| Message ID | 20190526125038.8419-1-alex@ghiti.fr (mailing list archive) |
|---|---|
| Headers | show |
| Series | Hugetlbfs support for riscv | expand |
Hi Paul, Palmer, Now Ingo and Catalin have acked their part, do you consider this patch for inclusion ? Thanks, Alex On 5/26/19 8:50 AM, Alexandre Ghiti wrote: > This series is simply rebased on v5.2rc1 and I added the Reviewed-By > from Palmer for the first patch, thanks for that. > > This series introduces hugetlbfs support for both riscv 32/64. Riscv32 > is architecturally limited to huge pages of size 4MB whereas riscv64 has > 2MB/1G huge pages support. Transparent huge page support is not > implemented here, I will submit another series later. > > As stated in "The RISC-V Instruction Set Manual, Volume II: Privileged > Architecture", riscv page table entries are marked as non-leaf entries > as soon as at least one of the R/W/X bit set: > > - pmd_huge/pud_huge check if one of those bits are set, > - pte_mkhuge simply returns the same pte value and does not set any of > the R/W/X bits > > This series was validated using libhugetlbfs testsuite ported to riscv64 > without linker script support. > (https://github.com/AlexGhiti/libhugetlbfs.git, branch dev/alex/riscv). > > - libhugetlbfs testsuite on riscv64/2M: > - brk_near_huge triggers an assert in malloc.c, does not on x86. > > - libhugetlbfs testsuite on riscv64/1G: > - brk_near_huge triggers an assert in malloc.c, does not on x86. > - mmap-gettest, mmap-cow: testsuite passes the number of default free > pages as parameters and then fails for 1G which is not the default. > Otherwise succeeds when given the right number of pages. > - map_high_truncate_2 fails on x86 too: 0x60000000 is not 1G aligned > and fails at line 694 of fs/hugetlbfs/inode.c. > - heapshrink on 1G fails on x86 too, not investigated. > - counters.sh on 1G fails on x86 too: alloc_surplus_huge_page returns > NULL in case of gigantic pages. > - icache-hygiene succeeds after patch #3 of this series which lowers > the base address of mmap. > - fallocate_stress.sh on 1G never ends, on x86 too, not investigated. > > - libhugetlbfs testsuite on riscv32/4M: kernel build passes, lacks > libhugetlbfs support for 32bits. > > * Output for riscv64 2M and 1G libhugetbfs testsuite: > > zero_filesize_segment (2M: 64): > zero_filesize_segment (1024M: 64): > test_root (2M: 64): PASS > test_root (1024M: 64): PASS > meminfo_nohuge (2M: 64): PASS > meminfo_nohuge (1024M: 64): PASS > gethugepagesize (2M: 64): PASS > gethugepagesize (1024M: 64): PASS > gethugepagesizes (2M: 64): PASS > gethugepagesizes (1024M: 64): PASS > HUGETLB_VERBOSE=1 empty_mounts (2M: 64): PASS > HUGETLB_VERBOSE=1 empty_mounts (1024M: 64): PASS > HUGETLB_VERBOSE=1 large_mounts (2M: 64): PASS > HUGETLB_VERBOSE=1 large_mounts (1024M: 64): PASS > find_path (2M: 64): PASS > find_path (1024M: 64): PASS > unlinked_fd (2M: 64): PASS > unlinked_fd (1024M: 64): PASS > readback (2M: 64): PASS > readback (1024M: 64): PASS > truncate (2M: 64): PASS > truncate (1024M: 64): PASS > shared (2M: 64): PASS > shared (1024M: 64): PASS > mprotect (2M: 64): PASS > mprotect (1024M: 64): PASS > mlock (2M: 64): PASS > mlock (1024M: 64): PASS > misalign (2M: 64): PASS > misalign (1024M: 64): PASS > fallocate_basic.sh (2M: 64): PASS > fallocate_basic.sh (1024M: 64): PASS > fallocate_align.sh (2M: 64): PASS > fallocate_align.sh (1024M: 64): PASS > ptrace-write-hugepage (2M: 64): PASS > ptrace-write-hugepage (1024M: 64): PASS > icache-hygiene (2M: 64): PASS > icache-hygiene (1024M: 64): PASS > slbpacaflush (2M: 64): PASS (inconclusive) > slbpacaflush (1024M: 64): PASS (inconclusive) > straddle_4GB_static (2M: 64): PASS > straddle_4GB_static (1024M: 64): PASS > huge_at_4GB_normal_below_static (2M: 64): PASS > huge_at_4GB_normal_below_static (1024M: 64): PASS > huge_below_4GB_normal_above_static (2M: 64): PASS > huge_below_4GB_normal_above_static (1024M: 64): PASS > map_high_truncate_2 (2M: 64): PASS > map_high_truncate_2 (1024M: 64): FAIL ftruncate(): Invalid > argument > misaligned_offset (2M: 64): PASS (inconclusive) > misaligned_offset (1024M: 64): PASS (inconclusive) > truncate_above_4GB (2M: 64): PASS > truncate_above_4GB (1024M: 64): PASS > brk_near_huge (2M: 64): brk_near_huge: malloc.c:2385: sysmalloc: > Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned > long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) > old_end & (pagesize - 1)) == 0)' failed. > brk_near_huge (1024M: 64): brk_near_huge: malloc.c:2385: sysmalloc: > Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned > long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) > old_end & (pagesize - 1)) == 0)' failed. > task-size-overrun (2M: 64): PASS > task-size-overrun (1024M: 64): PASS > stack_grow_into_huge (2M: 64): PASS > stack_grow_into_huge (1024M: 64): PASS > corrupt-by-cow-opt (2M: 64): PASS > corrupt-by-cow-opt (1024M: 64): PASS > noresv-preserve-resv-page (2M: 64): PASS > noresv-preserve-resv-page (1024M: 64): PASS > noresv-regarded-as-resv (2M: 64): PASS > noresv-regarded-as-resv (1024M: 64): PASS > readahead_reserve.sh (2M: 64): PASS > readahead_reserve.sh (1024M: 64): PASS > madvise_reserve.sh (2M: 64): PASS > madvise_reserve.sh (1024M: 64): PASS > fadvise_reserve.sh (2M: 64): PASS > fadvise_reserve.sh (1024M: 64): PASS > mremap-expand-slice-collision.sh (2M: 64): PASS > mremap-expand-slice-collision.sh (1024M: 64): PASS > mremap-fixed-normal-near-huge.sh (2M: 64): PASS > mremap-fixed-normal-near-huge.sh (1024M: 64): PASS > mremap-fixed-huge-near-normal.sh (2M: 64): PASS > mremap-fixed-huge-near-normal.sh (1024M: 64): PASS > set shmmax limit to 67108864 > shm-perms (2M: 64): PASS > private (2M: 64): PASS > private (1024M: 64): PASS > fork-cow (2M: 64): PASS > fork-cow (1024M: 64): PASS > direct (2M: 64): Bad configuration: Failed to open direct-IO > file: Invalid argument > direct (1024M: 64): Bad configuration: Failed to open direct-IO > file: File exists > malloc (2M: 64): PASS > malloc (1024M: 64): PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc (2M: 64): > PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc (1024M: 64): > PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:none > HUGETLB_MORECORE=yes malloc (2M: 64): PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:none > HUGETLB_MORECORE=yes malloc (1024M: 64):PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:malloc > HUGETLB_MORECORE=yes malloc (2M: 64): PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:malloc > HUGETLB_MORECORE=yes malloc (1024M: 64): PASS > malloc_manysmall (2M: 64): PASS > malloc_manysmall (1024M: 64): PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc_manysmall (2M: > 64): PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc_manysmall (1024M: > 64): PASS > heapshrink (2M: 64): PASS > heapshrink (1024M: 64): PASS > LD_PRELOAD=libheapshrink.so heapshrink (2M: 64): PASS > LD_PRELOAD=libheapshrink.so heapshrink (1024M: 64): PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes heapshrink (2M: 64): > PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes heapshrink (1024M: 64): > PASS > LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE=yes > heapshrink (2M: 64): PASS > LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE=yes > heapshrink (1024M: 64): PASS > LD_PRELOAD=libheapshrink.so HUGETLB_MORECORE_SHRINK=yes > HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS (inconclusive) > LD_PRELOAD=libheapshrink.so HUGETLB_MORECORE_SHRINK=yes > HUGETLB_MORECORE=yes heapshrink (1024M: 64): PASS (inconclusive) > LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE_SHRINK=yes > HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS > LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE_SHRINK=yes > HUGETLB_MORECORE=yes heapshrink (1024M: 64): FAIL Heap did not > shrink > HUGETLB_VERBOSE=1 HUGETLB_MORECORE=yes heap-overflow (2M: 64): PASS > HUGETLB_VERBOSE=1 HUGETLB_MORECORE=yes heap-overflow (1024M: 64): > PASS > HUGETLB_VERBOSE=0 linkhuge_nofd (2M: 64): > HUGETLB_VERBOSE=0 linkhuge_nofd (1024M: 64): > LD_PRELOAD=libhugetlbfs.so HUGETLB_VERBOSE=0 linkhuge_nofd (2M: 64): > LD_PRELOAD=libhugetlbfs.so HUGETLB_VERBOSE=0 linkhuge_nofd (1024M: 64): > linkhuge (2M: 64): > linkhuge (1024M: 64): > LD_PRELOAD=libhugetlbfs.so linkhuge (2M: 64): > LD_PRELOAD=libhugetlbfs.so linkhuge (1024M: 64): > linkhuge_rw (2M: 64): > linkhuge_rw (1024M: 64): > HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): > HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): > HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): > HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): > HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): > HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): > HUGETLB_ELFMAP=no linkhuge_rw (2M: 64): > HUGETLB_ELFMAP=no linkhuge_rw (1024M: 64): > HUGETLB_ELFMAP=R HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): > HUGETLB_ELFMAP=R HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): > HUGETLB_ELFMAP=W HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): > HUGETLB_ELFMAP=W HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): > HUGETLB_ELFMAP=RW HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): > HUGETLB_ELFMAP=RW HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): > HUGETLB_SHARE=0 HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): > HUGETLB_SHARE=0 HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): > HUGETLB_SHARE=1 HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): > HUGETLB_SHARE=1 HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): > HUGETLB_SHARE=0 HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): > HUGETLB_SHARE=0 HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): > HUGETLB_SHARE=1 HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): > HUGETLB_SHARE=1 HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): > HUGETLB_SHARE=0 HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): > HUGETLB_SHARE=0 HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): > HUGETLB_SHARE=1 HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): > HUGETLB_SHARE=1 HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): > chunk-overcommit (2M: 64): PASS > chunk-overcommit (1024M: 64): PASS > alloc-instantiate-race shared (2M: 64): PASS > alloc-instantiate-race shared (1024M: 64): PASS > alloc-instantiate-race private (2M: 64): PASS > alloc-instantiate-race private (1024M: 64): PASS > truncate_reserve_wraparound (2M: 64): PASS > truncate_reserve_wraparound (1024M: 64): PASS > truncate_sigbus_versus_oom (2M: 64): PASS > truncate_sigbus_versus_oom (1024M: 64): PASS > get_huge_pages (2M: 64): PASS > get_huge_pages (1024M: 64): PASS > shmoverride_linked (2M: 64): PASS > HUGETLB_SHM=yes shmoverride_linked (2M: 64): PASS > shmoverride_linked_static (2M: 64): > HUGETLB_SHM=yes shmoverride_linked_static (2M: 64): > LD_PRELOAD=libhugetlbfs.so shmoverride_unlinked (2M: 64): PASS > LD_PRELOAD=libhugetlbfs.so HUGETLB_SHM=yes shmoverride_unlinked (2M: > 64): PASS > quota.sh (2M: 64): PASS > quota.sh (1024M: 64): PASS > counters.sh (2M: 64): PASS > counters.sh (1024M: 64): FAIL mmap failed: Invalid argument > mmap-gettest 10 35 (2M: 64): PASS > mmap-gettest 10 35 (1024M: 64): FAIL Failed to mmap the hugetlb file: > Cannot allocate memory > mmap-cow 34 35 (2M: 64): PASS > mmap-cow 34 35 (1024M: 64): FAIL Thread 15 (pid=514) failed > set shmmax limit to 73400320 > shm-fork 10 17 (2M: 64): PASS > set shmmax limit to 73400320 > shm-fork 10 35 (2M: 64): PASS > set shmmax limit to 73400320 > shm-getraw 35 /dev/full (2M: 64): PASS > fallocate_stress.sh (2M: 64): libgcc_s.so.1 must be installed for > pthread_cancel to work > fallocate_stress.sh (1024M: 64): > ********** TEST SUMMARY > * 2M 1024M > * 32-bit 64-bit 32-bit 64-bit > * Total testcases: 0 93 0 83 > * Skipped: 0 0 0 0 > * PASS: 0 69 0 56 > * FAIL: 0 0 0 5 > * Killed by signal: 0 1 0 2 > * Bad configuration: 0 1 0 1 > * Expected FAIL: 0 0 0 0 > * Unexpected PASS: 0 0 0 0 > * Test not present: 0 21 0 19 > * Strange test result: 0 1 0 0 > ********** > > Changes in v2: > - Merge comment fix about task size. > - Patch about mmap base address was merged separately. > - Rebased on top of linux-next where series about the capability > to free gigantic pages regardless of the configuration was merged. > - Add huge pmd sharing as suggested by Mike Kravetz. > - Gigantic page hstate is automatically created if CONTIG_ALLOC is > set, even if not explicitly asked for in command line, as suggested > by Mike. > - Replace #ifdef CONFIG_64BIT into IS_ENABLED(CONFIG_64BIT), as suggested > by Christoph Hellwig. > > Alexandre Ghiti (2): > x86, arm64: Move ARCH_WANT_HUGE_PMD_SHARE config in arch/Kconfig > riscv: Introduce huge page support for 32/64bit kernel > > arch/Kconfig | 3 +++ > arch/arm64/Kconfig | 2 +- > arch/riscv/Kconfig | 8 ++++++ > arch/riscv/include/asm/hugetlb.h | 18 +++++++++++++ > arch/riscv/include/asm/page.h | 10 ++++++++ > arch/riscv/include/asm/pgtable.h | 8 ++++-- > arch/riscv/mm/Makefile | 2 ++ > arch/riscv/mm/hugetlbpage.c | 44 ++++++++++++++++++++++++++++++++ > arch/x86/Kconfig | 4 +-- > 9 files changed, 93 insertions(+), 6 deletions(-) > create mode 100644 arch/riscv/include/asm/hugetlb.h > create mode 100644 arch/riscv/mm/hugetlbpage.c >
On 6/13/19 1:18 AM, Alex Ghiti wrote: > Hi Paul, Palmer, > > Now Ingo and Catalin have acked their part, do you consider this patch > for inclusion ? > > Thanks, > > Alex > Hi Paul, Palmer, Any thought about this patch ? Thanks, Alex > On 5/26/19 8:50 AM, Alexandre Ghiti wrote: >> This series is simply rebased on v5.2rc1 and I added the Reviewed-By >> from Palmer for the first patch, thanks for that. >> >> This series introduces hugetlbfs support for both riscv 32/64. Riscv32 >> is architecturally limited to huge pages of size 4MB whereas riscv64 has >> 2MB/1G huge pages support. Transparent huge page support is not >> implemented here, I will submit another series later. >> As stated in "The RISC-V Instruction Set Manual, Volume II: Privileged >> Architecture", riscv page table entries are marked as non-leaf entries >> as soon as at least one of the R/W/X bit set: >> - pmd_huge/pud_huge check if one of those bits are set, >> - pte_mkhuge simply returns the same pte value and does not set any of >> the R/W/X bits >> This series was validated using libhugetlbfs testsuite ported to riscv64 >> without linker script support. >> (https://github.com/AlexGhiti/libhugetlbfs.git, branch dev/alex/riscv). >> - libhugetlbfs testsuite on riscv64/2M: >> - brk_near_huge triggers an assert in malloc.c, does not on x86. >> - libhugetlbfs testsuite on riscv64/1G: >> - brk_near_huge triggers an assert in malloc.c, does not on x86. >> - mmap-gettest, mmap-cow: testsuite passes the number of default free >> pages as parameters and then fails for 1G which is not the default. >> Otherwise succeeds when given the right number of pages. >> - map_high_truncate_2 fails on x86 too: 0x60000000 is not 1G aligned >> and fails at line 694 of fs/hugetlbfs/inode.c. >> - heapshrink on 1G fails on x86 too, not investigated. >> - counters.sh on 1G fails on x86 too: alloc_surplus_huge_page returns >> NULL in case of gigantic pages. >> - icache-hygiene succeeds after patch #3 of this series which lowers >> the base address of mmap. >> - fallocate_stress.sh on 1G never ends, on x86 too, not investigated. >> - libhugetlbfs testsuite on riscv32/4M: kernel build passes, lacks >> libhugetlbfs support for 32bits. >> * Output for riscv64 2M and 1G libhugetbfs testsuite: >> zero_filesize_segment (2M: 64): >> zero_filesize_segment (1024M: 64): >> test_root (2M: 64): PASS >> test_root (1024M: 64): PASS >> meminfo_nohuge (2M: 64): PASS >> meminfo_nohuge (1024M: 64): PASS >> gethugepagesize (2M: 64): PASS >> gethugepagesize (1024M: 64): PASS >> gethugepagesizes (2M: 64): PASS >> gethugepagesizes (1024M: 64): PASS >> HUGETLB_VERBOSE=1 empty_mounts (2M: 64): PASS >> HUGETLB_VERBOSE=1 empty_mounts (1024M: 64): PASS >> HUGETLB_VERBOSE=1 large_mounts (2M: 64): PASS >> HUGETLB_VERBOSE=1 large_mounts (1024M: 64): PASS >> find_path (2M: 64): PASS >> find_path (1024M: 64): PASS >> unlinked_fd (2M: 64): PASS >> unlinked_fd (1024M: 64): PASS >> readback (2M: 64): PASS >> readback (1024M: 64): PASS >> truncate (2M: 64): PASS >> truncate (1024M: 64): PASS >> shared (2M: 64): PASS >> shared (1024M: 64): PASS >> mprotect (2M: 64): PASS >> mprotect (1024M: 64): PASS >> mlock (2M: 64): PASS >> mlock (1024M: 64): PASS >> misalign (2M: 64): PASS >> misalign (1024M: 64): PASS >> fallocate_basic.sh (2M: 64): PASS >> fallocate_basic.sh (1024M: 64): PASS >> fallocate_align.sh (2M: 64): PASS >> fallocate_align.sh (1024M: 64): PASS >> ptrace-write-hugepage (2M: 64): PASS >> ptrace-write-hugepage (1024M: 64): PASS >> icache-hygiene (2M: 64): PASS >> icache-hygiene (1024M: 64): PASS >> slbpacaflush (2M: 64): PASS (inconclusive) >> slbpacaflush (1024M: 64): PASS (inconclusive) >> straddle_4GB_static (2M: 64): PASS >> straddle_4GB_static (1024M: 64): PASS >> huge_at_4GB_normal_below_static (2M: 64): PASS >> huge_at_4GB_normal_below_static (1024M: 64): PASS >> huge_below_4GB_normal_above_static (2M: 64): PASS >> huge_below_4GB_normal_above_static (1024M: 64): PASS >> map_high_truncate_2 (2M: 64): PASS >> map_high_truncate_2 (1024M: 64): FAIL ftruncate(): Invalid >> argument >> misaligned_offset (2M: 64): PASS (inconclusive) >> misaligned_offset (1024M: 64): PASS (inconclusive) >> truncate_above_4GB (2M: 64): PASS >> truncate_above_4GB (1024M: 64): PASS >> brk_near_huge (2M: 64): brk_near_huge: malloc.c:2385: sysmalloc: >> Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned >> long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) >> old_end & (pagesize - 1)) == 0)' failed. >> brk_near_huge (1024M: 64): brk_near_huge: malloc.c:2385: sysmalloc: >> Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned >> long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) >> old_end & (pagesize - 1)) == 0)' failed. >> task-size-overrun (2M: 64): PASS >> task-size-overrun (1024M: 64): PASS >> stack_grow_into_huge (2M: 64): PASS >> stack_grow_into_huge (1024M: 64): PASS >> corrupt-by-cow-opt (2M: 64): PASS >> corrupt-by-cow-opt (1024M: 64): PASS >> noresv-preserve-resv-page (2M: 64): PASS >> noresv-preserve-resv-page (1024M: 64): PASS >> noresv-regarded-as-resv (2M: 64): PASS >> noresv-regarded-as-resv (1024M: 64): PASS >> readahead_reserve.sh (2M: 64): PASS >> readahead_reserve.sh (1024M: 64): PASS >> madvise_reserve.sh (2M: 64): PASS >> madvise_reserve.sh (1024M: 64): PASS >> fadvise_reserve.sh (2M: 64): PASS >> fadvise_reserve.sh (1024M: 64): PASS >> mremap-expand-slice-collision.sh (2M: 64): PASS >> mremap-expand-slice-collision.sh (1024M: 64): PASS >> mremap-fixed-normal-near-huge.sh (2M: 64): PASS >> mremap-fixed-normal-near-huge.sh (1024M: 64): PASS >> mremap-fixed-huge-near-normal.sh (2M: 64): PASS >> mremap-fixed-huge-near-normal.sh (1024M: 64): PASS >> set shmmax limit to 67108864 >> shm-perms (2M: 64): PASS >> private (2M: 64): PASS >> private (1024M: 64): PASS >> fork-cow (2M: 