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Re: Possible tail bug


From: Jim Meyering
Subject: Re: Possible tail bug
Date: Sat, 12 Dec 2009 16:41:44 +0100

Marc Perkel wrote:
> Just noticed this having upgraded to Fedora 12. I use tail -F to
> follow a file that vanishes and is recreated once a minute. It works
> for some time but eventually tail quits and goes back to the command
> prompt. Just thought I'd let you know in case you changed something.
>
> tail: `info.log' has become inaccessible: No such file or directory
> tail: `info.log' has appeared;  following end of new file
> ver-good budgetschooltours.ie
> ver-good 202.offersforme.net
> ver-good vistagy.com
> ver-good estatements.rbsnbonline.com
> ver-good antiqbook.com
> ver-bad ns207154.ovh.net
> ver-good ventech-eng.com
> tail: `info.log' has become inaccessible: No such file or directory
> tail: `info.log' has appeared;  following end of new file
> ver-good wunderman.rjs0.com
> ver-good m.e.harryanddavid.com
> ver-good wunderman.rjs0.com
> ver-good cinci.rr.com
> ver-good tee.gr
> tail: `info.log' has been replaced;  following end of new file
> ver-good mchsi.com
> ver-good joann-mail.com
> ver-good marplesteam.com
> ver-good tee.gr
> ver-good localnet.com
> tail: `info.log' has become inaccessible: No such file or directory
> address@hidden tmp]#

Thanks for the report.

Can you reproduce that even with the very latest?
coreutils-8.2 was released yesterday:

    ftp://ftp.gnu.org/gnu/coreutils/coreutils-8.2.tar.xz
    ftp://ftp.gnu.org/gnu/coreutils/coreutils-8.2.tar.gz

and 8.1 includes a related fix:

    tail -F (inotify-enabled) now consistently tails a file that has been
    replaced via renaming.  That operation provokes either of two sequences
    of inotify events.  The less common sequence is now handled as well.
    [The bug came with the implementation change in coreutils-7.5]

F12 is based on coreutils-7.6.




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