On arm64, cat /sys/kernel/debug/page_owner All pages return the same stack stack_trace_save+0x4c/0x78 register_early_stack+0x34/0x70 init_page_owner+0x34/0x230 page_ext_init+0x1bc/0x1dc
The reason is arch_stack_walk save 2 more entries than before. To fix it, add skip in arch_stack_walk *** BLURB HERE *** 1. Prepare for 2, move stacktrace_cookie to .h 2. Fix the problem Chen Jun (2): stacktrace: Move struct stacktrace_cookie to stacktrace.h arm64: stacktrace: Add skip when task == current arch/arm64/kernel/stacktrace.c | 5 +++-- include/linux/stacktrace.h | 7 +++++++ kernel/stacktrace.c | 7 ------- 3 files changed, 10 insertions(+), 9 deletions(-) -- 2.9.4