64): PASS >> fork-cow (1024M: 64): PASS >> direct (2M: 64): Bad configuration: Failed to open direct-IO >> file: Invalid argument >> direct (1024M: 64): Bad configuration: Failed to open direct-IO >> file: File exists >> malloc (2M: 64): PASS >> malloc (1024M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc (2M: 64): >> PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc (1024M: 64): >> PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:none >> HUGETLB_MORECORE=yes malloc (2M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:none >> HUGETLB_MORECORE=yes malloc (1024M: 64):PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:malloc >> HUGETLB_MORECORE=yes malloc (2M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:malloc >> HUGETLB_MORECORE=yes malloc (1024M: 64): PASS >> malloc_manysmall (2M: 64): PASS >> malloc_manysmall (1024M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc_manysmall (2M: >> 64): PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc_manysmall (1024M: >> 64): PASS >> heapshrink (2M: 64): PASS >> heapshrink (1024M: 64): PASS >> LD_PRELOAD=libheapshrink.so heapshrink (2M: 64): PASS >> LD_PRELOAD=libheapshrink.so heapshrink (1024M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes heapshrink (2M: 64): >> PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes heapshrink (1024M: 64): >> PASS >> LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE=yes >> heapshrink (2M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE=yes >> heapshrink (1024M: 64): PASS >> LD_PRELOAD=libheapshrink.so HUGETLB_MORECORE_SHRINK=yes >> HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS (inconclusive) >> LD_PRELOAD=libheapshrink.so HUGETLB_MORECORE_SHRINK=yes >> HUGETLB_MORECORE=yes heapshrink (1024M: 64): PASS (inconclusive) >> LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE_SHRINK=yes >> HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE_SHRINK=yes >> HUGETLB_MORECORE=yes heapshrink (1024M: 64): FAIL Heap did not >> shrink >> HUGETLB_VERBOSE=1 HUGETLB_MORECORE=yes heap-overflow (2M: 64): PASS >> HUGETLB_VERBOSE=1 HUGETLB_MORECORE=yes heap-overflow (1024M: 64): >> PASS >> HUGETLB_VERBOSE=0 linkhuge_nofd (2M: 64): >> HUGETLB_VERBOSE=0 linkhuge_nofd (1024M: 64): >> LD_PRELOAD=libhugetlbfs.so HUGETLB_VERBOSE=0 linkhuge_nofd (2M: 64): >> LD_PRELOAD=libhugetlbfs.so HUGETLB_VERBOSE=0 linkhuge_nofd (1024M: 64): >> linkhuge (2M: 64): >> linkhuge (1024M: 64): >> LD_PRELOAD=libhugetlbfs.so linkhuge (2M: 64): >> LD_PRELOAD=libhugetlbfs.so linkhuge (1024M: 64): >> linkhuge_rw (2M: 64): >> linkhuge_rw (1024M: 64): >> HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): >> HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): >> HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): >> HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): >> HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): >> HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): >> HUGETLB_ELFMAP=no linkhuge_rw (2M: 64): >> HUGETLB_ELFMAP=no linkhuge_rw (1024M: 64): >> HUGETLB_ELFMAP=R HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): >> HUGETLB_ELFMAP=R HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): >> HUGETLB_ELFMAP=W HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): >> HUGETLB_ELFMAP=W HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): >> HUGETLB_ELFMAP=RW HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): >> HUGETLB_ELFMAP=RW HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): >> HUGETLB_SHARE=0 HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): >> HUGETLB_SHARE=0 HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): >> HUGETLB_SHARE=1 HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): >> HUGETLB_SHARE=1 HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): >> HUGETLB_SHARE=0 HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): >> HUGETLB_SHARE=0 HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): >> HUGETLB_SHARE=1 HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): >> HUGETLB_SHARE=1 HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): >> HUGETLB_SHARE=0 HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): >> HUGETLB_SHARE=0 HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): >> HUGETLB_SHARE=1 HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): >> HUGETLB_SHARE=1 HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): >> chunk-overcommit (2M: 64): PASS >> chunk-overcommit (1024M: 64): PASS >> alloc-instantiate-race shared (2M: 64): PASS >> alloc-instantiate-race shared (1024M: 64): PASS >> alloc-instantiate-race private (2M: 64): PASS >> alloc-instantiate-race private (1024M: 64): PASS >> truncate_reserve_wraparound (2M: 64): PASS >> truncate_reserve_wraparound (1024M: 