13 Replies Latest reply on Aug 16, 2009 7:04 PM by 709365

    Kernel panic - not syncing: Fatal exception -  Siebel Database VM Template

    709365
      I was trying to launch Siebel Database VM Template for Siebel Industry Application version 8.1.1 for x86 (32 bit) on Oracle VM Server 2.1.2
      Getting Kernel panic error and not able to boot the VM.

      Here is the dom0 details.
      # uname -r
      2.6.18-8.1.15.1.16.el5xen

      # xm info
      host : localhost.localdomain
      release : 2.6.18-8.1.15.1.16.el5xen
      version : #1 SMP Fri Aug 1 18:27:30 EDT 2008
      machine : i686
      nr_cpus : 16
      nr_nodes : 1
      sockets_per_node : 2
      cores_per_socket : 4
      threads_per_core : 2
      cpu_mhz : 2926
      hw_caps : bfebfbff:28100800:00000000:00000140:009ce3bd:00000000:00000001
      total_memory : 73719
      free_memory : 71614
      xen_major : 3
      xen_minor : 1
      xen_extra : .4
      xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
      xen_scheduler : credit
      xen_pagesize : 4096
      platform_params : virt_start=0xfb400000
      xen_changeset : unavailable
      cc_compiler : gcc version 4.1.1 20070105 (Red Hat 4.1.1-52)
      cc_compile_by : root
      cc_compile_domain : localdomain
      cc_compile_date : Thu Aug 28 00:06:27 PDT 2008
      xend_config_format : 4


      I have downloaded required VM parts and untar them with following commands

      cat OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM.tgz.1of3 OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM.tgz.2of3 OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM.tgz.3of3 | tar xzf -




      # pwd
      /OVS/seed_pool/OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM

      # ls -la
      total 31954801
      drwxr-xr-x 2 root root 4096 Feb 13 17:06 .
      drwxr-xr-x 3 root root 4096 Aug 15 03:53 ..
      -rw-r--r-- 1 root root 26214401024 Jan 19 2009 oracle11g_x86_asm.img
      -rw-r--r-- 1 root root 6507306496 Jan 19 2009 System.img
      -rw-r--r-- 1 root root 420 Feb 13 17:06 vm.cfg
      [root@localhost OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM]#



      Configuration file is as given below, nothing modified in this file.

      # cat vm.cfg
      bootloader = '/usr/bin/pygrub'
      disk = ['file:/OVS/seed_pool/OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM/System.img,xvda,w',
      'file:/OVS/seed_pool/OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM/oracle11g_x86_asm.img,xvdb,w']
      memory = '2048'
      name = 'OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM'
      on_crash = 'restart'
      on_reboot = 'restart'
      vcpus = 2
      vfb = ['type=vnc,vncunused=1,vnclisten=0.0.0.0']
      vif = ['']



      with xm create vm.cfg, I am getting following kernel panic error.

