linux/tools/perf
Arnaldo Carvalho de Melo 1c6763cb99 Revert "perf sched: Handle PERF_RECORD_EXIT events"
This reverts commit 0439539f72.

This caused this segfault:

[root@sandy linux]# perf sched rec
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.306 MB perf.data (~57062 samples) ]
perf
[root@sandy linux]# perf sched lat
perf: builtin-sched.c:781: thread_atoms_search: Assertion `!(thread != atoms->thread)' failed.
Aborted (core dumped)
[root@sandy linux]#

Further investigation is needed to check that even with machine__remove_thread()
not really deleting the thread referenced in the PERF_RECORD_EXIT (it goes to
machine->dead_threads, because references may still exist to them in things like
 hist, etc) some event later comes for this dead thread and then
machine__findnew_thread() will create a new thead instance that will not be the
same as the one referenced by work_atoms->thread in thread_atoms_search().

For now just revert this patch to get the 'perf sched lat' back working.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
echo Link: http://lkml.kernel.org/n/tip-`ranpwd -l 24`@git.kernel.org
Link: http://lkml.kernel.org/n/tip-hg4s6e5txiwqe00h8rdg1sin@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01 12:22:34 -03:00
..
arch perf tools: Fix build on non-glibc systems due to libio.h absence 2013-03-15 13:05:13 -03:00
bench perf tools: Fix LIBNUMA build with glibc 2.12 and older. 2013-03-14 08:06:21 -03:00
config perf tools: Make numa benchmark optional 2013-01-30 10:36:21 -03:00
Documentation perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
python perf python: Use attr.watermark in twatch.py 2012-01-30 18:38:23 -02:00
scripts perf perl scripts: Fix SIGALRM and pipe read race for rwtop 2013-02-06 18:09:27 -03:00
tests perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00
ui perf annotate browser: Support event group view on TUI 2013-03-15 13:06:07 -03:00
util perf tools: Fix output of symbol_daddr offset 2013-04-01 12:22:15 -03:00
.gitignore perf tools: Ignore compiled python binaries 2012-09-07 12:10:58 -03:00
bash_completion perf tools: Complete tracepoint event names 2012-10-04 12:44:52 -03:00
builtin-annotate.c perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00
builtin-bench.c perf tools: Make numa benchmark optional 2013-01-30 10:36:21 -03:00
builtin-buildid-cache.c perf buildid-cache: Add --update option 2013-02-14 14:59:27 -03:00
builtin-buildid-list.c perf symbols: Generalize filter in __fprintf_buildid methods 2012-12-09 08:46:07 -03:00
builtin-diff.c perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00
builtin-evlist.c perf evlist: Pass the event_group info via perf_attr_details 2013-02-06 18:09:28 -03:00
builtin-help.c perf help: Fix --help for builtins 2012-10-22 12:35:49 -02:00
builtin-inject.c perf inject: Mark a dso if it's used 2012-10-26 11:22:25 -02:00
builtin-kmem.c perf kmem: Use memdup() 2013-01-25 12:49:28 -03:00
builtin-kvm.c perf tools: Introduce tools/lib/lk library 2013-03-15 13:06:00 -03:00
builtin-list.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
builtin-lock.c perf tools: Add a global variable "const char *input_name" 2012-10-29 11:45:34 -02:00
builtin-mem.c perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
builtin-probe.c perf tools: Introduce tools/lib/lk library 2013-03-15 13:06:00 -03:00
builtin-record.c perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00
builtin-report.c perf report: Add support for mem access profiling 2013-04-01 12:21:28 -03:00
builtin-sched.c Revert "perf sched: Handle PERF_RECORD_EXIT events" 2013-04-01 12:22:34 -03:00
builtin-script.c perf script: Don't display trace info when invoking scripts 2013-01-24 16:40:52 -03:00
builtin-stat.c perf stat: Add per-core aggregation 2013-03-25 16:13:26 -03:00
builtin-timechart.c perf tools: Add a global variable "const char *input_name" 2012-10-29 11:45:34 -02:00
builtin-top.c perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00
builtin-trace.c perf trace: Free evlist resources properly on return path 2013-03-15 13:06:11 -03:00
builtin.h perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
command-list.txt perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP 2012-05-31 11:38:42 -03:00
Makefile perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
MANIFEST perf tools: Introduce tools/lib/lk library 2013-03-15 13:06:00 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf.c perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
perf.h perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00