64): PASS >> truncate_sigbus_versus_oom (2M: 64): PASS >> truncate_sigbus_versus_oom (1024M: 64): PASS >> get_huge_pages (2M: 64): PASS >> get_huge_pages (1024M: 64): PASS >> shmoverride_linked (2M: 64): PASS >> HUGETLB_SHM=yes shmoverride_linked (2M: 64): PASS >> shmoverride_linked_static (2M: 64): >> HUGETLB_SHM=yes shmoverride_linked_static (2M: 64): >> LD_PRELOAD=libhugetlbfs.so shmoverride_unlinked (2M: 64): PASS >> LD_PRELOAD=libhugetlbfs.so HUGETLB_SHM=yes shmoverride_unlinked (2M: >> 64): PASS >> quota.sh (2M: 64): PASS >> quota.sh (1024M: 64): PASS >> counters.sh (2M: 64): PASS >> counters.sh (1024M: 64): FAIL mmap failed: Invalid argument >> mmap-gettest 10 35 (2M: 64): PASS >> mmap-gettest 10 35 (1024M: 64): FAIL Failed to mmap the hugetlb file: >> Cannot allocate memory >> mmap-cow 34 35 (2M: 64): PASS >> mmap-cow 34 35 (1024M: 64): FAIL Thread 15 (pid=514) failed >> set shmmax limit to 73400320 >> shm-fork 10 17 (2M: 64): PASS >> set shmmax limit to 73400320 >> shm-fork 10 35 (2M: 64): PASS >> set shmmax limit to 73400320 >> shm-getraw 35 /dev/full (2M: 64): PASS >> fallocate_stress.sh (2M: 64): libgcc_s.so.1 must be installed for >> pthread_cancel to work >> fallocate_stress.sh (1024M: 64): >> ********** TEST SUMMARY >> * 2M 1024M >> * 32-bit 64-bit 32-bit 64-bit >> * Total testcases: 0 93 0 83 >> * Skipped: 0 0 0 0 >> * PASS: 0 69 0 56 >> * FAIL: 0 0 0 5 >> * Killed by signal: 0 1 0 2 >> * Bad configuration: 0 1 0 1 >> * Expected FAIL: 0 0 0 0 >> * Unexpected PASS: 0 0 0 0 >> * Test not present: 0 21 0 19 >> * Strange test result: 0 1 0 0 >> ********** >> Changes in v2: >> - Merge comment fix about task size. >> - Patch about mmap base address was merged separately. >> - Rebased on top of linux-next where series about the capability >> to free gigantic pages regardless of the configuration was merged. >> - Add huge pmd sharing as suggested by Mike Kravetz. >> - Gigantic page hstate is automatically created if CONTIG_ALLOC is >> set, even if not explicitly asked for in command line, as suggested >> by Mike. >> - Replace #ifdef CONFIG_64BIT into IS_ENABLED(CONFIG_64BIT), as >> suggested >> by Christoph Hellwig. >> >> Alexandre Ghiti (2): >> x86, arm64: Move ARCH_WANT_HUGE_PMD_SHARE config in arch/Kconfig >> riscv: Introduce huge page support for 32/64bit kernel >> >> arch/Kconfig | 3 +++ >> arch/arm64/Kconfig | 2 +- >> arch/riscv/Kconfig | 8 ++++++ >> arch/riscv/include/asm/hugetlb.h | 18 +++++++++++++ >> arch/riscv/include/asm/page.h | 10 ++++++++ >> arch/riscv/include/asm/pgtable.h | 8 ++++-- >> arch/riscv/mm/Makefile | 2 ++ >> arch/riscv/mm/hugetlbpage.c | 44 ++++++++++++++++++++++++++++++++ >> arch/x86/Kconfig | 4 +-- >> 9 files changed, 93 insertions(+), 6 deletions(-) >> create mode 100644 arch/riscv/include/asm/hugetlb.h >> create mode 100644 arch/riscv/mm/hugetlbpage.c >>
This series is simply rebased on v5.2rc1 and I added the Reviewed-By from Palmer for the first patch, thanks for that. This series introduces hugetlbfs support for both riscv 32/64. Riscv32 is architecturally limited to huge pages of size 4MB whereas riscv64 has 2MB/1G huge pages support. Transparent huge page support is not implemented here, I will submit another series later. As stated in "The RISC-V Instruction Set Manual, Volume II: Privileged Architecture", riscv page table entries are marked as non-leaf entries as soon as at least one of the R/W/X bit set: - pmd_huge/pud_huge check if one of those bits are set, - pte_mkhuge simply returns the same pte value and does not set any of the R/W/X bits This series was validated using libhugetlbfs testsuite ported to riscv64 without linker script support. (https://github.com/AlexGhiti/libhugetlbfs.git, branch dev/alex/riscv). - libhugetlbfs testsuite on riscv64/2M: - brk_near_huge triggers an assert in malloc.c, does not on x86. - libhugetlbfs testsuite on riscv64/1G: - brk_near_huge triggers an assert in malloc.c, does not on x86. - mmap-gettest, mmap-cow: testsuite passes the number of default free pages as parameters and then fails for 1G which is not the default. Otherwise succeeds when given the right number of pages. - map_high_truncate_2 fails on x86 too: 0x60000000 is not 1G aligned and fails at line 694 of fs/hugetlbfs/inode.c. - heapshrink on 1G fails on x86 too, not investigated. - counters.sh on 1G fails on x86 too: alloc_surplus_huge_page returns NULL in case of gigantic pages. - icache-hygiene succeeds after patch #3 of this series which lowers the base address of mmap. - fallocate_stress.sh on 1G never ends, on x86 too, not investigated. - libhugetlbfs testsuite on riscv32/4M: kernel build passes, lacks libhugetlbfs support for 32bits. * Output for riscv64 2M and 1G libhugetbfs testsuite: zero_filesize_segment (2M: 64): zero_filesize_segment (1024M: 