      ------------[ cut here ]------------
      kernel BUG at include/linux/mm.h:310!
      invalid opcode: 0000 [#1]
      SMP
      last sysfs file: /block/ram0/dev
      Modules linked in:
      CPU: 1
      EIP: 0061:[<c0455c3b>] Not tainted VLI
      EFLAGS: 00010246 (2.6.18-128.0.0.0.2.el5xen #1)
      EIP is at release_pages+0x4e/0x137
      eax: 00000000 ebx: e1042360 ecx: 00000000 edx: 00000000
      esi: c201dfc8 edi: c201dfb4 ebp: 00000000 esp: c039ddbc
      ds: 007b es: 007b ss: 0069
      Process init (pid: 253, ti=c039d000 task=c039b550 task.ti=c039d000)
      Stack: 00000005 00000000 00000000 c1ff3820 c1ff37a0 c1ff37c0 c1ff3780 c1000000
      c2115ff8 bfee4fff bfee5000 c03adee4 00000000 00000000 bfed0000 c045f3e6
      00000000 e1042340 c201dfc8 00000005 c201dfb4 c046599c 00000005 00000005
      Call Trace:
      [<c045f3e6>] free_pgtables+0x69/0x76
      [<c046599c>] free_pages_and_swap_cache+0x6b/0x7f
      [<c0460630>] exit_mmap+0xb0/0xe4
      [<c041d7fb>] mmput+0x25/0x69
      [<c047875b>] flush_old_exec+0x629/0x8af
      [<c046d687>] get_unused_fd+0x54/0xb5
      [<c0495935>] load_elf_binary+0x494/0x160b
      [<c045f177>] get_user_pages+0x3f9/0x499
      [<c0610228>] spinlock_irqsave+0x8/0x28
      [<c0459602>] page_address+0x7a/0x81
      [<c0459d07>] kmap_high+0x1c/0x2b1
      [<c0610228>] spinlock_irqsave+0x8/0x28
      [<c0459602>] page_address+0x7a/0x81
      [<c0459b68>] kunmap_high+0x14/0x8e
      [<c0477df7>] copy_strings+0x169/0x173
      [<c04776c3>] search_binary_handler+0x99/0x219
      [<c0479491>] do_execve+0x13b/0x1b2
      [<c040337d>] sys_execve+0x2a/0x4a
      [<c0405413>] syscall_call+0x7/0xb
      =======================
      Code: 8b 03 f6 c4 40 74 1d 85 d2 74 0d b0 01 86 82 80 11 00 00 e8 a4 2a fc ff 89 d8 e8 8b ff ff ff e9 b8 00 00 00 8b 43 04 85 c0 75 08 <0f> 0b 36 01 6a 08 63 c0 f0 ff 4b 04 0f 94 c0 84 c0 0f 84 9c 00
      EIP: [<c0455c3b>] release_pages+0x4e/0x137 SS:ESP 0069:c039ddbc
      <0>Kernel panic - not syncing: Fatal exception


      Can you point me what needs to be fixed?
        • 1. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
          Herbert van den Bergh-Oracle
          I suspect the problem could be due to your server having more than 64GB of memory, and the guest pv kernel is unable to run in physical memory above 64GB. To see if this is the cause, modify /boot/grub/grub.conf, add mem=64G to the kernel line, and reboot your server. Then try starting the guest again.
          • 2. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
            709365
            You want me to change dom0 memory? Here is my grub.conf file.

            # grub.conf generated by anaconda
            #
            # Note that you do not have to rerun grub after making changes to this file
            # NOTICE: You have a /boot partition. This means that
            # all kernel and initrd paths are relative to /boot/, eg.
            # root (hd0,0)
            # kernel /vmlinuz-version ro root=/dev/sdb1
            # initrd /initrd-version.img
            #boot=/dev/sda
            # Detect64 claims this is 64 bit box
            default=2
            timeout=5
            splashimage=(hd0,0)/grub/splash.xpm.gz
            hiddenmenu
            title Oracle VM Server-ovs (xen-3.1.4 2.6.18-8.1.15.1.16.el5ovs)
                 root (hd0,0)
                 kernel /xen-32bit.gz dom0_mem=1126M
                 module /vmlinuz-2.6.18-8.1.15.1.16.el5xen ro root=LABEL=/12
                 module /initrd-2.6.18-8.1.15.1.16.el5xen.img
            title Oracle VM Server-ovs serial console (xen-3.1.4 2.6.18-8.1.15.1.16.el5ovs)
                 root (hd0,0)
                 kernel /xen-32bit.gz console=com1,vga com1=57600,8n1 dom0_mem=1126M
                 module /vmlinuz-2.6.18-8.1.15.1.16.el5xen ro root=LABEL=/12 console=tty0 console=ttyS0,57600n8
                 module /initrd-2.6.18-8.1.15.1.16.el5xen.img
            title Oracle VM Server-ovs (xen-64-3.1.4 2.6.18-8.1.15.1.16.el5ovs)
                 root (hd0,0)
                 kernel /xen-64bit.gz dom0_mem=1126M
                 module /vmlinuz-2.6.18-8.1.15.1.16.el5xen ro root=LABEL=/12
                 module /initrd-2.6.18-8.1.15.1.16.el5xen.img
            title Oracle VM Server-ovs serial console (xen-64-3.1.4 2.6.18-8.1.15.1.16.el5ovs)
                 root (hd0,0)
                 kernel /xen-64bit.gz console=com1,vga com1=57600,8n1 dom0_mem=1126M
                 module /vmlinuz-2.6.18-8.1.15.1.16.el5xen ro root=LABEL=/12 console=tty0 console=ttyS0,57600n8
                 module /initrd-2.6.18-8.1.15.1.16.el5xen.img
            title Oracle VM Server-BOOT (2.6.18-8.1.15.1.16.el5BOOT)
                 root (hd0,0)
                 kernel /vmlinuz-2.6.18-8.1.15.1.16.el5BOOT ro root=LABEL=/12
                 initrd /initrd-2.6.18-8.1.15.1.16.el5BOOT.img
            • 3. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
              709365
              added mem=64G at the kernel line "kernel /xen-64bit.gz dom0_mem=1126M mem=64G" and launched VM after reboot.
              VM is hanging in the following state.

