Re: [Xen-users] domU (RedHat Enterprise Linux 4 u3) Kernel Panic

["Ubaidul Khan" <ukhanlists@xxxxxxxxxxx>]

David,

I dont have selinux policty/tools installed on the vm.  Howerver I did 
follow your advice and disabled selinux in the grub config file:
   default=0
   timeout=5
   splashimage=(hd0,0)/grub/splash.xpm.gz
   hiddenmenu
   title RedHat Enterprise Linux (2.6.19-34.ELxenU)
           root (hd0,0)
           kernel /vmlinuz-2.6.9-42.27.ELxenU ro selinux=0
           initrd /initrd-2.6.9-42.27.ELxenU.img

Still I get the same kernel panic.

Thank you for the suggestion.


> From: David Johnson <drjohnson@xxxxxxxxxxxxxxxxxxxxx>
> To: Ubaidul Khan <ukhanlists@xxxxxxxxxxx>
> Subject: Re: [Xen-users] domU (RedHat Enterprise Linux 4 u3) Kernel Panic
> Date: Mon, 04 Dec 2006 15:48:30 -0500
>
> Try disabling SELinux in the config.
> Set is to disabled...
>
> In your /etc/selinux/config on your guest
> SELINUX=disabled
>
>
>
> On 12/4/06 3:42 PM, "Ubaidul Khan" <ukhanlists@xxxxxxxxxxx> wrote:
>
> > Hello,
> >
> > Let me begin by apologizing if I am posting to the wrong list.
> >
> > I have 2.6.18-1.2798.fc6xen running as dom0.  I am trying to run
> > 2.6.9-42.27.ELxenU as a vm.  Following is the xen configuration for the 
> VM:
> >
> >   # cat /etc/xen/sand-box1
> >
> >     name = "sand-box1"
> >     memory = "512"
> >     disk = [
> > 'tap:aio:/vm/redhat/linux/as/4/u3/x86_64/sandbox/sb1.img,xvda,w', ]
> >     root =  "/dev/xvda3 ro"
> >     vif = [ 'mac=00:16:3e:45:c5:82, bridge=xenbr0', ]
> >     nographic=1
> >     uuid = "77b6fda0-7e0c-fd3a-0943-400a40a0b3e7"
> >     bootloader="/usr/bin/pygrub"
> >     vcpus=2
> >     on_reboot   = 'restart'
> >     on_crash    = 'restart'
> >
> > Following is the partition table on the virtual disk:
> >
> >   # fdisk -l /vm/redhat/linux/as/4/u3/x86_64/sandbox/sb1.img
> >
> >     last_lba(): I don't know how to handle files with mode 81a4
> >     You must set cylinders.
> >     You can do this from the extra functions menu.
> >
> >     Disk sb1.img: 0 MB, 0 bytes
> >     255 heads, 63 sectors/track, 0 cylinders
> >     Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> >       Device Boot      Start         End      Blocks   Id  System
> >     sb1.img1   *           1          19      152586   83  Linux
> >     sb1.img2              20         142      987997+  82  Linux swap /
> > Solaris
> >     sb1.img3             143         652     4096575   83  Linux
> >
> > Here is the fstab on domU I'm trying to create
> >
> >     /dev/xvda3           /                        ext3       defaults
> > 1 1
> >     devpts                  /dev/pts              devpts    
> gid=5,mode=620
> > 0 0
> >     tmpfs                   /dev/shm            tmpfs     defaults       
>  0
> > 0
> >     proc                     /proc                   proc       defaults
> >     0 0
> >     sysfs                    /sys                    sysfs      defaults
> >     0 0
> >     /dev/xvda2           swap                   swap      defaults       
>  0
> > 0
> >     /dev/xvda1           /boot                   ext3       defaults
> > 1 2
> >
> >
> >
> > Following is the grub configuration file for the vm:
> >
> >     default=0
> >     timeout=5
> >     splashimage=(hd0,0)/grub/splash.xpm.gz
> >     hiddenmenu
> >     title RedHat Enterprise Linux (2.6.19-34.ELxenU)
> >             root (hd0,0)
> >             kernel /vmlinuz-2.6.9-42.27.ELxenU ro selinux=1
> >             initrd /initrd-2.6.9-42.27.ELxenU.img
> >
> > When I try to boot the vm I get the following:
> >
> >   # xm create -c sand-box1
> >
> > Using config file "sand-box1".
> >
> > Going to boot RedHat Enterprise Linux (2.6.19-34.ELxenU)
> >   kernel: /vmlinuz-2.6.9-42.27.ELxenU
> >   initrd: /initrd-2.6.9-42.27.ELxenU.img
> > Started domain sand-box1
> > xen_start_info @ffffffff8071a000
> > shared @m0000fab000 @ffffffff80107000=@ffffffffff5fd000 [0x802]
> > xen_start_info: @ffffffff8071a000
> > cr3 0000000000101000 pml4p ffffffff80101ff8
> > pml4e 0000000000103067 (real 000000004186b067) pgdp ffffff8000103ff0
> > pgde 0000000000105067 (real 0000000041869067) pmdp ffffff8000105018
> > pmde 0000000000723067 (real 00000000541cb067) ptep ffffff80007238d0
