Running: $ qemu-system-x86_64 -device virtio-blk-pci,logical_block_size=4096,physical_block_size=4096,drive=boot -drive file=/tmp/a.qcow2,if=none,id=boot
gives me: Floating point exception
The crash is in hw/virtio-blk.c:505 blkcfg.blk_size is zero because
s->conf->logical_block_size is zero.
Running:
$ qemu-system-x86_64 -device
virtio-blk-pci,physical_block_size=4096,logical_block_size=4096,drive=boot
-drive file=/tmp/a.qcow2,if=none,id=boot
works.
--
Gleb.
