Dmitry Eremin-Solenikov пишет:
Jan Kiszka пишет:
Dmitry Eremin-Solenikov wrote:
Gleb Natapov wrote:
On Wed, Apr 15, 2009 at 01:30:29PM +0400, Dmitry Eremin-Solenikov
wrote:
qemu-x86_64 version 0.10.2 running on i386
Due to problems with qemu-x86_64 I have to boot the 'host' kernel
with 'noapic'.
Do you mean boot 'guest' kernel with noapic? The guest is what runs
inside qemu. So you are able to boot guest with 'noapic'?
What is the command line you are using.
Well, since this caused lot's of questions, here is my setup:
Main host: Debian squeeze, kernel 2.6.28 or .29 (doesn't matter),
qemu-system-x86_64 version 0.10.2
KVM kernel run inside qemu: e3dbe3f408a46a045012f1882e9f62b27b8a616c
from Avi's tree (KVM: x86 emulator: fix call near emulation) + these
patches. I have to boot the kernels (both this kernel and 2.6.26 from
debian) with noapic to w/around APIC problems (I dunno if it's qemu or
bochsbios problem).
And the bios you are using with 0.10.2 is from 0.10.2 (when in doubt,
specify explicitly with -bios and/or -L)? Then this would be a QEMU
upstream bug.
Indeed, there seem to be problems with upstream qemu bios. I was using
the image from the debian's bochsbios package. I asked qemu to use the
bios from 0.10.2 release and got slightly different messages. Attached
the kernel log
Moreover, using bios from 0.10.2 I can't boot linux even with noapic:
ACPI: PM-Timer IO Port: 0xb008
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
ACPI: Skipping IOAPIC probe due to 'noapic' option.
Using ACPI for processor (LAPIC) configuration information
ACPI: HPET id: 0x8086a201 base: 0xfed00000
Intel MultiProcessor Specification v1.4
MPTABLE: OEM ID: QEMUCPU
MPTABLE: Product ID: 0.1
MPTABLE: APIC at: 0xFEE00000
I/O APIC #1 Version 17 at 0xFEC00000.
Processors: 1
SMP: Allowing 1 CPUs, 0 hotplug CPUs
Allocating PCI resources starting at 20000000 (gap: 10000000:effc0000)
NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:1 nr_node_ids:1
PERCPU: Embedded 25 pages at ffff880001033000, static data 70880 bytes
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 62771
Kernel command line: root=/dev/sda1 ro console=ttyS0 noapic
Initializing CPU#0
NR_IRQS:512
PID hash table entries: 1024 (order: 10, 8192 bytes)
Fast TSC calibration using PIT
Detected 1828.371 MHz processor.
Console: colour VGA+ 80x25
console [ttyS0] enabled
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Checking aperture...
No AGP bridge found
Memory: 249848k/262080k available (4048k kernel code, 388k absent,
11528k reserved, 1626k data, 436k init)
SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop (skipped), value calculated using timer
frequency.. 3656.74 BogoMIPS (lpj=7313484)
Mount-cache hash table entries: 256
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
SMP alternatives: switching to UP code
Freeing SMP alternatives: 29k freed
ACPI: Core revision 20081204
ACPI: setting ELCR to 0200 (from 0a00)
Setting APIC routing to flat
CPU0: AMD QEMU Virtual CPU version 0.10.2 stepping 03
And after that qemu stalls.
--
With best wishes
Dmitry
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