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Solaris 11 can panic with Deadlock: cycle in blocking chain (Doc ID 2413515.1)

Last updated on JUNE 20, 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 will be: Deadlock: cycle in blocking chain

The panic stack will be similar to either this:

turnstile_will_prio
iturnstile_block
mutex_vector_enter
mutex_enter - frame recycled
ipnetif_in_zone
ipnet_walk_if
stubs_common_code
ipnet_walk_if - frame recycled
devipnet_filldir
devipnet_readdir
fop_readdir
getdents64
_syscall_no_proc_exit32

or this:

turnstile_block
mutex_vector_enter
mutex_enter - frame recycled
ipnetif_clone_create
ipnet_add_ifaddr
ipnet:ipnet_lifup_ev
ipnet:ipnet_nicevent_task
genunix:taskq_thread
thread_start

Cause

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