From: Rob Landley <rob@landley.net>
To: user-mode-linux-devel@lists.sourceforge.net
Cc: Oliver Baltz <info@OliverBaltz.de>
Subject: Re: [uml-devel] Re: [uml-user] UML freezes at hdd-intensive processes
Date: Fri, 11 Mar 2005 11:02:54 -0500 [thread overview]
Message-ID: <200503111102.54214.rob@landley.net> (raw)
In-Reply-To: <32977.82.83.51.111.1110551392.squirrel@82.83.51.111>
On Friday 11 March 2005 09:29 am, Oliver Baltz wrote:
> Hi,
>
> my problem still exists: the UML hangs om hdd-intensive processess (like
> apt-get dist-upgrade). I tried a lot of things in time:
>
> o tried on 2 machines with different hardware, different Host- and
> Guest-Kernels
> o CONFIG_BLK_DEV_UBD_SYNC is not set
> o tried ext2/reiserfs on the Guest-UML
> o when the UML hangs, it does not respond to sysrqs
> o SKAS is not patched into the Host-System
> o UML has enough swap-space (tried tmpfs, too)
> o did an strace:
> http://home.oliverbaltz.de/transfer/strace-uml-freeze.txt.gz
>
> I followed this HOWTO: http://oliverbaltz.de/index.php?id=101
>
> Any ideas?
> Thanks in advance.
It sounds like "stick printfs into the source code" time.
It's most likely to be UBD, since A) that's not in standard linux, which
doesn't have this problem, and B) it's what you exercise intensely when you
see it.
Is it write-intensive, read-intensive, combination of both, or either one?
Rob
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next prev parent reply other threads:[~2005-03-11 17:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <36770.128.176.89.137.1109844107.squirrel@128.176.89.137>
[not found] ` <Pine.LNX.4.61.0503030913280.31663@simba.math.ucla.edu>
[not found] ` <35767.82.83.49.235.1109878592.squirrel@82.83.49.235>
2005-03-11 14:29 ` [uml-devel] Re: [uml-user] UML freezes at hdd-intensive processes Oliver Baltz
2005-03-11 16:02 ` Rob Landley [this message]
2005-03-11 21:18 ` Oliver Baltz
2005-03-11 20:54 ` Rob Landley
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