xref: /onnv-gate/usr/src/cmd/fm/eversholt/files/i386/i86pc/intel.esc (revision 12437:76e2c024699d)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#pragma dictionary "INTEL"

/*
 * Eversholt rules for the intel CPU/Memory
 */

/*
 * Ereports for Simple error codes.
 */

#define SMPL_EVENT(leafclass, t) \
	event ereport.cpu.intel.leafclass@chip/core/strand { within(t) }

SMPL_EVENT(unknown, 1s);
SMPL_EVENT(unclassified, 1s);
SMPL_EVENT(microcode_rom_parity, 1s);
SMPL_EVENT(external, 1s);
SMPL_EVENT(frc, 1s);
SMPL_EVENT(internal_timer, 1s);
SMPL_EVENT(internal_parity, 1s);
SMPL_EVENT(internal_unclassified, 1s);

/*
 * Propogations for all but "external" and "unknown" simple errors.
 * If the error is uncorrected we produce a fault immediately, otherwise
 * we diagnose it to an upset and decalre a fault when the SERD engine
 * trips. prop statement for ereport.cpu.intel.internal_unclassified is
 * moved to the Nehalem EX section to deal with poison case.
 */

engine serd.cpu.intel.simple@chip/core/strand, N=3, T=72h;
event fault.cpu.intel.internal@chip/core/strand,
    engine=serd.cpu.intel.simple@chip/core/strand;

prop fault.cpu.intel.internal@chip/core/strand
    { payloadprop("error_uncorrected") == 1 ? setserdincrement(4) : 1} (0)->
    ereport.cpu.intel.microcode_rom_parity@chip/core/strand,
    ereport.cpu.intel.internal_timer@chip/core/strand,
    ereport.cpu.intel.internal_parity@chip/core/strand,
    ereport.cpu.intel.unclassified@chip/core/strand,
    ereport.cpu.intel.frc@chip/core/strand;

/*
 * Ereports for Compound error codes.  These are in pairs "foo" and "foo_uc"
 * for the corrected and uncorrected version of each error type.  All are
 * detected at chip/core/strand.
 */

#define	CMPND_EVENT(leafclass, t) \
	event ereport.cpu.intel.leafclass@chip/core/strand { within(t) }; \
	event ereport.cpu.intel.leafclass/**/_uc@chip/core/strand { within(t) }

/*
 * Ereports for Compound error codes - intel errors
 */
CMPND_EVENT(l0cache, 1s);
CMPND_EVENT(l1cache, 1s);
CMPND_EVENT(l2cache, 1s);
CMPND_EVENT(cache, 1s);

/*
 * Ereports for Compound error codes - TLB errors
 */
CMPND_EVENT(l0dtlb, 1s);
CMPND_EVENT(l1dtlb, 1s);
CMPND_EVENT(l2dtlb, 1s);
CMPND_EVENT(dtlb, 1s);

CMPND_EVENT(l0itlb, 1s);
CMPND_EVENT(l1itlb, 1s);
CMPND_EVENT(l2itlb, 1s);
CMPND_EVENT(itlb, 1s);

CMPND_EVENT(l0tlb, 1s);
CMPND_EVENT(l1tlb, 1s);
CMPND_EVENT(l2tlb, 1s);
CMPND_EVENT(tlb, 1s);

/*
 * Ereports for Compound error codes - memory hierarchy errors
 */
CMPND_EVENT(l0dcache, 1s);
CMPND_EVENT(l1dcache, 1s);
CMPND_EVENT(l2dcache, 1s);
CMPND_EVENT(dcache, 1s);

CMPND_EVENT(l0icache, 1s);
CMPND_EVENT(l1icache, 1s);
CMPND_EVENT(l2icache, 1s);
CMPND_EVENT(icache, 1s);

/*
 * Ereports for Compound error codes - bus and interconnect errors
 */
CMPND_EVENT(bus_interconnect, 1s);
CMPND_EVENT(bus_interconnect_memory, 1s);
CMPND_EVENT(bus_interconnect_io, 1s);

/*
 * Compound error propogations.
 *
 * We resist the temptation propogate, for example, a single dcache fault
 * to all ereports mentioning dcache (l0dcache, l1dcache, l2dcache, dcache).
 * Instead we will diagnose a distinct fault for each possible cache level,
 * whether or not current chips have dcaches at all levels.
 *
 * Corrected errors are SERDed and produce a fault when the engine fires;
 * the same fault is diagnosed immediately for a corresponding uncorrected
 * error.
 */

#define	CMPND_FLT_PROP_1(erptleaf, fltleaf, n, t)			\
	engine serd.cpu.intel.fltleaf@chip/core/strand, N=n, T=t;	\
	event fault.cpu.intel.fltleaf@chip/core/strand,			\
	    engine=serd.cpu.intel.fltleaf@chip/core/strand;		\
									\
	prop fault.cpu.intel.fltleaf@chip/core/strand (0)->		\
	    ereport.cpu.intel.erptleaf@chip/core/strand;		\
									\
	prop fault.cpu.intel.fltleaf@chip/core/strand			\
	    { setserdincrement(n + 1) } (0)->				\
	    ereport.cpu.intel.erptleaf/**/_uc@chip/core/strand

#define	CMPND_FLT_PROP_2(erptleaf, fltleaf, n, t)			\
	engine serd.cpu.intel.fltleaf@chip/core/strand, N=n, T=t;	\
	event fault.cpu.intel.fltleaf@chip/core/strand, retire=0, response=0,\
	    engine=serd.cpu.intel.fltleaf@chip/core/strand;		\
									\
	prop fault.cpu.intel.fltleaf@chip/core/strand (0)->		\
	    ereport.cpu.intel.erptleaf@chip/core/strand;		\
									\
	prop fault.cpu.intel.fltleaf@chip/core/strand 			\
	    { setserdincrement(n + 1) } (0)->				\
	    ereport.cpu.intel.erptleaf/**/_uc@chip/core/strand

