# git rev-parse -q --verify 801980f6497946048709b9b09771a1729551d705^{commit}
801980f6497946048709b9b09771a1729551d705
already have revision, skipping fetch
# git checkout -q -f -B kisskb 801980f6497946048709b9b09771a1729551d705
# git clean -qxdf
# < git log -1
# commit 801980f6497946048709b9b09771a1729551d705
# Author: Michael Roth <mdroth@linux.vnet.ibm.com>
# Date:   Tue Aug 11 11:15:44 2020 -0500
# 
#     powerpc/pseries/hotplug-cpu: wait indefinitely for vCPU death
#     
#     For a power9 KVM guest with XIVE enabled, running a test loop
#     where we hotplug 384 vcpus and then unplug them, the following traces
#     can be seen (generally within a few loops) either from the unplugged
#     vcpu:
#     
#       cpu 65 (hwid 65) Ready to die...
#       Querying DEAD? cpu 66 (66) shows 2
#       list_del corruption. next->prev should be c00a000002470208, but was c00a000002470048
#       ------------[ cut here ]------------
#       kernel BUG at lib/list_debug.c:56!
#       Oops: Exception in kernel mode, sig: 5 [#1]
#       LE SMP NR_CPUS=2048 NUMA pSeries
#       Modules linked in: fuse nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 ...
#       CPU: 66 PID: 0 Comm: swapper/66 Kdump: loaded Not tainted 4.18.0-221.el8.ppc64le #1
#       NIP:  c0000000007ab50c LR: c0000000007ab508 CTR: 00000000000003ac
#       REGS: c0000009e5a17840 TRAP: 0700   Not tainted  (4.18.0-221.el8.ppc64le)
#       MSR:  800000000282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE>  CR: 28000842  XER: 20040000
#       ...
#       NIP __list_del_entry_valid+0xac/0x100
#       LR  __list_del_entry_valid+0xa8/0x100
#       Call Trace:
#         __list_del_entry_valid+0xa8/0x100 (unreliable)
#         free_pcppages_bulk+0x1f8/0x940
#         free_unref_page+0xd0/0x100
#         xive_spapr_cleanup_queue+0x148/0x1b0
#         xive_teardown_cpu+0x1bc/0x240
#         pseries_mach_cpu_die+0x78/0x2f0
#         cpu_die+0x48/0x70
#         arch_cpu_idle_dead+0x20/0x40
#         do_idle+0x2f4/0x4c0
#         cpu_startup_entry+0x38/0x40
#         start_secondary+0x7bc/0x8f0
#         start_secondary_prolog+0x10/0x14
#     
#     or on the worker thread handling the unplug:
#     
#       pseries-hotplug-cpu: Attempting to remove CPU <NULL>, drc index: 1000013a
#       Querying DEAD? cpu 314 (314) shows 2
#       BUG: Bad page state in process kworker/u768:3  pfn:95de1
#       cpu 314 (hwid 314) Ready to die...
#       page:c00a000002577840 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0
#       flags: 0x5ffffc00000000()
#       raw: 005ffffc00000000 5deadbeef0000100 5deadbeef0000200 0000000000000000
#       raw: 0000000000000000 0000000000000000 00000000ffffff7f 0000000000000000
#       page dumped because: nonzero mapcount
#       Modules linked in: kvm xt_CHECKSUM ipt_MASQUERADE xt_conntrack ...
#       CPU: 0 PID: 548 Comm: kworker/u768:3 Kdump: loaded Not tainted 4.18.0-224.el8.bz1856588.ppc64le #1
#       Workqueue: pseries hotplug workque pseries_hp_work_fn
#       Call Trace:
#         dump_stack+0xb0/0xf4 (unreliable)
#         bad_page+0x12c/0x1b0
#         free_pcppages_bulk+0x5bc/0x940
#         page_alloc_cpu_dead+0x118/0x120
#         cpuhp_invoke_callback.constprop.5+0xb8/0x760
#         _cpu_down+0x188/0x340
#         cpu_down+0x5c/0xa0
#         cpu_subsys_offline+0x24/0x40
#         device_offline+0xf0/0x130
#         dlpar_offline_cpu+0x1c4/0x2a0
#         dlpar_cpu_remove+0xb8/0x190
#         dlpar_cpu_remove_by_index+0x12c/0x150
#         dlpar_cpu+0x94/0x800
#         pseries_hp_work_fn+0x128/0x1e0
#         process_one_work+0x304/0x5d0
#         worker_thread+0xcc/0x7a0
#         kthread+0x1ac/0x1c0
#         ret_from_kernel_thread+0x5c/0x80
#     
#     The