Messages in this thread | | | Date | Wed, 16 May 2018 16:33:55 -0500 | From | Kim Phillips <> | Subject | Re: [PATCH 01/11] perf tests parse-events: Add intel_pt parse test |
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On Wed, 16 May 2018 11:48:58 -0300 Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com> > > To avoid regressions such as the one fixed by 4a35a9027f64 ("Revert > "perf pmu: Fix pmu events parsing rule""), where '-e intel_pt//u' got > broken, with this new entry in this 'perf tests' subtest, we would have > caught it before pushing upstream. > > Acked-by: Jiri Olsa <jolsa@kernel.org> > Cc: Adrian Hunter <adrian.hunter@intel.com> > Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> > Cc: Andi Kleen <ak@linux.intel.com> > Cc: David Ahern <dsahern@gmail.com> > Cc: Jiri Olsa <jolsa@kernel.org> > Cc: Kan Liang <kan.liang@linux.intel.com> > Cc: Namhyung Kim <namhyung@kernel.org> > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Wang Nan <wangnan0@huawei.com> > Link: https://lkml.kernel.org/n/tip-kw62fys9bwdgsp722so2ln1l@git.kernel.org > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> > ---
This causes a SEGV on Arm, and an Intel box without Intel-PT h/w:
(gdb) run test -F -v 6 Starting program: /home/kimphi01/git/linux-perf-acme/tools/perf/perf test -F -v 6 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". 6: Parse event definition strings : --- start --- running test 0 'syscalls:sys_enter_openat' Using CPUID GenuineIntel-6-3C <SNIP> running test 51 'L1-dcache-misses/name=cachepmu/' running test 52 'intel_pt//u'
Program received signal SIGSEGV, Segmentation fault. __GI___vasprintf_chk (result_ptr=0x8, flags=1, format=<optimized out>, args=args@entry=0x7fffffffbf30) at vasprintf_chk.c:88 88 vasprintf_chk.c: No such file or directory. (gdb) bt #0 __GI___vasprintf_chk (result_ptr=0x8, flags=1, format=<optimized out>, args=args@entry=0x7fffffffbf30) at vasprintf_chk.c:88 #1 0x00007ffff6456e6f in __asprintf_chk (result_ptr=result_ptr@entry=0x8, flags=flags@entry=1, format=format@entry=0x555555992e80 "Cannot find PMU `%s'. Missing kernel support?") at asprintf_chk.c:32 #2 0x0000555555766836 in asprintf (__fmt=0x555555992e80 "Cannot find PMU `%s'. Missing kernel support?", __ptr=0x8) at /usr/include/x86_64-linux-gnu/bits/stdio2.h:178 #3 parse_events_add_pmu (parse_state=parse_state@entry=0x7fffffffdda0, list=list@entry=0x555555e137d0, name=0x5555563e84e0 "intel_pt", head_config=0x0, auto_merge_stats=auto_merge_stats@entry=false, use_alias=use_alias@entry=false) at util/parse-events.c:1236 #4 0x00005555557aaaae in parse_events_parse (_parse_state=_parse_state@entry=0x7fffffffdda0, scanner=0x555555d38c40) at util/parse-events.y:235 #5 0x0000555555761ccf in parse_events__scanner (start_token=258, parse_state=0x7fffffffdda0, str=<optimized out>) at util/parse-events.c:1796 #6 parse_events (evlist=evlist@entry=0x555555d381f0, str=<optimized out>, err=err@entry=0x0) at util/parse-events.c:1836 #7 0x000055555571eb65 in test_event (e=0x555555bf4f80 <test.events+1248>, e=0x555555bf4f80 <test.events+1248>) at tests/parse-events.c:1695 #8 test_events (events=0x555555bf4aa0 <test.events>, cnt=53) at tests/parse-events.c:1717 #9 test__parse_events (test=<optimized out>, subtest=<optimized out>) at tests/parse-events.c:1837 #10 0x0000555555716a11 in run_test (subtest=-1, test=0x555555bfca78 <generic_tests+280>) at tests/builtin-test.c:348 #11 test_and_print (t=t@entry=0x555555bfca78 <generic_tests+280>, force_skip=force_skip@entry=false, subtest=subtest@entry=-1) at tests/builtin-test.c:378 #12 0x0000555555717e2f in __cmd_test (skiplist=0x0, argv=0x7fffffffe5c0, argc=1) at tests/builtin-test.c:570 #13 cmd_test (argc=1, argv=0x7fffffffe5c0) at tests/builtin-test.c:709 #14 0x0000555555738b41 in run_builtin (p=0x555555bfd848 <commands+552>, argc=4, argv=0x7fffffffe5c0) at perf.c:303 #15 0x0000555555738e3e in handle_internal_command (argc=4, argv=0x7fffffffe5c0) at perf.c:355 #16 0x00005555556b3901 in run_argv (argcp=<synthetic pointer>, argv=<synthetic pointer>) at perf.c:399 #17 main (argc=<optimized out>, argv=0x7fffffffe5c0) at perf.c:543 (gdb)
Thanks,
Kim
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