64): test_root (2M: 64): PASS test_root (1024M: 64): PASS meminfo_nohuge (2M: 64): PASS meminfo_nohuge (1024M: 64): PASS gethugepagesize (2M: 64): PASS gethugepagesize (1024M: 64): PASS gethugepagesizes (2M: 64): PASS gethugepagesizes (1024M: 64): PASS HUGETLB_VERBOSE=1 empty_mounts (2M: 64): PASS HUGETLB_VERBOSE=1 empty_mounts (1024M: 64): PASS HUGETLB_VERBOSE=1 large_mounts (2M: 64): PASS HUGETLB_VERBOSE=1 large_mounts (1024M: 64): PASS find_path (2M: 64): PASS find_path (1024M: 64): PASS unlinked_fd (2M: 64): PASS unlinked_fd (1024M: 64): PASS readback (2M: 64): PASS readback (1024M: 64): PASS truncate (2M: 64): PASS truncate (1024M: 64): PASS shared (2M: 64): PASS shared (1024M: 64): PASS mprotect (2M: 64): PASS mprotect (1024M: 64): PASS mlock (2M: 64): PASS mlock (1024M: 64): PASS misalign (2M: 64): PASS misalign (1024M: 64): PASS fallocate_basic.sh (2M: 64): PASS fallocate_basic.sh (1024M: 64): PASS fallocate_align.sh (2M: 64): PASS fallocate_align.sh (1024M: 64): PASS ptrace-write-hugepage (2M: 64): PASS ptrace-write-hugepage (1024M: 64): PASS icache-hygiene (2M: 64): PASS icache-hygiene (1024M: 64): PASS slbpacaflush (2M: 64): PASS (inconclusive) slbpacaflush (1024M: 64): PASS (inconclusive) straddle_4GB_static (2M: 64): PASS straddle_4GB_static (1024M: 64): PASS huge_at_4GB_normal_below_static (2M: 64): PASS huge_at_4GB_normal_below_static (1024M: 64): PASS huge_below_4GB_normal_above_static (2M: 64): PASS huge_below_4GB_normal_above_static (1024M: 64): PASS map_high_truncate_2 (2M: 64): PASS map_high_truncate_2 (1024M: 64): FAIL ftruncate(): Invalid argument misaligned_offset (2M: 64): PASS (inconclusive) misaligned_offset (1024M: 64): PASS (inconclusive) truncate_above_4GB (2M: 64): PASS truncate_above_4GB (1024M: 64): PASS brk_near_huge (2M: 64): brk_near_huge: malloc.c:2385: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed. brk_near_huge (1024M: 64): brk_near_huge: malloc.c:2385: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed. task-size-overrun (2M: 64): PASS task-size-overrun (1024M: 64): PASS stack_grow_into_huge (2M: 64): PASS stack_grow_into_huge (1024M: 64): PASS corrupt-by-cow-opt (2M: 64): PASS corrupt-by-cow-opt (1024M: 64): PASS noresv-preserve-resv-page (2M: 64): PASS noresv-preserve-resv-page (1024M: 64): PASS noresv-regarded-as-resv (2M: 64): PASS noresv-regarded-as-resv (1024M: 64): PASS readahead_reserve.sh (2M: 64): PASS readahead_reserve.sh (1024M: 64): PASS madvise_reserve.sh (2M: 64): PASS madvise_reserve.sh (1024M: 64): PASS fadvise_reserve.sh (2M: 64): PASS fadvise_reserve.sh (1024M: 64): PASS mremap-expand-slice-collision.sh (2M: 64): PASS mremap-expand-slice-collision.sh (1024M: 64): PASS mremap-fixed-normal-near-huge.sh (2M: 64): PASS mremap-fixed-normal-near-huge.sh (1024M: 64): PASS mremap-fixed-huge-near-normal.sh (2M: 64): PASS mremap-fixed-huge-near-normal.sh (1024M: 64): PASS set shmmax limit to 67108864 shm-perms (2M: 64): PASS private (2M: 64): PASS private (1024M: 64): PASS fork-cow (2M: 64): PASS fork-cow (1024M: 64): PASS direct (2M: 64): Bad configuration: Failed to open direct-IO file: Invalid argument direct (1024M: 64): Bad configuration: Failed to open direct-IO file: File exists malloc (2M: 64): PASS malloc (1024M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc (1024M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:none HUGETLB_MORECORE=yes malloc (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:none HUGETLB_MORECORE=yes malloc (1024M: 64):PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:malloc HUGETLB_MORECORE=yes malloc (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:malloc HUGETLB_MORECORE=yes malloc (1024M: 64): PASS malloc_manysmall (2M: 64): PASS malloc_manysmall (1024M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc_manysmall (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc_manysmall (1024M: 64): PASS heapshrink (2M: 64): PASS heapshrink (1024M: 64): PASS LD_PRELOAD=libheapshrink.so heapshrink (2M: 64): PASS LD_PRELOAD=libheapshrink.so heapshrink (1024M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes heapshrink (1024M: 64): PASS LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE=yes heapshrink (1024M: 64): PASS LD_PRELOAD=libheapshrink.so HUGETLB_MORECORE_SHRINK=yes HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS (inconclusive) LD_PRELOAD=libheapshrink.so HUGETLB_MORECORE_SHRINK=yes HUGETLB_MORECORE=yes heapshrink (1024M: 64): PASS (inconclusive) LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE_SHRINK=yes HUGETLB_MORECORE=yes heapshrink (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE_SHRINK=yes HUGETLB_MORECORE=yes heapshrink (1024M: 64): FAIL Heap did not shrink HUGETLB_VERBOSE=1 HUGETLB_MORECORE=yes heap-overflow (2M: 64): PASS HUGETLB_VERBOSE=1 