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Soft lockup in Linux kernel prior to 2.6.37 on virtual machine stop

Last Updated: Sep 08, 2016 04:28PM UTC

Symptoms

While stopping virtual machine the soft lockup of the guest OS is observed with code RIP: 0010:[<ffffffff810c64ef>]  [<ffffffff810c64ef>] stop_machine_cpu_stop+0x6f/0xe0.

Cause

The issue could be observed in all distributions with kernels based on mainline kernels up to 2.6.37.
In CentOS\RHEL distributions it is tracked in Red Hat kernel bug #855840, which is supposedly fixed in RHEL 6.4 onward.
NOTE: The issue occurs rarely on the late stages of the system shutdown, thus there is no data loss expected.  

 

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