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 92C17A23 for ; Mon, 20 Jan 2025 06:18:04 +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=1737353886; cv=none; b=ILrCB0kSIkAsPOS2CmsxYQ23sW0Rs/GplLbTVxS8SDCOVpaSzIX0ItBFQCdnS88AvI8JyR81YgB4q0GOoh0zl+V3VPXL9ZPmIIog2DcFVjekO3hFhVwKpq4ombyYoazLuZ9orX/YBIOvSitsxFrayXxwOJH27+rgkvmo65J5tX0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737353886; c=relaxed/simple; bh=GMQPFqvqked+eY1iOA3unhKzw6OEBhQVi/TebLxB1Dk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=OOQfTZXyX7VRwFe/Wlee+cTZQ+eZzZsous+e+Mt45Af6KJQm336+l4TCdlEPeC8PiAobK5VaARcMCxHj3HHoyjHugoIkcZTwHgcpISWdhaCIanb/vZb88fmdVLlGSrWe1+vyMYYe7Lk6+QIeuLtIQI0TRkimwVzpNbj72nzmzUE= 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-3ac98b49e4dso31789265ab.1 for ; Sun, 19 Jan 2025 22:18:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1737353883; x=1737958683; 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=FfFNQFBBDbk35XhnHG5b/QslRTBXlj2ffKlfBjTwMko=; b=SHM1Kr4oXylRUKtxP0kQuAWeEg/kqZA3jTI1sqU36ZpFLqq96KZlp7cyqCiaDt1UpA 9xy/dm6TdmlDN1t3YGHNSa58QWQ8kV9y6NR2OR0tttb5+wfB0+iMY9EONVDP2UQ59As+ Q22PlG23kvCCSQWrsB/s1QpzMYfe2qQUlhtuukFdsVC325rn9PwMazd2ilANmYjXLdiJ oSPEo4os+m7SkKyaQmiQrQvw30U3ZpJuFtKtpLOcL60yKO00llV9dEX4Z3XBa4eRMA/I D6JkFJ3nDeam1Y4vDZsknFECYOzHtiNWU+SYWs3IIsUEn4TElJYK1CKQuoGgKEaczZtQ aXmA== X-Forwarded-Encrypted: i=1; AJvYcCWew+BA6TVXUgPyZLJFTWdVh3/mt6T1W7CMW2y00wX2qeIFsevpKMjKT3LfoBuU/y/V1ustv0QxCV4eSpc=@vger.kernel.org X-Gm-Message-State: AOJu0YzUGFlqRi+dxsc50HpCqtC8poyJ4x7C2RyrefT8hXpJ3GUKNFpD Mb32+CNabEQ2L08+8TbN4PXXKyCEoGLuXnYHgJYwOqVfgkddP8wRejOIXaMIblTGnCF44s6oHvI f/Ub6naY9wDpL1jMJ5ihdYOE48YEEbuP4qkuo9pZeoNSJNixuUE9xky8= X-Google-Smtp-Source: AGHT+IHwgHCvSVgduKwc8BeC/i3zUK5jz+MAx8Kng4X8f9upssbOCrucYYBdBGQwz6+IcuoljA/AQee9qLTVmuP8mpBfOxvfoPoC Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d1d:b0:3bd:c7f5:41d2 with SMTP id e9e14a558f8ab-3cf743a9063mr98147595ab.4.1737353883750; Sun, 19 Jan 2025 22:18:03 -0800 (PST) Date: Sun, 19 Jan 2025 22:18:03 -0800 In-Reply-To: <0000000000004228140621a87013@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <678dea9b.050a0220.303755.0068.GAE@google.com> Subject: Re: [syzbot] [serial?] possible deadlock in tty_buffer_flush (3) From: syzbot To: elic@nvidia.com, gregkh@linuxfoundation.org, jasowang@redhat.com, jirislaby@kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, mst@redhat.com, parav@nvidia.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit a3c06ae158dd6fa8336157c31d9234689d068d02 Author: Parav Pandit Date: Tue Jan 5 10:32:03 2021 +0000 vdpa_sim_net: Add support for user supported devices bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=101452b0580000 start commit: 595523945be0 Merge tag 'devicetree-fixes-for-6.13-2' of gi.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=121452b0580000 console output: https://syzkaller.appspot.com/x/log.txt?x=141452b0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d1cb4a1f148c0861 dashboard link: https://syzkaller.appspot.com/bug?extid=52cf91760dcb1dac6376 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=164091f8580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17903fc4580000 Reported-by: syzbot+52cf91760dcb1dac6376@syzkaller.appspotmail.com Fixes: a3c06ae158dd ("vdpa_sim_net: Add support for user supported devices") For information about bisection process see: https://goo.gl/tpsmEJ#bisection