6.3/amd64: linux guest hangs if kqemu is used

[Andriy Gapon]

This report is quite low on details.

My system is 6.3-RELEASE amd64.
I have qemu-0.9.1_9 and kqemu-kmod-1.3.0.p11_9.
Guest is 2.6.25.9-76.fc9.x86_64.

kqemu.ko and aio.ko are loaded.

Run like this is OK:
qemu-system-x86_64 -no-kqemu -m 640 -hda box1.img -net nic -net tap

Run like this - guest hangs during boot:
qemu-system-x86_64 -m 640 -hda box1.img -net nic -net tap

There are no messages on qemu output or in system log.
qemu uses 100% CPU.
Ctrl+Alt+2 works, I can execute commands in qemu console.
BTW, info kqemu says "enabled for user code".

Guest console messages:
...
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a
report
NetLabel: Initializing
NetLabel:  domain hash size = 128
NetLabel:  protocols = UNLABELED CIPSOv4
NetLabel:  unlabeled traffic allowed by default
PCI-GART: No AMD northbridge found.
!
! kqemu hang is here !
!
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
checking if image is initramfs...<7>Switched to high resolution mode on
CPU 0
Clocksource tsc unstable (delta = 778613351 ns)
 it is
...

-- 
Andriy Gapon