Since the following kernel commits split slab info from struct page
into struct slab, crash cannot get several slab related offsets from
struct page.
d122019bf061 ("mm: Split slab into its own type")
401fb12c68c2 ("mm: Differentiate struct slab fields by sl*b implementations")
07f910f9b729 ("mm: Remove slab from struct page")
Without the patch, "kmem -s|-S" options cannot work
correctly with the following errors:
[/usr/bin/crash] error trace: 532526 => 53353a => 5e0a6a => 5e09dc
[Detaching after fork from child process 28299]
5e09dc: OFFSET_verify.part.36+92
[Detaching after fork from child process 28301]
5e0a6a: OFFSET_verify+58
[Detaching after fork from child process 28303]
53353a: verify_slab_overload_page+588
[Detaching after fork from child process 28305]
532526: do_slab_chain_slab_overload_page+1171
Since the following kernel commits split slab info from struct page into struct slab, crash cannot get several slab related offsets from struct page.
d122019bf061 ("mm: Split slab into its own type") 401fb12c68c2 ("mm: Differentiate struct slab fields by sl*b implementations") 07f910f9b729 ("mm: Remove slab from struct page")
Without the patch, "kmem -s|-S" options cannot work correctly with the following errors:
crash> kmem -s kmem: invalid structure member offset: page_active FILE: memory.c LINE: 12225 FUNCTION: verify_slab_overload_page()
[/usr/bin/crash] error trace: 532526 => 53353a => 5e0a6a => 5e09dc [Detaching after fork from child process 28299]
[Detaching after fork from child process 28301] 5e0a6a: OFFSET_verify+58 [Detaching after fork from child process 28303] 53353a: verify_slab_overload_page+588 [Detaching after fork from child process 28305] 532526: do_slab_chain_slab_overload_page+1171
kmem: invalid structure member offset: page_active FILE: memory.c LINE: 12225 FUNCTION: verify_slab_overload_page()
Signed-off-by: xiaer1921 xiaer1921@gmail.com