CMPND_FLT_PROP_1(l0cache, l0cache, 3, 72h);
CMPND_FLT_PROP_1(l1cache, l1cache, 3, 72h);
CMPND_FLT_PROP_1(l2cache, l2cache, 3, 72h);
CMPND_FLT_PROP_1(cache, cache, 12, 72h);

CMPND_FLT_PROP_1(l0dtlb, l0dtlb, 3, 72h);
CMPND_FLT_PROP_1(l1dtlb, l1dtlb, 3, 72h);
CMPND_FLT_PROP_1(l2dtlb, l2dtlb, 3, 72h);
CMPND_FLT_PROP_1(dtlb, dtlb, 12, 72h);

CMPND_FLT_PROP_1(l0itlb, l0itlb, 3, 72h);
CMPND_FLT_PROP_1(l1itlb, l1itlb, 3, 72h);
CMPND_FLT_PROP_1(l2itlb, l2itlb, 3, 72h);
CMPND_FLT_PROP_1(itlb, itlb, 12, 72h);

CMPND_FLT_PROP_1(l0tlb, l0tlb, 3, 72h);
CMPND_FLT_PROP_1(l1tlb, l1tlb, 3, 72h);
CMPND_FLT_PROP_1(l2tlb, l2tlb, 3, 72h);
CMPND_FLT_PROP_1(tlb, tlb, 12, 72h);

CMPND_FLT_PROP_1(l0dcache, l0dcache, 3, 72h);
CMPND_FLT_PROP_1(l1dcache, l1dcache, 3, 72h);
CMPND_FLT_PROP_1(l2dcache, l2dcache, 3, 72h);
CMPND_FLT_PROP_1(dcache, dcache, 12, 72h);

CMPND_FLT_PROP_1(l0icache, l0icache, 3, 72h);
CMPND_FLT_PROP_1(l1icache, l1icache, 3, 72h);
CMPND_FLT_PROP_1(l2icache, l2icache, 3, 72h);
CMPND_FLT_PROP_1(icache, icache, 12, 72h);

CMPND_FLT_PROP_2(bus_interconnect, bus_interconnect, 10, 72h);
CMPND_FLT_PROP_2(bus_interconnect_memory, bus_interconnect_memory, 10, 72h);
CMPND_FLT_PROP_2(bus_interconnect_io, bus_interconnect_io, 10, 72h);

event upset.discard@chip/core/strand;

event ereport.cpu.intel.unknown@chip {within(15s)};
prop upset.discard@chip/core/strand (0)->
    ereport.cpu.intel.external@chip/core/strand,
    ereport.cpu.intel.unknown@chip/core/strand,
    ereport.cpu.intel.unknown@chip;

/* errors detected in northbridge */


/*
 * SET_ADDR and SET_OFFSET are used to set a payload value in the fault that
 * we diagnose for page faults, to record the physical address of the faulting
 * page.
 */
#define	SET_ADDR (!payloadprop_defined("physaddr") || \
    setpayloadprop("asru-physaddr", payloadprop("physaddr")))

#define SET_OFFSET (!payloadprop_defined("offset") || \
    setpayloadprop("asru-offset", payloadprop("offset")))

#define EREPORT_BUS_ERROR						\
    ereport.cpu.intel.bus_interconnect_memory_uc@chip/core/strand,	\
    ereport.cpu.intel.bus_interconnect_uc@chip/core/strand,		\
    ereport.cpu.intel.bus_interconnect_memory@chip/core/strand,		\
    ereport.cpu.intel.bus_interconnect@chip/core/strand,		\
    ereport.cpu.intel.external@chip/core/strand

engine stat.ce_pgflt@memory-controller/dram-channel/dimm;

event ereport.cpu.intel.nb.mem_ue@motherboard/memory-controller{within(12s)};
event ereport.cpu.intel.nb.ddr2_mem_ue@
    motherboard/memory-controller{within(12s)};
event ereport.cpu.intel.nb.fbd.ma@motherboard/memory-controller{within(12s)};
event fault.memory.intel.page_ue@
    motherboard/memory-controller/dram-channel/dimm/rank,
    message=0, response=0;
event fault.memory.intel.dimm_ue@
    motherboard/memory-controller/dram-channel/dimm/rank;

prop fault.memory.intel.page_ue@
    motherboard/memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") &&
    (payloadprop_defined("physaddr") || payloadprop_defined("offset")) &&
    SET_ADDR && SET_OFFSET } (1)->
    ereport.cpu.intel.nb.mem_ue@motherboard/memory-controller,
    ereport.cpu.intel.nb.ddr2_mem_ue@motherboard/memory-controller,
    ereport.cpu.intel.nb.fbd.ma@motherboard/memory-controller;

prop fault.memory.intel.dimm_ue@
    motherboard/memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") } (1)->
    ereport.cpu.intel.nb.mem_ue@motherboard/memory-controller,
    ereport.cpu.intel.nb.ddr2_mem_ue@motherboard/memory-controller,
    ereport.cpu.intel.nb.fbd.ma@motherboard/memory-controller;

event upset.memory.intel.discard@motherboard/memory-controller{within(1s)};

prop upset.memory.intel.discard@motherboard/memory-controller (0)->
    ereport.cpu.intel.nb.mem_ue@motherboard/memory-controller,
    ereport.cpu.intel.nb.ddr2_mem_ue@motherboard/memory-controller,
    ereport.cpu.intel.nb.fbd.ma@motherboard/memory-controller;

prop upset.memory.intel.discard@motherboard/memory-controller (0)->
    EREPORT_BUS_ERROR;

#define PAGE_CE_COUNT   2
#define PAGE_CE_TIME    72h
#define DIMM_CE_COUNT   10
#define DIMM_CE_TIME    1week

