lkml.org 
[lkml]   [2021]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Re: [PATCH] mm: hugetlbfs: add hwcrp_hugepages to record memory failure on hugetlbfs
Date
> If you can use root privilege in your use-case, an easy way to get the
> number of corrupted hugepages is to use page-types.c (which reads
> /proc/kpageflags) like below:
>
> $ page-types -b huge,hwpoison=huge,hwpoison
> flags page-count MB symbolic-flags long-symbolic-flags
> 0x00000000000a8000 1 0 _______________H_G_X_______________________ compound_head,huge,hwpoison
> total 1 0
>
> But I guess that many usecases do not permit access to this interface,
> where some new accounting interface for corrupted hugepages could be
> helpful as you suggest.

Thanks for your suggestion very much. This approach is helpful to me.
But as you say, root privilege is not permitted in most cases. And I
also want to know the number of corrupted hugepages per node.

--
Bin Wang

\
 
 \ /
  Last update: 2021-06-09 04:24    [W:0.559 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site