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Jiri Olsa ceaefcdf2a perf session: Do not fail on processing out of order event 
commit f61ff6c06d upstream.

Linus reported perf report command being interrupted due to processing
of 'out of order' event, with following error:

  Timestamp below last timeslice flush
  0x5733a8 [0x28]: failed to process type: 3

I could reproduce the issue and in my case it was caused by one CPU
(mmap) being behind during record and userspace mmap reader seeing the
data after other CPUs data were already stored.

This is expected under some circumstances because we need to limit the
number of events that we queue for reordering when we receive a
PERF_RECORD_FINISHED_ROUND or when we force flush due to memory
pressure.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1417016371-30249-1-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[zhangzhiqiang: backport to 3.10:
 - adjust context
 - commit f61ff6c06d struct events_stats was defined in tools/perf/util/event.h
   while 3.10 stable defined in tools/perf/util/hist.h.
 - 3.10 stable there is no pr_oe_time() which used for debug.
 - After the above adjustments, becomes same to the original patch:
   f61ff6c06d
]
Signed-off-by: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2015-01-16 06:59:34 -08:00
..
cgroup
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firewire
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hv
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include tools include: Include <linux/compiler.h> from asm/bug.h 2014-01-13 10:14:13 -03:00
lguest
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lib tools lib traceevent: Fix memory leak in pretty_print() 2014-05-31 13:20:27 -07:00
net tools/net/Makefile: Define PACKAGE to fix build problems 2014-03-12 00:07:55 -04:00
nfsd
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perf perf session: Do not fail on processing out of order event 2015-01-16 06:59:34 -08:00
power Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2014-02-02 11:28:48 -08:00
scripts tools lib traceevent: Add global QUIET_CC_FPIC build output 2013-12-19 16:18:10 -03:00
testing userns: Unbreak the unprivileged remount tests 2015-01-08 10:00:50 -08:00
thermal/tmon
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usb tools: ffs-test: fix header values endianess 2014-07-09 11:18:27 -07:00
virtio tools/virtio: add a missing ) 2014-05-13 13:32:48 +02:00
vm
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Makefile ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00