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Re: kvm causing memory corruption? now 2.6.26-rc8

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From: Dave Hansen
Subject: Re: kvm causing memory corruption? now 2.6.26-rc8
Date: Tuesday, July 15, 2008 - 11:57 am

So, just a continuation of what we were talking about before...

I just had a bug triggered on my system because I'm running sparsemem
(it was in show_mem()).  I wonder if sparsemem is contributing to the
bug.  Does kvm ever do any arithmetic that you can think of with 'struct
page's?

To summarize my config: 
* 4GB of RAM
* hole from 3-4GB (so ram ranges from 0-5GB)
* PAE enabled
* SPARSEMEM=y

http://sr71.net/~dave/linux/config-2.6.26-rc8-00089-ge1441b9

I'm compiling a kernel right now to try without sparsemem.

-- Dave

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Messages in current thread:
kvm causing memory corruption? ~2.6.25-rc6, Dave Hansen, (Tue Mar 25, 2:12 pm)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Avi Kivity, (Wed Mar 26, 2:50 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Dave Hansen, (Wed Mar 26, 9:52 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Avi Kivity, (Wed Mar 26, 9:58 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Dave Hansen, (Wed Mar 26, 10:16 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Avi Kivity, (Thu Mar 27, 2:36 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Avi Kivity, (Thu Mar 27, 3:10 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Dave Hansen, (Thu Mar 27, 7:55 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Avi Kivity, (Thu Mar 27, 7:59 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Dave Hansen, (Thu Mar 27, 8:50 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Avi Kivity, (Thu Mar 27, 8:53 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Dave Hansen, (Thu Mar 27, 9:30 am)
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6, Dave Hansen, (Thu Mar 27, 9:30 am)
Re: kvm causing memory corruption? now 2.6.26-rc4, Dave Hansen, (Mon Jun 2, 3:30 pm)
Re: kvm causing memory corruption? now 2.6.26-rc4, Dave Hansen, (Mon Jun 2, 5:59 pm)
Re: kvm causing memory corruption? now 2.6.26-rc4, Avi Kivity, (Wed Jun 4, 6:42 am)
Re: kvm causing memory corruption? now 2.6.26-rc4, Dave Hansen, (Fri Jun 6, 12:41 am)
Re: kvm causing memory corruption? now 2.6.26-rc4, Avi Kivity, (Thu Jun 12, 6:10 am)
Re: kvm causing memory corruption? now 2.6.26-rc4, Dave Hansen, (Mon Jun 16, 11:07 am)
Re: kvm causing memory corruption? now 2.6.26-rc8, Dave Hansen, (Tue Jul 15, 11:57 am)
Re: kvm causing memory corruption? now 2.6.26, Dave Hansen, (Wed Jul 16, 2:44 pm)
KVM overflows the stack, Dave Hansen, (Wed Jul 16, 3:48 pm)
Re: kvm causing memory corruption? now 2.6.26, Avi Kivity, (Wed Jul 16, 10:38 pm)
Re: KVM overflows the stack, Avi Kivity, (Wed Jul 16, 10:52 pm)
Re: KVM overflows the stack, Roland Dreier, (Wed Jul 16, 11:08 pm)
Re: KVM overflows the stack, Dave Hansen, (Wed Jul 16, 11:14 pm)
Re: KVM overflows the stack, Dave Hansen, (Wed Jul 16, 11:27 pm)
Re: KVM overflows the stack, Avi Kivity, (Wed Jul 16, 11:42 pm)
[PATCH] update kvm's anon_inodes.c for r/o bind mounts, Dave Hansen, (Wed Jul 16, 11:45 pm)
Re: KVM overflows the stack, Dave Hansen, (Thu Jul 17, 7:06 am)
Re: KVM overflows the stack, Avi Kivity, (Thu Jul 17, 7:15 am)
Re: [PATCH] update kvm's anon_inodes.c for r/o bind mounts, Avi Kivity, (Sat Jul 19, 12:33 am)