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S390 does not support the perf_event_open system call for attribute type PERF_TYPE_BREAKPOINT. This results in test failure for test 22: [root@s8360046 perf]# ./perf test 22 22: Watchpoint : 22.1: Read Only Watchpoint : FAILED! 22.2: Write Only Watchpoint : FAILED! 22.3: Read / Write Watchpoint : FAILED! 22.4: Modify Watchpoint : FAILED! [root@s8360046 perf]# Add s390 support to avoid these tests being executed on s390 platform: [root@s8360046 perf]# ./perf test 22 [root@s8360046 perf]# ./perf test -v 22 22: Watchpoint : Disabled [root@s8360046 perf]# Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Link: http://lkml.kernel.org/r/20180928105335.67179-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.