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From: danj1@ihlpa.att.com (Daniel Jacobson)
Newsgroups: gnu.emacs.bug
Subject: GNU Emacs sticking on "USG" type systems
Message-ID: <9010021732.AA19104@life.ai.mit.edu>
Date: 2 Oct 90 16:25:04 GMT
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>>>>> On 1 Oct 90 21:32:59 GMT, jot@FIG.CRAY.COM (Otto Tennant) said:

Otto> product, we found that Emacs would hang intermittently
Otto> whenever one attempted a 'dired' or 'man' command.
Otto> "Intermittent" here just means "not every time."  The hangs
Otto> were frequent enough to make the implementation useless.
Well, for us it's "hit ^G and try again"

Otto> We are pretty sure what the problem is.  UNICOS is a "USG"
Otto> type system (whatever that means.)  However, if we are
Otto> correct, the problem should occur with greater or lesser
Otto> frequency on any "USG" type system.

Yes, this is what we have in our local tips file:

|in 3/1990 Boris_B_Kofman@ATT.COM wrote:
|>I am using [exptools] GNU Emacs 18.55. Every so often a function hangs. 
|>This most often happens to 'vm', when it starts getting new mail, 
|>but never finishes. I've  also seen 'dired' and 'rmail' hang.
|>Does anybody else have that problem? Any idea what the fix is?
|
|Yeah, I bet you're using an Amdahl/IBM, we thought we had a fix, but no,
|no fix.  There is also something called, I believe, `Doug Gwyn's
|directory accessing functions for System V,' but this is a big effort
|or we have to be superuser or something...
|
|For now I just use Control-G [once], then do my command again...  when
|it stalls sending mail in VM I check to see if the mail got sent with
|"fgrep $LOGNAME /usr/mail/mail.log | tail" from a shell.  It usually
|did get sent, so I then kill the "*mail*" buffer.  Of course there are
|other mail sending variable settings you should use for now too, like
|mail-interactive and vm-strip-reply-headers... see the other tips
|directory files.
|
|Other potential hangers on an Amdahl/IBM (do a Control-G and try again):
|Dired (C-x d), shell-command (M-!), shell-command-on-region (M-|),
|ispell stuff.

Oh, the Amdahl's `uname` says "uts ihlpa 5.2.6b 5 5890" a localism,
meaning based on "SYS V.2" with some SYS V.3 add-on's or something.

It doesn't seem to occur on System V "3.2.2 3 3B2" (`uname` output).

[I'm just reporting the symptoms.]

Dan_Jacobson@ATT.COM  Naperville IL USA  +1 708-979-6364