[Crash-utility] [PATCH]: nr_node_ids

Per Fransson per.fransson.ml at gmail.com
Thu Sep 6 09:46:55 UTC 2012


Hi all,

I'm wondering about the use of the kernel 'nr_node_ids' variable in
memory.c. In kmem_cache_downsize(), vt->kmem_cache_len_nodes defaults
to 1 when 'nr_node_ids' isn't present. But in vm_init() an error
message is printed in the same case. The reason I'm asking is that I'm
getting that error

  "unable to initialize kmem slab cache subsystem"

on a 3.4 kernel. Having vm_init() default to

  vt->kmem_cache_len_nodes=1

as well seems to bring up the slab subsystem, although I'm getting a couple of

  "kmem: vm_area_struct: full list: slab: <nn1>  bad next pointer: <nn2>"

mixed into my kmem -S output. I have no idea if it's related.

Regards,
Per




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