[Crash-utility] Re: [PATCH v4] arm64: Add vmemmap support

On Mon, 18 Dec 2023, Huang Shijie wrote: > diff --git a/arm64.c b/arm64.c > index 57965c6..fc4ba64 100644 > --- a/arm64.c > +++ b/arm64.c > @@ -117,6 +117,28 @@ static void arm64_calc_kernel_start(void) >     ms->kimage_end = (sp ? sp->value : 0); > } Since x86 also supports VMEMMAP the same approach should work on x86.

In fact most platforms use VMMEMMAP: cl@eng07sys-r113:~/linux$ grep VMEMMAP_ENABLE arch/*/Kconfig* arch/arm64/Kconfig:    select SPARSEMEM_VMEMMAP_ENABLE arch/loongarch/Kconfig:    select SPARSEMEM_VMEMMAP_ENABLE arch/powerpc/Kconfig:    select SPARSEMEM_VMEMMAP_ENABLE arch/riscv/Kconfig:    select SPARSEMEM_VMEMMAP_ENABLE if 64BIT arch/s390/Kconfig:    select SPARSEMEM_VMEMMAP_ENABLE arch/sparc/Kconfig:    select SPARSEMEM_VMEMMAP_ENABLE arch/x86/Kconfig:    select SPARSEMEM_VMEMMAP_ENABLE if X86_64 Can the crash code be generalized so that it works on all platforms?