This is a follow-up to patches from zhonjiang [0] and myself [1] that aim to solve a problem in the kcore code, which gets confused by the presence of block mappings in the vmalloc region.
While fixing the crash is quite straight forward [2], we need to tweak the kcore code itself to ensure that it operates correctly on arm64. Fortunately, we can achieve this with two very simple changes: - replace a call to is_vmalloc_or_module_addr() in read_kcore() with a comparison of the kclist type field (#1) - enable CONFIG_ARCH_PROC_KCORE_TEXT for arm64 (#2) [0] http://marc.info/?l=linux-mm&m=149632393629295&w=2 [1] http://marc.info/?l=linux-mm&m=149685966530180&w=2 [2] http://marc.info/?l=linux-mm&m=149694975123959&w=2 Ard Biesheuvel (2): fs/proc: kcore: use kcore_list type to check for vmalloc/module address arm64: mm: select CONFIG_ARCH_PROC_KCORE_TEXT arch/arm64/Kconfig | 3 +++ fs/proc/kcore.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) -- 2.9.3