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e76e69611e
Consider reaching task pt_regs graceful unwinder termination. Task pt_regs itself never contains a valid state to which a task might return within the kernel context (user task pt_regs is a special case). Since we already avoid printing user task pt_regs and in most cases we don't even bother filling task pt_regs psw and r15 with something reasonable simply skip task pt_regs altogether. With this change unwind_error() now accurately represent whether unwinder reached task pt_regs successfully or failed along the way. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.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.