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Date: Fri, 13 Mar 2015 12:46:51 -0400 From: Jérémie Galarneau <jeremie.galarneau@...icios.com> To: Arnaldo Carvalho de Melo <acme@...hat.com> Cc: Wang Nan <wangnan0@...wei.com>, Jiri Olsa <jolsa@...hat.com>, Jiri Olsa <jolsa@...nel.org>, linux-kernel@...r.kernel.org, Sebastian Andrzej Siewior <bigeasy@...utronix.de>, David Ahern <dsahern@...il.com>, Frederic Weisbecker <fweisbec@...il.com>, Jeremie Galarneau <jgalar@...icios.com>, Namhyung Kim <namhyung@...il.com>, Paul Mackerras <paulus@...ba.org>, Peter Zijlstra <peterz@...radead.org>, Tom Zanussi <tzanussi@...il.com>, Li Zefan <lizefan@...wei.com> Subject: Re: [PATCH 06/11] perf data: Switch to multiple cpu stream files On Thu, Mar 12, 2015 at 3:17 PM, Arnaldo Carvalho de Melo <acme@...hat.com> wrote: > Em Thu, Mar 12, 2015 at 09:40:09PM +0800, Wang Nan escreveu: >> On 2015/3/12 20:34, Jiri Olsa wrote: >> > On Thu, Mar 12, 2015 at 07:37:02PM +0800, Wang Nan wrote: >> >> Hi Jiri, >> >> >> >> Have you noticed that this patch causes a endianess problem? >> >> >> >> Without this patch: >> >> >> >> $ perf data convert --to-ctf ./out.ctf >> >> [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ] >> >> [ perf data convert: Converted and wrote 0.000 MB (11 samples) ] >> >> >> >> With this patch: >> >> >> >> $ perf data convert --to-ctf ./out.ctf >> >> perf: event-types.c:1855: bt_ctf_field_type_set_native_byte_order: Assertion `byte_order == 1234 || byte_order == 4321' failed. >> >> Aborted >> >> >> >> I'll look into this problem if you haven't solved it yet. Please let me know if you have already >> >> have some solutions. >> > >> > hum, never seen this.. any other details? >> >> >> >> My perf is -tip tree (commit 4b52a8d), with patch 'perf data: Add tracepoint events fields CTF conversion support' >> applied. Babeltrace is fresh new git clone (commit 48d711a). >> >> you moved perf.data >> > through different endian server or something like that? >> > >> >> Never. > > Just reproduced this: > > [acme@...andy linux]$ perf data convert --to-ctf=./ctf-data/ > perf: event-types.c:1855: bt_ctf_field_type_set_native_byte_order: > Assertion `byte_order == 1234 || byte_order == 4321' failed. > Aborted (core dumped) > [acme@...andy linux]$ > > > perf: event-types.c:1855: bt_ctf_field_type_set_native_byte_order: Assertion `byte_order == 1234 || byte_order == 4321' failed. > > Program received signal SIGABRT, Aborted. > 0x00007ffff5b345d7 in raise () from /lib64/libc.so.6 > Missing separate debuginfos, use: debuginfo-install audit-libs-2.4.1-5.el7.x86_64 bzip2-libs-1.0.6-12.el7.x86_64 elfutils-libelf-0.160-1.el7.x86_64 elfutils-libs-0.160-1.el7.x86_64 glib2-2.40.0-4.el7.x86_64 glibc-2.17-78.el7.x86_64 libgcc-4.8.3-9.el7.x86_64 libuuid-2.23.2-21.el7.x86_64 nss-softokn-freebl-3.16.2.3-9.el7.x86_64 numactl-libs-2.0.9-4.el7.x86_64 perl-libs-5.16.3-285.el7.x86_64 popt-1.13-16.el7.x86_64 python-libs-2.7.5-16.el7.x86_64 slang-2.2.4-11.el7.x86_64 xz-libs-5.1.2-9alpha.el7.x86_64 zlib-1.2.7-13.el7.x86_64 > (gdb) bt > #0 0x00007ffff5b345d7 in raise () from /lib64/libc.so.6 > #1 0x00007ffff5b35cc8 in abort () from /lib64/libc.so.6 > #2 0x00007ffff5b2d546 in __assert_fail_base () from /lib64/libc.so.6 > #3 0x00007ffff5b2d5f2 in __assert_fail () from /lib64/libc.so.6 > #4 0x00007ffff510034a in bt_ctf_field_type_set_native_byte_order (type=<optimized out>, byte_order=<optimized out>) at event-types.c:1855 > #5 0x00007ffff5101b59 in bt_ctf_stream_class_freeze (stream_class=0x8acc20) at stream-class.c:478 > #6 0x00007ffff50fbdc5 in bt_ctf_event_create (event_class=event_class@...ry=0x133d590) at event.c:324 > #7 0x00000000004e158d in process_sample_event (tool=0x7fffffffdc40, _event=<optimized out>, sample=0x7fffffffd840, evsel=0x8b1040, machine=<optimized out>) at util/data-convert-bt.c:518 > #8 0x00000000004b011d in __ordered_events__flush (oe=oe@...ry=0x8b0210) at util/ordered-events.c:214 > #9 0x00000000004b043a in ordered_events__flush (oe=oe@...ry=0x8b0210, how=how@...ry=OE_FLUSH__FINAL) at util/ordered-events.c:279 > #10 0x00000000004aee18 in __perf_session__process_events (file_size=139704, data_size=<optimized out>, data_offset=<optimized out>, session=0x8b0020) at util/session.c:1394 > #11 perf_session__process_events (session=session@...ry=0x8b0020) at util/session.c:1412 > #12 0x00000000004e270e in bt_convert__perf2ctf (input=<optimized out>, path=0x7fffffffe59d "./ctf-data/") at util/data-convert-bt.c:992 > #13 0x00000000004479cf in cmd_data_convert (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-data.c:77 > #14 0x000000000046f365 in run_builtin (p=p@...ry=0x8345a0 <commands+576>, argc=argc@...ry=3, argv=argv@...ry=0x7fffffffe2d0) at perf.c:370 > #15 0x000000000041def0 in handle_internal_command (argv=0x7fffffffe2d0, argc=3) at perf.c:429 > #16 run_argv (argv=0x7fffffffe050, argcp=0x7fffffffe05c) at perf.c:473 > #17 main (argc=3, argv=0x7fffffffe2d0) at perf.c:588 > (gdb) > I was able to reproduce this on my end as well. I pushed a fix addressing this issue in Babeltrace master as of 5ca83563. This scenario has also been added to Babeltrace's regression test suite. Jérémie > Stopping at this to process other patches, will be back to this after reducing the queue, > > - Arnaldo -- Jérémie Galarneau EfficiOS Inc. http://www.efficios.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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