              Started domain OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM
              Linux version 2.6.18-128.0.0.0.2.el5xen (mockbuild@ca-build10.us.oracle.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)) #1 SMP Wed Jan 21 05:49:36 EST 2009
              BIOS-provided physical RAM map:
              Xen: 0000000000000000 - 0000000080800000 (usable)
              1328MB HIGHMEM available.
              727MB LOWMEM available.
              NX (Execute Disable) protection: active
              ACPI in unprivileged domain disabled
              Built 1 zonelists. Total pages: 526336
              Kernel command line: ro root=LABEL=/
              Enabling fast FPU save and restore... done.
              Enabling unmasked SIMD FPU exception support... done.
              Initializing CPU#0
              CPU 0 irqstacks, hard=c0744000 soft=c0724000
              PID hash table entries: 4096 (order: 12, 16384 bytes)
              Xen reported: 2925.998 MHz processor.
              Console: colour dummy device 80x25
              Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
              Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
              Software IO TLB disabled
              vmalloc area: ee000000-f4ffe000, maxmem 2d7fe000
              Memory: 2065988k/2105344k available (2126k kernel code, 30012k reserved, 875k data, 176k init, 1359880k highmem)
              Checking if this processor honours the WP bit even in supervisor mode... Ok.
              Calibrating delay using timer specific routine.. 7316.62 BogoMIPS (lpj=14633244)
              Security Framework v1.0.0 initialized
              SELinux: Initializing.
              selinux_register_security: Registering secondary module capability
              Capability LSM initialized as secondary
              Mount-cache hash table entries: 512
              CPU: L1 I cache: 32K, L1 D cache: 32K
              CPU: L2 cache: 256K
              CPU: L3 cache: 8192K
              Checking 'hlt' instruction... OK.
              SMP alternatives: switching to UP code
              CPU 1 irqstacks, hard=c0745000 soft=c0725000
              Brought up 1 CPUs
              checking if image is initramfs... it is
              Freeing initrd memory: 5196k freed
              Grant table initialized
              NET: Registered protocol family 16
              ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread C20F4AA0 could not acquire Mutex [2] [20060707]
              No dock devices found.
              ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread C20F4AA0 could not acquire Mutex [2] [20060707]
              SMP alternatives: switching to SMP code
              Initializing CPU#1
              migration_cost=210
              Brought up 2 CPUs
              PCI: setting up Xen PCI frontend stub
              ACPI: Interpreter disabled.
              Linux Plug and Play Support v0.97 (c) Adam Belay
              pnp: PnP ACPI: disabled
              xen_mem: Initialising balloon driver.
              usbcore: registered new driver usbfs
              usbcore: registered new driver hub
              PCI: System does not support PCI
              PCI: System does not support PCI
              NetLabel: Initializing
              NetLabel: domain hash size = 128
              NetLabel: protocols = UNLABELED CIPSOv4
              NetLabel: unlabeled traffic allowed by default
              NET: Registered protocol family 2
              IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
              TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
              TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
              TCP: Hash tables configured (established 131072 bind 65536)
              TCP reno registered
              audit: initializing netlink socket (disabled)
              type=2000 audit(1250341999.217:1): initialized
              highmem bounce pool size: 64 pages
              VFS: Disk quotas dquot_6.5.1
              Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
              Initializing Cryptographic API
              alg: No test for crc32c (crc32c-generic)
              ksign: Installing public key data
              Loading keyring
              - Added public key 5739E02E34E738D4
              - User ID: Oracle USA, Inc. (Kernel Module GPG key)
              io scheduler noop registered
              io scheduler anticipatory registered
              io scheduler deadline registered
              io scheduler cfq registered (default)
              pci_hotplug: PCI Hot Plug PCI Core version: 0.5
              rtc: IRQ 8 is not free.
              Non-volatile memory driver v1.2
              Linux agpgart interface v0.101 (c) Dave Jones
              RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
              Xen virtual console successfully installed as xvc0
              Event-channel device installed.
              Console: switching to colour frame buffer device 100x37
              input: Xen Virtual Keyboard/Mouse as /class/input/input0
              Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
              ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
              ide-floppy driver 0.99.newide
              usbcore: registered new driver hiddev
              usbcore: registered new driver usbhid
              drivers/usb/input/hid-core.c: v2.6:USB HID core driver
              PNP: No PS/2 controller found. Probing ports directly.
              i8042.c: No controller found.
              mice: PS/2 mouse device common for all mice
              md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
              md: bitmap version 4.39
              TCP bic registered
              Initializing IPsec netlink socket
              NET: Registered protocol family 1
              NET: Registered protocol family 17
              Using IPI No-Shortcut mode
              XENBUS: Device with no driver: device/vbd/51712
              XENBUS: Device with no driver: device/vbd/51728
              XENBUS: Device with no driver: device/vif/0
              XENBUS: Device with no driver: device/console/0
              Freeing unused kernel memory: 176k freed
              Write protecting the kernel read-only data: 383k
              USB Universal Host Controller Interface driver v3.0
              Registering block device major 202
              xvda: xvda1 xvda2 xvda3
              xvdb: xvdb1 xvdb2 xvdb3
              device-mapper: uevent: version 1.0.3
              device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised: dm-devel@redhat.com
              device-mapper: dm-raid45: initialized v0.2429
              EXT3-fs: INFO: recovery required on readonly filesystem.
              EXT3-fs: write access will be enabled during recovery.
              kjournald starting. Commit interval 5 seconds
              EXT3-fs: recovery complete.
              EXT3-fs: mounted filesystem with ordered data mode.
              SELinux: Disabled at runtime.
              type=1404 audit(1250342004.226:2): selinux=0 auid=4294967295 ses=4294967295
              • 4. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                Herbert van den Bergh-Oracle
                So no panic anymore. Try again with mem=32G. If that works, then I think this is a known bug, and I can see if there's a fix for it.
                • 5. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                  709365
                  still hanging. with 32G option.

