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Re: [Xen-users] domU does not fully boot

To: Abdul Qadeer <qadeer.qadeer@xxxxxxxxx>
Subject: Re: [Xen-users] domU does not fully boot
From: Jon Rafkind <rafkind@xxxxxxxxxxx>
Date: Wed, 11 Feb 2009 21:48:39 -0700
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Abdul Qadeer wrote:
I guess this problem is related to TLS and the Xen documentation
says something to disable TLS.

Well I already disabled tls (by moving it to tls.disabled) and anyway that directory was empty so I don't know what its complaining about. The message shows up even when I "disabled" tls.

Abdul Qadeer

On Thu, Feb 12, 2009 at 6:44 AM, Jon Rafkind <rafkind@xxxxxxxxxxx <mailto:rafkind@xxxxxxxxxxx>> wrote:

    I just started using xen and need some help getting going. I'm
    using xen-3.3. So far I've created two kernels by editing
    configs/Linux.mk so that I have and 2.6.18-8-xenU.
    The xen kernel has some extra configuration options, the xenU
    kernel is the default config that comes with the xen distribution.

    I'm booted into the xen dom0 kernel and have created a root disk
    for the domU machine. The bootup screen gets to the point where it
    says "Continue..." and doesn't get further. I tried using
    gdbserver-xen but the backtrace I see is useless hex addresses, I
    can't get any useful info from it. I'm not sure how to debug
    further. Can anyone provide a tip?

    Here is the console from domU:

    $ sudo xm console test
    io scheduler cfq registered
    RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Xen virtual console successfully installed as xvc0 Event-channel device installed. netfront:
    Initialising virtual ethernet driver.
    i8042.c: No controller found.                 mice: PS/2 mouse
    device common for all mice
    TCP bic registered                        NET: Registered protocol
    family 1
    NET: Registered protocol family 17
    Using IPI No-Shortcut mode       xen-vbd: registered block device
    major 8
    blkfront: sda2: barriers enabled       XENBUS: Device with no
    driver: device/console/0
    Freeing unused kernel memory: 140k freed      kjournald starting.
     Commit interval 5 seconds
    EXT3-fs: mounted filesystem with ordered data mode.
     ** WARNING: Currently emulating unsupported memory accesses  **
     **          in /lib/tls glibc libraries. The emulation is    **
     **          slow. To ensure full performance you should      **
     **          install a 'xen-friendly' (nosegneg) version of   **
     **          the library, or disable tls support by executing **
     **          the following as root:                           **
     **          mv /lib/tls /lib/tls.disabled                    **
     ** Offending process: modprobe (pid=663)                     **
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