Messages in this thread | | | From | Chen Jun <> | Subject | [PATCH 0/2] Fix page_owner broken on arm64 | Date | Wed, 17 Mar 2021 14:20:48 +0000 |
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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
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