Re: qemu-kvm.0.12.2 aborts on linux

[Gleb Natapov <gleb@redhat.com>]

On Thu, Apr 29, 2010 at 07:35:02AM -0700, K D wrote:
> Here are my ulimits
> 
> $ ulimit -a
> core file size          (blocks, -c) unlimited
> data seg size           (kbytes, -d) unlimited
> scheduling priority             (-e) 0
> file size               (blocks, -f) unlimited
> pending signals                 (-i) 71680
> max locked memory       (kbytes, -l) 32
> max memory size         (kbytes, -m) unlimited
> open files                      (-n) 1024
> pipe size            (512 bytes, -p) 8
> POSIX message queues     (bytes, -q) 819200
> real-time priority              (-r) 0
> stack size              (kbytes, -s) 8192
> cpu time               (seconds, -t) unlimited
> max user processes              (-u) 1024
> virtual memory          (kbytes, -v) 204800
Your virtual memory is limited to 200M. Make it unlimited.

> file locks                      (-x) unlimited
> $
> 
> I'm using monta vista distribution. I went through qemu code and there is no place to raise rlimits. didn't want to touch it.
> 
> thanks for looking.
> 
> 
> 
> 
> 
> ________________________________
> From: Gleb Natapov <gleb@redhat.com>
> To: K D <kdcalif@yahoo.com>
> Cc: avi@redhat.com; mtosatti@redhat.com; kvm@vger.kernel.org
> Sent: Thu, April 29, 2010 3:17:06 AM
> Subject: Re: qemu-kvm.0.12.2 aborts on linux
> 
> On Wed, Apr 28, 2010 at 10:19:37AM -0700, K D wrote:
> > Am using yahoo mail and my mails to this mailer gets rejected every time saying message has HTML content etc. Should I use some other mail tool? Below is my issue.
> > 
> > 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 this 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?
> > 
> > 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. Is there some rlimits for qemu that I need to raise?
> > 
> > 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.
> > 
> What's your Linux distribution? First trace bellow shows that ptheard_create()
> failed which is strange. What ulimit -a shows?
> 
> 
> > Appreciate your help.
> > thanks
> > 
> > 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=<value 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
> > 
> 
> --
>             Gleb.
> 
> 
> 
>       

--
			Gleb.