# 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 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  allyesconfig
# Added to kconfig CONFIG_PROFILE_ALL_BRANCHES=n
# Added to kconfig CONFIG_ENABLE_WARN_DEPRECATED=n
# Added to kconfig CONFIG_ENABLE_MUST_CHECK=n
# Added to kconfig CONFIG_DEBUG_INFO=n
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/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/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/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/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/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/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/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/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/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/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/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/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/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_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)
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/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/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/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/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/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/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/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/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/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/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/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"
/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/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/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/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)
WARNING: 148 bad relocations
c0000000098dde23 R_PPC64_UADDR64   .rodata+0x0000000001b21f90
c0000000098dde3e R_PPC64_UADDR64   .rodata+0x0000000001b22000
c0000000098dde59 R_PPC64_UADDR64   .rodata+0x0000000001b22010
c0000000098dde74 R_PPC64_UADDR64   .rodata+0x0000000001b22020
c0000000098dde8f R_PPC64_UADDR64   .rodata+0x0000000001b22030
c0000000098ddeaa R_PPC64_UADDR64   .rodata+0x0000000001b22040
c0000000098ddec5 R_PPC64_UADDR64   .rodata+0x0000000001b22050
c0000000098ddefb R_PPC64_UADDR64   .rodata+0x0000000001b22070
c0000000098ddf16 R_PPC64_UADDR64   .rodata+0x0000000001b22080
c0000000098ddf31 R_PPC64_UADDR64   .rodata+0x0000000001b22088
c0000000098ddf4c R_PPC64_UADDR64   .rodata+0x0000000001b22090
c0000000098ddf67 R_PPC64_UADDR64   .rodata+0x0000000001b220a0
c0000000098ddf82 R_PPC64_UADDR64   .rodata+0x0000000001b220b0
c0000000098ddf9d R_PPC64_UADDR64   .rodata+0x0000000001b220c0
c0000000098ddfd3 R_PPC64_UADDR64   .rodata+0x0000000001b220e0
c0000000098ddfee R_PPC64_UADDR64   .rodata+0x0000000001b220f0
c0000000098de009 R_PPC64_UADDR64   .rodata+0x0000000001b22100
c0000000098de024 R_PPC64_UADDR64   .rodata+0x0000000001b22110
c0000000098de03f R_PPC64_UADDR64   .rodata+0x0000000001b22120
c0000000098de05a R_PPC64_UADDR64   .rodata+0x0000000001b22130
c0000000098de075 R_PPC64_UADDR64   .rodata+0x0000000001b22140
c0000000098de0ab R_PPC64_UADDR64   .rodata+0x0000000001b22160
c0000000098de0c6 R_PPC64_UADDR64   .rodata+0x0000000001b22170
c0000000098de0e1 R_PPC64_UADDR64   .rodata+0x0000000001b22180
c0000000098de0fc R_PPC64_UADDR64   .rodata+0x0000000001b22190
c0000000098de117 R_PPC64_UADDR64   .rodata+0x0000000001b221a0
c0000000098de132 R_PPC64_UADDR64   .rodata+0x0000000001b221b0
c0000000098de14d R_PPC64_UADDR64   .rodata+0x0000000001b221c0
c0000000098de183 R_PPC64_UADDR64   .rodata+0x0000000001b221d8
