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This reverts commit0a8de364ff. Shachar reported that Vagrant (https://www.vagrantup.com/), which is very popular tool to manage fleet of VMs stopped to work after commit citied in Fixes line. The issue appears while using Vagrant to manage nested VMs. The steps are: * create vagrant file * vagrant up * vagrant halt (VM is created but shut down) * vagrant up - fail Vagrant up stdout: Bringing machine 'player1' up with 'libvirt' provider... ==> player1: Creating shared folders metadata... ==> player1: Starting domain. ==> player1: Domain launching with graphics connection settings... ==> player1: -- Graphics Port: 5900 ==> player1: -- Graphics IP: 127.0.0.1 ==> player1: -- Graphics Password: Not defined ==> player1: -- Graphics Websocket: 5700 ==> player1: Waiting for domain to get an IP address... ==> player1: Waiting for machine to boot. This may take a few minutes... player1: SSH address: 192.168.123.61:22 player1: SSH username: vagrant player1: SSH auth method: private key ==> player1: Attempting graceful shutdown of VM... ==> player1: Attempting graceful shutdown of VM... ==> player1: Attempting graceful shutdown of VM... player1: Guest communication could not be established! This is usually because player1: SSH is not running, the authentication information was changed, player1: or some other networking issue. Vagrant will force halt, if player1: capable. ==> player1: Attempting direct shutdown of domain... Fixes:0a8de364ff("tcp: no longer abort SYN_SENT when receiving some ICMP") Closes: https://lore.kernel.org/all/MN2PR12MB44863139E562A59329E89DBEB982A@MN2PR12MB4486.namprd12.prod.outlook.com Signed-off-by: Shachar Kagan <skagan@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/14459261ea9f9c7d7dfb28eb004ce8734fa83ade.1704185904.git.leonro@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.