GNU bug report logs - #26324
tail,stat: add UNIONFS (0xf15f083d)

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Kevin Bedard <kbedard <at> onboardsecurity.com>
To: bug-coreutils <at> gnu.org
Subject: Tail does not recognize .log file type
Date: Fri, 31 Mar 2017 11:26:01 -0400

[Message part 1 (text/plain, inline)]

Hello.  When I execute a ‘tail -f ‘ on my product’s log file (text based
file), I get the error below, however, the file contents is still displayed
and updated in real time.



*tail: unrecognized file system type 0xf15f083d for 'aerolink.log'. please
report this to bug-coreutils <at> gnu.org <bug-coreutils <at> gnu.org>. reverting to
polling*



Thanx,
Kevin Bedard

Principal Software Quality Assurance Engineer





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*Formerly the SI-Embedded Business Unit of Security Innovation*



187 Ballardvale Street

Suite A202

Wilmington, MA  01887

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Message #8 received at 26324 <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: Kevin Bedard <kbedard <at> onboardsecurity.com>, 26324 <at> debbugs.gnu.org
Subject: Re: bug#26324: Tail does not recognize .log file type
Date: Fri, 31 Mar 2017 09:20:17 -0700

On 31/03/17 08:26, Kevin Bedard wrote:
> Hello.  When I execute a ‘tail -f ‘ on my product’s log file (text based
> file), I get the error below, however, the file contents is still displayed
> and updated in real time.
> 
> 
> 
> *tail: unrecognized file system type 0xf15f083d for 'aerolink.log'. please
> report this to bug-coreutils <at> gnu.org <bug-coreutils <at> gnu.org>. reverting to
> polling*

What file system is that file on,
and is it a networked file system?

thanks,
Pádraig

Message #11 received at 26324 <at> debbugs.gnu.org (full text, mbox):

From: Bernhard Voelker <mail <at> bernhard-voelker.de>
To: Pádraig Brady <P <at> draigBrady.com>,
 Kevin Bedard <kbedard <at> onboardsecurity.com>, 26324 <at> debbugs.gnu.org
Subject: Re: bug#26324: Tail does not recognize .log file type
Date: Sun, 2 Apr 2017 10:56:42 +0200

On 03/31/2017 06:20 PM, Pádraig Brady wrote:
> On 31/03/17 08:26, Kevin Bedard wrote:
>> Hello.  When I execute a ‘tail -f ‘ on my product’s log file (text based
>> file), I get the error below, however, the file contents is still displayed
>> and updated in real time.
>>
>>
>>
>> *tail: unrecognized file system type 0xf15f083d for 'aerolink.log'. please
>> report this to bug-coreutils <at> gnu.org <bug-coreutils <at> gnu.org>. reverting to
>> polling*
> 
> What file system is that file on,
> and is it a networked file system?

It seems that this was a UNIONFS filesystem ...

  http://unionfs.filesystems.org/
  http://copilotco.com/mail-archives//linux-kernel.2008/msg45027.html

... which never made it into the linux kernel.
I'm not sure we should support that.  Newer tail(1) >v8.24  wouldn't
output the warning any longer anyway, so silently falling back
to polling seems to be sufficient for UNIONFS.

Have a nice day,
Berny

Message #14 received at 26324 <at> debbugs.gnu.org (full text, mbox):

From: Assaf Gordon <assafgordon <at> gmail.com>
To: 26324 <at> debbugs.gnu.org
Subject: Re: bug#26324: Tail does not recognize .log file type
Date: Sun, 28 Oct 2018 21:03:07 -0600

retitle 26324 tail,stat: add UNIONFS (0xf15f083d)
tags 26324 wontfix
close 26324
stop

(triaging old bugs)

On 2017-04-02 2:56 a.m., Bernhard Voelker wrote:
> It seems that this was a UNIONFS filesystem ...
> 
>    http://unionfs.filesystems.org/
>    http://copilotco.com/mail-archives//linux-kernel.2008/msg45027.html
> 
> ... which never made it into the linux kernel.
> I'm not sure we should support that.  Newer tail(1) >v8.24  wouldn't
> output the warning any longer anyway, so silently falling back
> to polling seems to be sufficient for UNIONFS.
> 

Given the above, and no further comments,
I'm closing this bug.
Discussion can continue by replying to this thread.

-assaf

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