There are a few sections in the driver which are not compatible with PREEMPT_RT. They trigger warnings and can lead to deadlocks at runtime. Disable the i915 driver on a PREEMPT_RT enabled kernel. This way PREEMPT_RT itself can be enabled without needing to address the i915 issues first. The RT related patches are still in RT queue and will be handled later. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/YgqmfKhwU5spS069@linutronix.de
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.
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