My solaris 2.3 ps won't show any processes
2007-12-25 8:59:00
the problems fixed (or I expect they will be after the next reboot)
The "ps" part of the problem was apparently my own fault for "twiddling" with
/etc/vfstab without watching what I was doing. I managed to set things up
so that /proc and /fd were either not mounted or were mounted wrong, and without
/proc, ps won't show anything.
Just to be safe, I also touched /var/ps_data.
As to the openwindows problem, that may be result of that same twiddling of vfstab,
.. I think /usr and/or "/" wound up mounted suid instead of nosuid, .. anyway,
I applied some of the other fixes suggested, and after the next reboot, I hope
things will be straight again.
My thanks to all the respondents mentioned below ..
<signed>
H.Modell
_____________________________________________________________________
Howard Modell (206)662-0189
Adv.Computing Technologist/2 POBox 3707, m/s 4C-63, Boeing D&SG
howie@warlok.ds.boeing.com Seattle, WA 98124-2207
<A HREF="http://xavier.ds.boeing.com/users/howie/"> HSM </A>
My original post was:
===============================
} Subject: My solaris 2.3 ps won't show any processes
}
} This is a Solaris 2.3 problem:
}
} What would cause/inhibit both /usr/ucb/ps and /usr/bin/ps so that they
} won't show any processes regardless of options?
}
} I was fine until this morning when I installed patch 101362-12. I've tried
} backing the patch out, and it claims it did so successfully, but this curious
} problem remains.
}
} another symptom is that somthing changes permissions on things in /devices,
} the result being that noone except root can use Open Windows until the /devices
} are "unlocked" again. I've tried restoring /usr/openwin from backup, but
} this didn't cure the problem.
}
} Help? What'd I do wrong?
}
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the responses included:
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One thing you may want to check with the ps problem is if /proc is
mounted type proc (not type ufs). If it is mounted ufs (check mnttab),
then ps will appear to work but not show any ps information.
Good luck!
John
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Check to see if the /proc file system mounted. type df -k and check your
vfstab file. It should be mountewd. Also check to see your PATH it must
have been blocked by another new PATH that might have been defined, First
make sure that /proc fs is mounted .
regards
srini
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regarding the problems with ps, try rebooting, if this fixes the ps
problem then look for something that is corrupting utmp. This happend to
me in a SVR4 system. the vendor issues a new release with a cron job that
trimed a little to much of utmp and wtmp.
Good Luck, Let me know what happens.
Paul Borchardt
BNP/CooperNeff
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I would check for ..
1) is /proc mounted..
2) Is the module fs/prcofs loaded
3) does ps what setuid bit on
4) if usr is nfs mounted, is it mounted with nosuid option
Regarding the openwin problem, check option 4
- Ram
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I had the same problem this weekend. It turns out a link sometimes gets
hosed. The file /dev/bd.off should be linked to /dev/term/b.
You can delete the file /dev/bd.off and then do a boot -r from the
ok prompt. OR, you can rm /dev/bd.off and run "bdconfig off"
OR, you can manually link it and reboot.
Thomas Jordan
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try doing
touch /var/ps_data
then run ps..
sue
Susan KJ Thielen Application Programmer, System Manager
Imaging Lab, Robarts Research Institute Phone: (519) 663-3833
PO Box 5015, 100 Perth Drive Fax: (519) 663-3900
London, ON N6A 5K8 Canada E-mail: thielen@irus.rri.uwo.ca
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This next one was off-base, but I appreciate the effort and the response!
-howie
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>From ltaylor@hootowl.bbn.com Wed Apr 12 06:39:49 1995
Date: Wed, 12 Apr 1995 09:40:07 -0400
From: Laura Taylor <ltaylor@hootowl.bbn.com>
To: howie@warlok.ds.boeing.com
Subject: Re: My solaris 2.3 ps won't show any processes
Well, I hate to be the bearer of bad news, but often when hackers
invade your system, they put in place binaries that specifically
do not show up certain processes, and ps is among the first five
binaries they probably change. You can't tell by doing a checksum,
because they have programs that pad the binary and make the checksums
match.
When you invoke ps, if the following switch shows up things that
the normal ps doesn't show up, someone probably put in a bogus ps
and could be doing terrible things to your network, like sniffing
packets.
Try this:
ps -/aux | more
(It is the -/ switch that you are looking for.)
---------------------------------------------------------------
BBN Systems & Technologies | Laura Taylor Sr. Systems Administrator
10 Moulton Street | Sr. Systems Administrator
Cambridge, Ma. 02138 | ltaylor@bbn.com
U.S.A | FAX (617) 873-5137
---------------------------------------------------------------
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Check /proc in your vfstab file. Either its
missing or somewhere in the process of things
it got un-mounted.
Bill Holzapfel
dcVAST Inc.
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This may sound strange... but it happened here.
You need to configure your "Button and Dial" peripheral device and then
turn it off. The command is bdconfig (see man pages). You set it to a
serial port (we set ours to c) but it doesn't make any difference because
you turn it off.
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>From Phyllis.Bahue@Ebay.Sun.COM Wed Apr 12 09:09:44 1995
This could be caused by not having /proc mounted. Make sure the entry
is correct in /etc/vfstab and reboot.
Phyllis
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>From moby!mink!singhjk@ilium.troy.msen.com Wed Apr 12 12:12:31 1995
Run truss on ps with the command
truss -o truss.out ps -ef
in single user mode.
Sometimes ps loops in /dev and look for some devices pointing to nothing
in the truss.out file. Try unlinking those devices and run ps again. If ps
is successful exit out of the single user mode.
Since cron runs ps and the ps is looping the machine hangs and acts
strange. Thanks!!
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Sounds pretty strange. I don't have experience with this problem,
but if "ps" doesn't work, check the permissions on /dev/men
and /dev/kmem (and "ps") Can you do "ps" as root? You don't say what
patch 101362-12 is for... sounds like you have permission problems.
--
James Buszard-Welcher | jwelcher@systems.DHL.COM | "Just don't create a
DHL Systems, Inc. | phone 312.248.3097 | file called -rf."
UNIX/Network Consultant | vmail 415.375.5324 | -Larry Wall
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