[ExM Users] debugging suggestions for non-static main-wrap segfault

[Tim Armstrong]

I forgot to reply all earlier, re-including the list.

How are you running tclsh?


On Tue, Jul 29, 2014 at 11:53 AM, Ketan Maheshwari <ketan at mcs.anl.gov>
wrote:

> when I try tclsh, it does not do anything. Just returns with an exit
> status 0.
>
>
> On Tue, Jul 29, 2014 at 11:02 AM, Tim Armstrong <tim.g.armstrong at gmail.com
> > wrote:
>
>>  You can run it directly with tclsh or mpiexec tclsh, which is what
>> turbine eventually does after setting up environment variables, etc.
>>
>>  - Tim
>>
>>
>> On Tue, Jul 29, 2014 at 10:57 AM, Ketan Maheshwari <ketan at mcs.anl.gov>
>> wrote:
>>
>>> Is it possible to run the dock_wrap.tcl outside of turbine just as in
>>> the case of static build?
>>>
>>>
>>>
>>>
>>>  On Tue, Jul 29, 2014 at 10:45 AM, Wozniak, Justin M. <
>>> wozniak at mcs.anl.gov> wrote:
>>>
>>>>
>>>> Ok, it's in.  The Swift/K SVN is apparently down so it's not on the web
>>>> yet but see the asciidoc.
>>>>
>>>> On 07/29/2014 10:21 AM, Justin M Wozniak wrote:
>>>>
>>>>
>>>> I thought VALGRIND was in the manual already but it isn't.  I will add
>>>> it now.  I will also talk about our GDB feature.
>>>>
>>>> On 07/29/2014 10:17 AM, Ketan Maheshwari wrote:
>>>>
>>>> Thanks! Seems turbine script already had a placeholder for Valgrind so
>>>> I tried that and from the output, it seems tcl libraries are causing
>>>> segfault but I may be wrong. Attached is the Valgrind output.
>>>>
>>>>
>>>>
>>>> On Tue, Jul 29, 2014 at 10:05 AM, Tim Armstrong <
>>>> tim.g.armstrong at gmail.com> wrote:
>>>>
>>>>>  I don't have any particular insight into the cause of the segfault,
>>>>> I can help with the debugger though.
>>>>>
>>>>> You need to point gdb at the tclsh that is being used by turbine
>>>>> (which is just a shell script).  You can locate the correct tclsh by
>>>>> looking at TCLSH in scripts/turbine-config.sh in the turbine install
>>>>> directory.
>>>>>
>>>>>  - TIm
>>>>>
>>>>>
>>>>>  On Tue, Jul 29, 2014 at 10:00 AM, Ketan Maheshwari <ketan at mcs.anl.gov
>>>>> > wrote:
>>>>>
>>>>>>  Hi,
>>>>>>
>>>>>>  Trying to main-wrap DOCK 6.6 application for ATPESC, I get the
>>>>>> build right (seems) but things fail at runtime giving segfault:
>>>>>>
>>>>>>  $ turbine -n 4 user-code.tcl
>>>>>>
>>>>>>
>>>>>> ===================================================================================
>>>>>> =   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
>>>>>> =   EXIT CODE: 139
>>>>>> =   CLEANING UP REMAINING PROCESSES
>>>>>> =   YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
>>>>>>
>>>>>> ===================================================================================
>>>>>> YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault
>>>>>> (signal 11)
>>>>>> This typically refers to a problem with your application.
>>>>>> Please see the FAQ page for debugging suggestions
>>>>>>
>>>>>>  This is on MCS machine. Any suggestion to debug this? I tried gdb
>>>>>> but it gives:
>>>>>>
>>>>>>   "/nfs2/ketan/exm-install/turbine/bin/turbine": not in executable
>>>>>> format: File format not recognized
>>>>>>
>>>>>>  With strace, I see some signs of missing files but not sure if that
>>>>>> is the cause of segfault. Attached is the strace output of:
>>>>>>
>>>>>>  strace -o strace.out turbine -n 4 user-code.tcl
>>>>>>
>>>>>>  The code has some MPI and pthread elements but does not use them as
>>>>>> far as I understand.
>>>>>>
>>>>>>  Thanks for any suggestions.
>>>>>>
>>>>>>  --
>>>>>> Ketan
>>>>>>
>>>>>>  _______________________________________________
>>>>>> ExM-user mailing list
>>>>>> ExM-user at lists.mcs.anl.gov
>>>>>> https://lists.mcs.anl.gov/mailman/listinfo/exm-user
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> ExM-user mailing listExM-user at lists.mcs.anl.govhttps://lists.mcs.anl.gov/mailman/listinfo/exm-user
>>>>
>>>>
>>>>
>>>>   --
>>>> Justin M Wozniak
>>>>
>>>>
>>>>
>>>> --
>>>> Justin M Wozniak
>>>>
>>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/exm-user/attachments/20140729/6f5990e2/attachment.html>