Re: Wrong Perf Backtraces

On Thu, Mar 26, 2020 at 12:31:32AM +0430, ahmadkhorrami wrote:
> Here you are:
> perf version 5.4.7
>                  dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
>     dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
>                  glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
>                   gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
>          syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
>                 libbfd: [ OFF ]  # HAVE_LIBBFD_SUPPORT
>                 libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
>                libnuma: [ OFF ]  # HAVE_LIBNUMA_SUPPORT
> numa_num_possible_cpus: [ OFF ]  # HAVE_LIBNUMA_SUPPORT
>                libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
>              libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
>               libslang: [ on  ]  # HAVE_SLANG_SUPPORT
>              libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
>              libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
>     libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
>                   zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
>                   lzma: [ on  ]  # HAVE_LZMA_SUPPORT
>              get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
>                    bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
>                    aio: [ on  ]  # HAVE_AIO_SUPPORT
>                   zstd: [ on  ]  # HAVE_ZSTD_SUPPORT
> and
> 	linux-vdso.so.1 (0x00007ffe55fca000)
> 	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
> (0x00007f82758f9000)
> 	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f82756f1000)
> 	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8275353000)
> 	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f827514f000)
> 	libelf.so.1 => /usr/lib/x86_64-linux-gnu/libelf.so.1 (0x00007f8274f35000)
> 	libdw.so.1 => /usr/lib/x86_64-linux-gnu/libdw.so.1 (0x00007f8274ce9000)
> 	libunwind-x86_64.so.8 => /usr/lib/x86_64-linux-gnu/libunwind-x86_64.so.8
> (0x00007f8274aca000)
> 	libunwind.so.8 => /usr/lib/x86_64-linux-gnu/libunwind.so.8

libunwind, ok

> (0x00007f82748af000)
> 	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f8274689000)
> 	libslang.so.2 => /lib/x86_64-linux-gnu/libslang.so.2 (0x00007f82741a7000)
> 	libperl.so.5.26 => /usr/lib/x86_64-linux-gnu/libperl.so.5.26
> (0x00007f8273daa000)
> 	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f82739b9000)
> 	libpython2.7.so.1.0 => /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
> (0x00007f827343c000)
> 	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f827321f000)
> 	libzstd.so.1 => /usr/lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f8272fa4000)
> 	/lib64/ld-linux-x86-64.so.2 (0x00007f8276427000)
> 	libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f8272d94000)
> 	libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007f8272b5c000)
> 	libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f8272959000)
> 
> Mr. Olsa said he needs the output of perf archive.

Mr Olsa did not actualy try to open/close pdf before as you described.. let me try and I'll let you know

thanks,
jirka