[petsc-users] Attaching to gdb within screen

[John Fettig]

On Wed, Jun 22, 2011 at 8:53 AM, Jed Brown <jed at 59a2.org> wrote:
> On Wed, Jun 22, 2011 at 14:43, John Fettig <john.fettig at gmail.com> wrote:
>>
>> I'm using mpich2-1.3.2p1 My screen version (which is hopefully not
>> important) is  4.00.03.
>
> Interesting. Which operating system? When some processes attach
> successfully, what does the backtrace from gdb look like?

I'm using CentOS 5.6.  Here's the backtrace from -np 2 (where only one
gdb is launched):

#0  0x000000310ee9a510 in __nanosleep_nocancel () from /lib64/libc.so.6
#1  0x000000310ee9a364 in sleep () from /lib64/libc.so.6
#2  0x00002b37a6601a83 in PetscSleep (s=10) at psleep.c:56
#3  0x00002b37a5ef049b in PetscAttachDebugger () at adebug.c:410
#4  0x00002b37a6302351 in PetscOptionsCheckInitial_Private () at init.c:392
#5  0x00002b37a65cdeb6 in PetscInitialize (argc=0x7fff636a6d3c,
args=0x7fff636a6d30, file=0x0, help=0x9f3d4d "") at pinit.c:639
#6  0x0000000000409ac4 in main (argc=2, argv=0x7fff636a6ee8) at main.c:694

John