; x=1745454154; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=cEpwKm3tj+RqZkHblkz9yBygrPVmssWRced9seDC+7I=; b=Tfvq2yZWjfoyhM1J00Ar74WjACz7aNBzwSvuqK/RM4u6Lq5UqA4yQCGUxYPe0qQrdj 4kGvxUqpzs2yzl/ghGj5AVNWNcohgbtCucwBheSQPaL86nBjjSyGTfQRSYLzrvaGlRhN +P6xrnv96nAUBSSmHEFRsHnY0Z09z9KJVJplb526jj+ul8RH55hysOmlIlqMN/m59HQ/ C9U7q9YqkXjVrgzm1ITtCqRqbHBKPMP1irg6vCaioFkyaeDFbGKVJBBef0GLnUwYevQq hm9K1eLdoPDEZFZd50gn7rzkeP9IGmop37HPoiZYHEcQNexdGFfZZ7/wou0dDkZMmS4C D9OQ== X-Gm-Message-State: AOJu0YzrZ5B3YaviabaJH0NgUfL2KL9bl2XGpXsINXb5T7oS46NB/1ej grHllAFD8HJGUjPYGZ/lYLEtxyHIgWJwIBCIQZdgA6wIf9LVKBXTo4m6Rt0FZgzvdrbnqj+22JP q9rpeEVDoTYNpF3UxKQXjK6mZF6oGOM9iYb7H5yif8GTquP2z+x3vT0M+rA== X-Google-Smtp-Source: AGHT+IEvofckmbvFi5fvj1vj/F9A/xh8+gAdXlN6UmYBsPt/mkfgSaFPPeMT+67VOjTc95D06uNMerJ9pO3Xd44dFkCDW2TF/+8R Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1787:b0:3d4:276:9a1b with SMTP id e9e14a558f8ab-3d815b5aef9mr36610315ab.16.1744849354256; Wed, 16 Apr 2025 17:22:34 -0700 (PDT) Date: Wed, 16 Apr 2025 17:22:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <680049ca.050a0220.5cdb3.000a.GAE@google.com> Subject: [syzbot] [trace?] WARNING in tracing_start_tr From: syzbot To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 3bde70a2c827 Merge tag 'v6.15-rc1-smb3-client-fixes' of gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1240cdac580000 kernel config: https://syzkaller.appspot.com/x/.config?x=7a4e108575159039 dashboard link: https://syzkaller.appspot.com/bug?extid=ccdec3bfe0beec58a38d compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/385544917b90/disk-3bde70a2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8e29d15e8394/vmlinux-3bde70a2.xz kernel image: https://storage.googleapis.com/syzbot-assets/2dbcc4712371/bzImage-3bde70a2.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ccdec3bfe0beec58a38d@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6325 at kernel/trace/trace.c:2431 tracing_start_tr.part.0+0x1fc/0x2a0 kernel/trace/trace.c:2431 Modules linked in: CPU: 0 UID: 0 PID: 6325 Comm: syz.2.94 Not tainted 6.15.0-rc1-syzkaller-00301-g3bde70a2c827 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:tracing_start_tr.part.0+0x1fc/0x2a0 kernel/trace/trace.c:2431 Code: 00 0f 85 97 00 00 00 48 83 3d 7f 52 62 0c 00 74 78 e8 28 55 fb ff 4c 89 ff e8 80 dd b2 09 90 e9 d9 fe ff ff e8 15 55 fb ff 90 <0f> 0b 90 c7 83 94 00 00 00 00 00 00 00 e9 c1 fe ff ff e8 ad c2 5f RSP: 0018:ffffc9000f3e7b40 EFLAGS: 00010087 RAX: 000000000001dd6a RBX: ffffffff8e445400 RCX: ffffc9000e2a2000 RDX: 0000000000080000 RSI: ffffffff81bfe7ab RDI: 0000000000000005 RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000000 R12: 1ffff92001e7cf69 R13: 0000000000000283 R14: ffffffff8e4454e0 R15: ffffffff8e445420 FS: 00007f889698f6c0(0000) GS:ffff8881249b9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c430541 CR3: 0000000034dba000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tracing_start_tr kernel/trace/trace.c:9410 [inline] buffer_subbuf_size_write+0x226/0x280 kernel/trace/trace.c:9408 do_loop_readv_writev fs/read_write.c:848 [inline] do_loop_readv_writev fs/read_write.c:833 [inline] vfs_writev+0x6c4/0xdc0 fs/read_write.c:1057 do_writev+0x132/0x330 fs/read_write.c:1101 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8895b8d169 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f889698f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f8895da6160 RCX: 00007f8895b8d169 RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 RBP: 00007f8895c0e990 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8895da6160 R15: 00007ffd37f16b28 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup