Buildresult: linus/32r6el_defconfig/mips-gcc8 built on Sep 24, 03:36

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	OK
Date/Time:	Sep 24, 03:36
Duration:	0:04:17.428966
Builder:	alpine2
Revision:	mm: fix build on 32-bit targets without MAX_PHYSMEM_BITS (`f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36)`
Target:	linus/32r6el_defconfig/mips-gcc8
Branch:	linus
Compiler:	mips-gcc8 (mips-linux-gcc (GCC) 8.5.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	32r6el_defconfig (download)
Log:	Download original Possible warnings (3) arch/mips/boot/dts/img/boston.dts:128.17-178.5: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dts:136.23-177.6: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0/eg20t_bridge@1,0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Full Log # git rev-parse -q --verify f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36^{commit} f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36 already have revision, skipping fetch # git checkout -q -f -B kisskb f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36 # git clean -qxdf # < git log -1 # commit f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Mon Sep 23 08:58:31 2024 -0700 # # mm: fix build on 32-bit targets without MAX_PHYSMEM_BITS # # The merge resolution to deal with the conflict between commits # ea72ce5da228 ("x86/kaslr: Expose and use the end of the physical memory # address space") and 99185c10d5d9 ("resource, kunit: add test case for # region_intersects()") ended up being broken in configurations didn't # define a MAX_PHYSMEM_BITS and that had a 32-bit 'phys_addr_t'. # # The fallback to using all bits set (ie "(-1ULL)") ended up causing a # build error: # # kernel/resource.c: In function ‘gfr_start’: # include/linux/minmax.h:93:30: error: conversion from ‘long long unsigned int’ to ‘resource_size_t’ {aka ‘unsigned int’} changes value from ‘18446744073709551615’ to ‘4294967295’ [-Werror=overflow] # # this was reported by Geert for m68k, but he points out that it happens # on other 32-bit architectures too, eg mips, xtensa, parisc, and powerpc. # # Limiting 'PHYSMEM_END' to a 'phys_addr_t' (which is the same as # 'resource_size_t') fixes the build, but Geert points out that it will # then cause a silent overflow in mm/sparse.c: # # unsigned long max_sparsemem_pfn = (PHYSMEM_END + 1) >> PAGE_SHIFT; # # so we actually do want PHYSMEM_END to be defined a 64-bit type - just # not all ones, and not larger than 'phys_addr_t'. # # The proper fix is probably to not have some kind of default fallback at # all, but just make sure every architecture has a valid MAX_PHYSMEM_BITS. # But in the meantime, this just applies the rule that PHYSMEM_END is the # largest value that fits in a 'phys_addr_t', but does not have the high # bit set in 64 bits. # # Ugly, ugly. # # Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> # Cc: Andrew Morton <akpm@linux-foundation.org> # Cc: Huang Ying <ying.huang@intel.com> # Cc: Thomas Gleixner <tglx@linutronix.de> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36 # make -s -j 160 ARCH=mips O=/kisskb/build/linus_32r6el_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- 32r6el_defconfig Using /kisskb/src/arch/mips/configs/generic_defconfig as base Merging /kisskb/src/arch/mips/configs/generic/32r6.config Merging /kisskb/src/arch/mips/configs/generic/el.config Merging /kisskb/src/arch/mips/configs/generic/board-boston.config Merging /kisskb/src/arch/mips/configs/generic/board-litex.config Merging /kisskb/src/arch/mips/configs/generic/board-marduk.config Merging /kisskb/src/arch/mips/configs/generic/board-ranchu.config Merging /kisskb/src/arch/mips/configs/generic/board-sead-3.config Merging /kisskb/src/arch/mips/configs/generic/board-virt.config # < make -s -j 160 ARCH=mips O=/kisskb/build/linus_32r6el_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 160 ARCH=mips O=/kisskb/build/linus_32r6el_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- olddefconfig # make -s -j 160 ARCH=mips O=/kisskb/build/linus_32r6el_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/boot/dts/img/boston.dts:128.17-178.5: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0: '#interrupt-cells' found, but node is not an interrupt provider /kisskb/src/arch/mips/boot/dts/img/boston.dts:136.23-177.6: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0/eg20t_bridge@1,0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Completed OK # rm -rf /kisskb/build/linus_32r6el_defconfig_mips-gcc8 # Build took: 0:04:17.428966

© Michael Ellerman 2006-2018.