This bug seems to have been fixed: we now report the command line issue
with a more helpful message:
$ qemu-system-i386 -S -machine isapc,accel=tcg -device amd-iommu
qemu-system-i386: -device amd-iommu: Machine-type 'isapc' not supported by IOMMU
This was in QEMU 3.1, so I'm closing this bug.
** Changed in: qemu
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1681398
Title:
hw/core: segmentation fault
Status in QEMU:
Fix Released
Bug description:
Reproducer:
$i386-softmmu/qemu-system-i386 -S -machine isapc,accel=tcg -device amd-iommu
Segmentation fault (core dumped)
Partial bt:
#0 bus_add_child (child=0x555556d4e520, bus=0x0) at hw/core/qdev.c:88
#1 qdev_set_parent_bus (dev=0x555556d4e520, bus=bus@entry=0x0)
at hw/core/qdev.c:119
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