bugThe GNU Hurd - Bugs: bug #15321, pflocal memory leak ?


bug #15321: pflocal memory leak ?

Submitted by:  Samuel Thibault <sthibaul>
Submitted on:  Thu 29 Dec 2005 09:13:05 PM UTC  
Category: Hurd ServersSeverity: 3 - Normal
Priority: 5 - NormalItem Group: None
Status: Works For MePrivacy: Public
Assigned to: NoneOriginator Name: 
Open/Closed: ClosedReproducibility: None
Size (loc): NonePlanned Release: None
Effort: 0.00
Wiki-like text discussion box: 

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Thu 11 Feb 2016 08:52:24 PM UTC, comment #3:

I've never seen such a problem either, and I recently piped 8 tb through pflocal without seeing any sign of any kind of leak. I'd say it is not reproducible anymore.

Justus Winter <teythoon>
Project Member
Fri 30 Dec 2005 06:04:06 PM UTC, comment #2:

Has anyone been able to reproduce this since 2000?

I, as Samuel, haven't had such problems.

Alfred M. Szmidt <ams>
Thu 29 Dec 2005 09:15:27 PM UTC, comment #1:

Note: I personally never had such troubles. Someone should try to stress pflocal and see how well it still leaks.

Samuel Thibault <sthibaul>
Project Member
Thu 29 Dec 2005 09:13:05 PM UTC, original submission:

From http://bugs.debian.org/73014

From: Marcus Brinkmann <Marcus.Brinkmann@ruhr-uni-bochum.de>
To: submit@bugs.debian.org,
Frederico S. Muñoz <fsmunoz@sdf.lonestar.org>
Cc: "Stephen R. Gore" <sgore@debian.org>, -unavailable-
Subject: Re: kernel panic/paging error
Date: Tue, 3 Oct 2000 01:32:16 +0200

Package: hurd
Version: 20000921

On Mon, Oct 02, 2000 at 08:48:54PM +0000, Frederico S. Muñoz wrote:

> > Seems that the process /hurd/pflocal has a memory leak. Very
> > repeatable, most often triggered by apps that use advanced terminal
> > functions (screen, vi, dselect for example). If not killed, the process
> > will swap my box to death. OTOH, after I've killed such runaway processes
> > once or twice, the problem doesn't usually occur again.
> Indeed, the same happens to me... and many times it swaps so much that
> I can't even kill anything because even ps Aux will not work; only
> reset will end its misery.

I am seeing this, too, but it's news to me. Today is the first time I really
saw it happen.

pflocal get's suddenly nervous, and memory usage blows up, within a few
seconds it sucks up all availalable RAM, and then swap (but slower). I saw a
swap decrease of 4 MB every few seconds.

It's hard to get diagnostic info at this stage. I could run one "ps aux",
which showed a memory usage of 66 MB, but after that, I could not get the
number of ports nor the number of threads. I will try to get more info.

Maybe it is related to the pflocal changes without the corresponding new
glibc, and updating glibc fixes that.

Anyway, for the record, I submit it as a Debian bug. Please drop
-unavailable- when replying.


Samuel Thibault <sthibaul>
Project Member


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  • -unavailable- added by teythoon (Posted a comment)

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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Thu 11 Feb 2016 08:52:24 PM UTCteythoonStatusNeed Info=>Works For Me
    Fri 30 Dec 2005 06:21:04 PM UTCamsStatusNone=>Need Info

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