                  Here is the console output.
                  ..
                  ..
                  ..
                  ..
                  Using IPI No-Shortcut mode
                  XENBUS: Device with no driver: device/vbd/51712
                  XENBUS: Device with no driver: device/vbd/51728
                  XENBUS: Device with no driver: device/vif/0
                  XENBUS: Device with no driver: device/console/0
                  Freeing unused kernel memory: 176k freed
                  Write protecting the kernel read-only data: 383k
                  USB Universal Host Controller Interface driver v3.0
                  Registering block device major 202
                  xvda: xvda1 xvda2 xvda3
                  xvdb: xvdb1 xvdb2 xvdb3
                  device-mapper: uevent: version 1.0.3
                  device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised: dm-devel@redhat.com
                  device-mapper: dm-raid45: initialized v0.2429
                  kjournald starting. Commit interval 5 seconds
                  EXT3-fs: mounted filesystem with ordered data mode.
                  SELinux: Disabled at runtime.
                  type=1404 audit(1250366554.247:2): selinux=0 auid=4294967295 ses=4294967295


                  Also tried booting VM server with 32-bit and setting mem=64G and mem=32G, no success so far.
                  also checked permission on the guest VM files, they have write permissions set on them.


                  Do you need any other details on our setup / filesystem?
                  Thanks for helping us in this issue.

