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Date: Mon, 01 Aug 2011 11:44:23 -0600
From: David Ahern <daahern@cisco.com>
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Subject: [Qemu-devel] qemu-kvm aborts - vhost_dev_unassign_memory: Assertion
 `to >= 0' failed.
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To: Avi Kivity <avi@redhat.com>, aliguori@us.ibm.com
Cc: qemu-devel <qemu-devel@nongnu.org>, KVM mailing list <kvm@vger.kernel.org>

qemu-kvm.git as of:

commit dacdc4b10bafbb21120e1c24a9665444768ef999
Merge: 7b69d4f 0af4922
Author: Avi Kivity <avi@redhat.com>
Date:   Sun Jul 31 11:42:26 2011 +0300

    Merge branch 'upstream-merge' into next

is aborting with the error:

qemu-kvm: qemu-kvm.git/hw/vhost.c:123: vhost_dev_unassign_memory:
Assertion `to >= 0' failed.
Aborted

$ git bisect bad
00cb2a99f5e7f73c4fff54ae16c7b6acf463ab5c is the first bad commit
commit 00cb2a99f5e7f73c4fff54ae16c7b6acf463ab5c
Author: Avi Kivity <avi@redhat.com>
Date:   Tue Jul 26 14:26:17 2011 +0300

    pc: convert pc_memory_init() to memory API

    Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
    Signed-off-by: Avi Kivity <avi@redhat.com>
    Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

:040000 040000 3d709c2cab75b934030fb9fbdfa99024c855b2a6
720d362f9702f15d16519093555182169d0b09bd M	hw