From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 0ADF3183CD6 for ; Tue, 5 Nov 2024 07:15:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730790906; cv=none; b=KyB8OG/UUV6XpaYPMNgNaj1NmfATHmWS0xnYoR0PJ78f2iuo7gbh7ZoO8klgFTuHbz3CMkxpAVBVMDuskES/dzp/XzGDzc8D0GidPq6LG7okiTI3gU2NnIVEdiU6lJDnM0qfdePq9vG5dSaUNHq+50gJ2zmAdreCy4K7x2gGWQg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730790906; c=relaxed/simple; bh=AX0wnbzOVWBFJ0z+wYiz1cnR1V/qBBfEQHs42pi4lsI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=O0p8vGoDuDD//wePs3tbC7uJVG/q9o5Lkn6XtjnPCFQRx88PTU/u3sgTTq/ankF+usig2RB66qtYErcMcU0L1vfjb/AsJl3GsCX4/mnFeLsNYLTe4wUbwz0LWpDj2HzWv6DF1Sa9P07tHyW27bkRr1+rfrNDDW9GEHfmcBP6+VA= 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=209.85.166.199 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-f199.google.com with SMTP id e9e14a558f8ab-3a6add3a52eso35278715ab.0 for ; Mon, 04 Nov 2024 23:15:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730790904; x=1731395704; 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=udJxfntUylZegD12LXtHmkhlsFp21Pyjgi/GZHXO0Q0=; b=fgtY6UU8ZGwec81pctjvhpRXvI1fL1ZZ6Zo3lrfKziJBEfqV6EfMxnlDqy3tI0HF3m 1LKyDdjJNFQiEdsvAtNOyllmlZgiIoLqjRCprp67Nx0/zzTRRbd+d++FNK9iycgFalG1 bmGFVYH9OxvpTJYgw+7Ru5zy2oY4KThlTBqmVBH0/5BWasNC/JYOwVoGDUjRcYEWdWs3 IrKQeYN7xxk42bvT88Cyfcl3tNYaKuA6KnOqeHyLpEpdfovMXnRhE2JY9bKY/9xnLaXf PXRaeKJAQt/vAupySvRu3xRjt5XXftG+kM/IBkVc0+fixAR5Ij+2k8eP9BOOQ/Jt6maM EJKg== X-Forwarded-Encrypted: i=1; AJvYcCVtlqbenUEGOMaRASZ2MzWsMc5Gyki7w/jgAWh31zNCFIgZ9UxOofrCUINTScPwRNVazBsP/v6d850qbMw=@vger.kernel.org X-Gm-Message-State: AOJu0YzjNWHVVAwM6oLZutm5QUIyRThdru3goa4b668vI0wU63BP9qMK BPDpN1oXHPAUMgg+woBl3siG/1JWgRhihXlZbZgh9Dk2GIVMSMxfmOLaqpvXWU3HeeeyI3Wctpl kp8dqVzriDb5TCNL2u9YXrAShxQ5JBkBy4+FhIN3fOMtHUnQVhEEyWVs= X-Google-Smtp-Source: AGHT+IFENoTKKV4sJFxJHInjEOnTWgVx2bbjvJL+998wFc4aiBPfOT49lkWevLcZGh8gALCc97t8JyVFflWcXBzoaOwhSWirGlcN Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1387:b0:3a0:c8b8:1b0f with SMTP id e9e14a558f8ab-3a6afeb07f8mr149769545ab.2.1730790904212; Mon, 04 Nov 2024 23:15:04 -0800 (PST) Date: Mon, 04 Nov 2024 23:15:04 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6729c5f8.050a0220.2edce.1503.GAE@google.com> Subject: Re: [syzbot] [block?] [trace?] possible deadlock in blk_trace_ioctl From: syzbot To: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, ming.lei@redhat.com, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+a3c16289c8c99b02cac1@syzkaller.appspotmail.com Tested-by: syzbot+a3c16289c8c99b02cac1@syzkaller.appspotmail.com Tested on: commit: 72697401 block: don't verify IO lock for freeze/unfree.. git tree: https://github.com/ming1/linux.git for-next console output: https://syzkaller.appspot.com/x/log.txt?x=14e8ed5f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=dfea72efa3e2aef2 dashboard link: https://syzkaller.appspot.com/bug?extid=a3c16289c8c99b02cac1 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.