# git rev-parse -q --verify eaa567ccaf3a2a7b14ffa38af4bd09613aa1830f^{commit} eaa567ccaf3a2a7b14ffa38af4bd09613aa1830f already have revision, skipping fetch # git checkout -q -f -B kisskb eaa567ccaf3a2a7b14ffa38af4bd09613aa1830f # git clean -qxdf # < git log -1 # commit eaa567ccaf3a2a7b14ffa38af4bd09613aa1830f # Author: Hari Bathini # Date: Mon Jul 27 01:10:28 2020 +0530 # # ppc64/kexec_file: fix kexec load failure with lack of memory hole # # The kexec purgatory has to run in real mode. Only the first memory # block maybe accessible in real mode. And, unlike the case with panic # kernel, no memory is set aside for regular kexec load. Another thing # to note is, the memory for crashkernel is reserved at an offset of # 128MB. So, when crashkernel memory is reserved, the memory ranges to # load kexec segments shrink further as the generic code only looks for # memblock free memory ranges and in all likelihood only a tiny bit of # memory from 0 to 128MB would be available to load kexec segments. # # With kdump being used by default in general, kexec file load is likely # to fail almost always. This can be fixed by changing the memory hole # lookup logic for regular kexec to use the same method as kdump. This # would mean that most kexec segments will overlap with crashkernel # memory region. That should still be ok as the pages, whose destination # address isn't available while loading, are placed in an intermediate # location till a flush to the actual destination address happens during # kexec boot sequence. # # Signed-off-by: Hari Bathini # Tested-by: Pingfan Liu # Reviewed-by: Thiago Jung Bauermann # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/159579242226.5790.13933486642004084417.stgit@hbathini # < /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 eaa567ccaf3a2a7b14ffa38af4bd09613aa1830f # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_smp_defconfig # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_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-next_mpc85xx_smp_defconfig_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-next_mpc85xx_smp_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:11:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:12, 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:78:42: 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: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/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) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd5d768) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) INFO: Uncompressed kernel (size 0xd4cf64) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:28 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6512018 Bytes = 6359.39 KiB = 6.21 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:28 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541133 Bytes = 6387.83 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e00314 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:29 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6542367 Bytes = 6389.03 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:30 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541728 Bytes = 6388.41 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:30 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541086 Bytes = 6387.78 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e00314 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:30 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541559 Bytes = 6388.24 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e00314 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:30 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541511 Bytes = 6388.19 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:30 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541509 Bytes = 6388.19 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:30 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6542340 Bytes = 6389.00 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541074 Bytes = 6387.77 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541527 Bytes = 6388.21 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541549 Bytes = 6388.23 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e00314 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6542697 Bytes = 6389.35 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6541088 Bytes = 6387.78 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e00314 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6542581 Bytes = 6389.24 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Image Name: Linux-5.8.0-rc2-32172-geaa567cca Created: Wed Jul 29 01:28:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6542496 Bytes = 6389.16 KiB = 6.24 MiB Load Address: 00e00000 Entry Point: 00e002a4 Completed OK # rm -rf /kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 # Build took: 0:02:10.791531