On Wed, 17 Mar 2021 14:20:48 +0000 Chen Jun <chenjun...@huawei.com> wrote:
> 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 > 5fc57df2f6fd was September 2020, so I assume we'll be needing cc:stable on these? (I'll also assume that the arm folks will be handling these)
