Hi Lianbo, -----Original Message----- > +======================= > +What is the VMCOREINFO? > +======================= > + > +VMCOREINFO is a special ELF note section. It contains various > +information from the kernel like structure size, page size, symbol > +values, field offsets, etc. These data are packed into an ELF note > +section and used by user-space tools like crash and makedumpfile to > +analyze a kernel's memory layout. > + > +To dump the VMCOREINFO contents, one can do: > + > +# makedumpfile -g VMCOREINFO -x vmlinux again, this command does not dump the VMCOREINFO in ELF note section. It converts the vmlinux's debug infomation into a VMCOREINFO-like data. So I don't think this command is suitable to introduce here. > +PG_lru|PG_private|PG_swapcache|PG_swapbacked|PG_slab| > +PG_hwpoision|PG_head_mask > +----------------------------------------------------- > + > +Page attributes. These flags are used to filter free pages. Some of these are not used to filter *free* pages, so ... used to filter various unnecessary pages. > +PAGE_BUDDY_MAPCOUNT_VALUE or ~PG_buddy > +-------------------------------------- then, this can be merged into the one above? > +====== > +x86_64 > +====== ... > +PAGE_OFFLINE_MAPCOUNT_VALUE(~PG_offline) > +---------------------------------------- This looks not only for x86_64, and also can be merged into the PG_* flags? Thank you for your effort! Kazu
