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Created attachment 504057[details]
guest domain config
Description of problem:
On an Intel host with 96 CPUs and 1T mem, RHEL 6.1 Xen HVM fails to boot. It crashes a few seconds after it's created, endlessly outputing some like "BUG: soft lockup - CPU#1 stuck for 106s!".
Tested 64 bit and 32 bit guests, both crashed.
Version-Release number of selected component (if applicable):
guest: kernel-2.6.32-131.0.15.el6
host: kernel-xen-2.6.18-267.el5, xen-3.0.3-132.el5
CPU is Intel Xeon E7450, with 1T memory.
How reproducible:
Always
Steps to Reproduce:
1.
On the described host, xm create the HVM domain using the attached config.
2.
3.
Actual results:
Guest crash after a while.
Expected results:
Don't crash.
Additional info:
RHEL 6 PV guest does not crash in the same env.
(In reply to comment #8)
> Try clocksource=jiffies on the guest kernel command line.
That's working!
It doesn't crash after adding clocksource=jiffies.
Created attachment 504057 [details] guest domain config Description of problem: On an Intel host with 96 CPUs and 1T mem, RHEL 6.1 Xen HVM fails to boot. It crashes a few seconds after it's created, endlessly outputing some like "BUG: soft lockup - CPU#1 stuck for 106s!". Tested 64 bit and 32 bit guests, both crashed. Version-Release number of selected component (if applicable): guest: kernel-2.6.32-131.0.15.el6 host: kernel-xen-2.6.18-267.el5, xen-3.0.3-132.el5 CPU is Intel Xeon E7450, with 1T memory. How reproducible: Always Steps to Reproduce: 1. On the described host, xm create the HVM domain using the attached config. 2. 3. Actual results: Guest crash after a while. Expected results: Don't crash. Additional info: RHEL 6 PV guest does not crash in the same env.