lkml.org 
[lkml]   [2022]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v6 00/71] Introducing the Maple Tree
On Sat, 26 Feb 2022, Hugh Dickins wrote:
>
> I say "often": it's very erratic. Once, a machine booted with mem=1G
> ran kernel builds successfully swapping for 4.5 hours before faulting
> in __nr_to_section in virt_to_folio ... while doing a __vma_adjust() -
> you'll ask me for a full stacktrace, and I'll answer sorry, too many,
> please try for yourself. Another time, for 1.5 hours before hitting
> the BUG_ON(is_migration_entry(entry) && !PageLocked(p)) in
> pfn_swap_entry_to_page() - suggesting anon_vma locking had not been
> right while doing page migration (I was exercising THPs a lot).
> But now, can I even get it to complete the boot sequence?

Sorry, I never mentioned the architecture: x86_64 throughout for me.

\
 
 \ /
  Last update: 2022-02-27 19:33    [W:0.160 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site