latter trace is due to the following sequence:
#     
#       page_alloc_cpu_dead
#         drain_pages
#           drain_pages_zone
#             free_pcppages_bulk
#     
#     where drain_pages() in this case is called under the assumption that
#     the unplugged cpu is no longer executing. To ensure that is the case,
#     and early call is made to __cpu_die()->pseries_cpu_die(), which runs a
#     loop that waits for the cpu to reach a halted state by polling its
#     status via query-cpu-stopped-state RTAS calls. It only polls for 25
#     iterations before giving up, however, and in the trace above this
#     results in the following being printed only .1 seconds after the
#     hotplug worker thread begins processing the unplug request:
#     
#       pseries-hotplug-cpu: Attempting to remove CPU <NULL>, drc index: 1000013a
#       Querying DEAD? cpu 314 (314) shows 2
#     
#     At that point the worker thread assumes the unplugged CPU is in some
#     unknown/dead state and procedes with the cleanup, causing the race
#     with the XIVE cleanup code executed by the unplugged CPU.
#     
#     Fix this by waiting indefinitely, but also making an effort to avoid
#     spurious lockup messages by allowing for rescheduling after polling
#     the CPU status and printing a warning if we wait for longer than 120s.
#     
#     Fixes: eac1e731b59ee ("powerpc/xive: guest exploitation of the XIVE interrupt controller")
#     Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
#     Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
#     Tested-by: Greg Kurz <groug@kaod.org>
#     Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
#     Reviewed-by: Greg Kurz <groug@kaod.org>
#     [mpe: Trim oopses in change log slightly for readability]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20200811161544.10513-1-mdroth@linux.vnet.ibm.com
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 801980f6497946048709b9b09771a1729551d705
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allmodconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# Added to kconfig CONFIG_OPTIMIZE_INLINING=n
# Added to kconfig 
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allmodconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allmodconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allmodconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/boot/dts/stxssa8555.dts:329.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0)
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/o2dnt2.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5
arch/powerpc/boot/dts/o2dnt2.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb.dts:251.22-254.4: Warning (pci_bridge): /pcie@ffe08000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:43.7-68.3
/kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:52.9-67.4: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/p2020rdb.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:135.22-137.4: Warning (pci_bridge): /pcie@f1008000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:92.7-117.3
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:102.9-116.4: Warning (pci_bridge): /pcie@f1008000/pcie@0: missing ranges for PCI bridge (or not a bridge)
/kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:139.22-141.4: Warning (pci_bridge): /pcie@f1009000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@f1009000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:30.11-32.6: Warning (i2c_bus_reg): /soc@f1000000/i2c@3000/rtc@68: missing or empty reg property
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/uc101.dts:100.15-102.4
