Ultra[TM] 1 and Ultra 2 panic with error: Timeout on System Bus (Doc ID 1005837.1)

Last updated on FEBRUARY 01, 2017

Applies to:

Sun Ultra 1 Workstation - Version Not Applicable and later
Sun Ultra 2 Workstation - Version Not Applicable and later
All Platforms

Symptoms

 A Bus Timeout Error (TO event) on the System Bus means that the CPU tried to read or write from a memory location and the device at that location did not respond.

Example:

WARNING: [AFT1] Timeout on System Bus in privileged mode from CPU0 Data access at TL=0, errID 0x0019487b.66825e5e
AFSR 0x00000000.88000000<PRIV,TO> AFAR 0x000001ff.10700000

Cause

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