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Solaris 11.4 can panic with Deadlock: cycle in blocking chain while performing fcp_watch() and fcp_soft_state_unlink() (Doc ID 2736327.1)

Last updated on DECEMBER 11, 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

The panic stack will include either:

fcp_watch
callout_list_expire
callout_expire

~~~ or ~~~

fcp_soft_state_unlink
fcp_handle_port_detach
fctl_detach_ulps

Cause

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In this Document
Symptoms
Cause
Solution

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