arch/powerpc/boot/dts/uc101.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc8610_hpcd.dts:420.3-21: Warning (pci_device_bus_num): /pcie@e000a000/pcie@0:bus-range: PCI bus number 0 out of range, expected (1 - 1)
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/o2i.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5
arch/powerpc/boot/dts/o2i.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/p1020rdb-pd.dts:189.11-193.6: Warning (spi_bus_reg): /soc@ffe00000/spi@7000/slic@0: SPI bus unit address format error, expected "1"
/kisskb/src/arch/powerpc/boot/dts/fsl/p1020rdb-pd.dts:195.11-199.6: Warning (spi_bus_reg): /soc@ffe00000/spi@7000/slic@1: SPI bus unit address format error, expected "2"
/kisskb/src/arch/powerpc/boot/dts/bluestone.dts:272.13-277.7: Warning (i2c_bus_reg): /plb/opb/i2c@ef600700/sttm@4C: I2C bus unit address format error, expected "4c"
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0)
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/a3m071.dts:135.15-137.4
arch/powerpc/boot/dts/a3m071.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/o2d300.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5
arch/powerpc/boot/dts/o2d300.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/o2d.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5
arch/powerpc/boot/dts/o2d.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:397.13-406.5: Warning (spi_bus_bridge): /soc@80000000/psc@11400: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/ac14xx.dts:305.19-326.5
/kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:409.13-418.5: Warning (spi_bus_bridge): /soc@80000000/psc@11500: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/ac14xx.dts:329.19-344.5
arch/powerpc/boot/dts/ac14xx.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/gef_sbc610.dts:209.22-211.4: Warning (pci_bridge): /pcie@fef09000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@fef09000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/gef_sbc610.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/cm5200.dts:70.15-72.4
arch/powerpc/boot/dts/cm5200.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/kmcoge4.dts:196.23-198.4: Warning (pci_bridge): /pcie@ffe201000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi:87.7-113.3
/kisskb/src/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi:97.9-112.4: Warning (pci_bridge): /pcie@ffe201000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/kmcoge4.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:457.13-466.5: Warning (spi_bus_bridge): /soc@80000000/psc@11900: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/pdm360ng.dts:172.13-185.5
arch/powerpc/boot/dts/pdm360ng.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/mgcoge.dts:230.14-234.7: Warning (spi_bus_reg): /soc@f0000000/cpm@119c0/spi@11aa0/ds3106@1: SPI bus unit address format error, expected "0"
/kisskb/src/arch/powerpc/boot/dts/fsl/gef_ppc9a.dts:211.22-213.4: Warning (pci_bridge): /pcie@fef09000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@fef09000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/gef_ppc9a.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:132.23-134.4: Warning (pci_bridge): /pcie@ffe200000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:58.7-84.3
/kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:68.9-83.4: Warning (pci_bridge): /pcie@ffe200000/pcie@0: missing ranges for PCI bridge (or not a bridge)
/kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:136.23-138.4: Warning (pci_bridge): /pcie@ffe201000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:87.7-113.3
/kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:97.9-112.4: Warning (pci_bridge): /pcie@ffe201000/pcie@0: missing ranges for PCI bridge (or not a bridge)
/kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:140.23-142.4: Warning (pci_bridge): /pcie@ffe202000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:116.7-142.3
/kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:126.9-141.4: Warning (pci_bridge): /pcie@ffe202000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/oca4080.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:34.22-37.4: Warning (pci_bridge): /pci@fe0008000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:43.7-51.3
/kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:39.22-42.4: Warning (pci_bridge): /pci@fe0009000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:54.7-62.3
/kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:44.23-47.4: Warning (pci_bridge): /pcie@fe000a000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:65.7-90.3
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:74.9-89.4: Warning (pci_bridge): /pcie@fe000a000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/ppa8548.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dts:59.23-62.4: Warning (pci_bridge): /pcie@fffe08000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:100.7-126.3
/kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:109.9-125.4: Warning (pci_bridge): /pcie@fffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/xpedite5200.dts:135.11-138.6: Warning (i2c_bus_reg): /soc@ef000000/i2c@3000/dtt@48: I2C bus unit address format error, expected "34"
/kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dts:59.22-62.4: Warning (pci_bridge): /pcie@ffe08000: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:100.7-126.3
/kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:109.9-125.4: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/o3dnt.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5
arch/powerpc/boot/dts/o3dnt.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0)
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
  also defined at /kisskb/src/arch/powerpc/boot/dts/motionpro.dts:84.15-86.4
arch/powerpc/boot/dts/motionpro.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge)
arch/powerpc/boot/dts/o2mnt.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
/kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi'
  also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5
arch/powerpc/boot/dts/o2mnt.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'
/kisskb/src/arch/powerpc/boot/dts/xpedite5200_xmon.dts:139.11-142.6: Warning (i2c_bus_reg): /soc@ef000000/i2c@3000/dtt@48: I2C bus unit address format error, expected "34"
WARNING: 136 bad relocations
c0000000016158eb R_PPC64_UADDR64   .rodata+0x00000000005d1a58
c000000001615906 R_PPC64_UADDR64   .rodata+0x00000000005d1ac8
c000000001615921 R_PPC64_UADDR64   .rodata+0x00000000005d1ad8
c00000000161593c R_PPC64_UADDR64   .rodata+0x00000000005d1ae8
c000000001615957 R_PPC64_UADDR64   .rodata+0x00000000005d1af8
c000000001615972 R_PPC64_UADDR64   .rodata+0x00000000005d1b08
c00000000161598d R_PPC64_UADDR64   .rodata+0x00000000005d1b18
c0000000016159c3 R_PPC64_UADDR64   .rodata+0x00000000005d1b38
c0000000016159de R_PPC64_UADDR64   .rodata+0x00000000005d1b48
c0000000016159f9 R_PPC64_UADDR64   .rodata+0x00000000005d1b50
c000000001615a14 R_PPC64_UADDR64   .rodata+0x00000000005d1b58
c000000001615a2f R_PPC64_UADDR64   .rodata+0x00000000005d1b68
c000000001615a4a R_PPC64_UADDR64   .rodata+0x00000000005d1b78
c000000001615a65 R_PPC64_UADDR64   .rodata+0x00000000005d1b88
c000000001615a9b R_PPC64_UADDR64   .rodata+0x00000000005d1ba8
c000000001615ab6 R_PPC64_UADDR64   .rodata+0x00000000005d1bb8
c000000001615ad1 R_PPC64_UADDR64   .rodata+0x00000000005d1bc8
c000000001615aec R_PPC64_UADDR64   .rodata+0x00000000005d1bd8
c000000001615b07 R_PPC64_UADDR64   .rodata+0x00000000005d1be8
