linux-kernel - Re: iotop: khugepaged at 99.99% (2.6.38.3)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <BANLkTi=puXde+bq9PD9foGT35oNU+Vag1A@mail.gmail.com>
Date:	Mon, 13 Jun 2011 12:28:37 +0200
From:	Antonio Messina <arcimboldo@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: iotop: khugepaged at 99.99% (2.6.38.3)

On Thu, Apr 21, 2011 at 1:28 AM, Thomas Sattler <tsattler@....de> wrote:
> Hi there ...
>
> While running firefox (>50 open Tabs), khugepaged jumped to 99.99%
> (according to 'iotop').  I killed firefox and nearly all running
> programs but khugepaged was still at 99.99% IO while the system
> was almost idle. I waited about 10 minutes, no improvement, so
> I rebooted the machine.

Dear all,

I have a similar issue, but I am running a 2.6.38-6 kernel on a HPC
cluster, and I had this issue quite often lately, especially on jobs
accessing the network (but since we are using NFS and MPI, many jobs
are actually accessing the network).

I'm using an SMP, non-PREEMPT kernel (2cpu*8 cores each machine). I
can provide you more information if you need, but please reply to me
since I'm not subscribed to the mailing list.

.a.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/