Comment 18 for bug 362691

Re: [Xen-devel] Attempt to build xen-unstable on Ubuntu 9.04 Server (Ubuntu Desktop installed)
Friday, May 8, 2009 1:40 PM From: "Boris Derzhavets" <email address hidden>
Add sender to Contacts To: "Alex Zeffertt" <email address hidden>
Cc: "xen-devel" <email address hidden>, "Ian Jackson" <email address hidden>
     Notice, that direct port Xen 3.4 ( with 2.6.30-rc3-tip) to F11 (preview) has been tested with no problems. Just no xen-lib and xen-lib dependent packages: libvirt,libvirt-python,.. is a must . Problem been described seems to me as python 2.6 implementation issue on Ubuntu 9.04 Server.

Boris.

--- On Fri, 5/8/09, Boris Derzhavets <email address hidden> wrote:

    From: Boris Derzhavets <email address hidden>
    Subject: Re: [Xen-devel] Attempt to build xen-unstable on Ubuntu 9.04 Server (Ubuntu Desktop installed) To: "Alex Zeffertt" <email address hidden>
    Cc: "xen-devel" <email address hidden>, "Ian Jackson" <email address hidden>
    Date: Friday, May 8, 2009, 11:45 AM

    Follow your suggestion i was able to build Xen Host on Ubuntu 9.04 Server
    with the most recent Xen-3.4-rc4-pre and 2.6.30-rc3-tip pvops kernel via
    Jeremy's git repo. Due to newly built Xen Host dual boot with similar one on top of Ubuntu 8.10 Server i just copied F10 PV profile to new Xen Host and attempted to run
    F10 PV :-
    # xm create -c f10.pyrun
    Name ID Mem VCPUs State Time(s)
    Domain-0 0 6034 4 r----- 138.5
    F10PV 5 2048 1 --p--- 0.0
    root@ServerJaunty:/home/boris/vm# xm unpause F10PV
    /usr/lib/python2.6/site-packages/xen/util/acmpolicy.py:20: DeprecationWarning: the sha module is deprecated; use the hashlib module instead
      import sha
    # xm unpause F10PV
    PCI: Fatal: No config space access function found
    IO APIC resources could be not be allocated.
    Loading /lib/kbd/keymaps/i386/qwerty/us.map
    root@ServerJaunty:/home/boris/vm# Error: Device 0 (vif) could not be connected. Hotplug scripts not working.
    Then i've tried to comment out vif in profile:
    PCI: Fatal: No config space access function found
    IO APIC resources could be not be allocated.
    Loading /lib/kbd/keymaps/i386/qwerty/us.map
    BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
    IP: [<ffffffffa00010e5>] backend_changed+0x2d5/0x3af [xen_blkfront]
    PGD 7d1a0067 PUD 7d1a1067 PMD 7d1b0067 PTE 0
    Oops: 0000 [1] SMP
    CPU 1
    Modules linked in: xen_blkfront
    Pid: 19, comm: xenwatch Not tainted 2.6.27.19-170.2.35.fc10.x86_64 #1
    RIP: e030:[<ffffffffa00010e5>] [<ffffffffa00010e5>] backend_changed+0x2d5/0x3af [xen_blkfront]
    RSP: e02b:ffff88007f40fdf0 EFLAGS: 00010246
    RAX: 0000000000000000 RBX: ffff88007d09b2c0 RCX: 0000000000000000
    RDX: ffff88007f40fe28 RSI: 0000000000000005 RDI: ffff88007ff5f400
    RBP: ffff88007f40fe80 R08: ffff88007f40fdd0 R09: ffff88007f40fcc0
    R10: 0000000000000001 R11: ffff880000000018 R12: ffff88007ff5f400
    R13: ffff88007d0be000 R14: 000000000000000a R15: ffffffff817e6eb4
    FS: 00007f80e570a6f0(0000) GS:ffff88007fc04880(0000) knlGS:0000000000000000
    CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
    CR2: 0000000000000000 CR3: 000000007d1a4000 CR4: 0000000000002660
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Process xenwatch (pid: 19, threadinfo ffff88007f40e000, task ffff88007ffd5c40)
    Stack: ffff88007f40fe00 ffff88007f40fe40 ffffffff816e2500 ffffffff816e2500
     ffffffff81458716 ffffffff8146545f ffff88007f40fe7c 0000000000000000
     000000000000000a ffff88007d09b2c0 ffff88007ff5f400 ffffffffa0002ac0
    Call Trace:
     [<ffffffff811ca80a>] otherend_changed+0x81/0x8a
     [<ffffffff811c9438>] xenwatch_thread+0x101/0x134
     [<ffffffff8105553d>] ? autoremove_wake_function+0x0/0x38
     [<ffffffff811c9337>] ? xenwatch_thread+0x0/0x134
     [<ffffffff810551f7>] kthread+0x49/0x76
     [<ffffffff81011719>] child_rip+0xa/0x11
     [<ffffffff81010a37>] ? restore_args+0x0/0x30
     [<ffffffff8101170f>] ? child_rip+0x0/0x11
    Code: 58 08 e9 97 00 00 00 49 8b 7d 00 48 c7 c2 b9 15 00 a0 be ed ff ff ff 48 8b 4f 10 31 c0 e8 fe 75 1c e1 e9 cf 00 00 00 49 8b 45 08 <8b> 38 c1 e7 14 0b 78 04 e8 5a 5c 0e e1 48 85 c0 48 89 c3 75 16
    RIP [<ffffffffa00010e5>] backend_changed+0x2d5/0x3af [xen_blkfront]
     RSP <ffff88007f40fdf0>
    CR2: 0000000000000000
    ---[ end trace 06219b74fe5c0c01 ]---
    root@ServerJaunty:/home/boris/vm# Error: Device 51712 (vbd) could not be connected. Hotplug scripts not work

    The image been used (on /dev/sdc) works fine with the same F10 PV @ Xen
    Host ( absolutly identical new one) , but been built on top of Ubuntu 8.10 Server ( all servers 64-bit).

    Boris.

    --- On Wed, 5/6/09, Alex Zeffertt <email address hidden> wrote:

        From: Alex Zeffertt <email address hidden>
        Subject: Re: [Xen-devel] Attempt to build xen-unstable on Ubuntu 9.04 Server (Ubuntu Desktop installed)
        To: "<email address hidden>" <email address hidden>
        Cc: "Ian Jackson" <email address hidden>, "xen-devel" <email address hidden>
        Date: Wednesday, May 6, 2009, 12:37 PM
        Hi,
        It looks like the problem is that if you have
         python2.6
         installed then
        xen-unstable.hg installs into /usr/lib/python2.6/site-packages/xen, but
        site-packages is no longer in the default path in python2.6.
        A hack which fixes this is to add the following two lines to
        /etc/python2.6/sitecustomize.py:
          import sys
          sys.path.append('/usr/lib/python2.6/site-packages')
        but I'm not sure what the proper fix would be...
        Regards,
        Alex
        PS This is also relevant
        https://bugs.launchpad.net/ubuntu/+source/python2.6/+bug/362570