[lkml]   [2019]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH stable 4.9] powerpc/lib: fix book3s/32 boot failure due to code patching
On Wed, May 15, 2019 at 06:40:47AM +0000, Christophe Leroy wrote:
> [Backport of upstream commit b45ba4a51cde29b2939365ef0c07ad34c8321789]
> On powerpc32, patch_instruction() is called by apply_feature_fixups()
> which is called from early_init()
> There is the following note in front of early_init():
> * Note that the kernel may be running at an address which is different
> * from the address that it was linked at, so we must use RELOC/PTRRELOC
> * to access static data (including strings). -- paulus
> Therefore init_mem_is_free must be accessed with PTRRELOC()
> Fixes: 1c38a84d4586 ("powerpc: Avoid code patching freed init sections")
> Link:
> Signed-off-by: Christophe Leroy <>
> ---
> Can't apply the upstream commit as such due to several other unrelated stuff
> like for instance STRICT_KERNEL_RWX which are missing.
> So instead, using same approach as for commit 252eb55816a6f69ef9464cad303cdb3326cdc61d

Now queued up, thanks.

greg k-h

 \ /
  Last update: 2019-05-15 10:30    [W:0.022 / U:16.464 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site