On Tue, Aug 02, 2022 at 08:18:17PM +0800, Xianting Tian wrote: > These infos are needed by the kdump crash tool. Since these values change > from time to time, it is preferable to export them via vmcoreinfo than to > change the crash's code frequently. > I have to agree with Conor.Dooley, that this patch is misleading (I see documentation instead of real export). So IMO, the patch subject should be "Documentation: kdump: describe VMCOREINFO export for RISCV64". For MODULES_VADDR and friends, the doc can be improved, like: diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst index 6b76284a503ca5..6694acc32c3588 100644 --- a/Documentation/admin-guide/kdump/vmcoreinfo.rst +++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst @@ -615,14 +615,13 @@ phys_ram_base Indicates the start physical RAM address. -MODULES_VADDR|MODULES_END|VMALLOC_START|VMALLOC_END|VMEMMAP_START|VMEMMAP_END ------------------------------------------------------------------------------ -KASAN_SHADOW_START|KASAN_SHADOW_END|KERNEL_LINK_ADDR|ADDRESS_SPACE_END ----------------------------------------------------------------------- +MODULES_VADDR|MODULES_END|VMALLOC_START|VMALLOC_END|VMEMMAP_START|VMEMMAP_END|KASAN_SHADOW_START|KASAN_SHADOW_END|KERNEL_LINK_ADDR|ADDRESS_SPACE_END +---------------------------------------------------------------------------------------------------------------------------------------------------- Used to get the correct ranges: - MODULES_VADDR ~ MODULES_END : Kernel module space. - VMALLOC_START ~ VMALLOC_END : vmalloc() / ioremap() space. - VMEMMAP_START ~ VMEMMAP_END : vmemmap region, used for struct page array. - KASAN_SHADOW_START ~ KASAN_SHADOW_END : kasan shadow space. - KERNEL_LINK_ADDR ~ ADDRESS_SPACE_END : Kernel link and BPF space. + + * MODULES_VADDR ~ MODULES_END : Kernel module space. + * VMALLOC_START ~ VMALLOC_END : vmalloc() / ioremap() space. + * VMEMMAP_START ~ VMEMMAP_END : vmemmap region, used for struct page array. + * KASAN_SHADOW_START ~ KASAN_SHADOW_END : kasan shadow space. + * KERNEL_LINK_ADDR ~ ADDRESS_SPACE_END : Kernel link and BPF space. Thanks. -- An old man doll... just what I always wanted! - Clara
