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List:       oprofile-list
Subject:    Re: Segmentation fault |  opreport -l
From:       Maynard Johnson <maynardj () us ! ibm ! com>
Date:       2009-09-23 19:33:23
Message-ID: 4ABA7803.6000202 () us ! ibm ! com
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jzarr wrote:
> Backtrace below, used standard build -g -02
> 
> (gdb) r
> Starting program: /bin/opreport --session-dir=/t/op/ session:test_data -l
> image:/t/op/vmlinux
> Overflow stats not available
> CPU: CPU with timer interrupt, speed 0 MHz (estimated)
> Profiling through timer interrupt
> 
> Program received signal SIGSEGV, Segmentation fault.
This stack trace looks pretty much line the one reported in:
http://sourceforge.net/tracker/?func=detail&aid=1921984&group_id=16191&atid=116191

That bug was eventually resolved when the user upgraded their version of binutils, \
implying there was a bug in the BFD library.  Can you upgrade binutils?

-Maynard
> op_bfd (this=0xbea21988, fname=<value optimized out>, 
> symbol_filter=@0xbea219f8, extra_images=<value optimized out>, ok=@0x0)
> at op_bfd.cpp:161
> 161     op_bfd.cpp: No such file or directory.
> in op_bfd.cpp
> (gdb) bt
> #0  op_bfd (this=0xbea21988, fname=<value optimized out>, 
> symbol_filter=@0xbea219f8, extra_images=<value optimized out>, ok=@0x0)
> at op_bfd.cpp:161
> #1  0x0004b27c in populate_for_image (samples=@0xbea21b30, ip=@0xbffc0, 
> symbol_filter=@0x1, has_debug_info=0xbea21b54) at populate.cpp:70
> #2  0x0000ef4c in (anonymous namespace)::opreport (spec=<value optimized
> out>)
> at opreport.cpp:576
> #3  0x0001f3b8 in run_pp_tool (argc=<value optimized out>, argv=0xbea21da4, 
> fct=0xeb2c <(anonymous namespace)::opreport(options::spec const&)>)
> at common_option.cpp:198
> #4  0x402551cc in __libc_start_main () from /lib/libc.so.6
> #5  0x0000c58c in _start ()
> (gdb) 
> 
> 
> 
> 
> jzarr wrote:
> > Hi,
> > I am using oprofile for the first time. I have cross-compiled oprofile
> > 0.9.5 for the I.MX 27 cpu (armv5). When i execute "opreport
> > --session-dir=/t/op/ session:test_data" i receive the basic summary.
> > However, when i run "opreport --session-dir=/t/op/ session:test_data  -l
> > image:/t/op/vmlinux" i receive a segmentation fault.
> > 
> > Overflow stats not available
> > CPU: CPU with timer interrupt, speed 0 MHz (estimated)
> > Profiling through timer interrupt
> > Segmentation fault
> > 
> > The steps i am following are:
> > opcontrol --start --vmlinux=/t/op/vmlinux --session-dir=/t/op/
> > opcontrol --dump
> > opcontrol --stop
> > opcontrol --save=test_data
> > opreport --session-dir=/t/op/ session:test_data : Works just fine
> > opreport --session-dir=/t/op/ session:test_data  -l image:/t/op/vmlinux :
> > Segfaults
> > 
> > The location /t/op is NFS mounted and vmlinux is present and is a built
> > with symbols.
> > 
> > My log file contains the following:
> > "kernel pointer size: 4
> > 
> > Tue Sep 22 14:41:13 2009
> > 
> > 
> > -- OProfile Statistics --
> > Nr. sample dumps: 1
> > Nr. non-backtrace samples: 30711
> > Nr. kernel samples: 30709
> > Nr. lost samples (no kernel/user): 0
> > Nr. lost kernel samples: 0
> > Nr. incomplete code structs: 0
> > Nr. samples lost due to sample file open failure: 0
> > Nr. samples lost due to no permanent mapping: 0
> > Nr. event lost due to buffer overflow: 0
> > Nr. samples lost due to no mapping: 0
> > Nr. backtraces skipped due to no file mapping: 0
> > Nr. samples lost due to no mm: 0
> > 
> > ---- Statistics for cpu : 0
> > Nr. samples lost cpu buffer overflow: 0
> > Nr. samples received: 59895
> > Nr. backtrace aborted: 0
> > Nr. samples lost invalid pc: 0
> > Failed to exec opjitconv: No such file or directory
> > JIT dump processing exited abnormally: 1
> > JIT dump processing exited abnormally: 1
> > JIT dump processing exited abnormally: 1
> > Failed to exec opjitconv: No such file or directory
> > JIT dump processing exited abnormally: 1
> > JIT dump processing exited abnormally: 1
> > Failed to exec opjitconv: No such file or directory
> > Received SIGHUP.
> > JIT dump processing exited abnormally: 1"
> > 
> > My /var/lib/ directory is empty. If there is any other debug information i
> > can provide please let me know. I am executing opreport on my ARM target,
> > if there is a way to execute the report on my host PC i am willing to give
> > it a try. Any help is appreciated.
> > 
> > Thanks,
> > Joshua Zarr
> > 
> 


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