Messages in this thread | | | Date | Sat, 03 Aug 2013 22:37:48 +0300 | From | Adrian Hunter <> | Subject | Re: [PATCH V2 1/9] perf tools: add test for reading object code |
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On 31/07/2013 8:46 p.m., Arnaldo Carvalho de Melo wrote: > Em Wed, Jul 31, 2013 at 02:28:33PM -0300, Arnaldo Carvalho de Melo escreveu: >> Still investigating, but the attached patch is needed to handle such >> failure cases: > >> [root@zoo ~]# perf test 21 >> 21: Test object code reading : FAILED! >> [root@zoo ~]# perf test -v 21 > > Lowering the freq to 4kHz gets me to where I think you was at this > point: > > [root@zoo ~]# perf test -v 21 > 21: Test object code reading : > --- start --- > Looking at the vmlinux_path (6 entries long) > symsrc__init: cannot get elf header. > Using /lib/modules/3.11.0-rc2+/build/vmlinux for symbols > Parsing event 'cycles' > Reading object code for memory address: 0xffffffff8101ce7d > File is: /lib/modules/3.11.0-rc2+/build/vmlinux > On file address is: 0xffffffff8101ce7d > dso__data_read_offset failed > ---- end ---- > Test object code reading: FAILED! > [root@zoo ~]# > > I.e. we need the follow on patches to fix this issue, right?
Yes. It is using an "identity" map so the memory address and on-file address are the same - which doesn't work of course.
> > I'll merge my changes with your first patch and continue from there.
Please take V3.
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