Re: powerpc/32: Fix boot failure on non 6xx platforms

Michael Ellerman
2017-08-08T10:55:19Z

On Tue, 2017-08-08 at 06:37:24 UTC, Christophe Leroy wrote:
> commit d300627c6a536 ("powerpc/6xx: Handle DABR match before
> calling do_page_fault") breaks non 6xx platforms.
>
> [ 6.029556] Failed to execute /init (error -14)
> [ 6.034623] Starting init: /bin/sh exists but couldn't execute it
> (error -14)
> [ 6.041489] Kernel panic - not syncing: No working init found. Try
> passing init= option to kernel. See Linux
> Documentation/admin-guide/init.rst for guidance.
> [ 6.055518] CPU: 0 PID: 1 Comm: init Not tainted
> 4.13.0-rc3-s3k-dev-00143-g7aa62e972a56 #56
> [ 6.063745] Call Trace:
> [ 6.066224] [c60f1ed0] [c001a624] panic+0x108/0x250 (unreliable)
> [ 6.072140] [c60f1f30] [c0002640] rootfs_mount+0x0/0x58
> [ 6.077311] [c60f1f40] [c000cb80] ret_from_kernel_thread+0x5c/0x64
> [ 6.083405] Rebooting in 180 seconds..
>
> This is because in handle_page_fault(), the call to do_page_fault()
> has been mistakenly enclosed inside an #ifdef CONFIG_6xx
>
> Fixes: d300627c6a536 ("powerpc/6xx: Handle DABR match before
> calling do_page_fault")
>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/64d0a506fbdd64906f168539bee32a

cheers