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Solaris 11 or Solaris 10 SPARC servers can panic "mpo_cpu_add: Cannot read MD" during dynamic reconfiguration (Doc ID 2394029.1)

Last updated on MAY 02, 2018

Applies to:

Solaris Operating System - Version 10 3/05 to 11.1 [Release 10.0 to 11.0]
Oracle Solaris on SPARC (64-bit)

Symptoms

The panic string and stack will be similar to this:

panic[cpu16]/thread=c4012102c860: mpo_cpu_add: Cannot read MD

unix:mp_cpu_configure
unix:cpu_configure
dr_cpu:dr_cpu_configure
dr_cpu:dr_cpu_list_wrk
dr_cpu:dr_cpu_data_handler
ds:ds_cap_send
vlds:vlds_ioctl
genunix:fop_ioctl
genunix:ioctl

Cause

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