#define MBDIMM motherboard/memory-controller/dram-channel/dimm
event ereport.cpu.intel.nb.mem_ce@MBDIMM/rank{within(12s)};
event ereport.cpu.intel.nb.ddr2_mem_ce@MBDIMM/rank{within(12s)};
event ereport.cpu.intel.nb.ddr2_mem_ce@
    motherboard/memory-controller{within(12s)};

engine serd.memory.intel.page_ce@MBDIMM/rank, N=PAGE_CE_COUNT, T=PAGE_CE_TIME;
event fault.memory.intel.page_ce@MBDIMM/rank, message=0, response=0,
    count=stat.ce_pgflt@MBDIMM, engine=serd.memory.intel.page_ce@MBDIMM/rank;
prop fault.memory.intel.page_ce@MBDIMM/rank
    { (payloadprop_defined("physaddr") || payloadprop_defined("offset")) &&
    SET_ADDR && SET_OFFSET } (0)->
    ereport.cpu.intel.nb.mem_ce@MBDIMM/rank,
    ereport.cpu.intel.nb.ddr2_mem_ce@MBDIMM/rank;

engine serd.memory.intel.dimm_ce@MBDIMM/rank, N=DIMM_CE_COUNT, T=DIMM_CE_TIME;
event fault.memory.intel.dimm_ce@MBDIMM/rank,
    engine=serd.memory.intel.dimm_ce@MBDIMM/rank;
prop fault.memory.intel.dimm_ce@MBDIMM/rank
    { !confprop_defined(MBDIMM, "dimm-size") &&
    count(stat.ce_pgflt@MBDIMM) > 512 } (1)->
    ereport.cpu.intel.nb.mem_ce@MBDIMM/rank,
    ereport.cpu.intel.nb.ddr2_mem_ce@MBDIMM/rank;
#define DIMM_CE(dimm_size, n, t, fault_rate) \
	prop fault.memory.intel.dimm_ce@MBDIMM/rank { \
	    confprop(MBDIMM, "dimm-size") == dimm_size && \
	    count(stat.ce_pgflt@MBDIMM) > fault_rate && \
	    setserdn(n) & setserdt(t) } (1)-> \
    	    ereport.cpu.intel.nb.mem_ce@MBDIMM/rank, \
	    ereport.cpu.intel.nb.ddr2_mem_ce@MBDIMM/rank;

DIMM_CE("8G", 8, 1week, 2000)
DIMM_CE("4G", 4, 1week, 1500)
DIMM_CE("2G", 4, 2week, 1000)
DIMM_CE("1G", 4, 4week, 500)
DIMM_CE("512M", 4, 8week, 250)
DIMM_CE("256M", 4, 16week, 125)

prop upset.memory.intel.discard@motherboard/memory-controller (0)->
    ereport.cpu.intel.nb.ddr2_mem_ce@motherboard/memory-controller;

event ereport.cpu.intel.nb.fbd.alert@rank{within(12s)};
event fault.memory.intel.fbd.alert@rank, retire=0;

prop fault.memory.intel.fbd.alert@rank (1)->
    ereport.cpu.intel.nb.fbd.alert@rank;

prop fault.memory.intel.fbd.alert@rank (0)->
    EREPORT_BUS_ERROR;

event ereport.cpu.intel.nb.fbd.crc@rank{within(12s)};
event fault.memory.intel.fbd.crc@rank, retire=0;

prop fault.memory.intel.fbd.crc@rank (1)->
    ereport.cpu.intel.nb.fbd.crc@rank;

prop fault.memory.intel.fbd.crc@rank (0)-> EREPORT_BUS_ERROR;

event ereport.cpu.intel.nb.fbd.reset_timeout@memory-controller {within(12s)};
event fault.memory.intel.fbd.reset_timeout@memory-controller, retire=0;

prop fault.memory.intel.fbd.reset_timeout@memory-controller (1)->
    ereport.cpu.intel.nb.fbd.reset_timeout@memory-controller;

prop fault.memory.intel.fbd.reset_timeout@memory-controller (0)->
    EREPORT_BUS_ERROR;

event ereport.cpu.intel.nb.fbd.ch@dram-channel {within(12s)};
engine serd.cpu.intel.nb.fbd.ch@dram-channel, N=2, T=1month;
event fault.memory.intel.fbd.ch@dram-channel, retire=0,
    engine=serd.cpu.intel.nb.fbd.ch@dram-channel;

prop fault.memory.intel.fbd.ch@dram-channel (1)->
    ereport.cpu.intel.nb.fbd.ch@dram-channel;

prop fault.memory.intel.fbd.ch@dram-channel (0)->
    EREPORT_BUS_ERROR;

event ereport.cpu.intel.nb.fbd.otf@dram-channel {within(12s)};
engine serd.cpu.intel.nb.fbd_otf@dram-channel, N=2, T=1week;
event fault.memory.intel.fbd.otf@dram-channel, retire=0, response=0,
    engine=serd.cpu.intel.nb.fbd_otf@dram-channel;

prop fault.memory.intel.fbd.otf@dram-channel (1)->
    ereport.cpu.intel.nb.fbd.otf@dram-channel;

event ereport.cpu.intel.nb.otf@motherboard {within(12s)};
event fault.cpu.intel.nb.otf@motherboard, retire=0, response=0;

prop fault.cpu.intel.nb.otf@motherboard (1)->
    ereport.cpu.intel.nb.otf@motherboard;

event ereport.cpu.intel.nb.unknown@motherboard {within(12s)};
event ereport.cpu.intel.nb.unknown@memory-controller {within(12s)};
event ereport.cpu.intel.nb.unknown@memory-controller/dram-channel {within(12s)};
event ereport.cpu.intel.nb.spd@memory-controller/dram-channel {within(12s)};
event ereport.cpu.intel.nb.ddr2_spd@
    memory-controller/dram-channel {within(12s)};
event upset.discard@memory-controller;

prop upset.discard@memory-controller (0)->
    ereport.cpu.intel.nb.unknown@motherboard,
    ereport.cpu.intel.nb.unknown@memory-controller,
    ereport.cpu.intel.nb.unknown@memory-controller/dram-channel,
    ereport.cpu.intel.nb.spd@memory-controller/dram-channel,
    ereport.cpu.intel.nb.ddr2_spd@memory-controller/dram-channel;

