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SubjectRe: [PATCH v3] perf tools: Add symfs option for off-box analysis using specified tree
Em Tue, Dec 14, 2010 at 10:52:45AM -0200, Arnaldo Carvalho de Melo escreveu:
> Ok, there are still some problems:
>
> It is escaping the symfs jail for /home/acme/bin/perf, /lib64/libpthread-2.5.so
> and kernel modules, investigating...

Those 'G' signals means DSO__ORIG_GUEST_KMODULE, since you were not
prefixing that case with symfs, it was the jail leak point, fixed, doing
some more testing before merging.

> [acme@mica linux]$ find /tmp/bla
> /tmp/bla
> /tmp/bla/lib64
> /tmp/bla/lib64/libc-2.5.so
> [acme@mica linux]$ perf report -v -g none --stdio --symfs /tmp/bla
> Failed to open [kernel.kallsyms], continuing without symbols
> # Events: 503 cycles
> #
> # Overhead Command Shared Object Symbol
> # ........ .......... ..................................... ....................
> #
> 0.84% perf /home/acme/bin/perf 0x26bf1 G [.] die_builtin
> 0.21% perf /home/acme/bin/perf 0x1db4b G [.] event__synthesize_kernel_mmap
> 0.21% perf /home/acme/bin/perf 0x4700 G [.] _init
> 0.21% perf /home/acme/bin/perf 0x1deca G [.] event__synthesize_comm
> 0.21% perf /lib64/libpthread-2.5.so 0xd210 G [.] __write_nocancel
> 0.21% perf /home/acme/bin/perf 0xddbd G [.] atexit_header
> 0.03% kworker/0:1 /lib/modules/2.6.37-rc3/.../ixgbe.ko 0x605 G [k] ixgbe_update_stats


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