From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 8D4E0801 for ; Sat, 29 Mar 2025 02:02:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743213739; cv=none; b=t4PB4nBhT5sj1ZCJpObQg8LFZLlu6h9Xu3Rrdy3qouu2+fkZm7QrJFi2KKNFJCJu94//TfErRsBGxm5uH5hRyLFj3kQP0GxxztZAdRYs1ItM4XndOpvQTRjciZ22w30SOaVt8toXZuJvjQinbywrxfCKw9ufbCz9X3uAn7R4kKQ= 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=209.85.166.207 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-f207.google.com with SMTP id e9e14a558f8ab-3d458e61faaso27339065ab.0 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=JrI1JydOAjjzwJ+KvEr3LE5cPTRrOTlvCom7xzkwXfTr22hI2bzbWw+eXb40Ga2Ed0 8GsngQ3PpmLDSGAehsNc7PPcLjo796wEepPYSVv8hr9gHPIOJ/0SX69ZdaAhk+IP7VVP DrJH+4oATh614epMyHYyOv8M4o8gFPH1SpIanFZiDhtLucfNGvoez3jkQ4hjMDJ0RdQx 1CFmHf35fMZ+2xYrG+E11ZutMqG8RzxCfua3XxyNHEkGc6Jv+TZ5rddQuY/fVVQ9Vr/R 0Oa3Eb1FrpyA4ICVwfw5I/FANnoHW92pK7jYKqjXq4iCqEyzYidTemgtlePWfosR38wK pXXA== X-Forwarded-Encrypted: i=1; AJvYcCUEIY6Flt+nZ9E1hnUksnRaojod5ezzCZ+XHZd/uYrJkpNADzDak1L+jMZCbqW9uCDc2H2L85x0a4wW3g==@vger.kernel.org X-Gm-Message-State: AOJu0YwLXm8/P0gmAlcQ654meq9NFkJczDVkpgjr4j3jy66eZcFKShrz Vh+BzMm86xrObN8g2QWz/WdCPd9hZDwJ4cRh+kPY7yufY4bZzTRzwcPi9e7GArXdgCYD8Gi2b90 +AyVFxfvc8BUzgLOIUCZy75YW+tO4zihE5xerZgd/bK8G+GZZ3f+aZiU= X-Google-Smtp-Source: AGHT+IGYPTYrXVhdHfZfT3ymkJ40LOxZViBHlIvGGCGh2BLckLTaIJTEI7fCi/XX1HgFnN2Py5yzsoziyrwM5gkeLXEXzIPb7M02 Precedence: bulk X-Mailing-List: linux-block@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 >