# git rev-parse -q --verify 6457f42eb3f6e9552366631bd5aeb096ae5f599a^{commit} 6457f42eb3f6e9552366631bd5aeb096ae5f599a already have revision, skipping fetch # git checkout -q -f -B kisskb 6457f42eb3f6e9552366631bd5aeb096ae5f599a # git clean -qxdf # < git log -1 # commit 6457f42eb3f6e9552366631bd5aeb096ae5f599a # Author: Aneesh Kumar K.V # Date: Wed May 15 15:15:23 2019 +0530 # # powerpc/mm: Drop VM_BUG_ON in get_region_id() # # We call get_region_id() without validating the ea value. That means # with a wrong ea value we hit the BUG as below. # # kernel BUG at arch/powerpc/include/asm/book3s/64/hash.h:129! # Oops: Exception in kernel mode, sig: 5 [#1] # LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries # CPU: 0 PID: 3937 Comm: access_tests Not tainted 5.1.0 # .... # NIP [c00000000007ba20] do_slb_fault+0x70/0x320 # LR [c00000000000896c] data_access_slb_common+0x15c/0x1a0 # # Fix this by removing the VM_BUG_ON. All callers make sure the returned # region id is valid and error out otherwise. # # Fixes: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in the same 0xc range") # Reported-by: Andrew Donnellan # 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 6457f42eb3f6e9552366631bd5aeb096ae5f599a # < 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- :1388:2: warning: #warning syscall open_tree not implemented [-Wcpp] :1391:2: warning: #warning syscall move_mount not implemented [-Wcpp] :1394:2: warning: #warning syscall fsopen not implemented [-Wcpp] :1397:2: warning: #warning syscall fsconfig not implemented [-Wcpp] :1400:2: warning: #warning syscall fsmount not implemented [-Wcpp] :1403:2: warning: #warning syscall fspick not implemented [-Wcpp] In file included from /kisskb/src/include/linux/kernel.h:11:0, 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/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) /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) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbcf44c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbec18) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815960 Bytes = 5679.65 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815912 Bytes = 5679.60 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5816185 Bytes = 5679.87 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5816186 Bytes = 5679.87 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815864 Bytes = 5679.55 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815627 Bytes = 5679.32 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5816080 Bytes = 5679.77 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815161 Bytes = 5678.87 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c00314 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815882 Bytes = 5679.57 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815991 Bytes = 5679.68 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5814954 Bytes = 5678.67 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5785603 Bytes = 5650.00 KiB = 5.52 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815867 Bytes = 5679.56 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5814926 Bytes = 5678.64 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5816679 Bytes = 5680.35 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.1.0-g6457f42eb3f6 Created: Fri May 17 03:16:28 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5815162 Bytes = 5678.87 KiB = 5.55 MiB Load Address: 00c00000 Entry Point: 00c00314 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 # Build took: 0:00:49.612773