Peter Crosthwaite <peter.crosthwa...@xilinx.com> writes: > On Mon, Jul 14, 2014 at 9:10 PM, Markus Armbruster <arm...@redhat.com> wrote: >> Watch this: >> >> (qemu) chardev-add file,path=foo2,id=foo2 >> (qemu) chardev-add file,path=foo3,id=foo3 >> (qemu) device_add id=gg,driver=pci-serial-2x,chardev1=foo2,chardev2=foo3 >> (qemu) device_del gg >> (qemu) upstream-qemu: /work/armbru/qemu/memory.c:1259: >> memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == >> ((void *)0))' failed. >> > > Are there more specifics to reproduction? I'm struggling and I've > tried a few variants. > > Curiously I can device_del gg repeatedly with seemingly no effect however: > > pcrost@pcrost-K42F:~/qemu$ ./x86_64-softmmu/qemu-system-x86_64 -nographic > QEMU 2.0.91 monitor - type 'help' for more information > (qemu) chardev-add file,path=foo2,id=foo2 > (qemu) chardev-add file,path=foo3,id=foo3 > (qemu) device_add id=gg,driver=pci-serial-2x,chardev1=foo2,chardev2=foo3 > (qemu) device_del gg > (qemu) device_del gg > (qemu) device_del gg > (qemu) info qtree > bus: main-system-bus > type System > dev: hpet, id "" > gpio-in "" 2 > gpio-out "" 1 > timers = 3 (0x3) > msi = false > hpet-intcap = 4 (0x4) > irq 32 > mmio 00000000fed00000/0000000000000400 > dev: ioapic, id "" > gpio-in "" 24 > irq 0 > mmio 00000000fec00000/0000000000001000 > dev: i440FX-pcihost, id "" > pci-hole64-size = 18446744073709551615 (16 EiB) > short_root_bus = 0 (0x0) > irq 0 > bus: pci.0 > type PCI > dev: pci-serial-2x, id "gg" > chardev1 = "foo2" > chardev2 = "foo3" > prog_if = 2 (0x2) > addr = 04.0 > romfile = "" > rombar = 1 (0x1) > multifunction = false > command_serr_enable = true > class Serial port, addr 00:04.0, pci id 1b36:0003 (sub 1af4:1100) > bar 0: i/o at 0xffffffffffffffff [0xe] > > Am I missing something?
Is your guest running and honoring ACPI unplug requests? See also Paolo's reply, which points to a patch.