HUGETLB_MORECORE=yes heap-overflow (1024M: 64): PASS HUGETLB_VERBOSE=0 linkhuge_nofd (2M: 64): HUGETLB_VERBOSE=0 linkhuge_nofd (1024M: 64): LD_PRELOAD=libhugetlbfs.so HUGETLB_VERBOSE=0 linkhuge_nofd (2M: 64): LD_PRELOAD=libhugetlbfs.so HUGETLB_VERBOSE=0 linkhuge_nofd (1024M: 64): linkhuge (2M: 64): linkhuge (1024M: 64): LD_PRELOAD=libhugetlbfs.so linkhuge (2M: 64): LD_PRELOAD=libhugetlbfs.so linkhuge (1024M: 64): linkhuge_rw (2M: 64): linkhuge_rw (1024M: 64): HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): HUGETLB_ELFMAP=no linkhuge_rw (2M: 64): HUGETLB_ELFMAP=no linkhuge_rw (1024M: 64): HUGETLB_ELFMAP=R HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): HUGETLB_ELFMAP=R HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): HUGETLB_ELFMAP=W HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): HUGETLB_ELFMAP=W HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): HUGETLB_ELFMAP=RW HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 64): HUGETLB_ELFMAP=RW HUGETLB_MINIMAL_COPY=no linkhuge_rw (1024M: 64): HUGETLB_SHARE=0 HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): HUGETLB_SHARE=0 HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): HUGETLB_SHARE=1 HUGETLB_ELFMAP=R linkhuge_rw (2M: 64): HUGETLB_SHARE=1 HUGETLB_ELFMAP=R linkhuge_rw (1024M: 64): HUGETLB_SHARE=0 HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): HUGETLB_SHARE=0 HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): HUGETLB_SHARE=1 HUGETLB_ELFMAP=W linkhuge_rw (2M: 64): HUGETLB_SHARE=1 HUGETLB_ELFMAP=W linkhuge_rw (1024M: 64): HUGETLB_SHARE=0 HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): HUGETLB_SHARE=0 HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): HUGETLB_SHARE=1 HUGETLB_ELFMAP=RW linkhuge_rw (2M: 64): HUGETLB_SHARE=1 HUGETLB_ELFMAP=RW linkhuge_rw (1024M: 64): chunk-overcommit (2M: 64): PASS chunk-overcommit (1024M: 64): PASS alloc-instantiate-race shared (2M: 64): PASS alloc-instantiate-race shared (1024M: 64): PASS alloc-instantiate-race private (2M: 64): PASS alloc-instantiate-race private (1024M: 64): PASS truncate_reserve_wraparound (2M: 64): PASS truncate_reserve_wraparound (1024M: 64): PASS truncate_sigbus_versus_oom (2M: 64): PASS truncate_sigbus_versus_oom (1024M: 64): PASS get_huge_pages (2M: 64): PASS get_huge_pages (1024M: 64): PASS shmoverride_linked (2M: 64): PASS HUGETLB_SHM=yes shmoverride_linked (2M: 64): PASS shmoverride_linked_static (2M: 64): HUGETLB_SHM=yes shmoverride_linked_static (2M: 64): LD_PRELOAD=libhugetlbfs.so shmoverride_unlinked (2M: 64): PASS LD_PRELOAD=libhugetlbfs.so HUGETLB_SHM=yes shmoverride_unlinked (2M: 64): PASS quota.sh (2M: 64): PASS quota.sh (1024M: 64): PASS counters.sh (2M: 64): PASS counters.sh (1024M: 64): FAIL mmap failed: Invalid argument mmap-gettest 10 35 (2M: 64): PASS mmap-gettest 10 35 (1024M: 64): FAIL Failed to mmap the hugetlb file: Cannot allocate memory mmap-cow 34 35 (2M: 64): PASS mmap-cow 34 35 (1024M: 64): FAIL Thread 15 (pid=514) failed set shmmax limit to 73400320 shm-fork 10 17 (2M: 64): PASS set shmmax limit to 73400320 shm-fork 10 35 (2M: 64): PASS set shmmax limit to 73400320 shm-getraw 35 /dev/full (2M: 64): PASS fallocate_stress.sh (2M: 64): libgcc_s.so.1 must be installed for pthread_cancel to work fallocate_stress.sh (1024M: 64): ********** TEST SUMMARY * 2M 1024M * 32-bit 64-bit 32-bit 64-bit * Total testcases: 0 93 0 83 * Skipped: 0 0 0 0 * PASS: 0 69 0 56 * FAIL: 0 0 0 5 * Killed by signal: 0 1 0 2 * Bad configuration: 0 1 0 1 * Expected FAIL: 0 0 0 0 * Unexpected PASS: 0 0 0 0 * Test not present: 0 21 0 19 * Strange test result: 0 1 0 0 ********** Changes in v2: - Merge comment fix about task size. - Patch about mmap base address was merged separately. - Rebased on top of linux-next where series about the capability to free gigantic pages regardless of the configuration was merged. - Add huge pmd sharing as suggested by Mike Kravetz. - Gigantic page hstate is automatically created if CONTIG_ALLOC is set, even if not explicitly asked for in command line, as suggested by Mike. - Replace #ifdef CONFIG_64BIT into IS_ENABLED(CONFIG_64BIT), as suggested by Christoph Hellwig. Alexandre Ghiti (2): x86, arm64: Move ARCH_WANT_HUGE_PMD_SHARE config in arch/Kconfig riscv: Introduce huge page support for 32/64bit kernel arch/Kconfig | 3 +++ arch/arm64/Kconfig | 2 +- arch/riscv/Kconfig | 8 ++++++ arch/riscv/include/asm/hugetlb.h | 18 +++++++++++++ arch/riscv/include/asm/page.h | 10 ++++++++ arch/riscv/include/asm/pgtable.h | 8 ++++-- arch/riscv/mm/Makefile | 2 ++ arch/riscv/mm/hugetlbpage.c | 44 ++++++++++++++++++++++++++++++++ arch/x86/Kconfig | 4 +-- 9 files changed, 93 insertions(+), 6 deletions(-) create mode 100644 arch/riscv/include/asm/hugetlb.h create mode 100644 arch/riscv/mm/hugetlbpage.c