Hi, After multiple runs of not-so-successful bisecting, it appears as if the 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:
$ x86_64-softmmu/qemu-system-x86_64 -enable-kvm -device virtio-scsi-pci,id=mcbus qemu-system-x86_64: /home/andreas/QEMU/qemu-rcar/memory.c:1259: memory_region_add_subregion_common: Assertion `!subregion->parent' failed. $ x86_64-softmmu/qemu-system-x86_64 -enable-kvm -m 1G -boot menu=on -drive file=../openSUSE-12.1-DVD-x86_64.iso,if=none,id=idecd,readonly=on -device ide-cd,bus=ide.0,drive=idecd -device ahci,id=ahci -device ide-cd,bus=ahci.0,drive=ahcicd -drive file=../openSUSE-12.1-GNOME-LiveCD-x86_64.iso,if=none,id=ahcicd,readonly=on qemu-system-x86_64: /home/andreas/QEMU/qemu-rcar/memory.c:1259: memory_region_add_subregion_common: Assertion `!subregion->parent' failed. qemu.git appears to be okay. But I also got quite a few segfaults during the bisects that I had to skip (I believe mengcong was already tracking down some virtio write error), so I'll recheck without git-bisect and doing fully clean rebuilds tomorrow if nobody has any insights. Cheers, Andreas [1] http://repo.or.cz/w/qemu/afaerber.git/shortlog/refs/heads/qom-next-2 -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
