Messages in this thread | | | Date | Mon, 11 Nov 2013 16:58:10 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: "Test object code reading" failing, debug messages don't help |
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Em Mon, Nov 11, 2013 at 04:55:59PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Mon, Nov 11, 2013 at 04:51:17PM -0300, Arnaldo Carvalho de Melo escreveu: > > Hi Adrian, > > > > I have perf test failing here: > > > > [root@ssdandy ~]# perf test 21 > > 21: Test object code reading : FAILED! > > [root@ssdandy ~]# > > > > Try it with -v, but all messages, except for that elf header, which I > > assume is for a previous entry that is not suitable and should not be > > considered, seems to say all is well, except that the test fails :-\ > > If I try gdb on test__code_reading, go on stepping thru it to try to > figure out why it fails, it works :-\
Why this is so is still unclear, but since the other problem I had was due to the kernel reducing the max sample_freq, I tried:
[root@ssdandy ~]# echo 10000 > /proc/sys/kernel/perf_event_max_sample_rate [root@ssdandy ~]# perf test 21 21: Test object code reading : Ok [root@ssdandy ~]# echo 7000 > /proc/sys/kernel/perf_event_max_sample_rate [root@ssdandy ~]# perf test 21 21: Test object code reading : FAILED! [root@ssdandy ~]#
Checking where in this test the sample_freq is set...
- Arnaldo
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