[XenPPC] Machine check: instruction-fetch TLB tablewalk

[Amos Waterland <apw@xxxxxxxxxx>]

Just saw this on a JS21 blade (internal name is cso52):

(XEN) MACHINE CHECK: IS Recoverable
(XEN) ----[ Xen-3.0-unstable     ]----
(XEN) CPU: 00000000   DOMID: 00000000
(XEN) pc 0000000010046510 msr 00000000000cf032
(XEN) lr 0000000010063bf4 ctr 000000000fde93c0
(XEN) srr0 ffffffffffffffff srr1 ffffffffffffffff
(XEN) r00: 0000000010063be4 00000000ffda9710 00000000f7fcd470 0000000000000003
(XEN) r04: 00000000100a9268 0000000000000001 0000000000000030 fffffffffefefeff
(XEN) r08: 000000000fecb4d8 00000000100a0000 0000000000000019 0000000000000000
(XEN) r12: 0000000028242424 00000000100a3300 0000000010020000 0000000000000000
(XEN) r16: 00000000100a0000 00000000100a9008 00000000100a0000 0000000010080000
(XEN) r20: 0000000000000000 0000000000000000 0000000010060000 0000000000000000
(XEN) r24: 0000000000000000 0000000000000008 00000000100a9df8 00000000100a0000
(XEN) r28: 0000000000000000 00000000100a9268 00000000100a0000 0000000010063bc0
(XEN) dar 0x00000000ffda9628, dsisr 0x02200000
(XEN) hid4 0x0000000000000000
(XEN) ---[ backtrace ]---
(XEN) SP (ffda9710) is not in xen space
(XEN) SRR1: 0x00000000000cf032
(XEN) 0b11: Exception caused by a hardware uncorrectable
(XEN)       error (UE) detected while doing a reload of an
(XEN)       instruction-fetch TLB tablewalk.
(XEN) 
(XEN) DSISR: 0x02200000
(XEN) program_exception: machine check
(XEN) machine_halt called: spinning....
(XEN) machine_halt called


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