lkml.org 
[lkml]   [2020]   [Apr]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v2] powerpc/8xx: Fix STRICT_KERNEL_RWX startup test failure
Date
On Mon, 2020-04-20 at 05:37:42 UTC, Christophe Leroy wrote:
> WRITE_RO lkdtm test works.
>
> But when selecting CONFIG_DEBUG_RODATA_TEST, the kernel reports
> rodata_test: test data was not read only
>
> This is because when rodata test runs, there are still old entries
> in TLB.
>
> Flush TLB after setting kernel pages RO or NX.
>
> Fixes: d5f17ee96447 ("powerpc/8xx: don't disable large TLBs with CONFIG_STRICT_KERNEL_RWX")
> Cc: stable@vger.kernel.org
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/b61c38baa98056d4802ff5be5cfb979efc2d0f7a

cheers

\
 
 \ /
  Last update: 2020-04-26 01:53    [W:0.129 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site