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Full Discussion: Profiling Processes while shutdown
Operating Systems Linux Debian Profiling Processes while shutdown Post 302982122 by jim mcnamara on Saturday 24th of September 2016 09:57:31 AM
Old 09-24-2016
We had a problem like this in Solaris 10. There was an issue with using NFS across zones on the same system. It hung in certain circumstances.
The point I am trying to make: it may not be a process but a relationship between processes and their current status.

You are assuming a single process is the problem, which is okay, but you ma want to think "larger", multiple process or a device and some process group.

What you gave us is a start, we need more:
Code:
1. is the box standalone - not clustered, no NFS mounts, no samba mounts, etc?
2. does the box actually come down?
3. how much extended time does it take to come down.
    Ex: yesterday it came down in 30 seconds, today it came down in 10 minutes.
4. did you install new software in the near past, and did you get errors on install

 

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LEARN ABOUT OPENSOLARIS

shutdown

shutdown(1B)					     SunOS/BSD Compatibility Package Commands					      shutdown(1B)

NAME

       shutdown - close down the system at a given time

SYNOPSIS

       /usr/ucb/shutdown [-fhknr] time [warning-message]...

DESCRIPTION

       shutdown  provides  an  automated procedure to notify users when the system is to be shut down. time specifies when shutdown will bring the
       system down; it may be the word now (indicating an immediate shutdown), or it may specify a future time in one of two formats: +number  and
       hour:min.  The  first  form brings the system down in number minutes, and the second brings the system down at the time of day indicated in
       24-hour notation.

       At intervals that get closer as the apocalypse approaches, warning messages are displayed at terminals of all logged-in users, and of users
       who have remote mounts on that machine.

       At  shutdown  time a message is written to the system log daemon, syslogd(1M), containing the time of shutdown, the instigator of the shut-
       down, and the reason. Then a terminate signal is sent to init, which brings the system down to single-user mode.

OPTIONS

       As an alternative to the above procedure, these options can be specified:

       -f    Arrange, in the manner of fastboot(1B), that when the system is rebooted, the file systems will not be checked.

       -h    Execute halt(1M).

       -k    Simulate shutdown of the system. Do not actually shut down the system.

       -n    Prevent the normal sync(2) before stopping.

       -r    Execute reboot(1M).

FILES

       /etc/rmtab    remote mounted file system table

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       fastboot(1B), login(1), halt(1M), reboot(1M), syslogd(1M), sync(2), rmtab(4), attributes(5)

NOTES

       Only allows you to bring the system down between now and 23:59 if you use the absolute time for shutdown.

SunOS 5.11							    11 Oct 1994 						      shutdown(1B)
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