> > pte 001000000071a027 (real 00100000541d4027)
> > xen_shared_info: @ffffffffff5fd000
> > cr3 0000000000101000 pml4p ffffffff80101ff8
> > pml4e 0000000000103067 (real 000000004186b067) pgdp ffffff8000103ff8
> > pgde 0000000000000000 is none
> > PAGE_OFFSET+1.2: @ffffff8000001000
> > cr3 0000000000101000 pml4p ffffffff80101ff8
> > pml4e 0000000000103067 (real 000000004186b067) pgdp ffffff8000103000
> > pgde 0000000000725067 (real 00000000541c9067) pmdp ffffff8000725000
> > pmde 0000000000726067 (real 00000000541c8067) ptep ffffff8000726008
> > pte 0000000000001167 (real 000000000dda1167)
> > Bootdata ok (command line is  root=/dev/xvda3 ro ro selinux=1)
> > Linux version 2.6.9-42.27.ELxenU 
> (brewbuilder@xxxxxxxxxxxxxxxxxxxxxxxxxxx)
> > (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Wed Nov 29 
> 15:18:23
> > EST 2006
> > kernel direct mapping tables up to 20800000 @ 725000-82a000
> > DMI not present.
> > Built 1 zonelists
> > Kernel command line:  root=/dev/xvda3 ro ro selinux=1 console=tty0
> > Initializing CPU#0
> > PID hash table entries: 4096 (order: 12, 131072 bytes)
> > Xen reported: 2992.692 MHz processor.
> > Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
> > Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
> > Memory: 506496k/532480k available (1614k kernel code, 0k reserved, 927k
> > data, 136k init)
> > Calibrating delay using timer specific routine.. 5989.95 BogoMIPS
> > (lpj=2994979)
> > Security Scaffold v1.0.0 initialized
> > SELinux:  Initializing.
> > SELinux:  Starting in permissive mode
> > There is already a security framework initialized, register_security 
> failed.
> > selinux_register_security:  Registering secondary module capability
> > Capability LSM initialized as secondary
> > Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
> > CPU: Trace cache: 12K uops, L1 D cache: 16K
> > CPU: L2 cache: 2048K
> > Brought up 2 CPUs
> > Initializing CPU#1
> > checking if image is initramfs... it is
> > Grant table initialized
> > NET: Registered protocol family 16
> > Brought up 2 CPUs
> > xen_mem: Initialising balloon driver.
> > IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
> > audit: initializing netlink socket (disabled)
> > audit(1165264456.719:1): initialized
> > VFS: Disk quotas dquot_6.5.1
> > Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> > SELinux:  Registering netfilter hooks
> > Initializing Cryptographic API
> > ksign: Installing public key data
> > Loading keyring
> > - Added public key BACE81FA11924ECA
> > - User ID: Red Hat, Inc. (Kernel Module GPG key)
> > rtc: IRQ 8 is not free.
> > i8042.c: No controller found.
> > RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
> > Xen virtual console successfully installed as tty1
> > Event-channel device installed.
> > mice: PS/2 mouse device common for all mice
> > md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
> > NET: Registered protocol family 2
> > IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
> > TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
> > TCP bind hash table entries: 131072 (order: 9, 2097152 bytes)
> > TCP: Hash tables configured (established 131072 bind 131072)
> > Initializing IPsec netlink socket
> > NET: Registered protocol family 1
> > NET: Registered protocol family 17
> > XENBUS: Device with no driver: device/vbd/51712
> > XENBUS: Device with no driver: device/vif/0
> > Red Hat nash version 4.2.1.6 starting
> > Mounted /proc filesystem
> > Mounting sysfs
> > Creating /dev
> > Starting udev
> > Loading jbd.ko module
> > Loading ext3.ko module
> > Creating root device
> > Mounting root filesystem
> > mount: error 6 mounting ext3
> > mount: error 2 mounting none
> > Switching to new root
> > switchroot: mount failed: 22
> > umount /initrd/dev failed: 2
> > Kernel panic - not syncing: Attempted to kill init!
> >
> >
> > Any help is grately apprciated.
> >
> >
> > --
> > uk
> >
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>
> Sincerely,
>
>
> David Johnson
> drjohnson@xxxxxxxxxxxxxxxxxxxxx
> Hampton City Schools
> One Franklin Street
> Hampton, Virginia 23669
> 757.727.2061 office
> 757.592.3833 mobile
> 27 internal dc
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