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Vasily Gorbik 2c7fa8a11c s390/kasan: avoid report in get_wchan
Reading other running task's stack can be a dangerous endeavor. Kasan
stack memory access instrumentation includes special prologue and epilogue
to mark/remove red zones in shadow memory between stack variables. For
that reason there is always a race between a task reading value in other
task's stack and that other task returning from a function and entering
another one generating different red zones pattern.

To avoid kasan reports simply perform uninstrumented memory reads.

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-08-21 12:58:53 +02:00
arch s390/kasan: avoid report in get_wchan 2019-08-21 12:58:53 +02:00
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Documentation Documentation/s390: remove outdated debugging390 documentation 2019-08-21 12:41:43 +02:00
drivers s390: clean .bss before running uncompressed kernel 2019-08-21 12:58:52 +02:00
fs SPDX fixes for 5.3-rc2 2019-07-28 10:00:06 -07:00
include TTY fixes for 5.3-rc2 2019-07-28 10:18:33 -07:00
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Makefile Linux 5.3-rc2 2019-07-28 12:47:02 -07:00
README

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.