Messages in this thread | | | Date | Wed, 10 Apr 2024 17:50:44 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 5/6] perf report: Add a menu item to annotate data type in TUI |
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On Wed, Apr 10, 2024 at 05:46:04PM -0300, Arnaldo Carvalho de Melo wrote: > On Tue, Apr 09, 2024 at 04:49:59PM -0700, Namhyung Kim wrote: > > When the hist entry has the type info, it should be able to display the > > annotation browser for the type like in `perf annotate --data-type`. > > Trying to test this with: > > root@number:~# perf report --header-only |& grep "perf record" > # cmdline : /home/acme/bin/perf record -a -e {cpu_core/mem-loads,ldlat=30/P,cpu_core/mem-stores/P} > root@number:~# perf evlist -v > cpu_core/mem-loads,ldlat=30/P: type: 4 (cpu_core), size: 136, config: 0x1cd (mem-loads), { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|CPU|PERIOD|IDENTIFIER, read_format: ID|LOST, disabled: 1, inherit: 1, freq: 1, precise_ip: 2, sample_id_all: 1, { bp_addr, config1 }: 0x1f > cpu_core/mem-stores/P: type: 4 (cpu_core), size: 136, config: 0x2cd (mem-stores), { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|CPU|PERIOD|IDENTIFIER, read_format: ID|LOST, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1 > dummy:u: type: 1 (software), size: 136, config: 0x9 (PERF_COUNT_SW_DUMMY), { sample_period, sample_freq }: 1, sample_type: IP|TID|TIME|CPU|IDENTIFIER, read_format: ID|LOST, inherit: 1, exclude_kernel: 1, exclude_hv: 1, mmap: 1, comm: 1, task: 1, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1 > root@number:~# perf report -s type > > And when I press ESC to exit: > > root@number:~# perf report -s type > perf: Segmentation fault > -------- backtrace -------- > perf[0x61326b] > /lib64/libc.so.6(+0x3e9a0)[0x7f7173a5c9a0] > /lib64/libc.so.6(free+0x25)[0x7f7173abd385] > perf[0x5d5002] > perf[0x4fd007] > perf[0x523ce0] > perf[0x525ad4] > perf[0x503f43] > perf[0x557ad4] > perf[0x557eeb] > perf[0x4e5355] > perf[0x4dea42] > perf[0x528aad] > perf[0x42b559] > perf[0x4c39e9] > perf[0x4c3cf9] > perf[0x410e47] > /lib64/libc.so.6(+0x2814a)[0x7f7173a4614a] > /lib64/libc.so.6(__libc_start_main+0x8b)[0x7f7173a4620b] > perf[0x4113e5] > root@number:~# > > Trying to build with debug info...
Removing the O= dir and then trying with:
⬢[acme@toolbox perf-tools-next]$ alias m alias m='rm -rf ~/libexec/perf-core/ ; make -k DEBUG=1 CORESIGHT=1 O=/tmp/build/$(basename $PWD)/ -C tools/perf install-bin && perf test python' ⬢[acme@toolbox perf-tools-next]$
I don't get a backtrace :-\ Ooops, sometimes I get it, but again without resolving symbols:
root@number:~# perf report -s type perf: Segmentation fault -------- backtrace -------- perf[0x6b1087] /lib64/libc.so.6(+0x3e9a0)[0x7fc15fa5c9a0] /lib64/libc.so.6(free+0x25)[0x7fc15fabd385] perf[0x66c2c0] perf[0x66c363] perf[0x553bc5] perf[0x553d63] perf[0x57ed76] perf[0x58027e] perf[0x5802bc] perf[0x580325] perf[0x5818aa] perf[0x582241] perf[0x58233c] perf[0x5823fd] perf[0x55c4ca] perf[0x55c55f] perf[0x5c36bf] perf[0x5c1049] perf[0x5c1197] perf[0x5c7a4d] perf[0x5c7ac7] perf[0x531928] perf[0x53196d] perf[0x526a70] perf[0x526b7d] perf[0x585fd8] perf[0x434503] perf[0x5062c3] perf[0x506532] perf[0x506681] perf[0x506978] root@number:~#
Will try with gdb:
Lots of forks:
