Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rice!sun-spots-request
From: uunet!charyb!dan@uunet.uu.net (Dan Mick)
Newsgroups: comp.sys.sun
Subject: Re: HELP (PLEASE) ld.so: map heap error (22) for /dev/zero  ??????
Keywords: SunOS
Message-ID: <5744@brazos.Rice.edu>
Date: 13 Mar 90 20:20:16 GMT
Sender: root@rice.edu
Organization: Sun-Spots
Lines: 16
Approved: Sun-Spots@rice.edu
X-Refs:  Original: v9n80
X-Sun-Spots-Digest: Volume 9, Issue 80, message 11

In article <5714@brazos.Rice.edu> pekak@erilin.nokia.se (Pekka Akselin) writes:
|X-Sun-Spots-Digest: Volume 9, Issue 80, message 10
|
|I have a diskless Sun 3/50 which I have tried to boot from a server.  All goes
|well except for one thing: I get an error message which says
|
|     ld.so: map heap error (22) for /dev/zero

I'd be willing to bet something untoward has happened to /dev/zero; it's
supposed to be a magical character device that returns as many zeroes as
the reader desires, and I'll bet it's gotten erased and replaced with a
normal file, or just plain erased...

ld.so uses /dev/zero to clear its own bss (by mapping /dev/zero to the
proper pages).  The lack of any immediate mention in the manuals is
reprehensible.