SPARC T4 system panic due to send_mondo timeout (Doc ID 1571692.1)

Last updated on AUGUST 16, 2017

Applies to:

SPARC T4-1 - Version All Versions to All Versions [Release All Releases]
SPARC T4-1B - Version All Versions to All Versions [Release All Releases]
SPARC T4-2 - Version All Versions to All Versions [Release All Releases]
SPARC T4-4 - Version All Versions to All Versions [Release All Releases]
Netra SPARC T4-2 Server - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

A send_mondo panic or Oracle VM guest domain hang will occur when a CPU fails to respond to crosscall request.

Example send_mondo panic output;

    send mondo timeout [retries: 0x903b8]  cpuids:  0x10 0x11 0x13 0x15 0x16

    panic[cpu60]/thread=2a102c35c80: send_mondo_set: timeout

    000002a102c34ec0 unix:send_mondo_set+548 (a, ffff, 183c780, 1, 3000f4d8600, 5)
      %l0-3: 000000000000003a 00113b08c7506524 00000000010bd800 00000000010bd800

Cause

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