event ereport.cpu.intel.nb.mem_ds@memory-controller{within(30s)};
event ereport.cpu.intel.nb.ddr2_mem_ds@memory-controller{within(30s)};
event fault.memory.intel.fbd.mem_ds@memory-controller/dram-channel/dimm/rank,
    retire=0;

prop fault.memory.intel.fbd.mem_ds@
    memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") } (1)->
    ereport.cpu.intel.nb.mem_ds@memory-controller,
    ereport.cpu.intel.nb.ddr2_mem_ds@memory-controller;

event ereport.cpu.intel.nb.fsb@chip{within(12s)};
event fault.cpu.intel.nb.fsb@chip, retire=0;

prop fault.cpu.intel.nb.fsb@chip (1)->
    ereport.cpu.intel.nb.fsb@chip;

prop fault.cpu.intel.nb.fsb@chip (0)-> EREPORT_BUS_ERROR;

event ereport.cpu.intel.nb.ie@motherboard{within(12s)};
event fault.cpu.intel.nb.ie@motherboard, retire=0;
event upset.cpu.intel.nb.ie_ce@motherboard{within(12s)};

prop upset.cpu.intel.nb.ie_ce@motherboard
    { payloadprop("intel-error-list") == "B6" } (0)->
    ereport.cpu.intel.nb.ie@motherboard;

prop fault.cpu.intel.nb.ie@motherboard
    { payloadprop("intel-error-list") != "B6" } (1)->
    ereport.cpu.intel.nb.ie@motherboard;

prop fault.cpu.intel.nb.ie@motherboard (0)-> EREPORT_BUS_ERROR;

event ereport.cpu.intel.nb.dma@motherboard{within(12s)};
event upset.cpu.intel.nb.dma@motherboard;

prop upset.cpu.intel.nb.dma@motherboard (1)->
    ereport.cpu.intel.nb.dma@motherboard;

event ereport.cpu.intel.nb.esi@motherboard{within(12s)};
event ereport.cpu.intel.nb.pex@hostbridge{within(12s)};
event upset.cpu.intel.nb.pex@hostbridge;

prop upset.cpu.intel.nb.pex@hostbridge (1)->
    ereport.cpu.intel.nb.esi@motherboard,
    ereport.cpu.intel.nb.pex@hostbridge;

prop upset.cpu.intel.nb.pex@hostbridge (0)-> EREPORT_BUS_ERROR;

event ereport.cpu.intel.nb.unknown@rank{within(12s)};
event upset.discard@rank;

prop upset.discard@rank (1)->
    ereport.cpu.intel.nb.unknown@rank;

prop upset.discard@rank (0)-> EREPORT_BUS_ERROR;

/*
 * CPU integrated memory controller
 */

#define CONTAINS_RANK (payloadprop_contains("resource", \
    asru(chip/memory-controller/dram-channel/dimm/rank)) || \
    payloadprop_contains("resource", \
    asru(chip/memory-controller/dram-channel/dimm)))

#define	STAT_CPU_MEM_CE_PGFLTS \
    stat.ce_pgflt@chip/memory-controller/dram-channel/dimm

#define SET_RES_OFFSET \
    (!payloadprop_defined("resource[0].hc-specific.offset") || \
    setpayloadprop("asru-offset", \
    payloadprop("resource[0].hc-specific.offset")))

engine STAT_CPU_MEM_CE_PGFLTS;

event ereport.cpu.intel.quickpath.mem_ue@chip/memory-controller
    {within(12s)}, discard_if_config_unknown=1;

event fault.memory.intel.page_ue@
    chip/memory-controller/dram-channel/dimm/rank,
    message=0, response=0;		/* do not message individual pageflts */

prop fault.memory.intel.page_ue@
    chip/memory-controller/dram-channel/dimm/rank
    { CONTAINS_RANK && (payloadprop_defined("physaddr") ||
    payloadprop_defined("resource[0].hc-specific.offset")) &&
    SET_ADDR && SET_RES_OFFSET } (0)->
    ereport.cpu.intel.quickpath.mem_ue@chip/memory-controller;

#define	CHIPDIMM chip/memory-controller/dram-channel/dimm

event fault.memory.intel.dimm_ue@CHIPDIMM/rank;

event error.memory.intel.dimm_ue_ep@CHIPDIMM/rank;
event error.memory.intel.dimm_ue_ex@CHIPDIMM/rank;

prop fault.memory.intel.dimm_ue@CHIPDIMM/rank (1)->
   error.memory.intel.dimm_ue_ep@CHIPDIMM/rank,
   error.memory.intel.dimm_ue_ex@CHIPDIMM/rank;

prop error.memory.intel.dimm_ue_ep@CHIPDIMM/rank
    { CONTAINS_RANK } (1)->
    ereport.cpu.intel.quickpath.mem_ue@chip/memory-controller;

prop fault.memory.intel.dimm_ue@CHIPDIMM/rank (0)-> EREPORT_BUS_ERROR;

event ereport.cpu.intel.quickpath.mem_ce@
    chip/memory-controller {within(12s)}, discard_if_config_unknown=1;

engine serd.memory.intel.page_ce@CHIPDIMM/rank, N=PAGE_CE_COUNT, T=PAGE_CE_TIME;
event fault.memory.intel.page_ce@CHIPDIMM/rank, message=0, response=0,
    count=STAT_CPU_MEM_CE_PGFLTS,
    engine=serd.memory.intel.page_ce@CHIPDIMM/rank;
prop fault.memory.intel.page_ce@CHIPDIMM/rank
    { CONTAINS_RANK && (payloadprop_defined("physaddr") ||
    payloadprop_defined("resource[0].hc-specific.offset")) &&
    SET_ADDR && SET_RES_OFFSET } (0)->
    ereport.cpu.intel.quickpath.mem_ce@chip/memory-controller;

engine serd.memory.intel.dimm_ce@CHIPDIMM, N=PAGE_CE_COUNT, T=PAGE_CE_TIME;
event fault.memory.intel.dimm_ce@CHIPDIMM,
    engine=serd.memory.intel.dimm_ce@CHIPDIMM;
prop fault.memory.intel.dimm_ce@CHIPDIMM
    { !confprop_defined(CHIPDIMM, "dimm-size") &&
    count(STAT_CPU_MEM_CE_PGFLTS) > 512 } (0)->
    ereport.cpu.intel.quickpath.mem_ce@chip/memory-controller;

