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Solaris 11 can panic with "mutex_exit: bad mutex" in cnex driver code during dynamic reconfiguration (Doc ID 2410677.1)

Last updated on JUNE 13, 2018

Applies to:

Solaris Operating System - Version 11.3 to 11.3 [Release 11.0]
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)

Symptoms

The panic string and stack will be similar to this:

panic[cpu93]/thread=2a100a1db40:
mutex_enter: bad mutex, lp=6400e66b71b0 owner=deadbeefdeadbee8
thread=2a100a1db40

genunix:ddi_prop_search_common
genunix:ddi_prop_lookup_common
genunix:ddi_prop_get_int
genunix:i_ddi_get_intr_weight
unix:intr_dist_cpuid_add_device_weight
cnex:cnex_intr_new_cpu
cnex:cnex_intr_redist
unix:intr_redist_all_cpus
unix:cpu_disable_intr
unix:cpu_intr_disable
unix:cpu_offline
dr_cpu:dr_cpu_unconfigure
dr_cpu:dr_cpu_list_wrk
dr_cpu:dr_cpu_data_handler
ds:ds_dispatch_inline
ds:ds_handle_recv
genunix:taskq_thread

Cause

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