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Some "TSC fall back to HPET" messages appear on systems having more than 2 NUMA nodes: clocksource: timekeeping watchdog on CPU168: hpet read-back delay of 4296200ns, attempt 4, marking unstable The "hpet" here is misleading the clocksource watchdog is really doing repeated reads of "hpet" in order to check for unrelated delays. Therefore, print the name of the clocksource under test, prefixed by "wd-" and suffixed by "-wd", for example, "wd-tsc-wd". Signed-off-by: Yunying Sun <yunying.sun@intel.com> Signed-off-by: Paul E. McKenney <paulmck@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.