                  Edited by: user1114312 on Aug 15, 2009 8:09 PM
                  • 6. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                    Herbert van den Bergh-Oracle
                    It could be that 32GB is still too close to the boundary, and some memory actually is allocated above the 32GB physical memory address. Try something lower, like 30GB or 24GB. If that doesn't make a difference, then the problem isn't the 32GB boundary.

                    Are you sure the vm is sending its console output to /dev/xvc0? Does it have a "console=xvc0" option on the kernel command line? If not, try connecting to its vnc framebuffer (see xm list -l output for the port number). Maybe its actually booting, but sending all its console output to the vnc framebuffer.
                    • 7. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                      709365
                      No success. Tried with setting 24G.
                      Still getting same error.

                      Started domain OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM
                      Linux version 2.6.18-128.0.0.0.2.el5xen (mockbuild@ca-build10.us.oracle.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)) #1 SMP Wed Jan 21 05:49:36 EST 2009
                      BIOS-provided physical RAM map:
                      Xen: 0000000000000000 - 0000000080800000 (usable)
                      1328MB HIGHMEM available.
                      727MB LOWMEM available.
                      NX (Execute Disable) protection: active
                      ACPI in unprivileged domain disabled
                      Built 1 zonelists. Total pages: 526336
                      Kernel command line: ro root=LABEL=/
                      Enabling fast FPU save and restore... done.
                      Enabling unmasked SIMD FPU exception support... done.
                      Initializing CPU#0
                      CPU 0 irqstacks, hard=c0744000 soft=c0724000
                      PID hash table entries: 4096 (order: 12, 16384 bytes)
                      Xen reported: 2925.998 MHz processor.
                      Console: colour dummy device 80x25
                      Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
                      Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
                      Software IO TLB disabled
                      vmalloc area: ee000000-f4ffe000, maxmem 2d7fe000
                      Memory: 2065988k/2105344k available (2126k kernel code, 30012k reserved, 875k data, 176k init, 1359880k highmem)
                      Checking if this processor honours the WP bit even in supervisor mode... Ok.
                      Calibrating delay using timer specific routine.. 7317.38 BogoMIPS (lpj=14634776)
                      Security Framework v1.0.0 initialized
                      SELinux: Initializing.
                      selinux_register_security: Registering secondary module capability
                      Capability LSM initialized as secondary
                      Mount-cache hash table entries: 512
                      CPU: L1 I cache: 32K, L1 D cache: 32K
                      CPU: L2 cache: 256K
                      CPU: L3 cache: 8192K
                      Checking 'hlt' instruction... OK.
                      SMP alternatives: switching to UP code
                      CPU 1 irqstacks, hard=c0745000 soft=c0725000
                      Brought up 1 CPUs
                      checking if image is initramfs... it is
                      Freeing initrd memory: 5196k freed
                      Grant table initialized
                      NET: Registered protocol family 16
                      ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread C20F4AA0 could not acquire Mutex [2] [20060707]
                      No dock devices found.
                      ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread C20F4AA0 could not acquire Mutex [2] [20060707]
                      SMP alternatives: switching to SMP code
                      Initializing CPU#1
                      migration_cost=3324
                      Brought up 2 CPUs
                      PCI: setting up Xen PCI frontend stub
                      ACPI: Interpreter disabled.
                      Linux Plug and Play Support v0.97 (c) Adam Belay
                      pnp: PnP ACPI: disabled
                      xen_mem: Initialising balloon driver.
                      usbcore: registered new driver usbfs
                      usbcore: registered new driver hub
