My Oracle Support Banner

Panic due to " Deadlock: cycle in blocking chain" with deadlocked threads in i_ddi_devi_link_snode() and devi_stillreferenced() (Doc ID 2569699.1)

Last updated on JUNE 12, 2023

Applies to:

Solaris Operating System - Version 11.4 and later
Information in this document applies to any platform.

Symptoms

System panicked due to " Deadlock: cycle in blocking chain". Deadlocked threads were in i_ddi_devi_link_snode() and devi_stillreferenced()

A simple deadlock between callers of devi_stillreferenced() which in some cases are holding the devi_lock, and i_ddi_devi_link_snode(), which is holding the s_lock and doing an enter on the devi_lock.

Changes

This is a regression that was introduced in S11.4 SRU8

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.