┌Merging related events...────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ [ [ from child process 2278982] │ [Detaching after fork from child process 2278983]─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ [Detaching after fork from child process 2278984] [Detaching after fork from child process 2278985] [Detaching after fork from child process 2278986] [Detaching after fork from child process 2278987] [Detaching after fork from child process 2278988] [Detaching after fork from child process 2278989]
┌───────────────────────────┐ ▒ │Do you really want to exit?│ ▒ │ │ ▒ │Enter: Yes, ESC: No │ ▒ └───────────────────────────Program received signal SIGSEGV, Segmentation fault. ▒ 0x00007ffff6ebd385 in __GI___libc_free (mem=0x69647225202c3866) at malloc.c:3368 ▒ Downloading source file /usr/src/debug/glibc-2.38-17.fc39.x86_64/malloc/malloc.c ▒ 3368 if (chunk_is_mmapped (p)) /* release mmapped memory. */ (gdb)
and:
(gdb) bt #0 0x00007ffff6ebd385 in __GI___libc_free (mem=0x69647225202c3866) at malloc.c:3368 ▒ #1 0x000000000066c2c0 in delete_data_type_histograms (adt=0x8dedf0c0) at util/annotate-data.c:1655 ▒ #2 0x000000000066c363 in annotated_data_type__tree_delete (root=0xe6bc68) at util/annotate-data.c:1669 ▒ #3 0x0000000000553bc5 in dso__delete (dso=0xe6bbd0) at util/dso.c:1376 ▒ #4 0x0000000000553d63 in dso__put (dso=0xe6bbd0) at util/dso.c:1409 ▒ #5 0x000000000057ed76 in __dso__zput (dso=0xf5b540) at util/dso.h:262 ▒ #6 0x000000000058027e in map__exit (map=0xf5b520) at util/map.c:300 ▒ #7 0x00000000005802bc in map__delete (map=0xf5b520) at util/map.c:305cord -b ... ; perf report --total-cycles ▒ #8 0x0000000000580325 in map__put (map=0xf5b520) at util/map.c:312 #9 0x00000000005818aa in __map__zput (map=0xf3e300) at util/map.h:196 #10 0x0000000000582241 in maps__exit (maps=0xf5aee0) at util/maps.c:246 #11 0x000000000058233c in maps__delete (maps=0xf5aee0) at util/maps.c:268 #12 0x00000000005823fd in maps__put (maps=0xf5aee0) at util/maps.c:285 #13 0x000000000055c4ca in __maps__zput (map=0x47856d8) at util/maps.h:32 #14 0x000000000055c55f in map_symbol__exit (ms=0x47856d8) at util/map_symbol.c:8 #15 0x00000000005c36bf in hist_entry__delete (he=0x4785660) at util/hist.c:1319 #16 0x00000000005c1049 in hists__delete_entry (hists=0xe68fe0, he=0x4785660) at util/hist.c:382 #17 0x00000000005c1197 in hists__delete_entries (hists=0xe68fe0) at util/hist.c:410 #18 0x00000000005c7a4d in hists__delete_all_entries (hists=0xe68fe0) at util/hist.c:2872 #19 0x00000000005c7ac7 in hists_evsel__exit (evsel=0xe68d70) at util/hist.c:2884 #20 0x0000000000531928 in evsel__exit (evsel=0xe68d70) at util/evsel.c:1489 #21 0x000000000053196d in evsel__delete (evsel=0xe68d70) at util/evsel.c:1497 #22 0x0000000000526a70 in evlist__purge (evlist=0xe67a00) at util/evlist.c:163 #23 0x0000000000526b7d in evlist__delete (evlist=0xe67a00) at util/evlist.c:185 #24 0x0000000000585fd8 in perf_session__delete (session=0xe670a0) at util/session.c:313 #25 0x0000000000434503 in cmd_report (argc=0, argv=0x7fffffffe430) at builtin-report.c:1828 #26 0x00000000005062c3 in run_builtin (p=0xe3f160 <commands+288>, argc=3, argv=0x7fffffffe430) at perf.c:350 #27 0x0000000000506532 in handle_internal_command (argc=3, argv=0x7fffffffe430) at perf.c:403 #28 0x0000000000506681 in run_argv (argcp=0x7fffffffe21c, argv=0x7fffffffe210) at perf.c:447 #29 0x0000000000506978 in main (argc=3, argv=0x7fffffffe430) at perf.c:561 (gdb)
Continuing...
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