Exact caller of memblock_phys_alloc_range is not available with "memblock=debug". Below information is not enough for memory accounting. for example: [ 0.000000] memblock_reserve: [0x000000023fc6b000-0x000000023fc6bfff] memblock_alloc_range_nid+0xc0/0x188
To enhance the memblock_dbg information or to get the exact owner of the memblock_reserve, add debug logs in memblock_phys_alloc_range function. After adding logs: [ 0.000000] memblock_phys_alloc_range: 4096 bytes align=0x1000 from=0x0000000000000000 max_addr=0x0000000000000000 early_pgtable_alloc+0x24/0x178 [ 0.000000] memblock_reserve: [0x000000023fc6b000-0x000000023fc6bfff] memblock_alloc_range_nid+0xc0/0x188 Signed-off-by: Faiyaz Mohammed <[email protected]> --- mm/memblock.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/memblock.c b/mm/memblock.c index 049df41..f65af9f 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -1419,6 +1419,9 @@ phys_addr_t __init memblock_phys_alloc_range(phys_addr_t size, phys_addr_t start, phys_addr_t end) { + memblock_dbg("%s: %llu bytes align=0x%llx from=%pa max_addr=%pa %pS\n", + __func__, (u64)size, (u64)align, &start, &end, + (void *)_RET_IP_); return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE, false); } -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation
