Messages in this thread | | | Date | Tue, 1 Mar 2016 15:20:35 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: Intel PT not work on 4.5.0-rc |
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Em Tue, Mar 01, 2016 at 12:59:21PM -0300, Arnaldo Carvalho de Melo escreveu: > Anyway, 'strace' shows the 4 pairs of mmaps, but it still doesn't work, rebooting:
After I reboot, all works:
[root@jouet ~]# perf record -e intel_pt//u -a sleep 0.001 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.119 MB perf.data ] [root@jouet ~]# perf script | head -10 perf 3797 [002] 8136.590828: 1 branches:u: 0 [unknown] ([unknown]) => 7fcb3f240707 __GI___ioctl (/usr/lib64/libc-2.22.so) perf 3797 [002] 8136.590828: 1 branches:u: 7fcb3f24070f __GI___ioctl (/usr/lib64/libc-2.22.so) => 497e56 perf_evsel__enable (/home/acme/bin/perf) perf 3797 [002] 8136.590828: 1 branches:u: 497e58 perf_evsel__enable (/home/acme/bin/perf) => 497e20 perf_evsel__enable (/home/acme/bin/perf) perf 3797 [002] 8136.590828: 1 branches:u: 497e27 perf_evsel__enable (/home/acme/bin/perf) => 497e80 perf_evsel__enable (/home/acme/bin/perf) perf 3797 [002] 8136.590828: 1 branches:u: 497e87 perf_evsel__enable (/home/acme/bin/perf) => 497e14 perf_evsel__enable (/home/acme/bin/perf) perf 3797 [002] 8136.590828: 1 branches:u: 497e1b perf_evsel__enable (/home/acme/bin/perf) => 497e29 perf_evsel__enable (/home/acme/bin/perf) perf 3797 [002] 8136.590828: 1 branches:u: 497e51 perf_evsel__enable (/home/acme/bin/perf) => 421d00 ioctl@plt (/home/acme/bin/perf) perf 3797 [002] 8136.590828: 1 branches:u: 421d00 ioctl@plt (/home/acme/bin/perf) => 7fcb3f240700 __GI___ioctl (/usr/lib64/libc-2.22.so) perf 3797 [002] 8136.590828: 1 branches:u: 7fcb3f240705 __GI___ioctl (/usr/lib64/libc-2.22.so) => 0 [unknown] ([unknown]) perf 3797 [002] 8136.590834: 1 branches:u: 0 [unknown] ([unknown]) => 7fcb3f240707 __GI___ioctl (/usr/lib64/libc-2.22.so) [root@jouet ~]# [root@jouet ~]# perf report -D | tail -20 . 0020: 00 00 00 00 00 00 00 00 07 14 b9 72 66 07 00 00 ...........rf... . 0030: 03 00 00 00 00 00 00 00 1e 00 00 00 00 00 00 00 ................
3 8136592790535 0x11e688 [0x40]: PERF_RECORD_AUX offset: 0x28 size: 0x28 flags: 0 []
Aggregated stats: (excludes AUX area (e.g. instruction trace) decoded / synthesized events) TOTAL events: 8859 MMAP events: 120 COMM events: 509 EXIT events: 1 FORK events: 507 MMAP2 events: 7673 AUX events: 8 ITRACE_START events: 4 SWITCH_CPU_WIDE events: 26 FINISHED_ROUND events: 2 AUXTRACE_INFO events: 1 AUXTRACE events: 8 intel_pt//u stats: dummy:u stats: [root@jouet ~]#
Trying a suspend/resume now...
- Arnaldo
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