#define	CPU_MEM_DIMM_CE(dimm_size, n, t, fault_rate) \
	prop fault.memory.intel.dimm_ce@CHIPDIMM { \
	    confprop(CHIPDIMM, "dimm-size") == dimm_size && \
	    count(STAT_CPU_MEM_CE_PGFLTS) > fault_rate && \
	    setserdn(n) & setserdt(t) } (0)-> \
	    ereport.cpu.intel.quickpath.mem_ce@ \
	    chip/memory-controller;

CPU_MEM_DIMM_CE("16G", 16, 1week, 2000)
CPU_MEM_DIMM_CE("8G", 8, 1week, 2000)
CPU_MEM_DIMM_CE("4G", 4, 1week, 1500)
CPU_MEM_DIMM_CE("2G", 4, 2week, 1000)
CPU_MEM_DIMM_CE("1G", 4, 4week, 500)
CPU_MEM_DIMM_CE("512M", 4, 8week, 250)

event ereport.cpu.intel.quickpath.mem_unknown@chip/memory-controller
    {within(12s)}, discard_if_config_unknown=1;
event ereport.cpu.intel.quickpath.mem_unknown@
    chip/memory-controller/dram-channel {within(12s)},
    discard_if_config_unknown=1;
event ereport.cpu.intel.quickpath.mem_unknown@
    chip/memory-controller/dram-channel/dimm/rank{within(12s)};
event upset.discard@chip/memory-controller;
event upset.discard@chip/memory-controller/dram-channel/dimm/rank;

prop upset.discard@chip/memory-controller (0)->
    ereport.cpu.intel.quickpath.mem_unknown@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_unknown@
    chip/memory-controller/dram-channel;

prop upset.discard@
    chip/memory-controller/dram-channel/dimm/rank (1)->
    ereport.cpu.intel.quickpath.mem_unknown@
    chip/memory-controller/dram-channel/dimm/rank;

event ereport.cpu.intel.quickpath.mem_parity@chip/memory-controller
    {within(1s)}, discard_if_config_unknown=1;
event fault.cpu.intel.quickpath.mem_parity@chip/memory-controller;

prop fault.cpu.intel.quickpath.mem_parity@chip/memory-controller (1)->
    ereport.cpu.intel.quickpath.mem_parity@chip/memory-controller;

event ereport.cpu.intel.quickpath.mem_addr_parity@chip/memory-controller
    {within(1s)}, discard_if_config_unknown=1;
event fault.cpu.intel.quickpath.mem_addr_parity@
    chip/memory-controller;
event fault.cpu.intel.quickpath.mem_addr_parity@CHIPDIMM;
event fault.cpu.intel.quickpath.mem_addr_parity@CHIPDIMM/rank;

prop fault.cpu.intel.quickpath.mem_addr_parity@
    chip/memory-controller (1)->
    ereport.cpu.intel.quickpath.mem_addr_parity@chip/memory-controller;

prop fault.cpu.intel.quickpath.mem_addr_parity@CHIPDIMM
    { payloadprop_contains("resource", asru(CHIPDIMM)) } (1)->
    ereport.cpu.intel.quickpath.mem_addr_parity@chip/memory-controller;

prop fault.cpu.intel.quickpath.mem_addr_parity@CHIPDIMM/rank
    { payloadprop_contains("resource", asru(CHIPDIMM/rank)) } (1)->
    ereport.cpu.intel.quickpath.mem_addr_parity@chip/memory-controller;

event ereport.cpu.intel.quickpath.mem_bad_addr@chip/memory-controller
    {within(1s)}, discard_if_config_unknown=1;
event fault.cpu.intel.quickpath.mem_bad_addr@chip/memory-controller;

prop fault.cpu.intel.quickpath.mem_bad_addr@chip/memory-controller (1)->
    ereport.cpu.intel.quickpath.mem_bad_addr@chip/memory-controller;

event ereport.cpu.intel.quickpath.mem_spare@chip/memory-controller
    {within(1s)}, discard_if_config_unknown=1;
event fault.cpu.intel.quickpath.mem_spare@
    chip/memory-controller/dram-channel/dimm;

prop fault.cpu.intel.quickpath.mem_spare@
    chip/memory-controller/dram-channel/dimm (1)->
    ereport.cpu.intel.quickpath.mem_spare@chip/memory-controller;

event ereport.cpu.intel.quickpath.mem_bad_id@chip/memory-controller
    {within(1s)}, discard_if_config_unknown=1;
event fault.cpu.intel.quickpath.mem_bad_id@chip/memory-controller;

prop fault.cpu.intel.quickpath.mem_bad_id@chip/memory-controller (1)->
    ereport.cpu.intel.quickpath.mem_bad_id@chip/memory-controller;

event ereport.cpu.intel.quickpath.mem_redundant@chip/memory-controller
    {within(1s)}, discard_if_config_unknown=1;
engine serd.cpu.intel.quickpath.mem_redundant@CHIPDIMM, N=2, T=72h;
event fault.cpu.intel.quickpath.mem_redundant@CHIPDIMM,
    engine=serd.cpu.intel.quickpath.mem_redundant@CHIPDIMM;

event error.cpu.intel.quickpath.mem_redundant@CHIPDIMM/rank;

prop fault.cpu.intel.quickpath.mem_redundant@CHIPDIMM (1)->
    error.cpu.intel.quickpath.mem_redundant@CHIPDIMM/rank<>;
prop error.cpu.intel.quickpath.mem_redundant@CHIPDIMM/rank
    { CONTAINS_RANK } (1)->
    ereport.cpu.intel.quickpath.mem_redundant@
    chip/memory-controller;

