Runaway Processes (I think) Post: 302555472

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Operating Systems AIX Runaway Processes (I think) Post 302555472 by juredd1 on Wednesday 14th of September 2011 10:10:37 PM

09-14-2011

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I apologize for the delay in responding and want to thank you both for responding. I am positive it did not look the same before the upgrade. I actually rolled a server back to AIX 5.3TL06 so I would have something to compare against. All is well on that server and it's a full time job keeping the runaway processed killed on the other 7 servers so it does not crash or become unresponsive.

Unless I am reading the vmstat output wrong yes the box is being pressed pretty good. I played with the headers a bit trying to line up the colmuns for easier reading.

Code:

root@foobar:/ $ vmstat 5

System configuration: lcpu=8 mem=32000MB

kthr    memory              page              faults        cpu
----- ----------- ------------------------ ------------ -----------
 r  b   avm        fre         re   pi  po  fr   sr  cy  in   sy           cs    us sy  id wa
 6  0 479587 7652047   0   0   0   0    0   0  39 1953234 382 48 52  0  0
 6  0 479587 7652047   0   0   0   0    0   0  34 1951368 354 48 52  0  0
 6  0 479587 7652047   0   0   0   0    0   0  39 1947601 385 48 52  0  0

I provided IBM support with perfpmr data and it took them a bit but came back with a possible bug. After getting a core dump of the process it was confirmed that there is an APAR in the works from a previous PMR. Below is the APAR discription. This matches up with the report they sent me from the perfpmr data.

A SIGHUP'D PROCESS HANGS, REPEATEDLY CALLING PTHREAD_YIELD

An ifix is currently in the works. I just hope and pray this is the issue.

Not sure it applied to anyone but can update when it's applied if that is preferred.

juredd1

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LEARN ABOUT DEBIAN

nwdiag

NWDIAG(1)						      General Commands Manual							 NWDIAG(1)

NAME

       nwdiag - generate network-diagram image file from spec-text file.

SYNOPSIS

       nwdiag [options] files

DESCRIPTION

       This manual page documents briefly the nwdiag commands.

       nwdiag is generate sequence-diagram image file from spec-text file.

OPTIONS

       These  programs	follow	the  usual  GNU  command  line	syntax, with long options starting with two dashes (`-').  A summary of options is
       included below.	For a complete description, see the Info files.

       -h, --help
	      show this help message and exit.

       --version
	      show program's version number and exit.

       -a, --antialias
	      Pass diagram image to anti-alias filter.

       -c FILE, --config=FILE
	      read configurations from FILE.

       -o FILE
	      write diagram to FILE.

       -f FONT, --font=FONT
	      use FONT to draw diagram.

       -T TYPE
	      Output diagram as TYPE format.

SEE ALSO

       The programs are documented fully by
       http://blockdiag.com/en/nwdiag/

AUTHOR

       nwdiag was written by Takeshi Komiya <i.tkomiya@gmail.com>

       This manual page was written by Kouhei Maeda <mkouhei@palmtb.net>, for the Debian project (and may be used by others).

								   June 11, 2011							 NWDIAG(1)

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