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In __cmd_record(), when receiving SIGINT(ctrl + c), a 'done' flag will be set and the event list will be disabled by evlist__disable() once. While in auxtrace_record.read_finish(), the related events will be enabled again, if they are continuous, the recording seems to be endless. If the cs_etm event is disabled, we don't enable it again here. Note: This patch is NOT tested since i don't have such a machine with coresight feature, but the code seems buggy same as arm-spe and intel-pt. Tester notes: Thanks for looping, Adrian. Applied this patch and tested with CoreSight on juno board, it works well. Signed-off-by: Wei Li <liwei391@huawei.com> Reviewed-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Tested-by: Leo Yan <leo.yan@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Tan Xiaojun <tanxiaojun@huawei.com> Cc: stable@vger.kernel.org # 5.4+ Link: http://lore.kernel.org/lkml/20200214132654.20395-4-adrian.hunter@intel.com [ahunter: removed redundant 'else' after 'return'] Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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| 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.