Solaris 11 can panic in kom_upgrade()

(Doc ID 2387430.1)

Last updated on APRIL 17, 2018

Applies to:

Solaris Operating System - Version 11 11/11 to 11.3 [Release 11.0]
Information in this document applies to any platform.

Symptoms

 The panic string and stack will be similar to this:

 

panic[cpu2]/thread=c4007e723540: unable to upgrade handle c4003de55a00 object c4004cd670b8 ref 2

genunix:kom_upgrade
zfs:arc_obj_free
zfs:arc_free_data_block
zfs:arc_inactivate_ref
zfs:dbuf_rele_and_unlock
zfs:dmu_tx_count_write
zfs:dmu_tx_hold_write
zfs:zfs_write
genunix:fop_write
genunix:pwrite

Cause

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