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6012b82020
When copying the EXTRA context our calculation of the amount of data we need to copy is incorrect, we only calculate the amount of data needed within uc_mcontext.__reserved, not taking account of the fixed portion of the context. Add in the offset of the reserved data so that we copy everything we should. This will only cause test failures in cases where the last context in the EXTRA context is smaller than the missing data since we don't currently validate any of the register data and all the buffers we copy into are statically allocated so default to zero meaning that if we walk beyond the end of what we copied we'll encounter what looks like a context with magic and length both 0 which is a valid terminator record. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230201-arm64-kselftest-full-extra-v1-1-93741f32dd29@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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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.