Hi
This is my first post here. Am not sure if this is right forum. I am
trying to get KVM/qemu running on linux. I compiled 2.6.27.10 by
enabling "KVM", "KVM for intel" options at configure time. My box is
running with KVM enabled inside kernel. I also built
qemu-kvm-0.12.2 using above kernel headers etc. I enabled
virtualization in BIOS. I didn't try to install any guest from CD etc.
I made a hard disk image, installed grub on it, copied kernel, initrd
onto it. Now when I try to create Vm as below, it crashes with
following backtrace. What could be going wrong? Am going thru qemu code to see if I can get any hints.
Also when I try
to say "-m 256" malloc (or posix_memalign) fails with ENOMEM. So right
now "-m 128", which is default, works. Why is that? I have 4G RAM in my
setup and my native linux is using less than 1G. I didn't find any command line option to raise rlimits for qemu.
Sounds like I'm doing some basic stuff wrong. I'm using bios, vapic, pxe-rtl bin straight from the qemu-kvm dir.
If I don't do '-nographic' its running into some malloc failure inside some vga routine. I pasted that backtrace too below.
Appreciate your help.
thanks
Here is my commandline:
qemu-system-x86_64
-hda /dev/shm/vmhd.img -bios ./bios.bin --option-rom ./vapic.bin
-curses -nographic -vga none -option-rom ./pxe-rtl8139.bin
#0 0x414875a6 in raise () from /lib/libc.so.6
(gdb) bt
#0 0x414875a6 in raise () from /lib/libc.so.6
#1 0x4148ad18 in abort () from /lib/libc.so.6
#2 0x080b4cb3 in die2 (err=<value optimized out>,
what=0x81f2662 "pthread_create") at posix-aio-compat.c:80
#3 0x080b5682 in thread_create (arg=<value optimized out>,
start_routine=<value optimized out>, attr=<value optimized out>,
thread=<value optimized out>) at posix-aio-compat.c:118
#4 spawn_thread () at posix-aio-compat.c:379
#5 qemu_paio_submit (aiocb=0x846b550) at posix-aio-compat.c:390
#6 0x080b57cb in paio_submit (bs=0x843c008, fd=5, sector_num=0,
qiov=0x84cefb8, nb_sectors=512, cb=0x81cb950 <dma_bdrv_cb>,
opaque=0x84cef80, type=1) at posix-aio-compat.c:584
#7 0x080cc7b8 in raw_aio_submit (type=<value optimized out>,
opaque=<value optimized out>, cb=<value optimized out>,
nb_sectors=<value optimized out>, qiov=<value optimized out>,
sector_num=<value optimized out>, bs=<value optimized out>)
at block/raw-posix.c:562
#8 raw_aio_readv (bs=0x843c008, sector_num=0, qiov=0x84cefb8, nb_sectors=1,
cb=0x81cb950 <dma_bdrv_cb>, opaque=0x84cef80) at block/raw-posix.c:570
#9 0x080b0593 in bdrv_aio_readv (bs=0x843c008, sector_num=0, qiov=0x84cefb8,
nb_sectors=1, cb=0x81cb950 <dma_bdrv_cb>, opaque=0x84cef80)
at block.c:1548
#10 0x081cbb26 in dma_bdrv_cb (opaque=0x84cef80, ret=0)
at /ws/pkoya-sjc/temp/qemu-kvm-0.12.2/dma-helpers.c:123
#11 0x081cbcde in dma_bdrv_io (bs=0x843c008, sg=0x846861c, sector_num=0,
cb=0x8074320 <ide_read_dma_cb>, opaque=0x8468f1c, is_write=0)
at /ws/pkoya-sjc/temp/qemu-kvm-0.12.2/dma-helpers.c:167
#12 0x0807441b in
ide_read_dma_cb (opaque=0x8468f1c, ret=0)
at /ws/pkoya-sjc/temp/qemu-kvm-0.12.2/hw/ide/core.c:597
#13 0x080760ec in bmdma_cmd_writeb (opaque=0x8468f1c, addr=49152, val=9)
at /ws/pkoya-sjc/temp/qemu-kvm-0.12.2/hw/ide/pci.c:51
#14 0x080d9d5f in ioport_write (data="" optimized out>,
address=<value optimized out>, index=<value optimized out>) at ioport.c:80
#15 cpu_outb (addr=6587, val=<value optimized out>) at ioport.c:198
#16 0xb60a3bc9 in ?? ()
#17 0x0000c000 in ?? ()
#18 0x00000009 in ?? ()
#19 0x00000000 in ?? ()
(gdb) q
backtrace without "-nographic"
============================
(gdb) bt
#0 0x414875a6 in raise () from /lib/libc.so.6
#1 0x4148ad18 in abort () from /lib/libc.so.6
#2 0x080b4c3c in qemu_memalign (alignment=4096, size=16777216) at osdep.c:96
#3 0x080b4c5a in qemu_vmalloc (size=16777216) at osdep.c:110
#4 0x08119995 in qemu_ram_alloc
(size=16777216)
at /devel/temp/qemu-kvm-0.12.2/exec.c:2550
#5 0x0807ffd0 in vga_common_init (s=0x84be7e4, vga_ram_size=16777216)
at /devel/temp/qemu-kvm-0.12.2/hw/vga.c:2291
#6 0x080a1c4b in pci_cirrus_vga_initfn (dev=0x84be618)
at /devel/temp/qemu-kvm-0.12.2/hw/cirrus_vga.c:3209
#7 0x0805e61e in pci_qdev_init (qdev=0x84be618, base=0x8229700)
at /devel/temp/qemu-kvm-0.12.2/hw/pci.c:1482
#8 0x080fa7ee in qdev_init (dev=0x84be618)
at /devel/temp/qemu-kvm-0.12.2/hw/qdev.c:242
#9 0x080fa885 in qdev_init_nofail (dev=0x84be618)
at /devel/temp/qemu-kvm-0.12.2/hw/qdev.c:285
#10 0x0805d8ca in pci_create_simple (bus=0x845ab58, devfn=-1,
name=0x81ce0f8 "cirrus-vga")
at /devel/temp/qemu-kvm-0.12.2/hw/pci.c:1533
#11 0x080a2c71 in pci_cirrus_vga_init (bus=0x845ab58)
at /devel/temp/qemu-kvm-0.12.2/hw/cirrus_vga.c:3235
#12 0x0808abc3 in pc_init1 (ram_size=<value optimized
out>,
boot_device=0xbf9fea17 "cad", kernel_filename=0x0,
kernel_cmdline=0x81f82f8 "", initrd_filename=0x0,
cpu_model=0x81eca10 "qemu64", pci_enabled=1)
at /devel/temp/qemu-kvm-0.12.2/hw/pc.c:1149
#13 0x080518db in main (argc=8, argv=0xbf9feaf4, envp=Cannot access memory at address 0x7730
)
at /devel/temp/qemu-kvm-0.12.2/vl.c:6055
(gdb) q