From: Thomas Sattler <tsattler@gmx.de>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: iotop: khugepaged at 99.99% (2.6.38.3)
Date: Thu, 21 Apr 2011 01:28:11 +0200 [thread overview]
Message-ID: <4DAF6C0B.3070009@gmx.de> (raw)
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.
I observed this since 2.6.38 (I never run 2.6.37). This time the
system was still responsive. When I observed the same thing with
2.6.38.x (x<3), the system became unresponsive within minutes
after khugepaged hit 99%, see http://lkml.org/lkml/2011/4/7/306
All this happened five times since 2.6.38 became stable. It does
not happen at boot time, but days (or weeks) later.
Thomas
next reply other threads:[~2011-04-20 23:28 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-20 23:28 Thomas Sattler [this message]
2011-04-27 13:46 ` iotop: khugepaged at 99.99% (2.6.38.3) Andrea Arcangeli
2011-05-04 12:20 ` Thomas Sattler
2011-05-04 12:37 ` Thomas Sattler
2011-05-04 14:38 ` Andrea Arcangeli
2011-05-05 13:08 ` Thomas Sattler
2011-05-05 22:04 ` iotop: khugepaged at 99.99% (2.6.38.X) Thomas Sattler
2011-05-06 1:13 ` Andrea Arcangeli
2011-05-06 6:35 ` Andrea Arcangeli
2011-05-06 8:49 ` Thomas Sattler
2011-05-06 8:54 ` Thomas Sattler
2011-05-06 14:24 ` Thomas Sattler
2011-05-06 17:20 ` Andrea Arcangeli
2011-05-06 17:55 ` Andrea Arcangeli
2011-05-11 10:53 ` iotop: khugepaged at 99.99% (2.6.38.3) Ulrich Keller
2011-05-12 14:03 ` Andrea Arcangeli
2011-05-16 9:27 ` Ulrich Keller
2011-05-16 12:29 ` Ulrich Keller
2011-05-23 18:05 ` Johannes Hirte
2011-05-25 16:06 ` Andrea Arcangeli
2011-05-25 20:44 ` Thomas Sattler
2011-06-01 19:37 ` Gilles Hamel
2011-06-13 10:28 ` Antonio Messina
[not found] <fa.FZDTDqnxL4JfQvyaCQTn405rzwM@ifi.uio.no>
2011-09-14 12:57 ` Slawomir Czarko-Wasiutycz
2011-09-14 13:32 ` Slawomir Czarko-Wasiutycz
2011-09-15 6:43 ` Lin Ming
2011-09-15 6:48 ` Lin Ming
2011-09-15 7:24 ` Thomas Sattler
2011-09-15 7:50 ` Lin Ming
2011-09-19 17:51 ` Andrea Arcangeli
2011-09-20 13:19 ` Slawomir Czarko-Wasiutycz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4DAF6C0B.3070009@gmx.de \
--to=tsattler@gmx.de \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox