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[Qemu-devel] Crash with pcie-pci-bridge on qemu-system-s390x

From: Thomas Huth
Subject: [Qemu-devel] Crash with pcie-pci-bridge on qemu-system-s390x
Date: Thu, 2 Nov 2017 15:19:17 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0


seems like there's a new way to crash QEMU with the pcie-pci-bridge
device (using QEMU master branch of today):

$ s390x-softmmu/qemu-system-s390x -nographic -S
QEMU 2.10.50 monitor - type 'help' for more information
(qemu) device_add pcie-pci-bridge,id=x
Segmentation fault (core dumped)

Does anybody have a clue what might be wrong here?

Backtrace looks like this:

#0  0x000055555577064b in pci_default_write_config (address@hidden,
address@hidden, val_in=1, address@hidden) at
#1  0x00005555556c885f in s390_pcihost_hot_plug (hotplug_dev=<optimized
out>, dev=0x55555639b160, errp=0x7fffffffc5a0) at
#2  0x000055555575afeb in device_set_realized (obj=<optimized out>,
value=<optimized out>, errp=0x7fffffffc6d8) at
#3  0x00005555557ee48e in property_set_bool (obj=0x55555639b160,
v=<optimized out>, name=<optimized out>, opaque=0x555556399fe0,
    at /home/thuth/devel/qemu/qom/object.c:1906
#4  0x00005555557f25ff in object_property_set_qobject
(address@hidden, address@hidden,
address@hidden "realized",
address@hidden) at
#5  0x00005555557f0270 in object_property_set_bool (obj=0x55555639b160,
value=<optimized out>, name=0x5555559a4157 "realized", errp=0x7fffffffc6d8)
    at /home/thuth/devel/qemu/qom/object.c:1171
#6  0x000055555570b549 in qdev_device_add
(address@hidden, address@hidden) at


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