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[Qemu-devel] vhost broken?


From: Gerd Hoffmann
Subject: [Qemu-devel] vhost broken?
Date: Thu, 05 Jan 2012 12:05:52 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111104 Red Hat/3.1.16-2.el6_1 Thunderbird/3.1.16

  Hi,

current master seems to corrupt guest memory, I get guest errors like
this one:

swap_dup: Bad swap file entry 1999800080
BUG: Bad page map in process udevd  pte:bec5f30054520100 pmd:1f6f4067
addr:00007fc464a02000 vm_flags:00100073 anon_vma:ffff88001f928ec0
mapping:(null) index:7fc464a02
Pid: 555, comm: udevd Not tainted 2.6.32-220.el6.x86_64 #1

bisecting points to this commit:

commit 04097f7c5957273c578f72b9bd603ba6b1d69e33
Author: Avi Kivity <address@hidden>
Date:   Sun Dec 18 14:06:05 2011 +0200

    vhost: convert to MemoryListener API

cheers,
  Gerd



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