[mpich-discuss] mpdboot hangs, but ...

[Dave Goodell]

Thanks Scott.  I'll take another crack at reproducing this locally.

-Dave

On Dec 14, 2009, at 9:37 AM, Scott Atchley wrote:

> Dave,
>
> I can reproduce it at will. More info below. I am using two host  
> (shower03 and shower04) with four cores each. I am launching from  
> shower03. My hosts file is:
>
> % cat hosts.mpd
> shower03:4
> shower04:4
>
> I am calling mpdboot with:
>
> % mpdboot -n 2 -f hosts.mpd --ncpus=4 --mpd=`which mpd` --rsh=ssh -v
> running mpdallexit on shower04
> LAUNCHED mpd on shower04  via
> RUNNING: mpd on shower04
> LAUNCHED mpd on shower03  via  shower04
>
> I have strace and gdb backtrace for mpdboot below. It is still hung.  
> Let me know if you want backtraces from either of the mpds.
>
> Scott
>
>
>
> (gdb) info threads
> * 1 Thread 0x2aaaaaab7f90 (LWP 23351)  0x0000003d508c5f00 in  
> __read_nocancel () from /lib64/libc.so.6
> (gdb) bt
> #0  0x0000003d508c5f00 in __read_nocancel () from /lib64/libc.so.6
> #1  0x0000003d5086b853 in _IO_file_xsgetn_internal () from /lib64/ 
> libc.so.6
> #2  0x0000003d50861c82 in fread () from /lib64/libc.so.6
> #3  0x0000003d51846507 in ?? () from /usr/lib64/libpython2.4.so.1.0
> #4  0x0000003d5189497a in PyEval_EvalFrame () from /usr/lib64/ 
> libpython2.4.so.1.0
> #5  0x0000003d51894426 in PyEval_EvalFrame () from /usr/lib64/ 
> libpython2.4.so.1.0
> #6  0x0000003d51894426 in PyEval_EvalFrame () from /usr/lib64/ 
> libpython2.4.so.1.0
> #7  0x0000003d518958a5 in PyEval_EvalCodeEx () from /usr/lib64/ 
> libpython2.4.so.1.0
> #8  0x0000003d518958f2 in PyEval_EvalCode () from /usr/lib64/ 
> libpython2.4.so.1.0
> #9  0x0000003d518b1f29 in ?? () from /usr/lib64/libpython2.4.so.1.0
> #10 0x0000003d518b33d8 in PyRun_SimpleFileExFlags () from /usr/lib64/ 
> libpython2.4.so.1.0
> #11 0x0000003d518b980d in Py_Main () from /usr/lib64/libpython2.4.so. 
> 1.0
> #12 0x0000003d5081d994 in __libc_start_main () from /lib64/libc.so.6
> #13 0x0000000000400629 in _start ()
> (gdb)
>
>
>
> <bt.txt.gz>
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