c0000000098de19e R_PPC64_UADDR64   .rodata+0x0000000001b221e8
c0000000098de1b9 R_PPC64_UADDR64   .rodata+0x0000000001b221f8
c0000000098de1d4 R_PPC64_UADDR64   .rodata+0x0000000001b22208
c0000000098de1ef R_PPC64_UADDR64   .rodata+0x0000000001b22218
c0000000098de20a R_PPC64_UADDR64   .rodata+0x0000000001b22228
c0000000098de225 R_PPC64_UADDR64   .rodata+0x0000000001b22238
c0000000098de25b R_PPC64_UADDR64   .rodata+0x0000000001b22258
c0000000098de276 R_PPC64_UADDR64   .rodata+0x0000000001b22268
c0000000098de291 R_PPC64_UADDR64   .rodata+0x0000000001b22278
c0000000098de2ac R_PPC64_UADDR64   .rodata+0x0000000001b22288
c0000000098de2c7 R_PPC64_UADDR64   .rodata+0x0000000001b22298
c0000000098de2e2 R_PPC64_UADDR64   .rodata+0x0000000001b222a8
c0000000098de2fd R_PPC64_UADDR64   .rodata+0x0000000001b222b8
c0000000098de333 R_PPC64_UADDR64   .rodata+0x0000000001b222d8
c0000000098de34e R_PPC64_UADDR64   .rodata+0x0000000001b222e8
c0000000098de369 R_PPC64_UADDR64   .rodata+0x0000000001b222f8
c0000000098de384 R_PPC64_UADDR64   .rodata+0x0000000001b22308
c0000000098de39f R_PPC64_UADDR64   .rodata+0x0000000001b22318
c0000000098de3ba R_PPC64_UADDR64   .rodata+0x0000000001b22328
c0000000098de3d5 R_PPC64_UADDR64   .rodata+0x0000000001b22338
c0000000098de40b R_PPC64_UADDR64   .rodata+0x0000000001b22358
c0000000098de426 R_PPC64_UADDR64   .rodata+0x0000000001b22368
c0000000098de441 R_PPC64_UADDR64   .rodata+0x0000000001b22378
c0000000098de45c R_PPC64_UADDR64   .rodata+0x0000000001b22388
c0000000098de477 R_PPC64_UADDR64   .rodata+0x0000000001b22398
c0000000098de492 R_PPC64_UADDR64   .rodata+0x0000000001b223a8
c0000000098de4ad R_PPC64_UADDR64   .rodata+0x0000000001b223b8
c0000000098de4e3 R_PPC64_UADDR64   .rodata+0x0000000001b223d8
c0000000098de4fe R_PPC64_UADDR64   .rodata+0x0000000001b223e8
c0000000098de519 R_PPC64_UADDR64   .rodata+0x0000000001b223f8
c0000000098de534 R_PPC64_UADDR64   .rodata+0x0000000001b22408
c0000000098de54f R_PPC64_UADDR64   .rodata+0x0000000001b22418
c0000000098de56a R_PPC64_UADDR64   .rodata+0x0000000001b22428
c0000000098de585 R_PPC64_UADDR64   .rodata+0x0000000001b22438
c0000000098de5bb R_PPC64_UADDR64   .rodata+0x0000000001b22458
c0000000098de5d6 R_PPC64_UADDR64   .rodata+0x0000000001b22468
c0000000098de5f1 R_PPC64_UADDR64   .rodata+0x0000000001b22478
c0000000098de60c R_PPC64_UADDR64   .rodata+0x0000000001b22488
c0000000098de627 R_PPC64_UADDR64   .rodata+0x0000000001b22498
c0000000098de642 R_PPC64_UADDR64   .rodata+0x0000000001b224a8
c0000000098de65d R_PPC64_UADDR64   .rodata+0x0000000001b224c0
c0000000098de693 R_PPC64_UADDR64   .rodata+0x0000000001b224e0
c0000000098de6ae R_PPC64_UADDR64   .rodata+0x0000000001b224f0
c0000000098de6c9 R_PPC64_UADDR64   .rodata+0x0000000001b22500
c0000000098de6e4 R_PPC64_UADDR64   .rodata+0x0000000001b22518
c0000000098de6ff R_PPC64_UADDR64   .rodata+0x0000000001b22520
c0000000098de71a R_PPC64_UADDR64   .rodata+0x0000000001b22530
c0000000098de735 R_PPC64_UADDR64   .rodata+0x0000000001b22540
c0000000098de76b R_PPC64_UADDR64   .rodata+0x0000000001b22560
c0000000098de786 R_PPC64_UADDR64   .rodata+0x0000000001b22570
c0000000098de7a1 R_PPC64_UADDR64   .rodata+0x0000000001b22580
c0000000098de7bc R_PPC64_UADDR64   .rodata+0x0000000001b22590
c0000000098de7d7 R_PPC64_UADDR64   .rodata+0x0000000001b225a0
c0000000098de7f2 R_PPC64_UADDR64   .rodata+0x0000000001b225a8
c0000000098de80d R_PPC64_UADDR64   .rodata+0x0000000001b225b8
c0000000098de843 R_PPC64_UADDR64   .rodata+0x0000000001b225d8
c0000000098de85e R_PPC64_UADDR64   .rodata+0x0000000001b225e8
c0000000098de879 R_PPC64_UADDR64   .rodata+0x0000000001b225f8
c0000000098de894 R_PPC64_UADDR64   .rodata+0x0000000001b22608
c0000000098de8af R_PPC64_UADDR64   .rodata+0x0000000001b22618
c0000000098de8ca R_PPC64_UADDR64   .rodata+0x0000000001b22630
