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20011205: 20011204: pqact dumping core on Solarisx86 at NSBF


Robert,

To use dbx with your Solaris compilers:

1) verify that the core file is from pqact with "file core"

2) run "dbx ~ldm/bin/pqact core"


   then at the dbx prompt, type "where".


Unfortunately, if the executable is stripped, then the core file may
not shead much light on what routine is being run. Otherwise, it
will show what routine the program is in when it exits. If the code
is compiled with the -g flag, then the line numbers of the statements
will be provided.

Steve Chiswell
Unidata User SUpport





>From: "Robert Mullenax" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200112052128.fB5LS6N17549

>
>
>
>>
>>If pqact fails abnormally, then the lead rpc.ldmd should shut down the
>>LDM.  In this case, you should see some messages at the end of
>>ldmd.log, but they will not tell you why the LDM is being shut down.
>
>This is the weird part..when the ldm on psnldm shut down, it was
>written to ldmd.conf.  on wxmcidas it was logging the decoding
>of profiler files..and then nothing..no exiting, no errors, no nothing.
>>
>> >There is a core file from pqact.
>>
>>Good.  If you built the LDM from source, you can use dbx to find out
>>what happened to pqact to make it die.  There are a few situations that
>>could cause this:
>
>I am not familiar with dbx, I'll have to read up on that.
>>
>>
>>ldmadmin pqactcheck
>
>That's fine..pqactcheck is fine.
>>
>>Next, make sure that you do not have any exceedingly long lines in
>>pqact.conf.
>
>I'll look but I think I just have the entries from the Unidata web site.
>
>>
>>If both of the above are OK, I would try deleting and remaking your
>>queue.  If that doesn't work, I would be highly suspicious of your
>>pqact executable.
>I haven't changed the executable..
>
>It has been working fine now since I deleted and rebuilt the queue
>after it crashed.  It's really strange.  I will take a look at the core 
>file.
>
>Thanks,
>Robert

>From address@hidden Wed Dec  5 21:20:30 2001
>Cc: address@hidden, address@hidden,
>   address@hidden
>Subject: Re: 20011205: 20011204: pqact dumping core on Solarisx86 at NSBF

Unfortunately this afternoon, one of my NCEP scripts had a problem
and dcgrib2 core dumped, overwriting the core file that was there
from pqact.  I'll just have to wait for it to happen again.

Thanks,
Robert