c000000001615b22 R_PPC64_UADDR64   .rodata+0x00000000005d1bf8
c000000001615b3d R_PPC64_UADDR64   .rodata+0x00000000005d1c08
c000000001615b73 R_PPC64_UADDR64   .rodata+0x00000000005d1c28
c000000001615b8e R_PPC64_UADDR64   .rodata+0x00000000005d1c38
c000000001615ba9 R_PPC64_UADDR64   .rodata+0x00000000005d1c48
c000000001615bc4 R_PPC64_UADDR64   .rodata+0x00000000005d1c58
c000000001615bdf R_PPC64_UADDR64   .rodata+0x00000000005d1c68
c000000001615bfa R_PPC64_UADDR64   .rodata+0x00000000005d1c78
c000000001615c15 R_PPC64_UADDR64   .rodata+0x00000000005d1c88
c000000001615c4b R_PPC64_UADDR64   .rodata+0x00000000005d1ca0
c000000001615c66 R_PPC64_UADDR64   .rodata+0x00000000005d1cb0
c000000001615c81 R_PPC64_UADDR64   .rodata+0x00000000005d1cc0
c000000001615c9c R_PPC64_UADDR64   .rodata+0x00000000005d1cd0
c000000001615cb7 R_PPC64_UADDR64   .rodata+0x00000000005d1ce0
c000000001615cd2 R_PPC64_UADDR64   .rodata+0x00000000005d1cf0
c000000001615ced R_PPC64_UADDR64   .rodata+0x00000000005d1d00
c000000001615d23 R_PPC64_UADDR64   .rodata+0x00000000005d1d20
c000000001615d3e R_PPC64_UADDR64   .rodata+0x00000000005d1d30
c000000001615d59 R_PPC64_UADDR64   .rodata+0x00000000005d1d40
c000000001615d74 R_PPC64_UADDR64   .rodata+0x00000000005d1d50
c000000001615d8f R_PPC64_UADDR64   .rodata+0x00000000005d1d60
c000000001615daa R_PPC64_UADDR64   .rodata+0x00000000005d1d70
c000000001615dc5 R_PPC64_UADDR64   .rodata+0x00000000005d1d80
c000000001615dfb R_PPC64_UADDR64   .rodata+0x00000000005d1da0
c000000001615e16 R_PPC64_UADDR64   .rodata+0x00000000005d1db0
c000000001615e31 R_PPC64_UADDR64   .rodata+0x00000000005d1dc0
c000000001615e4c R_PPC64_UADDR64   .rodata+0x00000000005d1dd0
c000000001615e67 R_PPC64_UADDR64   .rodata+0x00000000005d1de0
c000000001615e82 R_PPC64_UADDR64   .rodata+0x00000000005d1df0
c000000001615e9d R_PPC64_UADDR64   .rodata+0x00000000005d1e00
c000000001615ed3 R_PPC64_UADDR64   .rodata+0x00000000005d1e20
c000000001615eee R_PPC64_UADDR64   .rodata+0x00000000005d1e30
c000000001615f09 R_PPC64_UADDR64   .rodata+0x00000000005d1e40
c000000001615f24 R_PPC64_UADDR64   .rodata+0x00000000005d1e50
c000000001615f3f R_PPC64_UADDR64   .rodata+0x00000000005d1e60
c000000001615f5a R_PPC64_UADDR64   .rodata+0x00000000005d1e70
c000000001615f75 R_PPC64_UADDR64   .rodata+0x00000000005d1e80
c000000001615fab R_PPC64_UADDR64   .rodata+0x00000000005d1ea0
c000000001615fc6 R_PPC64_UADDR64   .rodata+0x00000000005d1eb0
c000000001615fe1 R_PPC64_UADDR64   .rodata+0x00000000005d1ec0
c000000001615ffc R_PPC64_UADDR64   .rodata+0x00000000005d1ed0
c000000001616017 R_PPC64_UADDR64   .rodata+0x00000000005d1ee0
c000000001616032 R_PPC64_UADDR64   .rodata+0x00000000005d1ef0
c00000000161604d R_PPC64_UADDR64   .rodata+0x00000000005d1f00
c000000001616083 R_PPC64_UADDR64   .rodata+0x00000000005d1f20
c00000000161609e R_PPC64_UADDR64   .rodata+0x00000000005d1f30
c0000000016160b9 R_PPC64_UADDR64   .rodata+0x00000000005d1f40
c0000000016160d4 R_PPC64_UADDR64   .rodata+0x00000000005d1f50
c0000000016160ef R_PPC64_UADDR64   .rodata+0x00000000005d1f60
c00000000161610a R_PPC64_UADDR64   .rodata+0x00000000005d1f70
c000000001616125 R_PPC64_UADDR64   .rodata+0x00000000005d1f88
c00000000161615b R_PPC64_UADDR64   .rodata+0x00000000005d1fa8
c000000001616176 R_PPC64_UADDR64   .rodata+0x00000000005d1fb8
c000000001616191 R_PPC64_UADDR64   .rodata+0x00000000005d1fc8
c0000000016161ac R_PPC64_UADDR64   .rodata+0x00000000005d1fe0
c0000000016161c7 R_PPC64_UADDR64   .rodata+0x00000000005d1fe8
c0000000016161e2 R_PPC64_UADDR64   .rodata+0x00000000005d1ff8
c0000000016161fd R_PPC64_UADDR64   .rodata+0x00000000005d2008
c000000001616233 R_PPC64_UADDR64   .rodata+0x00000000005d2028
c00000000161624e R_PPC64_UADDR64   .rodata+0x00000000005d2038
