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From: Ferris McCormick (fmccor_at_[hidden])
Date: 2005-09-12 13:05:39


On Mon, 2005-09-12 at 11:14 -0500, Brian Barrett wrote:
> Thanks for the heads up. We are not seeing this on other platforms,
> so it might be a Sparc-specific issue. Any chance you could compile
> with debugging symbols and generate a backtrace? Also, could you
> send the contents of /proc/cpuinfo (long story...)?
>
> Thanks!
>
> Brian
>
Here's /proc/cpuinfo from the SB1000:
=====================================
fmccor_at_polylepis AGT [93]% cat /proc/cpuinfo
cpu : TI UltraSparc III (Cheetah)
fpu : UltraSparc III integrated FPU
promlib : Version 3 Revision 13
prom : 4.13.0
type : sun4u
ncpus probed : 2
ncpus active : 2
Cpu0Bogo : 598.01
Cpu0ClkTck : 0000000035a4e900
Cpu1Bogo : 598.01
Cpu1ClkTck : 0000000035a4e900
MMU Type : Cheetah
State:
CPU0: online
CPU1: online
========================================

And here's a back-trace from ompi_info:
==========================================
Program received signal SIGSEGV, Segmentation fault.
opal_output_close (output_id=1880710872) at opal_object.h:409
409 for (i = 0; i < cls->cls_depth; i++) {
Current language: auto; currently c
(gdb) bt
#0 opal_output_close (output_id=1880710872) at opal_object.h:4
#1 0x700d8e00 in mca_topo_base_close () at topo_base_close.c:46
#2 0x00016aa4 in close_components () at components.cc:254
#3 0x00018bbc in main (argc=1, argv=0xefa253f4) at ompi_info.cc:251
=============================================
HOWEVER: If I configure with --enable-debug, two things happen:
1. I have to build ompi/mca/rcache/rb by hand because of incorrect
CFLAGS;
2. The SegFault disappears.

(The line# in #0 above is incorrect; by accident I edited the email as I
was writing it and erased too much. I can rebuild with '-g' but not
with --enable-debug if necessary.)
====================================
Other failing system:
fmccor_at_lacewing openmpi-1.0a1r7305 [96]% cat /proc/cpuinfo
cpu : TI UltraSparc II (BlackBird)
fpu : UltraSparc II integrated FPU
promlib : Version 3 Revision 19
prom : 3.19.0
type : sun4u
ncpus probed : 2
ncpus active : 2
Cpu0Bogo : 799.53
Cpu0ClkTck : 0000000017d746a8
Cpu1Bogo : 799.53
Cpu1ClkTck : 0000000017d746a8
MMU Type : Spitfire
State:
CPU0: online
CPU1: online
===========================
Regards,

-- 
Ferris McCormick (P44646, MI) <fmccor_at_[hidden]>
Developer, Gentoo Linux (Sparc, Devrel)