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Re: [Xen-devel] Re: kernel BUG at mm/swapfile.c:2527! [was 3.0.0 Xen pv

To: "Christopher S. Aker" <caker@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: kernel BUG at mm/swapfile.c:2527! [was 3.0.0 Xen pv guest - BUG: Unable to handle]
From: "Christopher S. Aker" <caker@xxxxxxxxxxxx>
Date: Sun, 18 Sep 2011 11:05:33 -0400
Cc: LKML <linux-kernel@xxxxxxxxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Delivery-date: Sun, 18 Sep 2011 08:06:58 -0700
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References: <9CAEB881-07FE-437C-8A6B-DB7B690CEABE@xxxxxxxxxx> <4E5BA49D.5060800@xxxxxxxxxxxx> <20110829150734.GB24825@xxxxxxxxxxxx> <1314704744.28989.2.camel@xxxxxxxxxxxxxxxxxxxxxx> <4E5E9CDB.3070706@xxxxxxxxxxxx> <20110906171319.GB29839@xxxxxxxxxxxx> <4E6E2E11.1030602@xxxxxxxxxxxx> <20110912161127.GB16100@xxxxxxxxxx> <4E724ACD.1050207@xxxxxxxxxxxx> <4E724F64.5080103@xxxxxxxxxxxx>
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We've discovered a way to reproduce this quite easily!  Fire up a guest, run 
eatmem with 1M and enough threads to not OOM.

http://www.theshore.net/~caker/uml/patches/utils/eatmem.c

On a 1G guest: ./eatmem 1M 900

-Chris


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