c000000001616269 R_PPC64_UADDR64   .rodata+0x00000000005d2048
c000000001616284 R_PPC64_UADDR64   .rodata+0x00000000005d2058
c00000000161629f R_PPC64_UADDR64   .rodata+0x00000000005d2068
c0000000016162ba R_PPC64_UADDR64   .rodata+0x00000000005d2070
c0000000016162d5 R_PPC64_UADDR64   .rodata+0x00000000005d2080
c00000000161630b R_PPC64_UADDR64   .rodata+0x00000000005d20a0
c000000001616326 R_PPC64_UADDR64   .rodata+0x00000000005d20b0
c000000001616341 R_PPC64_UADDR64   .rodata+0x00000000005d20c0
c00000000161635c R_PPC64_UADDR64   .rodata+0x00000000005d20d0
c000000001616377 R_PPC64_UADDR64   .rodata+0x00000000005d20e0
c000000001616392 R_PPC64_UADDR64   .rodata+0x00000000005d20f8
c0000000016163ad R_PPC64_UADDR64   .rodata+0x00000000005d2110
c0000000016163e3 R_PPC64_UADDR64   .rodata+0x00000000005d2130
c0000000016163fe R_PPC64_UADDR64   .rodata+0x00000000005d2140
c000000001616419 R_PPC64_UADDR64   .rodata+0x00000000005d2150
c000000001616434 R_PPC64_UADDR64   .rodata+0x00000000005d2160
c00000000161644f R_PPC64_UADDR64   .rodata+0x00000000005d2170
c00000000161646a R_PPC64_UADDR64   .rodata+0x00000000005d2180
c000000001616485 R_PPC64_UADDR64   .rodata+0x00000000005d2190
c0000000016164bb R_PPC64_UADDR64   .rodata+0x00000000005d21b0
c0000000016164d6 R_PPC64_UADDR64   .rodata+0x00000000005d21c0
c0000000016164f1 R_PPC64_UADDR64   .rodata+0x00000000005d21d0
c00000000161650c R_PPC64_UADDR64   .rodata+0x00000000005d21e0
c000000001616527 R_PPC64_UADDR64   .rodata+0x00000000005d21f0
c000000001616542 R_PPC64_UADDR64   .rodata+0x00000000005d2200
c00000000161655d R_PPC64_UADDR64   .rodata+0x00000000005d2210
c000000001616593 R_PPC64_UADDR64   .rodata+0x00000000005d2230
c0000000016165ae R_PPC64_UADDR64   .rodata+0x00000000005d2240
c0000000016165c9 R_PPC64_UADDR64   .rodata+0x00000000005d2250
c0000000016165e4 R_PPC64_UADDR64   .rodata+0x00000000005d2260
c0000000016165ff R_PPC64_UADDR64   .rodata+0x00000000005d2270
c00000000161661a R_PPC64_UADDR64   .rodata+0x00000000005d2280
c000000001616635 R_PPC64_UADDR64   .rodata+0x00000000005d2290
c00000000161666b R_PPC64_UADDR64   .rodata+0x00000000005d22b0
c000000001616686 R_PPC64_UADDR64   .rodata+0x00000000005d22c0
c0000000016166a1 R_PPC64_UADDR64   .rodata+0x00000000005d22d0
c0000000016166bc R_PPC64_UADDR64   .rodata+0x00000000005d22e0
c0000000016166d7 R_PPC64_UADDR64   .rodata+0x00000000005d22f0
c0000000016166f2 R_PPC64_UADDR64   .rodata+0x00000000005d2300
c00000000161670d R_PPC64_UADDR64   .rodata+0x00000000005d2310
c000000001616743 R_PPC64_UADDR64   .rodata+0x00000000005d2330
c00000000161675e R_PPC64_UADDR64   .rodata+0x00000000005d2340
c000000001616779 R_PPC64_UADDR64   .rodata+0x00000000005d2350
c000000001616794 R_PPC64_UADDR64   .rodata+0x00000000005d2360
c0000000016167af R_PPC64_UADDR64   .rodata+0x00000000005d2370
c0000000016167ca R_PPC64_UADDR64   .rodata+0x00000000005d2380
c0000000016167e5 R_PPC64_UADDR64   .rodata+0x00000000005d2390
c00000000161681b R_PPC64_UADDR64   .rodata+0x00000000005d23b0
c000000001616836 R_PPC64_UADDR64   .rodata+0x00000000005d23c0
c000000001616851 R_PPC64_UADDR64   .rodata+0x00000000005d23d0
c00000000161686c R_PPC64_UADDR64   .rodata+0x00000000005d23e8
c000000001616887 R_PPC64_UADDR64   .rodata+0x00000000005d23f8
c0000000016168a2 R_PPC64_UADDR64   .rodata+0x00000000005d2408
c0000000016168bd R_PPC64_UADDR64   .rodata+0x00000000005d2418
c0000000016168f3 R_PPC64_UADDR64   .rodata+0x00000000005d2438
c00000000161690e R_PPC64_UADDR64   .rodata+0x00000000005d2448
c000000001616929 R_PPC64_UADDR64   .rodata+0x00000000005d2458
WARNING: You need at least binutils >= 2.19 to build a CONFIG_RELOCATABLE kernel
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_powerpc-allmodconfig_powerpc-gcc5
# Build took: 0:18:18.766866