[QUOTE=ab;17765]If I understand you correctly you have a VM and another bare metal system
which both have similar specs (as much as possible between physical and
virtual, perhaps), and both hang in the same way.
Do they hang at the same time? Are they hosting the same services (web,
database, etc.)? Are they used for the backends to the same frontend?
Are you able to go to a TTY at all (Ctrl+Alt+F2) in case you are in a GUI
or a locked TTY but another one works? What is the application involved?
Your best bet at this point is to try to find a way to reliably reproduce
the problem (if it happens to both systems see if something in particular
is affecting both systems in the same way) and then setup the Magic SysRQ
keys (Google it on the SUSE sites) to force a kernel dump after opening an
SR with SUSE. They can analyze the kernel dump, or maybe even provide
alternatives to test before getting to this point (including applying
public patches or internal patches for known issues that have not been
released yet) and get you on your way. The more concrete information you
have before doing to them, though, the better. They’ll ask for a
‘supportconfig’ which is a utility that is likely already on your systems.
Go ahead and run it now (as ‘root’) on both systems and you can get an
idea of what it creates, which is a big archive of text files that include
configuration and performance data about your system.
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Hi, you are right…
One is Physical another one is running in Virtual Machine…
Both servers are running SAP application…
When the hangs happen, we directly reboot the server without trying the TTY (Crtl+Alt+F2) command…
I haven’t submit the SR to SUSE support, because I not sure my customer buy any SUSE support…
I will check with them later…
Meanwhile, I will try to setup the Magic SysRQ keys that you mentioned above…
After generate the ‘supportconfig’, I need to send the data to the SUSE support team for further analyse?
Not sure, I can share the data to you for advise?