#define	STATUS_UC	(payloadprop("error_uncorrected") == 1)
event ereport.cpu.intel.quickpath.interconnect@chip
    {within(1s)};
event upset.cpu.intel.quickpath.interconnect@chip;
/* Diagnose corrected events to upsets */
prop upset.cpu.intel.quickpath.interconnect@chip
    { !STATUS_UC } (1)->
    ereport.cpu.intel.quickpath.interconnect@chip;

engine serd.cpu.intel.quickpath.interconnect@chip,
	N=3, T=72h;
event fault.cpu.intel.quickpath.interconnect@chip,
    engine=serd.cpu.intel.quickpath.interconnect@chip;

/* Diagnose uncorrected events to faults */
prop fault.cpu.intel.quickpath.interconnect@chip
    { STATUS_UC } (0)->
    ereport.cpu.intel.quickpath.interconnect@chip;


/*
 * Nehalem EX specific rules
 */
/* MBox errors */
#define EX_MEM_EVENT(leafclass, t) \
	event ereport.cpu.intel.quickpath.leafclass@ \
        chip/memory-controller { within(t) }, discard_if_config_unknown=1

EX_MEM_EVENT(mem_lnktrns, 1s);
EX_MEM_EVENT(mem_lnkpers, 1s);
EX_MEM_EVENT(mem_sbfbdlinkerr, 1s);
EX_MEM_EVENT(mem_nbfbdlnkerr, 1s);
EX_MEM_EVENT(mem_lnkcrcvld, 1s);

engine serd.cpu.intel.quickpath.mem_link_ce@chip/memory-controller,
      N=500, T=1week;
event fault.cpu.intel.quickpath.mem_link_ce@chip/memory-controller,
      engine=serd.cpu.intel.quickpath.mem_link_ce@chip/memory-controller,
      retire=0, response=0;

prop fault.cpu.intel.quickpath.mem_link_ce@chip/memory-controller ->
    ereport.cpu.intel.quickpath.mem_lnktrns@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_lnkpers@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_sbfbdlinkerr@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_nbfbdlnkerr@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_lnkcrcvld@chip/memory-controller;

EX_MEM_EVENT(mem_lnkuncorr_uc, 1s);
EX_MEM_EVENT(mem_lnkpers_uc, 1s);
EX_MEM_EVENT(mem_sbfbdlinkerr_uc, 1s);
EX_MEM_EVENT(mem_nbfbdlnkerr_uc, 1s);
EX_MEM_EVENT(mem_lnkcrcvld_uc, 1s);

event fault.cpu.intel.quickpath.mem_link_ue@chip/memory-controller,
      retire=0;

prop fault.cpu.intel.quickpath.mem_link_ue@chip/memory-controller ->
    ereport.cpu.intel.quickpath.mem_lnkuncorr_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_lnkpers_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_sbfbdlinkerr_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_nbfbdlnkerr_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_lnkcrcvld_uc@chip/memory-controller;

EX_MEM_EVENT(mem_ptrl_fsm_err, 1s);
EX_MEM_EVENT(mem_errflw_fsm_fail, 1s);
EX_MEM_EVENT(mem_vberr, 1s);

engine serd.cpu.intel.quickpath.mem_controller_ce@chip/memory-controller,
      N=500, T=1week;
event fault.cpu.intel.quickpath.mem_controller_ce@chip/memory-controller,
      engine=serd.cpu.intel.quickpath.mem_controller_ce@chip/memory-controller,
      retire=0, response=0;

prop fault.cpu.intel.quickpath.mem_controller_ce@chip/memory-controller ->
    ereport.cpu.intel.quickpath.mem_ptrl_fsm_err@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_errflw_fsm_fail@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_vberr@chip/memory-controller;

EX_MEM_EVENT(mem_ptrl_fsm_err_uc, 1s);
EX_MEM_EVENT(mem_errflw_fsm_fail_uc, 1s);
EX_MEM_EVENT(mem_mcpar_fsmerr_uc, 1s);
EX_MEM_EVENT(mem_vberr_uc, 1s);
EX_MEM_EVENT(mem_fberr_uc, 1s);

event fault.cpu.intel.quickpath.mem_controller_ue@chip/memory-controller,
      retire=0;

prop fault.cpu.intel.quickpath.mem_controller_ue@chip/memory-controller ->
    ereport.cpu.intel.quickpath.mem_ptrl_fsm_err_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_errflw_fsm_fail_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_mcpar_fsmerr_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_vberr_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_fberr_uc@chip/memory-controller;

EX_MEM_EVENT(mem_scrubbing_uc, 1s);
event fault.cpu.intel.quickpath.mem_scrubbing@
    chip/memory-controller/dram-channel/dimm/rank,
    response=0;

prop fault.cpu.intel.quickpath.mem_scrubbing@
    chip/memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") &&
      (payloadprop_defined("physaddr") || payloadprop_defined("offset")) &&
      SET_ADDR && SET_OFFSET } (1)->
    ereport.cpu.intel.quickpath.mem_scrubbing_uc@chip/memory-controller;

EX_MEM_EVENT(mem_ecc_uc, 12s);
EX_MEM_EVENT(mem_even_parity_uc, 1s);

