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Adrian Hunter 8f5b7e3f41 perf intel-pt: Fix occasional decoding errors when tracing system-wide 
commit 3d918fb13abdbeca7947578f5d7e426eafad7f5e upstream.

In order to successfully decode Intel PT traces, context switch events
are needed from the moment the trace starts. Currently that is ensured
by using the 'immediate' flag which enables the switch event when it is
opened.

However, since commit 86c2786994 ("perf intel-pt: Add support for
PERF_RECORD_SWITCH") that might not always happen. When tracing
system-wide the context switch event is added to the tracking event
which was not set as 'immediate'. Change that so it is.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: 86c2786994 ("perf intel-pt: Add support for PERF_RECORD_SWITCH")
Link: http://lkml.kernel.org/r/1471245784-22580-1-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07 08:32:37 +02:00
..
alpha perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
arm perf build: Add arch arm objects building 2015-02-12 13:13:01 -03:00
arm64 perf tools: Add ARM64 perf_regs_load to support libunwind and enable testing 2015-05-29 12:43:40 -03:00
mips perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
parisc perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
powerpc perf probe ppc64le: Fixup function entry if using kallsyms lookup 2015-05-04 12:43:47 -03:00
s390 perf build: Add arch s390 objects building 2015-02-12 13:20:59 -03:00
sh perf dwarf: Fix potential array out of bounds access 2015-09-01 11:33:48 -03:00
sparc perf dwarf: Fix potential array out of bounds access 2015-09-01 11:33:48 -03:00
x86 perf intel-pt: Fix occasional decoding errors when tracing system-wide 2016-09-07 08:32:37 +02:00
xtensa perf tools xtensa: Add DWARF register names 2015-08-06 16:45:05 -03:00
Build perf build: Add arch x86 objects building 2015-02-12 13:12:01 -03:00
common.c perf env: Rename some leftovers from rename to perf_env 2015-09-14 12:50:20 -03:00
common.h perf env: Rename some leftovers from rename to perf_env 2015-09-14 12:50:20 -03:00