Bug 489732

Summary: Segmentation fault in opreport - oprofile unusable in F11
Product: [Fedora] Fedora Reporter: Jochen Roth <jroth>
Component: oprofileAssignee: William Cohen <wcohen>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: ehabkost, wcohen
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2009-04-09 15:22:28 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 467651    
Bug Blocks:    

Description Jochen Roth 2009-03-11 15:47:37 UTC
With the current rawhide version of oprofile, binutils and glibc opreport segfaults when using the -l option (see below)

I saw in koji that the rebuild of oprofile for F11 failed.

The most current working version oprofile-0.9.4-3.fc10 has the same problem as described in bug #467651
Recompiling from source (as suggested in comment #7) didn't help a lot as opreport is segfaulting now (see below)

binutils-2.19.51.0.2-16.fc11.i586
binutils-devel-2.19.51.0.2-16.fc11.i586
glibc-2.9.90-8.1.i686
glibc-devel-2.9.90-8.1.i586


gdb --args opreport -l --merge tgid
...
...
Counted CPU_CLK_UNHALTED events (Unhalted clock cycles) with a unit mask of 0x00 (Unhalted core cycles) count 100000
Samples on CPU 0
Samples on CPU 1

Program received signal SIGSEGV, Segmentation fault.
interesting_symbol (sym=0x0) at bfd_support.cpp:336
336		if (!sym->section) {
Missing separate debuginfos, use: debuginfo-install libgcc-4.4.0-0.23.i586 libstdc++-4.4.0-0.23.i586
(gdb) bt
#0  interesting_symbol (sym=0x0) at bfd_support.cpp:336
#1  0x080abd01 in op_bfd::get_symbols (this=0xbffff234, symbols=@0xbffff194) at op_bfd.cpp:217
#2  0x080acb03 in op_bfd (this=0xbffff234, fname=@0x81ac0d8, symbol_filter=@0x8198384, extra_images=@0xbffff4cc, ok=@0xbffff31f) at op_bfd.cpp:171
#3  0x08084b9d in populate_for_image (samples=@0xbffff4a8, ip=@0x81ac0d8, symbol_filter=@0x8198384, has_debug_info=0x0) at populate.cpp:70
#4  0x080544e9 in opreport (spec=@0xbffff634) at opreport.cpp:576
#5  0x0805b7c1 in run_pp_tool (argc=4, argv=0xbffff734, fct=0x8053d50 <opreport>) at common_option.cpp:210
#6  0x0804cabd in main (argc=4, argv=0xbffff734) at opreport.cpp:590

Comment 1 Jochen Roth 2009-03-13 12:34:55 UTC
I'm not able to reproduce this problem anymore. All I did was upgrading to the latest available kernel in rawhide.

Comment 2 William Cohen 2009-04-09 14:33:54 UTC
Just rebuilt oprofile for F11, oprofile-0.9.4-6.fc11 (http://koji.fedoraproject.org/koji/buildinfo?buildID=97181). Could you check that this problem no longer occurs with the newer oprofile?

Comment 3 Jochen Roth 2009-04-09 15:14:08 UTC
Yes, I just installed the latest build from koji on F10 and everything works now as expected! 

Thanks for your help.