| Summary: | RHEL 6 Xen HVM guest with multiple vcpus crashes on Intel with 96 CPUs and 1T memory | ||||||||||||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | Jinxin Zheng <jzheng> | ||||||||||
| Component: | kernel | Assignee: | Red Hat Kernel Manager <kernel-mgr> | ||||||||||
| Status: | CLOSED DUPLICATE | QA Contact: | Virtualization Bugs <virt-bugs> | ||||||||||
| Severity: | high | Docs Contact: | |||||||||||
| Priority: | high | ||||||||||||
| Version: | 6.1 | CC: | drjones, leiwang, pcao, qwan | ||||||||||
| Target Milestone: | rc | ||||||||||||
| Target Release: | --- | ||||||||||||
| Hardware: | x86_64 | ||||||||||||
| OS: | Linux | ||||||||||||
| Whiteboard: | |||||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||||
| Doc Text: | Story Points: | --- | |||||||||||
| Clone Of: | Environment: | ||||||||||||
| Last Closed: | 2011-06-10 12:37:56 UTC | Type: | --- | ||||||||||
| Regression: | --- | Mount Type: | --- | ||||||||||
| Documentation: | --- | CRM: | |||||||||||
| Verified Versions: | Category: | --- | |||||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||||
| Attachments: |
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Created attachment 504058 [details]
guest console output
Created attachment 504059 [details]
xend log
Created attachment 504060 [details]
xm dmesg
Oh, I forgot one thing: the HVM guest is given more than 1 vcpus. Single vcpu did not trigger the crash. Try clocksource=jiffies on the guest kernel command line. (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. *** This bug has been marked as a duplicate of bug 661211 *** |
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.