Date: Tue, 9 Apr 2002 17:50:17 +1000 (EST) From: callum.gibson@db.com To: andrew@ugh.net.au Cc: tlambert2@mindspring.com, hackers@freebsd.org Subject: Re: ipcrm/shmctl failure Message-ID: <20020409075017.18102.qmail@merton.aus.deuba.com> In-Reply-To: <20020409163218.T36127-100000@starbug.ugh.net.au> from "andrew@ugh.net.au" at Apr 09, 2002 04:32:32 PM
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At the risk of clogging up -hackers with this, I'm not going crazy...
andrew@ugh.net.au writes:
}> I replied privately to Terry, but I perhaps should have mentioned also
}> that some of these segments were days old and they were definitely not
}> in use by any process. I logout at the end of every day.
}Have you tried ipcs -p?
Sure did. I can have nothing running but a login shell and still not be
able to remove them. For example, this morning I started
a cut down X session which runs a few xterms, an xclock and an xload.
I read some mail. I exited and later started my full-blown X session for
today's work. The old X server has gone but I can't remove the shm's
it created. See below:
% ipcs -pm
Shared Memory:
T ID KEY MODE OWNER GROUP CPID LPID
m 25755648 0 --rwarwarwa callum fid 1285 1150
m 393217 0 --rwarwarwa callum fid 1285 1150
m 393218 0 --rwarwarwa callum fid 1285 1150
m 524291 0 --rwarwarwa callum fid 1285 1150
m 393220 0 --rwarwarwa callum fid 1285 1150
m 393221 0 --rwarwarwa callum fid 1285 1150
m 393225 0 --rwarwarwa callum fid 1285 1150
m 131082 0 --rw-r--r-- root wheel 999 1107
m 196619 0 --rw-r--r-- root wheel 999 1107
m 131086 0 --rw-r--r-- root wheel 999 1107
m 393234 0 --rw-r--r-- root wheel 1150 1521
m 655380 0 --rwarwarwa callum fid 1881 1150
m 262166 0 --rw-r--r-- root wheel 1150 1521
m 262167 0 --rw-r--r-- root wheel 1150 1521
m 196632 0 --rw-r--r-- root wheel 1150 1521
% ps -p 1150
PID TT STAT TIME COMMAND
1150 ?? S 11:27.97 /usr/X11R6/bin/XFree86 :0 -auth /home/callum/.Xauthor
(my current session)
% ps -p 1285
PID TT STAT TIME COMMAND
1285 p2 S 9:26.64 ./mozilla-bin
(my current web browser)
% ps -p 999
PID TT STAT TIME COMMAND
% ps -p 1107
PID TT STAT TIME COMMAND
(no matching processes, plus there are no other pids on my system in this
range)
Ok, 196619, 131086, and 393234 are from my old X session this morning.
% ipcrm -m 131082
ipcrm: shmid(131082): : Invalid argument
# ipcrm -m 131082
ipcrm: shmid(131082): : Invalid argument
As it happens I just logged out of everything again to verify this so
now I have more I can't remove. This is how it looks now:
Shared Memory:
T ID KEY MODE OWNER GROUP CPID LPID
m 25755648 0 --rwarwarwa callum fid 1285 1150
m 131082 0 --rw-r--r-- root wheel 999 1107
m 196619 0 --rw-r--r-- root wheel 999 1107
m 131086 0 --rw-r--r-- root wheel 999 1107
m 393234 0 --rw-r--r-- root wheel 1150 1521
m 655380 0 --rwarwarwa callum fid 1881 1150
m 262166 0 --rw-r--r-- root wheel 1150 1521
m 262167 0 --rw-r--r-- root wheel 1150 1521
m 196632 0 --rw-r--r-- root wheel 1150 1521
All of these fail ipcrm with Invalid argument. There are no processes
other than my login shell which weren't started at boot (pids <= 148).
Is anyone convinced this is a bug yet?
C
Callum Gibson callum.gibson@db.com
Global Markets IT, Deutsche Bank, Australia 61 2 9258 1620
### The opinions in this message are mine and not Deutsche's ###
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