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Date: Sun, 17 Jun 2012 11:37:26 +0300
From: Avi Kivity <avi@redhat.com>
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Subject: Re: [Qemu-devel] [qom-next] Bisecting virtio-scsi issue
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To: =?ISO-8859-15?Q?Andreas_F=E4rber?= <afaerber@suse.de>
Cc: Stefan Hajnoczi <stefanha@gmail.com>, mengcong <mc@linux.vnet.ibm.com>, qemu-devel <qemu-devel@nongnu.org>, Anthony Liguori <anthony@codemonkey.ws>

On 06/16/2012 03:41 AM, Andreas F=E4rber wrote:
> Hi,
>=20
> After multiple runs of not-so-successful bisecting, it appears as if th=
e
> qom-next commit "qbus: Make child devices links" [1] is causing
> assertions for both virtio-scsi and ahci but not for qemu-system-x86_64
> without parameters:
>=20
> $ x86_64-softmmu/qemu-system-x86_64 -enable-kvm -device
> virtio-scsi-pci,id=3Dmcbus
> qemu-system-x86_64: /home/andreas/QEMU/qemu-rcar/memory.c:1259:
> memory_region_add_subregion_common: Assertion `!subregion->parent' fail=
ed.
>=20
> $ x86_64-softmmu/qemu-system-x86_64 -enable-kvm -m 1G -boot menu=3Don
> -drive file=3D../openSUSE-12.1-DVD-x86_64.iso,if=3Dnone,id=3Didecd,read=
only=3Don
> -device ide-cd,bus=3Dide.0,drive=3Didecd -device ahci,id=3Dahci -device
> ide-cd,bus=3Dahci.0,drive=3Dahcicd -drive
> file=3D../openSUSE-12.1-GNOME-LiveCD-x86_64.iso,if=3Dnone,id=3Dahcicd,r=
eadonly=3Don
> qemu-system-x86_64: /home/andreas/QEMU/qemu-rcar/memory.c:1259:
> memory_region_add_subregion_common: Assertion `!subregion->parent' fail=
ed.
>=20

A stack trace would be helpful, as well as a printout of what
subregion->parent actually is.

You can also run 'qemu mtree' from gdb after including scripts/qemu-gdb.p=
y.

--=20
error compiling committee.c: too many arguments to function