c0000000098de8e5 R_PPC64_UADDR64   .rodata+0x0000000001b22648
c0000000098de91b R_PPC64_UADDR64   .rodata+0x0000000001b22668
c0000000098de936 R_PPC64_UADDR64   .rodata+0x0000000001b22678
c0000000098de951 R_PPC64_UADDR64   .rodata+0x0000000001b22688
c0000000098de96c R_PPC64_UADDR64   .rodata+0x0000000001b22698
c0000000098de987 R_PPC64_UADDR64   .rodata+0x0000000001b226a8
c0000000098de9a2 R_PPC64_UADDR64   .rodata+0x0000000001b226b8
c0000000098de9bd R_PPC64_UADDR64   .rodata+0x0000000001b226c8
c0000000098de9f3 R_PPC64_UADDR64   .rodata+0x0000000001b226e8
c0000000098dea0e R_PPC64_UADDR64   .rodata+0x0000000001b226f8
c0000000098dea29 R_PPC64_UADDR64   .rodata+0x0000000001b22708
c0000000098dea44 R_PPC64_UADDR64   .rodata+0x0000000001b22718
c0000000098dea5f R_PPC64_UADDR64   .rodata+0x0000000001b22728
c0000000098dea7a R_PPC64_UADDR64   .rodata+0x0000000001b22738
c0000000098dea95 R_PPC64_UADDR64   .rodata+0x0000000001b22748
c0000000098deacb R_PPC64_UADDR64   .rodata+0x0000000001b22768
c0000000098deae6 R_PPC64_UADDR64   .rodata+0x0000000001b22778
c0000000098deb01 R_PPC64_UADDR64   .rodata+0x0000000001b22788
c0000000098deb1c R_PPC64_UADDR64   .rodata+0x0000000001b22798
c0000000098deb37 R_PPC64_UADDR64   .rodata+0x0000000001b227a8
c0000000098deb52 R_PPC64_UADDR64   .rodata+0x0000000001b227b8
c0000000098deb6d R_PPC64_UADDR64   .rodata+0x0000000001b227c8
c0000000098deba3 R_PPC64_UADDR64   .rodata+0x0000000001b227e8
c0000000098debbe R_PPC64_UADDR64   .rodata+0x0000000001b227f8
c0000000098debd9 R_PPC64_UADDR64   .rodata+0x0000000001b22808
c0000000098debf4 R_PPC64_UADDR64   .rodata+0x0000000001b22818
c0000000098dec0f R_PPC64_UADDR64   .rodata+0x0000000001b22828
c0000000098dec2a R_PPC64_UADDR64   .rodata+0x0000000001b22838
c0000000098dec45 R_PPC64_UADDR64   .rodata+0x0000000001b22848
c0000000098dec7b R_PPC64_UADDR64   .rodata+0x0000000001b22868
c0000000098dec96 R_PPC64_UADDR64   .rodata+0x0000000001b22878
c0000000098decb1 R_PPC64_UADDR64   .rodata+0x0000000001b22888
c0000000098deccc R_PPC64_UADDR64   .rodata+0x0000000001b22898
c0000000098dece7 R_PPC64_UADDR64   .rodata+0x0000000001b228a8
c0000000098ded02 R_PPC64_UADDR64   .rodata+0x0000000001b228b8
c0000000098ded1d R_PPC64_UADDR64   .rodata+0x0000000001b228c8
c0000000098ded53 R_PPC64_UADDR64   .rodata+0x0000000001b228e8
c0000000098ded6e R_PPC64_UADDR64   .rodata+0x0000000001b228f8
c0000000098ded89 R_PPC64_UADDR64   .rodata+0x0000000001b22908
c0000000098deda4 R_PPC64_UADDR64   .rodata+0x0000000001b22920
c0000000098dedbf R_PPC64_UADDR64   .rodata+0x0000000001b22930
c0000000098dedda R_PPC64_UADDR64   .rodata+0x0000000001b22940
c0000000098dedf5 R_PPC64_UADDR64   .rodata+0x0000000001b22950
c0000000098dee2b R_PPC64_UADDR64   .rodata+0x0000000001b22970
c0000000098dee46 R_PPC64_UADDR64   .rodata+0x0000000001b22980
c0000000098dee61 R_PPC64_UADDR64   .rodata+0x0000000001b22990
c00000001155ba54 R_PPC64_UADDR64   .rodata+0x00000000021b20f0
c00000001155ba5c R_PPC64_UADDR64   .rodata+0x00000000097982b8
c00000001155ba8c R_PPC64_UADDR64   .rodata+0x00000000021b20f0
c00000001155ba94 R_PPC64_UADDR64   .rodata+0x000000000979a0b8
c00000001155bac4 R_PPC64_UADDR64   .rodata+0x00000000021b2100
c00000001155bacc R_PPC64_UADDR64   .rodata+0x000000000979c1b8
c00000001155bafc R_PPC64_UADDR64   .rodata+0x00000000021b2108
c00000001155bb04 R_PPC64_UADDR64   .rodata+0x00000000097991b8
c00000001155bb34 R_PPC64_UADDR64   .rodata+0x00000000021b2110
c00000001155bb3c R_PPC64_UADDR64   .rodata+0x000000000979c938
c00000001155bb6c R_PPC64_UADDR64   .rodata+0x00000000021b2120
c00000001155bb74 R_PPC64_UADDR64   .rodata+0x000000000979c638
WARNING: You need at least binutils >= 2.19 to build a CONFIG_RELOCATABLE kernel
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5
# Build took: 0:25:50.937053