# git rev-parse -q --verify 2483ef056f6e42f61cd266452e2841165dfe1b5c^{commit} 2483ef056f6e42f61cd266452e2841165dfe1b5c already have revision, skipping fetch # git checkout -q -f -B kisskb 2483ef056f6e42f61cd266452e2841165dfe1b5c # git clean -qxdf # < git log -1 # commit 2483ef056f6e42f61cd266452e2841165dfe1b5c # Author: Srikar Dronamraju # Date: Tue Sep 25 17:55:15 2018 +0530 # # powerpc/numa: Use associativity if VPHN hcall is successful # # Currently associativity is used to lookup node-id even if the # preceding VPHN hcall failed. However this can cause CPU to be made # part of the wrong node, (most likely to be node 0). This is because # VPHN is not enabled on KVM guests. # # With 2ea6263 ("powerpc/topology: Get topology for shared processors at # boot"), associativity is used to set to the wrong node. Hence KVM # guest topology is broken. # # For example : A 4 node KVM guest before would have reported. # # [root@localhost ~]# numactl -H # available: 4 nodes (0-3) # node 0 cpus: 0 1 2 3 # node 0 size: 1746 MB # node 0 free: 1604 MB # node 1 cpus: 4 5 6 7 # node 1 size: 2044 MB # node 1 free: 1765 MB # node 2 cpus: 8 9 10 11 # node 2 size: 2044 MB # node 2 free: 1837 MB # node 3 cpus: 12 13 14 15 # node 3 size: 2044 MB # node 3 free: 1903 MB # node distances: # node 0 1 2 3 # 0: 10 40 40 40 # 1: 40 10 40 40 # 2: 40 40 10 40 # 3: 40 40 40 10 # # Would now report: # # [root@localhost ~]# numactl -H # available: 4 nodes (0-3) # node 0 cpus: 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 # node 0 size: 1746 MB # node 0 free: 1244 MB # node 1 cpus: # node 1 size: 2044 MB # node 1 free: 2032 MB # node 2 cpus: 1 # node 2 size: 2044 MB # node 2 free: 2028 MB # node 3 cpus: # node 3 size: 2044 MB # node 3 free: 2032 MB # node distances: # node 0 1 2 3 # 0: 10 40 40 40 # 1: 40 10 40 40 # 2: 40 40 10 40 # 3: 40 40 40 10 # # Fix this by skipping associativity lookup if the VPHN hcall failed. # # Fixes: 2ea626306810 ("powerpc/topology: Get topology for shared processors at boot") # Signed-off-by: Srikar Dronamraju # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 2483ef056f6e42f61cd266452e2841165dfe1b5c # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/include/linux/kernel.h:10:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:9, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ /kisskb/src/include/linux/compiler.h:77:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ arch/powerpc/boot/mpc8555cds.dtb: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) arch/powerpc/boot/mpc8541cds.dtb: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb79a78) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb69284) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5648892 Bytes = 5516.50 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647380 Bytes = 5515.02 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647327 Bytes = 5514.97 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647412 Bytes = 5515.05 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5648229 Bytes = 5515.85 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647325 Bytes = 5514.97 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5623714 Bytes = 5491.91 KiB = 5.36 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647408 Bytes = 5515.05 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647335 Bytes = 5514.98 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647361 Bytes = 5515.00 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5648723 Bytes = 5516.33 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647628 Bytes = 5515.26 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647471 Bytes = 5515.11 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647637 Bytes = 5515.27 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5648913 Bytes = 5516.52 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.19.0-rc3-g2483ef056f6e Created: Wed Sep 26 02:24:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5647913 Bytes = 5515.54 KiB = 5.39 MiB Load Address: 00c00000 Entry Point: 00c0020c Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 # Build took: 0:00:47.167227