Re: [PATCH] powerpc: Set max_mapnr correctly

[Michael Ellerman]

On Tue, 12 Oct 2021 12:40:37 +0200, Christophe Leroy wrote:
> max_mapnr is used by virt_addr_valid() to check if a linear
> address is valid.
> 
> It must only include lowmem PFNs, like other architectures.
> 
> Problem detected on a system with 1G mem (Only 768M are mapped), with
> CONFIG_DEBUG_VIRTUAL and CONFIG_TEST_DEBUG_VIRTUAL, it didn't report
> virt_to_phys(VMALLOC_START), VMALLOC_START being 0xf1000000.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc: Set max_mapnr correctly
      https://git.kernel.org/powerpc/c/602946ec2f90d5bd965857753880db29d2d9a1e9

cheers