# git rev-parse -q --verify 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb^{commit} 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb already have revision, skipping fetch # git checkout -q -f -B kisskb 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb # git clean -qxdf # < git log -1 # commit 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb # Author: Aneesh Kumar K.V # Date: Wed Jan 23 11:51:38 2019 +0530 # # powerpc/radix: Fix kernel crash with mremap() # # With support for split pmd lock, we use pmd page pmd_huge_pte pointer # to store the deposited page table. In those config when we move page # tables we need to make sure we move the deposited page table to the # correct pmd page. Otherwise this can result in crash when we withdraw # of deposited page table because we can find the pmd_huge_pte NULL. # # eg: # # __split_huge_pmd+0x1070/0x1940 # __split_huge_pmd+0xe34/0x1940 (unreliable) # vma_adjust_trans_huge+0x110/0x1c0 # __vma_adjust+0x2b4/0x9b0 # __split_vma+0x1b8/0x280 # __do_munmap+0x13c/0x550 # sys_mremap+0x220/0x7e0 # system_call+0x5c/0x70 # # Fixes: 675d995297d4 ("powerpc/book3s64: Enable split pmd ptlock.") # Cc: stable@vger.kernel.org # v4.18+ # Signed-off-by: Aneesh Kumar K.V # Signed-off-by: Michael Ellerman # < /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 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb # < make -s -j 48 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 48 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)) ^ /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:334.3-21: 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/fsl/mpc8541cds.dts:334.3-21: 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 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb99638) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb88e04) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723184 Bytes = 5589.05 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723172 Bytes = 5589.04 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723400 Bytes = 5589.26 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723753 Bytes = 5589.60 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723213 Bytes = 5589.08 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723183 Bytes = 5589.05 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5722986 Bytes = 5588.85 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723199 Bytes = 5589.06 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5724562 Bytes = 5590.39 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5724484 Bytes = 5590.32 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5693012 Bytes = 5559.58 KiB = 5.43 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723199 Bytes = 5589.06 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723071 Bytes = 5588.94 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5723244 Bytes = 5589.11 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5722983 Bytes = 5588.85 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.0.0-rc1-g579b9239c1f3 Created: Fri Feb 1 06:32:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5725109 Bytes = 5590.93 KiB = 5.46 MiB Load Address: 00c00000 Entry Point: 00c002a4 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 # Build took: 0:01:43.195420