                      PCI: System does not support PCI
                      PCI: System does not support PCI
                      NetLabel: Initializing
                      NetLabel: domain hash size = 128
                      NetLabel: protocols = UNLABELED CIPSOv4
                      NetLabel: unlabeled traffic allowed by default
                      NET: Registered protocol family 2
                      IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
                      TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
                      TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
                      TCP: Hash tables configured (established 131072 bind 65536)
                      TCP reno registered
                      audit: initializing netlink socket (disabled)
                      type=2000 audit(1250373276.902:1): initialized
                      highmem bounce pool size: 64 pages
                      VFS: Disk quotas dquot_6.5.1
                      Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
                      Initializing Cryptographic API
                      alg: No test for crc32c (crc32c-generic)
                      ksign: Installing public key data
                      Loading keyring
                      - Added public key 5739E02E34E738D4
                      - User ID: Oracle USA, Inc. (Kernel Module GPG key)
                      io scheduler noop registered
                      io scheduler anticipatory registered
                      io scheduler deadline registered
                      io scheduler cfq registered (default)
                      pci_hotplug: PCI Hot Plug PCI Core version: 0.5
                      rtc: IRQ 8 is not free.
                      Non-volatile memory driver v1.2
                      Linux agpgart interface v0.101 (c) Dave Jones
                      RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
                      Xen virtual console successfully installed as xvc0
                      Event-channel device installed.
                      Console: switching to colour frame buffer device 100x37
                      input: Xen Virtual Keyboard/Mouse as /class/input/input0
                      Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
                      ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
                      ide-floppy driver 0.99.newide
                      usbcore: registered new driver hiddev
                      usbcore: registered new driver usbhid
                      drivers/usb/input/hid-core.c: v2.6:USB HID core driver
                      PNP: No PS/2 controller found. Probing ports directly.
                      i8042.c: No controller found.
                      mice: PS/2 mouse device common for all mice
                      md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
                      md: bitmap version 4.39
                      TCP bic registered
                      Initializing IPsec netlink socket
                      NET: Registered protocol family 1
                      NET: Registered protocol family 17
                      Using IPI No-Shortcut mode
                      XENBUS: Device with no driver: device/vbd/51712
                      XENBUS: Device with no driver: device/vbd/51728
                      XENBUS: Device with no driver: device/vif/0
                      XENBUS: Device with no driver: device/console/0
                      Freeing unused kernel memory: 176k freed
                      Write protecting the kernel read-only data: 383k
                      USB Universal Host Controller Interface driver v3.0
                      Registering block device major 202
                      xvda: xvda1 xvda2 xvda3
                      xvdb: xvdb1 xvdb2 xvdb3
                      device-mapper: uevent: version 1.0.3
                      device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised: dm-devel@redhat.com
                      device-mapper: dm-raid45: initialized v0.2429
                      EXT3-fs: INFO: recovery required on readonly filesystem.
                      EXT3-fs: write access will be enabled during recovery.
                      kjournald starting. Commit interval 5 seconds
                      EXT3-fs: recovery complete.
                      EXT3-fs: mounted filesystem with ordered data mode.
                      SELinux: Disabled at runtime.
                      type=1404 audit(1250373281.854:2): selinux=0 auid=4294967295 ses=4294967295


