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Subject[PATCH 0/2] Fix page_owner broken on arm64
Date
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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