xfs
[Top] [All Lists]

Re: New xfstests generic/308 causes XFS hang (high CPU use), at least on

To: Rich Johnston <rjohnston@xxxxxxx>
Subject: Re: New xfstests generic/308 causes XFS hang (high CPU use), at least on 32-bit
From: "Michael L. Semon" <mlsemon35@xxxxxxxxx>
Date: Wed, 10 Apr 2013 10:31:17 -0400
Cc: "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:cc:content-type; bh=sJgu0HA0OUxQY0QD0yBQcMNM1cmWBpWfzSjxuf9UzrY=; b=Z+VbV7TLqcAKO6zj1vsqyvsq6whdbmPE5PtdzWeEeKBlG6knjK8taBcyGIv+zivhZ9 09BWZD4gbqDGFWDyArn85iWK9tKC+ga1BjgfGl/LWbhNJlSQlPkxw5oYzPzKQPWb5/k9 p+C35oY8c+wrw2hwiWEUoxfpJdF5hJgjavPMDw2rpekthlDzp46pkDYUGzslRaaXJdqv O1c7+70syM6lIi3YyNF08WiRWkO5xy1QxnFYsNI2tbwE8UWP73gB+Jv1zTWTv486+VXU jYPQF9la8jZ3VfjtLYO8q+Y+TZqeYxBCJXMbNeNfhfNw38eDdygHtpddgSuSDaEVb05q LOxg==
In-reply-to: <516574AD.7060706@xxxxxxx>
References: <51656D47.9010806@xxxxxxxxx> <516571CA.1020908@xxxxxxxxx> <516574AD.7060706@xxxxxxx>
On casual glance, it looks like a test meant to test the end of 32-bit offsets, built to test a specific ext4 case, and it happened to strafe XFS on 32-bit in the process.  It is unknown to me whether a script with 64-bit version of the numbers would have a bad effect.

Michael


On Wed, Apr 10, 2013 at 10:18 AM, Rich Johnston <rjohnston@xxxxxxx> wrote:
On 04/10/2013 09:06 AM, Michael L. Semon wrote:
On 04/10/2013 09:46 AM, Michael L. Semon wrote:

The PC uses kernel 3.8-rc4 + Dave's CRC v4 patches + J. Liu's bitness
patch.

Oops, that was supposed to be "kernel 3.9-rc4."  Sorry.

Michael

_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs

Runs fine on all my 64 bit machines.  I quickly ran a test using 3.9.0-rc1+ on a 32 bit machine.  I am seeing the same xfs_io 100% CPU usage.

Looks 32 bit specific.

--Rich


<Prev in Thread] Current Thread [Next in Thread>