Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH] powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK | Date | Wed, 19 Feb 2020 23:40:00 +1100 (AEDT) |
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On Fri, 2020-02-14 at 06:53:00 UTC, Christophe Leroy wrote: > power_save_ppc32_restore() is called during exception entry, before > re-enabling the MMU. It substracts KERNELBASE from the address > of nap_save_msscr0 to access it. > > With CONFIG_VMAP_STACK enabled, data MMU translation has already been > re-enabled, so power_save_ppc32_restore() has to access > nap_save_msscr0 by its virtual address. > > Reported-by: Larry Finger <Larry.Finger@lwfinger.net> > Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> > Fixes: cd08f109e262 ("powerpc/32s: Enable CONFIG_VMAP_STACK") > Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/477f3488a94e35380c82a7498d46f10fa5f3edd2
cheers
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