Mailinglist Archive: opensuse-bugs (5637 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=347416


           Summary: OpenSuse 10.3, Xen 3.1.0, unable to install domU over
                    http, entire physical server hangs and crashes
           Product: openSUSE 10.3
           Version: Final
          Platform: i686
        OS/Version: openSUSE 10.3
            Status: NEW
          Keywords: dogfood
          Severity: Blocker
          Priority: P5 - None
         Component: Xen
        AssignedTo: cgriffin@xxxxxxxxxx
        ReportedBy: gb2@xxxxxxx
         QAContact: qa@xxxxxxx
          Found By: Customer


When running OpenSuSE 10.3 (kernel 2.6.22.13-xenpae) on a Dell PowerEdge 2950,
and Xen 3.1.0, attempts to install an copy of OpenSuSE 10.3 as a domU instance
while reading the source via http:// to the local dom0 host results in the
entire physical server freezing at random points during the installation of
packages.

* This has been duplicated on four seperate Dell 2950 servers with different
configurations and manufacture dates.

* This occurs in both graphical (i.e. KDE/VNC) mode as well as text (i.e.
xenconsole) mode, and in both runlevels 3 and 5.

* Some had suspected that this might be related to bug 344877, which complains
about dom0 hanging under high traffic load, and indeed it did seem to fit the
profile; however, a modified kernel set to 100Hz did *not* resolve this
problem.  Moreover, I cannot duplicate that bug.  My installations crash within
5-10 minutes of starting.  But I ran "ping -f -q my.local.ip.address" for an
hour with no problems:
core1:/home/glen # ping -f -q my.local.ip.address
PING nnn.nnn.nnn.nnn (nnn.nnn.nnn.nnn) 56(84) bytes of data.
--- nnn.nnn.nnn.nnn ping statistics ---
196356167 packets transmitted, 196356167 received, 0% packet loss, time
3573391ms
rtt min/avg/max/mdev = 0.010/0.010/30.037/0.003 ms, pipe 2, ipg/ewma
0.018/0.011 ms
The ping flood ran successfully for hours under both the loopback address and
the public-facing IPV4 address.

* I am unable to install from the CD due to bugs in the vm-install python
script.

* My web server is just the stock apache2 server with the document root re-set
to /opensuse, a directory off root which contains a copy of the installation
CD.

* All the troubleshooting steps in /usr/share/doc/packages/xen/README.SuSE have
been followed, including booting with different kernel parameters such as
pnpacpi=off, lapic, acpi=off, apm=off, noirqbalance, etc. 

* I also tried to grab output using sync_console, xm dmesg, etc.  No log or
serial output is generated, no evidence of a panic exists.  The hardware...
just.... stops.

* Obviously, this bug prevents the use of Xen at all on any of my servers. 
(Plus, any bug which allows a domU instance to reach out and crash the dom0 box
would certainly be a show-stopper in any event.)

Please let me know how I can assist with the resolution of this bug, as we
cannot move to 10.3 or use virtualization until this is corrected.  Thank you!


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