https://bugzilla.novell.com/show_bug.cgi?id=881283
https://bugzilla.novell.com/show_bug.cgi?id=881283#c2
--- Comment #2 from gert redlich 2014-06-04 19:25:23 UTC ---
June 2014 - Hacking the network environment on a XEN based Server
Additional detailed explanation, what happened :
Suddenly my HP Opteron server did no more respond. My NOC monitor die ring.
Firstly I did remember an AMD Opteron 270 Family bug, physically halting all
CPUs by hacking one virtual guest.
But all HP DL380/385 Servers include a watchdag, after a timeout resetting the
box, if the CPU seems to be killed.
Checking the master console with iLO, the Server was booted correctly. I could
log in as root and did call "htop" and did see all 4 CPUs running. But I could
not login with putty - really strange and very new.
Calling "ifconfig" I did see no bridges and no vifs, I did see:
lo Link encap:Lokale Schleife
inet Adresse:127.0.0.1 Maske:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:652 errors:0 dropped:0 overruns:0 frame:0
TX packets:652 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 Sendewarteschlangenlänge:0
RX bytes:1694747 (1.6 Mb) TX bytes:1694747 (1.6 Mb)
really strange
using "yast" and saving the network configuration did help, the network was
back again. After a "reboot" the server did boot and connecting all ports and
bridges and all VMs a ususal.
And because this occures again - 6 hours later -, I did write it down here.
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