Hello,

This is a fix of 'perf kvm stat live' crash when it tries
to parse events that have been already overwritten by the kernel.

Patches
- 1/2 adds an option to copy events when they are pushed to the samples queue.  
The patch is based on the patch by David Ahern 
(https://lkml.org/lkml/2013/9/6/388)
- 2/2 enables the copying for perf kvm stat live.

Changes in v2:
  - the option to copy events is now a part of ordered_events
  - use memdup() instead malloc()/memcpy()
  - events alocations are under the report.queue-size limit

Previous thread: https://lkml.org/lkml/2014/9/18/353

Thanks!

Alexander Yarygin (2):
  perf tools: Add option to copy events when queueing
  perf kvm stat live: Enable events copying

 tools/perf/builtin-kvm.c         |  1 +
 tools/perf/util/ordered-events.c | 41 ++++++++++++++++++++++++++++++++++++----
 tools/perf/util/ordered-events.h | 10 +++++++++-
 tools/perf/util/session.c        |  5 ++---
 4 files changed, 49 insertions(+), 8 deletions(-)

-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to