waitid breaks telnet

[Joe Korty]

[ 2nd send, this one from my home email account...]

telnet no longer works:

    # chkconfig telnet on
    # telnet localhost
    Trying 127.0.0.1...
    Connected to localhost (127.0.0.1).
    Escape character is '^]'.
    Red Hat Enterprise Linux WS release 3 (Taroon Update 2)
    Kernel 2.6.10-rc2 on an i686
    Connection closed by foreign host.

A bsearch placed the bug between 2.6.9-rc1-bk[78], another
bsearch on the changesets showed the problem is caused
by this patch:

    roland@xxxxxxxxxx[torvalds]|ChangeSet|20040831173525|30767
    [PATCH] waitid system call

My guess is, something about the new wait4(2) wrapper
is causing the telnet daemon to declare success before
its child, /bin/login, exits.

Joe

[PS: this email may not get through, our email servers
changed recently and I have been having problems.  Roland,
please ACK me privately as soon as you see this.  Thanks] 

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