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 967AF8821 for ; Sat, 29 Mar 2025 02:02:17 +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=1743213739; cv=none; b=QjkcAcF5Nd06I99zaPX69W/BAq0tVFW7vAwybZy1+L07FIU05YNY1Pythp3JFLu3ZePbY2RaI+3BhTFW+2ULWel1M/z1kulsZ61y4D15iAOz22pMt8TF4aMaWZEqnq8L1cJfCiEYINoljrGjZuZ24J4xA5/8Bq2vs9IhKan5b20= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743213739; c=relaxed/simple; bh=Qx0FzgTCX3aQ2PIcYG2ILsq37rf8Qh6B4wBb1R0balU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=JDl0oetw7LwNVhQGd3GoeuPchZMyXW1D5rKIJX73TmUUxjf6LhLolI4nA18XSnfrWjDixi/ACcTOYlUJuu3zZRzPizppdsAGxbG431N5TbO5ln/y+8JBzaYSwalx5/ETC1Ype3bo0kElceEoDjwOGBSYDjkAgGLiIYzTLDgkAHQ= 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-3d44a3882a0so25919105ab.1 for ; Fri, 28 Mar 2025 19:02:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743213736; x=1743818536; h=cc: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=FguXTsE+8XhGP7o0QFnNh0+TKzAKTaLyzGQZThRy3NM=; b=JE5O5lfX7dupJX76H39yY8nt5OSOL0y5n25AeYcecadllqhr18jedmDOeyJ5xbShaP hK289nsTij98rwz1AhSUwMkpFaqo1QmS41pCmRGy9KENd26KL9VKLPHdHKDKHHruzxhD e7FCSGps7DUxQQ8Lwss1eRXIBs6tUoAGO8cPvGa9iZe6Jh7E+cRfR7X3EZ1AB6UG4wEq OJCpaLOS0X3A6Gmt0pReBxVDRQi+6Rkb2QQa26pmZdXQ2PSstOSW6i8YsioAm1AkQ925 Rbemncuz+goyJI7cZwLn59zvu5M9w/cWYaKHczmyIeafYyeqiEpxyBg04hbw7LMd6V6o rtMg== X-Forwarded-Encrypted: i=1; AJvYcCU1fKK6HAOnLLhPkKMd1nF5hO1xFVFPoe/O7Ter7V325HC9tJ/Vxq3QuSbBRNwVr6ylEhuRW6Bi5Vm5ZMo=@vger.kernel.org X-Gm-Message-State: AOJu0Yxn1ttwhWfEySQoiDNpQGfH5hEqi4957VP08CVK9euWBjMI28Sv /15pMbgRp1QL14v12PM78nSZSq1TbI7cG5imfdQ5lqF9eLeSMOe0TrdiFP8sZiEccYH1JC/5VrE vfMRTtdPmFLOzRBLYoh3Ruq8vRoqfDgQywUgoTx/BZp/mECkKUmnh/lc= X-Google-Smtp-Source: AGHT+IGYPTYrXVhdHfZfT3ymkJ40LOxZViBHlIvGGCGh2BLckLTaIJTEI7fCi/XX1HgFnN2Py5yzsoziyrwM5gkeLXEXzIPb7M02 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:4401:20b0:3d3:d344:2a1a with SMTP id e9e14a558f8ab-3d5e07c4822mr13365705ab.0.1743213736542; Fri, 28 Mar 2025 19:02:16 -0700 (PDT) Date: Fri, 28 Mar 2025 19:02:16 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67e754a8.050a0220.1547ec.0005.GAE@google.com> Subject: Re: [syzbot] [block?] possible deadlock in elv_iosched_store From: syzbot To: ming.lei@redhat.com Cc: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, ming.lei@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > On Fri, Mar 28, 2025 at 07:37:25AM -0700, syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit: 1a9239bb4253 Merge tag 'net-next-6.15' of git://git.kernel.. >> git tree: upstream >> console output: https://syzkaller.appspot.com/x/log.txt?x=1384b43f980000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=c7163a109ac459a8 >> dashboard link: https://syzkaller.appspot.com/bug?extid=4c7e0f9b94ad65811efb >> 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=178cfa4c580000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11a8ca4c580000 >> >> Downloadable assets: >> disk image: https://storage.googleapis.com/syzbot-assets/fc7dc9f0d9a7/disk-1a9239bb.raw.xz >> vmlinux: https://storage.googleapis.com/syzbot-assets/f555a3ae03d3/vmlinux-1a9239bb.xz >> kernel image: https://storage.googleapis.com/syzbot-assets/55f6ea74eaf2/bzImage-1a9239bb.xz >> >> IMPORTANT: if you fix the issue, please add the following tag to the commit: >> Reported-by: syzbot+4c7e0f9b94ad65811efb@syzkaller.appspotmail.com >> > > ... > >> >> --- >> 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 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 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 > > #syz dup: [syzbot] [block?] possible deadlock in elv_iosched_store Can't dup bug to itself. > > -- > Ming >