[3288] in Athena Bugs

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[Bill Sommerfeld: "attach" feature for ptrace.]

daemon@ATHENA.MIT.EDU (Ken Raeburn)
Sun Sep 24 16:07:31 1989

Date: Sun, 24 Sep 89 16:07:17 -0400
From: Ken Raeburn <Raeburn@MIT.EDU>
To: bugs@MIT.EDU

For consideration...

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From: Bill Sommerfeld <wesommer@ATHENA.MIT.EDU>
Subject: "attach" feature for ptrace.

see the attached note from Tim Shepard.

being able to attach, using a debugger, to arbitrary currently running
processes is a big win; it might be worthwhile to see if we can pick
that up here, or if these changes can be fed back to Berkeley for 4.4...

This probably fits into the 7.x timeframe.

						- Bill

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[0263] shep@LCS.MIT.EDU  Allspice_Maintenance  08/16/89 00:14 (28 lines)
Subject: X10 & RFS gone,  new kernel & ps & pstat need to go together
Date: Wed, 16 Aug 89 00:12:16 EDT
From: Tim Shepard <shep@PTT.LCS.MIT.EDU>
To: allspice-announcements@PTT.LCS.MIT.EDU


As promised earlier, x10 stuff has been removed from /usr on
ALLSPICE and RFS has been removed from the kernel and from /etc.


JTW added attach/detach support to ptrace.  The size of the proc
structure changed, so ps, pstat, and systat needed to be updated.
The new /bin/ps, /etc/pstat, /usr/ucb/w, and /usr/ucb/systat will
not work with the old kernel, so after your next reconcile you will
discover that ps, pstat, w, and systat will not work until you get a
new kernel.


Coming someday is a reconcile which
	1) is more careful about removing symbolic links
   and  2) will produce a list of files which you might want to
           consider removing.  (This should help greatly with
	   getting all the X10 stuff cleaned off of your servers.)

(I've already have the code for these working but I don't trust it yet.)

	Back to my thesis,

		-Tim
--[0263]--

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