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Re: [Qemu-devel] winXP "Standard PC" HAL and qemu-kvm >= 0.15

From: Michael Tokarev
Subject: Re: [Qemu-devel] winXP "Standard PC" HAL and qemu-kvm >= 0.15
Date: Tue, 06 Dec 2011 23:38:25 +0400
User-agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:5.0) Gecko/20110805 Icedove/5.0

[Removed some people from the Cc list]

On 06.12.2011 22:45, Michael Tokarev wrote:
>> git://git.kiszka.org/qemu-kvm.git queues/kvm-irqchip
> This tree does not boot for me at all (on regular x86-64 setup) -
> it stays in bios after "Booting from hard disk" with 100% CPU
> usage.

This happens since

commit 1ae1cec76a205446e6b4e5600ad0af450f7c0b5e
Author: Jan Kiszka <address@hidden>
Date:   Sun Oct 16 19:38:22 2011 +0200

    ioapic: Introduce backend/frontend infrastructure for KVM reuse

Also, with this

commit 063e1bea9b0c79bda48c9e82552c5c6c83d03cf7
Author: Jan Kiszka <address@hidden>
Date:   Sat Oct 15 11:49:47 2011 +0200

    kvm: Introduce core services for in-kernel irqchip support

the whole thing segfaults at startup:

(gdb) ru -monitor stdio -m 1G -netdev 
type=tap,ifname=tap-kvm1,script=no,downscript=no,id=n -device 
rtl8139,netdev=n,mac=52:54:00:12:34:57 -drive 
file=/stage/win/dist/t.raw,if=ide,cache=unsafe -vga std -usbdevice tablet 
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff5670c7a in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007ffff5670c7a in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00005555557abb3d in ioapic_init (dev=0x555556849f60)
    at /build/kvm/git/hw/ioapic_common.c:92
#2  0x00005555556a0a85 in sysbus_device_init (dev=0x555556849f60,
    base=0x555555be7200) at /build/kvm/git/hw/sysbus.c:133
#3  0x00005555556df670 in qdev_init (dev=0x555556849f60)
    at /build/kvm/git/hw/qdev.c:293
#4  0x00005555556dfa8a in qdev_init_nofail (dev=0x555556849f60)
    at /build/kvm/git/hw/qdev.c:387
#5  0x00005555557f9bc2 in ioapic_init (gsi_state=0x55555683ff70)
    at /build/kvm/git/hw/pc_piix.c:63
#6  0x00005555557f9f76 in pc_init1 (system_memory=0x55555641a1b0,
    system_io=0x55555641a2b0, ram_size=1073741824,
    boot_device=0x7fffffffea30 "cad", kernel_filename=0x0,
    kernel_cmdline=0x55555586fbff "", initrd_filename=0x0, cpu_model=0x0,
    pci_enabled=1, kvmclock_enabled=1) at /build/kvm/git/hw/pc_piix.c:166
#7  0x00005555557fa425 in pc_init_pci (ram_size=1073741824,
    boot_device=0x7fffffffea30 "cad", kernel_filename=0x0,
    kernel_cmdline=0x55555586fbff "", initrd_filename=0x0, cpu_model=0x0)
    at /build/kvm/git/hw/pc_piix.c:245
#8  0x00005555556b99ca in main (argc=16, argv=0x7fffffffeb58,
    envp=0x7fffffffebe0) at /build/kvm/git/vl.c:3351
(gdb) frame 1
#1  0x00005555557abb3d in ioapic_init (dev=0x555556849f60)
    at /build/kvm/git/hw/ioapic_common.c:92
92              if (strcmp(b->name, s->backend_name) == 0) {
(gdb) p b->name
$1 = 0x55555588588d "QEMU"
(gdb) p s->backend_name
$2 = 0x0
(gdb) _



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