On Wed, Mar 15, 2017 at 11:41:18AM +0000, David Woodhouse wrote: > On Wed, 2017-03-15 at 18:56 +0900, AKASHI Takahiro wrote: > > This patch series adds kdump support on arm64. > > > > To load a crash-dump kernel to the systems, a series of patches to > > kexec-tools[1] are also needed. Please use the latest one, v6 [2]. > > For your convinience, you can pick them up from: > > ?? https://git.linaro.org/people/takahiro.akashi/linux-aarch64.git?arm64/kdump > > ?? https://git.linaro.org/people/takahiro.akashi/kexec-tools.git?arm64/kdump > > > > To examine vmcore (/proc/vmcore) on a crash-dump kernel, you can use > > ? - crash utility (v7.1.8 or later) [3] > > > > I tested this patchset on fast model and hikey. > > Please build with CONFIG_DEBUG_SECTION_MISMATCH=y. > > It might be because I'm using your v32 patchset, hacked late at night > to apply to a 4.9 kernel, but I see this: > > WARNING: vmlinux.o(.text+0x10240): Section mismatch in reference from the function arch_kexec_protect_crashkres() to the function .init.text:create_pgd_mapping() > The function arch_kexec_protect_crashkres() references > the function __init create_pgd_mapping(). > This is often because arch_kexec_protect_crashkres lacks a __init? > annotation or the annotation of create_pgd_mapping is wrong. > > WARNING: vmlinux.o(.text+0x102b0): Section mismatch in reference from the function arch_kexec_unprotect_crashkres() to the function .init.text:create_pgd_mapping() > The function arch_kexec_unprotect_crashkres() references > the function __init create_pgd_mapping(). > This is often because arch_kexec_unprotect_crashkres lacks a __init? > annotation or the annotation of create_pgd_mapping is wrong. I double-checked but saw no warnings like these neither for v32 nor v33. I'm afraid that you might have done something wrong in backporting, particularly patch#5. Thanks, -Takahiro AKASHI
