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| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-12-13 10:48:28 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-12-18 08:31:14 -0300 |
| commit | 0c8e32fe48f549eef27c8c6b0a63530f83c3a643 (patch) | |
| tree | 6bd430146f1b865a5c71090a1f4684c097863db6 /tools/perf | |
| parent | 0a515a06c5ebfa46fee3ac519e418f801e718da4 (diff) | |
| download | linux-0c8e32fe48f549eef27c8c6b0a63530f83c3a643.tar.bz2 | |
perf inject: Fix segfault due to close without open
The fixed commit attempts to close inject.output even if it was never
opened e.g.
$ perf record uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.002 MB perf.data (7 samples) ]
$ perf inject -i perf.data --vm-time-correlation=dry-run
Segmentation fault (core dumped)
$ gdb --quiet perf
Reading symbols from perf...
(gdb) r inject -i perf.data --vm-time-correlation=dry-run
Starting program: /home/ahunter/bin/perf inject -i perf.data --vm-time-correlation=dry-run
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x00007eff8afeef5b in _IO_new_fclose (fp=0x0) at iofclose.c:48
48 iofclose.c: No such file or directory.
(gdb) bt
#0 0x00007eff8afeef5b in _IO_new_fclose (fp=0x0) at iofclose.c:48
#1 0x0000557fc7b74f92 in perf_data__close (data=data@entry=0x7ffcdafa6578) at util/data.c:376
#2 0x0000557fc7a6b807 in cmd_inject (argc=<optimized out>, argv=<optimized out>) at builtin-inject.c:1085
#3 0x0000557fc7ac4783 in run_builtin (p=0x557fc8074878 <commands+600>, argc=4, argv=0x7ffcdafb6a60) at perf.c:313
#4 0x0000557fc7a25d5c in handle_internal_command (argv=<optimized out>, argc=<optimized out>) at perf.c:365
#5 run_argv (argcp=<optimized out>, argv=<optimized out>) at perf.c:409
#6 main (argc=4, argv=0x7ffcdafb6a60) at perf.c:539
(gdb)
Fixes: 02e6246f5364d526 ("perf inject: Close inject.output on exit")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211213084829.114772-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-inject.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index b9d6306cc14e..af70f1c72052 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -1078,7 +1078,8 @@ out_delete: zstd_fini(&(inject.session->zstd_data)); perf_session__delete(inject.session); out_close_output: - perf_data__close(&inject.output); + if (!inject.in_place_update) + perf_data__close(&inject.output); free(inject.itrace_synth_opts.vm_tm_corr_args); return ret; } |