                      Also tried with fresh guest file, just in case if it got corrupted. Here is the xm list -l output, but as VM is not fully booted and I am not able to connect to the VNC port.

                      [root@localhost ~]# xm list | grep OVM
                      OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM 1 2048 2 -b---- 11.1
                      [root@localhost ~]#

                      (domain
                      (domid 1)
                      (on_crash restart)
                      (uuid 4bafde25-6e5f-34c4-e8cb-7463c5ad7df9)
                      (bootloader_args )
                      (vcpus 2)
                      (name OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM)
                      (on_poweroff destroy)
                      (on_reboot restart)
                      (bootloader /usr/bin/pygrub)
                      (maxmem 2048)
                      (memory 2048)
                      (shadow_memory 0)
                      (cpu_weight 256)
                      (cpu_cap 0)
                      (features )
                      (on_xend_start ignore)
                      (on_xend_stop ignore)
                      (start_time 1250373274.15)
                      (cpu_time 11.060522893)
                      (online_vcpus 2)
                      (image
                      (linux
                      (kernel )
                      (notes
                      (FEATURES
                      'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'
                      )
                      (VIRT_BASE 3221225472)
                      (GUEST_VERSION 2.6)
                      (PADDR_OFFSET 3221225472)
                      (GUEST_OS linux)
                      (HYPERCALL_PAGE 3225423872)
                      (LOADER generic)
                      (PAE_MODE yes)
                      (ENTRY 3225419776)
                      (XEN_VERSION xen-3.0)
                      )
                      )
                      )
                      (status 2)
                      (state -b----)
                      (store_mfn 6202378)
                      (console_mfn 6202377)
                      (device
                      (vif
                      (mac 00:16:3e:0c:1b:b1)
                      (script /etc/xen/scripts/vif-bridge)
                      (uuid f64603d3-58ca-7742-8b23-f6a79ee54e1e)
                      (backend 0)
                      )
                      )
                      (device
                      (vbd
                      (protocol x86_32-abi)
                      (uuid f044d294-efa4-d4c7-6f3b-dc83c0762e3f)
                      (dev xvda:disk)
                      (uname
                      file:/OVS/seed_pool/OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM/System.img
                      )
                      (mode w)
                      (backend 0)
                      (bootable 1)
                      )
                      )
                      (device
                      (vbd
                      (protocol x86_32-abi)
                      (uuid 5bc977ab-0093-9ec7-0aaf-6b52c3de6eec)
                      (dev xvdb:disk)
                      (uname
                      file:/OVS/seed_pool/OVM_EL5U3_X86_ORACLE11G_SIEBEL811ENU_SIA21111_PVM/oracle11g_x86_asm.img
                      )
                      (mode w)
                      (backend 0)
                      (bootable 0)
                      )
                      )
                      (device (vkbd (backend 0)))
                      (device
                      (vfb
                      (vncunused 1)
                      (xauthority /root/.Xauthority)
                      (vnclisten 0.0.0.0)
                      (location 0.0.0.0:5900)
                      (type vnc)
                      (uuid 2e59c2ed-897c-50e6-8530-78ef606475b1)
                      )
                      )
                      (device
                      (console
                      (protocol vt100)
                      (location 2)
                      (uuid e7ddbb17-941c-bf1d-aa33-8da6136e47b1)
                      )
                      )
                      )
                      • 8. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                        Herbert van den Bergh-Oracle
                        What hostname or ip address did you use with vncviewer? You need to try to connect to <dom0>:0 to see the guest graphics console
                        • 9. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                          709365
                          Yes I used the dom0IP:0
                          also tried dom0IP:5900

                          Can't able to connect it.
                          • 10. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                            709365
                            FYI, I am using following versions of Oracle VM and Siebel VM Template. Are they compatible?

                            Oracle VM 2.1.2 Media Pack
                            Part No: B51487-01     
                            Updated: SEP-07-2008     

                            Siebel VM Template 2.0 for 8.1.1 release Media Pack for x86 (32 bit)
                            Part No: B54246-01     
                            Updated: APR-12-2009
                            • 11. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                              Herbert van den Bergh-Oracle
                              That's not right. Usually you can connect to the guest vnc console as soon as it starts booting. Did you check whether iptables is blocking the vncviewer connection? If you're using a Linux desktop, try logging into the dom0 with ssh -X, and running vncviewer from dom0.

                              Edited by: herb on Aug 16, 2009 10:30 AM
                              1 person found this helpful
                              • 12. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                                Herbert van den Bergh-Oracle
                                user1114312 wrote:
                                FYI, I am using following versions of Oracle VM and Siebel VM Template. Are they compatible?

                                Oracle VM 2.1.2 Media Pack
                                Part No: B51487-01     
                                Updated: SEP-07-2008     

                                Siebel VM Template 2.0 for 8.1.1 release Media Pack for x86 (32 bit)
                                Part No: B54246-01     
                                Updated: APR-12-2009
                                Yes, those should be compatible, but if you haven't updated 2.1.2 since you installed it, then that might explain at least the panic problem. I believe there were some fixes for systems with >64GB memory since 2.1.2. I suggest you register your system with ULN and run yum update.
                                • 13. Re: Kernel panic - not syncing: Fatal exception -  Siebel Database VM Templ
                                  709365
                                  Thanks this has resolved the issue and I am able to proceed ahead and got the vnc console.

                                  connected to the dom0 machine with -Y ssh option
                                  ssh -Y root@<dom-0 IP address>

                                  and then issued vncviewer dom-0IP:0

                                  Previously, I was trying to connect directly from my ubuntu laptop without using X11 forwarding.

                                  So finally adding mem=64G has originally resolved the "kernel panic" issue.

                                  Thanks for helping.