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9af5b8f0ea
This patch adds a dlm functionality to send a raw dlm message to a specific cluster node. This raw message can be build by user space and send out by writing the message to "rawmsg" dlm debugfs file. There is a in progress scapy dlm module which provides a easy build of DLM messages in user space. For example: DLM(h_cmd=3, o_nextcmd=1, h_nodeid=1, h_lockspace=0xe4f48a18, ...) The goal is to provide an easy reproducable state to crash DLM or to fuzz the DLM kernel stack if there are possible ways to crash it. Note: that if the sequence number is zero and dlm version is not set to 3.1 the kernel will automatic will set a right sequence number, otherwise DLM stack testing is not possible. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com> |
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| README | ||
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.