PGI User Forum
 SearchSearch   MemberlistMemberlist     RegisterRegister   ProfileProfile    Log inLog in 

Free OpenACC Course

Debugging 32-bit code on opteron gives false segfault?
Goto page Previous  1, 2
Post new topic   Reply to topic    PGI User Forum Forum Index -> Debugging and Profiling
View previous topic :: View next topic  
Author Message

Joined: 30 Jun 2004
Posts: 6332
Location: The Portland Group Inc.

PostPosted: Thu Mar 03, 2005 1:25 pm    Post subject: Reply with quote

Hi Mark,

I must appolgize for my late reply. Our Fedora Core 2 system went down a few weeks ago and our IT just got it back up.

In comparing the output you sent with our FC2 system, the only difference I see is the build date for the linux kernel. The version is the same but the build date on ours is '2004-05-11'. This may or may not be significant, I'm not really sure.

What I'd like to do is wait a few weeks until the 6.0 release is out and then try again. If this doesn't work then I'll have our IT update our Fedora Core 2 to match yours and we'll investigate further. However, the 6.0 version will most likely take care of the problem.

Back to top
View user's profile

Joined: 24 Mar 2006
Posts: 1

PostPosted: Fri Mar 24, 2006 8:33 am    Post subject: Reply with quote


I just started using pgdbg today, but I appear to be having exactly the same problem as above. However, I am using the newest version (I believe). Here's the message I get when I start the debugger:

$ debugt num7.txt

PGDBG 6.1-3 x86 (Workstation, 4 CPU)
Copyright 1989-2000, The Portland Group, Inc. All Rights Reserved.
Copyright 2000-2005, STMicroelectronics, Inc. All Rights Reserved.
***Reading DWARFv2 Information.
Loaded: /mach2_debug/m2trk/m2

pgdbg> r
Signalled SIGSEGV at 0x44b950, function _dl_debug_state
44b950: 55 pushl %ebp

The output from /lib/ is

GNU C Library stable release version 2.3.5, by Roland McGrath et al.
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
Compiled by GNU CC version 3.4.3 20050227 (Red Hat 3.4.3-22).
Compiled on a Linux 2.4.20 system on 2005-04-07.
Available extensions:
GNU libio by Per Bothner
crypt add-on version 2.1 by Michael Glad and others
linuxthreads-0.10 by Xavier Leroy
The C stubs add-on version 2.1.2.
NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
Glibc-2.0 compatibility add-on by Cristian Gafton
GNU Libidn by Simon Josefsson
libthread_db work sponsored by Alpha Processor Inc
Thread-local storage support included.
For bug reporting instructions, please see:

And uname -a gives

2.6.10-1.770_FC3smp #1 SMP Thu Feb 24 18:36:43 EST 2005 x86_64 x86_64 x86_64 GNU/Linux

Is there any fix for this problem?
Back to top
View user's profile
Display posts from previous:   
Post new topic   Reply to topic    PGI User Forum Forum Index -> Debugging and Profiling All times are GMT - 7 Hours
Goto page Previous  1, 2
Page 2 of 2

Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © phpBB Group