[lkml]   [2020]   [Jan]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] mm: get rid of WARN if failed to cow user pages
[ drop Ross, add Kirill, linux-mm, and lkml ]

On Tue, Dec 24, 2019 at 9:42 PM Murphy Zhou <> wrote:
> By running xfstests with fsdax enabled, generic/437 always hits this
> warning[1] since this commit:
> commit 83d116c53058d505ddef051e90ab27f57015b025
> Author: Jia He <>
> Date: Fri Oct 11 22:09:39 2019 +0800
> mm: fix double page fault on arm64 if PTE_AF is cleared
> Looking at the test program[2] generic/437 uses, it's pretty easy
> to hit this warning. Remove this WARN as it seems not necessary.

This is not sufficient justification. Does this same test fail without
DAX? If not, why not? At a minimum you need to explain why this is not
indicating a problem.

 \ /
  Last update: 2020-01-15 07:03    [W:0.032 / U:3.996 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site