EX_MEM_EVENT(mem_ecc, 12s);
EX_MEM_EVENT(mem_even_parity, 1s);

event error.memory.intel.ex_dimm_ce@
    chip/memory-controller/dram-channel/dimm/rank;

prop fault.memory.intel.page_ue@
    chip/memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") &&
      (payloadprop_defined("physaddr") || payloadprop_defined("offset")) &&
      SET_ADDR && SET_OFFSET } (0)->
    ereport.cpu.intel.quickpath.mem_ecc_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_even_parity_uc@chip/memory-controller;

prop fault.memory.intel.page_ce@
    chip/memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") &&
      (payloadprop_defined("physaddr") || payloadprop_defined("offset")) &&
      SET_ADDR && SET_OFFSET } (0)->
    ereport.cpu.intel.quickpath.mem_ecc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_even_parity@chip/memory-controller;

prop error.memory.intel.dimm_ue_ex@
    chip/memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") } (1)->
    ereport.cpu.intel.quickpath.mem_ecc_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_even_parity_uc@chip/memory-controller;

prop fault.memory.intel.dimm_ce@
    chip/memory-controller/dram-channel/dimm
    { !confprop_defined(chip/memory-controller/dram-channel/dimm,
    "dimm-size") && setserdn(10) & setserdt(1week) } (0)->
    error.memory.intel.ex_dimm_ce@
     chip/memory-controller/dram-channel/dimm/rank;
prop error.memory.intel.ex_dimm_ce@
    chip/memory-controller/dram-channel/dimm/rank[rank_num]
    { payloadprop_defined("rank") && rank_num == payloadprop("rank") &&
      !confprop_defined(chip/memory-controller/dram-channel/dimm,
    "dimm-size") &&
    count(STAT_CPU_MEM_CE_PGFLTS) > 512 } (1)->
    ereport.cpu.intel.quickpath.mem_ecc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_even_parity@chip/memory-controller;

#define	EX_CPU_MEM_DIMM_CE(dimm_size, n, t, fault_rate) \
	prop fault.memory.intel.dimm_ce@ \
	    chip/memory-controller/dram-channel/dimm { \
	    confprop(chip/memory-controller/dram-channel/dimm, \
	    "dimm-size") == dimm_size && \
	    setserdn(n) & setserdt(t) } (0)-> \
	    error.memory.intel.ex_dimm_ce@ \
	    chip/memory-controller/dram-channel/dimm/rank; \
	prop error.memory.intel.ex_dimm_ce@ \
	    chip/memory-controller/dram-channel/dimm/rank[rank_num] { \
            payloadprop_defined("rank") && rank_num == payloadprop("rank") && \
	    confprop(chip/memory-controller/dram-channel/dimm, \
	    "dimm-size") == dimm_size && \
	    count(STAT_CPU_MEM_CE_PGFLTS) > fault_rate } (1)-> \
            ereport.cpu.intel.quickpath.mem_ecc@chip/memory-controller, \
            ereport.cpu.intel.quickpath.mem_even_parity@chip/memory-controller;

EX_CPU_MEM_DIMM_CE("16G", 16, 1week, 2000)
EX_CPU_MEM_DIMM_CE("8G", 8, 1week, 2000)
EX_CPU_MEM_DIMM_CE("4G", 4, 1week, 1500)
EX_CPU_MEM_DIMM_CE("2G", 4, 2week, 1000)
EX_CPU_MEM_DIMM_CE("1G", 4, 4week, 500)

event upset.memory.intel.discard@chip/memory-controller{within(1s)};

prop upset.memory.intel.discard@chip/memory-controller (0)->
    ereport.cpu.intel.quickpath.mem_scrubbing_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_ecc_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_even_parity_uc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_ecc@chip/memory-controller,
    ereport.cpu.intel.quickpath.mem_even_parity@chip/memory-controller;

EX_MEM_EVENT(mem_failover_mir, 1s);
event fault.cpu.intel.quickpath.mem_failover_mir@chip/memory-controller,
      retire=0;

prop fault.cpu.intel.quickpath.mem_failover_mir@chip/memory-controller ->
    ereport.cpu.intel.quickpath.mem_failover_mir@chip/memory-controller;

/*
 * RBox errors
 */
#define EX_EVENT(leafclass, t) \
	event ereport.cpu.intel.quickpath.leafclass@chip { within(t) }

engine serd.cpu.intel.quickpath.bus_interconnect@chip,
	N=3, T=72h;
event fault.cpu.intel.quickpath.bus_interconnect@chip,
    engine=serd.cpu.intel.quickpath.bus_interconnect@chip,
    retire=0;

EX_EVENT(bus_retry_abort, 1s);
EX_EVENT(bus_link_init_ce, 1s);
event upset.cpu.intel.quickpath.discard@chip;

prop upset.cpu.intel.quickpath.discard@chip (0)->
    ereport.cpu.intel.quickpath.bus_retry_abort@chip,
    ereport.cpu.intel.quickpath.bus_link_init_ce@chip;

EX_EVENT(bus_unknown, 1s);
EX_EVENT(bus_single_ecc, 1s);
EX_EVENT(bus_crc_flit, 1s);

prop fault.cpu.intel.quickpath.bus_interconnect@chip (0)->
    ereport.cpu.intel.quickpath.bus_unknown@chip,
    ereport.cpu.intel.quickpath.bus_single_ecc@chip,
    ereport.cpu.intel.quickpath.bus_crc_flit@chip;

EX_EVENT(bus_unknown_external, 1s);
EX_EVENT(bus_crc_flit_external, 1s);
prop upset.cpu.intel.quickpath.discard@chip (0)->
    ereport.cpu.intel.quickpath.bus_unknown_external@chip,
    ereport.cpu.intel.quickpath.bus_crc_flit_external@chip;

EX_EVENT(bus_unknown_uc, 1s);
EX_EVENT(bus_opr_poison_err, 1s);
EX_EVENT(bus_eot_parity, 1s);
EX_EVENT(bus_rta_parity, 1s);
EX_EVENT(bus_bad_sbu_route, 1s);
EX_EVENT(bus_bad_msg, 1s);
EX_EVENT(bus_bad_vn_credit, 1s);
EX_EVENT(bus_hdr_double_ecc, 1s);
EX_EVENT(bus_link_retry_err, 1s);

prop fault.cpu.intel.quickpath.bus_interconnect@chip
    { setserdincrement(4) } (0)->
    ereport.cpu.intel.quickpath.bus_unknown_uc@chip,
    ereport.cpu.intel.quickpath.bus_opr_poison_err@chip,
    ereport.cpu.intel.quickpath.bus_eot_parity@chip,
    ereport.cpu.intel.quickpath.bus_rta_parity@chip,
    ereport.cpu.intel.quickpath.bus_bad_sbu_route@chip,
    ereport.cpu.intel.quickpath.bus_bad_msg@chip,
    ereport.cpu.intel.quickpath.bus_bad_vn_credit@chip,
    ereport.cpu.intel.quickpath.bus_hdr_double_ecc@chip,
    ereport.cpu.intel.quickpath.bus_link_retry_err@chip;

