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тАО04-04-2005 06:03 AM
тАО04-04-2005 06:03 AM
how to interpret info from gdb core
I got a Fortran code and unfortunately got
core dumped during execution. I ran
"gdb executable core" and got some display.
(see bottom for the partial clip) It seems
the folw of execution with subroutine names
is displayed and indicates subroutine utzerd
is where the problem occurred. What is the
meaning of +0x1c0 appearing with utzerd_?
Thanks.
Reggie
..(no debugging symbols found)...
Core was generated by `zz.bin'.
Program terminated with signal 10, Bus error.
(no debugging symbols found)...
warning: The shared libraries were not privately mapped; setting a
breakpoint in a shared library will not work until you rerun the program.
(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...#0 0x40000000001e50a0:0 in utzerd_+0x1c0 ()
(gdb) where
#0 0x40000000001e50a0:0 in utzerd_+0x1c0 ()
#1 0x4000000000b44db0:0 in asefrq_+0x4120 ()
#2 0x4000000000a87690:0 in asegst_+0x8900 ()
#3 0x4000000000165790:0 in _start+0x21f0 ()
(gdb)
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тАО04-04-2005 07:05 AM
тАО04-04-2005 07:05 AM
Re: how to interpret info from gdb core
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- debug
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тАО04-04-2005 08:42 AM
тАО04-04-2005 08:42 AM
Re: how to interpret info from gdb core
Thank you very much for the message.
After I used -g and removed -O2 in compiling
command, I did not have any error message! Do
you think the compiler might be an issue? Our
version is F90 v2.7.1.
Another possibility could be about memory allocation (clue of Bus Error). However, it
is funny w/ -g and w/o -O2 will make such a
difference.
Best regards,
Reggie
- Tags:
- optimizer
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тАО04-04-2005 09:00 AM
тАО04-04-2005 09:00 AM
Re: how to interpret info from gdb core
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тАО04-04-2005 09:14 AM
тАО04-04-2005 09:14 AM
Re: how to interpret info from gdb core
Thank you very much for the help.
Reggie
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тАО04-04-2005 01:37 PM
тАО04-04-2005 01:37 PM
Re: how to interpret info from gdb core
went away without -O2 flag.