GNU bug report logs - #34355
Emacs confusion with file locking after hostname change

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Package: emacs; Reported by: "Ulrich Windl" <Ulrich.Windl@HIDDEN>; Keywords: confirmed; dated Wed, 6 Feb 2019 22:23:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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From: Glenn Morris <rgm@HIDDEN>
To: "Ulrich Windl" <Ulrich.Windl@HIDDEN>
Subject: Re: bug#34355: Emacs confusion with file locking after hostname change
References: <5C5B5DFF020000A10002F8A9@HIDDEN>
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In-Reply-To: <5C5B5DFF020000A10002F8A9@HIDDEN> (Ulrich
 Windl's message of "Wed, 06 Feb 2019 23:21:51 +0100")
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"Ulrich Windl" wrote:

> In Emacs 25.3.1 I had the problem that Emacs refuses to save a
> modified buffer after plugging in the network cable: The hostname
> changed through DHCP, and now Emacs says the file is locked by another
> user with some PID. However that PID is the only Emacs PID on the
> system, and it's Emacs' own PID!
> I suspect that Emacs gets the hostname once during startup, and never
> checks it again.

If it worked like that, you wouldn't have a problem.
But since https://debbugs.gnu.org/19438, system-name does change dynamically.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#34355; Package emacs. Full text available.
Added tag(s) confirmed. Request was from Glenn Morris <rgm@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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Date: Wed, 06 Feb 2019 23:21:51 +0100
From: "Ulrich Windl" <Ulrich.Windl@HIDDEN>
To: <bug-gnu-emacs@HIDDEN>
Subject: Emacs confusion with file locking after hostname change
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Hi!

In Emacs 25.3.1 I had the problem that Emacs refuses to save a modified =
buffer after plugging in the network cable: The hostname changed through =
DHCP, and now Emacs says the file is locked by another user with some PID. =
However that PID is the only Emacs PID on the system, and it's Emacs' own =
PID!
I suspect that Emacs gets the hostname once during startup, and never =
checks it again. (I could not find a match using "C-h a hostname")

Regards,
Ulrich Windl






Acknowledgement sent to "Ulrich Windl" <Ulrich.Windl@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#34355; Package emacs. Full text available.
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