Messages in this thread Patch in this message | | | Subject | Re: arm32: panic in move_freepages (Was [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid()) | From | Kefeng Wang <> | Date | Thu, 29 Apr 2021 18:22:55 +0800 |
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On 2021/4/29 14:57, Mike Rapoport wrote:
>>> Do you use SPARSMEM? If yes, what is your section size? >>> What is the value if CONFIG_FORCE_MAX_ZONEORDER in your configuration? >> Yes, >> >> CONFIG_SPARSEMEM=y >> >> CONFIG_SPARSEMEM_STATIC=y >> >> CONFIG_FORCE_MAX_ZONEORDER = 11 >> >> CONFIG_PAGE_OFFSET=0xC0000000 >> CONFIG_HAVE_ARCH_PFN_VALID=y >> CONFIG_HIGHMEM=y >> #define SECTION_SIZE_BITS 26 >> #define MAX_PHYSADDR_BITS 32 >> #define MAX_PHYSMEM_BITS 32
With the patch, the addr is aligned, but the panic still occurred,
new free memory log is below,
memblock_free: [0xaf430000-0xaf44ffff] mem_init+0x158/0x23c
memblock_free: [0xaf510000-0xaf53ffff] mem_init+0x158/0x23c memblock_free: [0xaf560000-0xaf57ffff] mem_init+0x158/0x23c memblock_free: [0xafd98000-0xafdc7fff] mem_init+0x158/0x23c memblock_free: [0xafdd8000-0xafdfffff] mem_init+0x158/0x23c memblock_free: [0xafe18000-0xafe7ffff] mem_init+0x158/0x23c memblock_free: [0xafee0000-0xafefffff] mem_init+0x158/0x23c __free_memory_core, range: 0x80a03000 - 0x80a04000, pfn: 80a03 - 80a04 __free_memory_core, range: 0x80a08000 - 0x80b00000, pfn: 80a08 - 80b00 __free_memory_core, range: 0x812e8058 - 0x83000000, pfn: 812e9 - 83000 __free_memory_core, range: 0x85000000 - 0x85600000, pfn: 85000 - 85600 __free_memory_core, range: 0x86a00000 - 0x87e00000, pfn: 86a00 - 87e00 __free_memory_core, range: 0x8bd00000 - 0x8c500000, pfn: 8bd00 - 8c500 __free_memory_core, range: 0x8e300000 - 0x8ed00000, pfn: 8e300 - 8ed00 __free_memory_core, range: 0x90d00000 - 0xaf2c0000, pfn: 90d00 - af2c0 __free_memory_core, range: 0xaf430000 - 0xaf450000, pfn: af430 - af450 __free_memory_core, range: 0xaf510000 - 0xaf540000, pfn: af510 - af540 __free_memory_core, range: 0xaf560000 - 0xaf580000, pfn: af560 - af580 __free_memory_core, range: 0xafd98000 - 0xafdc8000, pfn: afd98 - afdc8 __free_memory_core, range: 0xafdd8000 - 0xafe00000, pfn: afdd8 - afe00 __free_memory_core, range: 0xafe18000 - 0xafe80000, pfn: afe18 - afe80 __free_memory_core, range: 0xafee0000 - 0xaff00000, pfn: afee0 - aff00 __free_memory_core, range: 0xaff80000 - 0xaff8d000, pfn: aff80 - aff8d __free_memory_core, range: 0xafff2000 - 0xafff4580, pfn: afff2 - afff4 __free_memory_core, range: 0xafffe000 - 0xafffe0e0, pfn: afffe - afffe __free_memory_core, range: 0xafffe4fc - 0xafffe500, pfn: affff - afffe __free_memory_core, range: 0xafffe6e4 - 0xafffe700, pfn: affff - afffe __free_memory_core, range: 0xafffe8dc - 0xafffe8e0, pfn: affff - afffe __free_memory_core, range: 0xafffe970 - 0xafffe980, pfn: affff - afffe __free_memory_core, range: 0xafffe990 - 0xafffe9a0, pfn: affff - afffe __free_memory_core, range: 0xafffe9a4 - 0xafffe9c0, pfn: affff - afffe __free_memory_core, range: 0xafffeb54 - 0xafffeb60, pfn: affff - afffe __free_memory_core, range: 0xafffecf4 - 0xafffed00, pfn: affff - afffe __free_memory_core, range: 0xafffefc4 - 0xafffefd8, pfn: affff - afffe __free_memory_core, range: 0xb0200000 - 0xc0000000, pfn: b0200 - b0200 __free_memory_core, range: 0xcc000000 - 0xdca00000, pfn: cc000 - b0200 __free_memory_core, range: 0xde700000 - 0xdea00000, pfn: de700 - b0200 __free_memory_core, range: 0xe0800000 - 0xe0c00000, pfn: e0800 - b0200 __free_memory_core, range: 0xf4b00000 - 0xf7000000, pfn: f4b00 - b0200 __free_memory_core, range: 0xfda00000 - 0xffffffff, pfn: fda00 - b0200 > It seems that with SPARSEMEM we don't align the freed parts on pageblock > boundaries. > > Can you try the patch below: > > diff --git a/mm/memblock.c b/mm/memblock.c > index afaefa8fc6ab..1926369b52ec 100644 > --- a/mm/memblock.c > +++ b/mm/memblock.c > @@ -1941,14 +1941,13 @@ static void __init free_unused_memmap(void) > * due to SPARSEMEM sections which aren't present. > */ > start = min(start, ALIGN(prev_end, PAGES_PER_SECTION)); > -#else > +#endif > /* > * Align down here since the VM subsystem insists that the > * memmap entries are valid from the bank start aligned to > * MAX_ORDER_NR_PAGES. > */ > start = round_down(start, MAX_ORDER_NR_PAGES); > -#endif > > /* > * If we had a previous bank, and there is a space > >
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