From: Andreas Schwab <schwab@suse.de>
To: Peter Dyballa <Peter_Dyballa@Freenet.DE>
Cc: emacs-pretest-bug@gnu.org
Subject: Re: 23.0.50; source of warning in *shell* buffer
Date: Fri, 19 Oct 2007 14:46:33 +0200 [thread overview]
Message-ID: <jeejfr2rx2.fsf@sykes.suse.de> (raw)
In-Reply-To: <ACD9BDFA-9673-4250-AE9C-1F47CA89274B@Freenet.DE> (Peter Dyballa's message of "Fri\, 19 Oct 2007 14\:17\:13 +0200")
Peter Dyballa <Peter_Dyballa@Freenet.DE> writes:
> When I invoke M-x shell the new buffer starts with:
>
> Warning: no access to tty (Bad file descriptor).
> Thus no job control in this shell.
>
> Where is the source for these messages?
They are most likely coming from the shell.
> What are the criterions for this warning?
Probably the shell could not open /dev/tty, ie. it has no controlling
terminal. That happens when the process is using pipes instead of ptys.
> Which elements are necessary for job control?
The shell needs to be able to manipulate the process group of the
controlling terminal.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2007-10-19 12:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-19 12:17 23.0.50; source of warning in *shell* buffer Peter Dyballa
2007-10-19 12:46 ` Andreas Schwab [this message]
2007-10-19 14:27 ` Peter Dyballa
2007-10-19 16:06 ` Eli Zaretskii
2007-10-19 22:55 ` Peter Dyballa
2007-10-19 16:18 ` Jason Rumney
2007-10-19 14:13 ` Stefan Monnier
2007-10-19 15:12 ` Peter Dyballa
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