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Solaris 11.4 can panic with Deadlock: cycle in blocking chain in stmf driver code (Doc ID 2713686.1)

Last updated on SEPTEMBER 23, 2020

Applies to:

Solaris Operating System - Version 11.4 to 11.4 [Release 11.0]
Information in this document applies to any platform.

Symptoms

The panic string will be: Deadlock: cycle in blocking chain

Depending on which of the two thread involved in the deadlock detected the condition, the panic stack will include either:

stmf_handle_resume_itl
stmf_itl_clear_aca
stmf_task_lu_killall

or:

tmf_itl_task_done
stmf_ts_mark_task_free
stmf_ts_update_state

 

Cause

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In this Document
Symptoms
Cause
Solution

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