EX_EVENT(bus_unknown_uc_external, 1s);
EX_EVENT(bus_opr_poison_err_external, 1s);
EX_EVENT(bus_eot_parity_external, 1s);
EX_EVENT(bus_rta_parity_external, 1s);
EX_EVENT(bus_bad_sbu_route_external, 1s);
EX_EVENT(bus_bad_msg_external, 1s);
EX_EVENT(bus_bad_vn_credit_external, 1s);
EX_EVENT(bus_hdr_double_ecc_external, 1s);
EX_EVENT(bus_link_retry_err_external, 1s);

prop upset.cpu.intel.quickpath.discard@chip (0)->
    ereport.cpu.intel.quickpath.bus_unknown_uc_external@chip,
    ereport.cpu.intel.quickpath.bus_opr_poison_err_external@chip,
    ereport.cpu.intel.quickpath.bus_eot_parity_external@chip,
    ereport.cpu.intel.quickpath.bus_rta_parity_external@chip,
    ereport.cpu.intel.quickpath.bus_bad_sbu_route_external@chip,
    ereport.cpu.intel.quickpath.bus_bad_msg_external@chip,
    ereport.cpu.intel.quickpath.bus_bad_vn_credit_external@chip,
    ereport.cpu.intel.quickpath.bus_hdr_double_ecc_external@chip,
    ereport.cpu.intel.quickpath.bus_link_retry_err_external@chip;

/*
 * CBox errors
 */
EX_EVENT(llc_ewb_uc, 1s);
event fault.cpu.intel.quickpath.llc_ewb@chip,
      retire=0, response=0;

prop fault.cpu.intel.quickpath.llc_ewb@chip
    { (payloadprop_defined("physaddr") || payloadprop_defined("offset")) &&
    SET_ADDR && SET_OFFSET } (1)->
    ereport.cpu.intel.quickpath.llc_ewb_uc@chip;

prop upset.cpu.intel.quickpath.discard@chip (0)->
    ereport.cpu.intel.quickpath.llc_ewb_uc@chip;

/*
 * SBox errors
 */
EX_EVENT(system_cache_uc, 1s);
event fault.cpu.intel.quickpath.system_cache@chip,
      retire=0, response=0;
prop fault.cpu.intel.quickpath.system_cache@chip ->
    ereport.cpu.intel.quickpath.system_cache_uc@chip;

/*
 * BBox errors
 */
EX_EVENT(home_agent_uc, 1s);
event fault.cpu.intel.quickpath.home_agent@chip,
      retire=0, response=0;
prop fault.cpu.intel.quickpath.home_agent@chip ->
    ereport.cpu.intel.quickpath.home_agent_uc@chip;

/*
 * UBox errors
 */
EX_EVENT(sys_cfg_cfa_ecc, 1s);
EX_EVENT(sys_cfg_uc, 1s);

engine serd.cpu.intel.quickpath.sys_cfg@chip,
      N=2, T=72h;
event fault.cpu.intel.quickpath.sys_cfg@chip,
      engine=serd.cpu.intel.quickpath.sys_cfg@chip,
      retire=0, response=0;

prop fault.cpu.intel.quickpath.sys_cfg@chip (0)->
    ereport.cpu.intel.quickpath.sys_cfg_cfa_ecc@chip;

prop fault.cpu.intel.quickpath.sys_cfg@chip
    { setserdincrement(3) } (0)->
    ereport.cpu.intel.quickpath.sys_cfg_uc@chip;

/*
 * Handling poison errors
 */
engine stat.has_poison@motherboard;
event fault.cpu.intel.has_poison@motherboard,
      count=stat.has_poison@motherboard[0],
      message=0, retire=0, response=0;
engine stat.discard_fatal@motherboard;
event fault.cpu.intel.discard_fatal@motherboard,
      count=stat.discard_fatal@motherboard[0],
      message=0, retire=0, response=0;

prop fault.cpu.intel.has_poison@motherboard
    { payloadprop_defined("poison") && 1 == payloadprop("poison") } (1)->
    ereport.cpu.intel.quickpath.mem_scrubbing_uc@chip<>/memory-controller<>,
    ereport.cpu.intel.quickpath.llc_ewb_uc@chip<>,
    ereport.cpu.intel.quickpath.system_cache_uc@chip<>,
    ereport.cpu.intel.quickpath.bus_opr_poison_err@chip<>,
    ereport.cpu.intel.quickpath.bus_opr_poison_err_external@chip<>;

prop fault.cpu.intel.discard_fatal@motherboard
    { count(stat.has_poison@motherboard[0]) > count(stat.discard_fatal@motherboard[0]) &&
      payloadprop_defined("bank_number") && 5 == payloadprop("bank_number") &&
      payloadprop_defined("processor_context_corrupt") &&
      1 == payloadprop("processor_context_corrupt") } (0)->
    ereport.cpu.intel.internal_unclassified@chip<>/core<>/strand<> {within(10s)};

prop fault.cpu.intel.internal@chip/core/strand
    { (count(stat.has_poison@motherboard[0]) <= count(stat.discard_fatal@motherboard[0]) ||
      !payloadprop_defined("bank_number") || 5 != payloadprop("bank_number") ||
      !payloadprop_defined("processor_context_corrupt") ||
      0 == payloadprop("processor_context_corrupt")) &&
      (payloadprop("error_uncorrected") == 1 ? setserdincrement(4) : 1) } (0)->
    ereport.cpu.intel.internal_unclassified@chip/core/strand;