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32-Bit Virtual SMP Solaris Guest Operating Systems Become Unresponsive if You Execute Certain CPU Commands (5365186)

Details

Why does my 32-bit virtual SMP Solaris system stop executing commands and become unresponsive after I use the psradm command to change the status of a CPU ?

Solution

In virtual SMP 32-bit Solaris guest operating systems, processors can deadlock if you use the psradm command to change CPU status while the system is experiencing a moderate number of disk transactions. This is a particular problem if you issue the psradm command repeatedly.
 
Because this combination of events is unusual, you are unlikely to experience this problem. If you do experience this problem, reboot the guest operating system.

Sun is tracking this issue with CR 6425990.

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