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| author | Ingo Molnar <mingo@elte.hu> | 2009-05-27 22:13:17 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-27 22:19:58 +0200 |
| commit | 55717314c4e3a5180a54228a2f97e50f3496de4c (patch) | |
| tree | 14c49455a28011e8122bfdec48162363a2090bbd /Documentation | |
| parent | 2d65537ee7cd4a0818ea80a97ab7932368fff5cd (diff) | |
| download | op-kernel-dev-55717314c4e3a5180a54228a2f97e50f3496de4c.zip op-kernel-dev-55717314c4e3a5180a54228a2f97e50f3496de4c.tar.gz | |
pref_counter: tools: report: Robustify in case of weird events
This error condition:
aldebaran:~/linux/linux/Documentation/perf_counter> perf report
dso__load_sym: cannot get elf header.
failed to open: /etc/ld.so.cache
problem processing PERF_EVENT_MMAP, bailing out
caused the profile to be very short - as the error was at the beginning
of the file and we bailed out completely.
Be more permissive and consider the event broken instead.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/perf_counter/builtin-report.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c index 6df95c2..5993c12 100644 --- a/Documentation/perf_counter/builtin-report.c +++ b/Documentation/perf_counter/builtin-report.c @@ -1117,9 +1117,9 @@ more: } if (thread == NULL) { - fprintf(stderr, "problem processing %d event, bailing out\n", + fprintf(stderr, "problem processing %d event, skipping it.\n", event->header.type); - goto done; + goto broken_event; } if (event->header.misc & PERF_EVENT_MISC_KERNEL) { @@ -1149,8 +1149,8 @@ more: if (hist_entry__add(thread, map, dso, sym, ip, level)) { fprintf(stderr, - "problem incrementing symbol count, bailing out\n"); - goto done; + "problem incrementing symbol count, skipping event\n"); + goto broken_event; } } total++; @@ -1169,8 +1169,8 @@ more: event->mmap.filename); } if (thread == NULL || map == NULL) { - fprintf(stderr, "problem processing PERF_EVENT_MMAP, bailing out\n"); - goto done; + fprintf(stderr, "problem processing PERF_EVENT_MMAP, skipping event.\n"); + goto broken_event; } thread__insert_map(thread, map); total_mmap++; @@ -1187,8 +1187,8 @@ more: } if (thread == NULL || thread__set_comm(thread, event->comm.comm)) { - fprintf(stderr, "problem processing PERF_EVENT_COMM, bailing out\n"); - goto done; + fprintf(stderr, "problem processing PERF_EVENT_COMM, skipping event.\n"); + goto broken_event; } total_comm++; break; @@ -1221,7 +1221,6 @@ broken_event: goto more; rc = EXIT_SUCCESS; -done: close(input); if (dump_trace) { |
