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    SubjectRe: [PATCH v3] perf tools: Add symfs option for off-box analysis using specified tree


    On 12/14/10 07:06, Arnaldo Carvalho de Melo wrote:
    > 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.

    yuk. I did not touch the hypervisor paths.

    So the 'guest' route is tried all the time because of the origin list --
    even when it's not applicable.

    David

    >
    >> [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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