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Commit019cbd4a4f("drm/nouveau: Initialize GEM object before TTM object") introduced a subtle change in how the buffer allocation size is handled. Prior to that change, the size would get aligned to at least a page, whereas after that change a non-page-aligned size would get passed through unmodified. This ultimately causes a BUG_ON() to trigger in drm_gem_private_object_init() and crashes the system. Fix this by restoring the code that align the allocation size. Fixes:019cbd4a4f("drm/nouveau: Initialize GEM object before TTM object") Reported-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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.