Re: Patch: CLONE_PPID (was kernel thread support - LWP's)

allbery@kf8nh.apk.net
Tue, 20 Jul 1999 20:31:46 -0400 (EDT)

On 20 Jul, Alan Curry wrote:
+-----
| Jeremy Fitzhardinge writes the following:
| >On 20-Jul-99 Matthew Kirkwood wrote:
| >> There may be code out there which gets confused on receiving a SIGCLD
| >> for (or wait()ing on) a child which it doesn't remember creating.
| >
| >Any process can have children it doesn't know about creating, so this is not a
| >new situation. It doesn't seem worth adding cruft to prevent.
|
| Are you prepared to give an example?
+--->8

Any process that fork()s without wait()ing, then in the parent exec()s
something else. The new image won't have any clue about the forked
child.

-- 
brandon s. allbery	   os/2,linux,solaris,perl	allbery@kf8nh.apk.net
system administrator	   kthkrb,heimdal,gnome,rt	  allbery@ece.cmu.edu
carnegie mellon / electrical and computer engineering			kf8nh
    We are Linux. Resistance is an indication that you missed the point.




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