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From: Thomas Sattler <tsattler@gmx.de>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: iotop: khugepaged at 99.99% (2.6.38.X)
Date: Fri, 06 May 2011 00:04:14 +0200	[thread overview]
Message-ID: <4DC31EDE.2020503@gmx.de> (raw)
In-Reply-To: <20110504143842.GK7838@random.random>

It happened again: This time with 2.6.38.4 after 13 days uptime.
In fact it was "13 days after last boot", since this machine is
hibernated quite often. I waited only two minutes before I run
'reboot' as root.

> Please next time can you run SYSRQ+t too in addition of SYSRQ+l?

See http://pastebin.com/raw.php?i=XnXXfC40 (It seems to me SYSRQ+l
did not work at all? And does also not work on 2.6.38.5?)

see http://pastebin.com/raw.php?i=Zuv0VnUP for 'top/iotop'

> You can run also a "ps xal" to see the actual scheduler task
> state.

I had no access to my mails and forgot to run 'ps xal'. :-(

> If we understand what it is, it'll be easy to tell if it was already
> fixed in 2.6.38.4 but I doubt unless it's not related to MM.

Definitely not fixed in 2.6.38.4.

Thomas


  parent reply	other threads:[~2011-05-05 22:04 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-20 23:28 iotop: khugepaged at 99.99% (2.6.38.3) Thomas Sattler
2011-04-27 13:46 ` 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       ` Thomas Sattler [this message]
2011-05-06  1:13         ` iotop: khugepaged at 99.99% (2.6.38.X) 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

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