Re: 4.8.0-rc1: Invalid memory access at $SRR0: 0140f86c $SRR1: 00003030
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2016-08-10 07:18:24
On Wed, 2016-08-10 at 14:58 +1000, Michael Ellerman wrote:
Benjamin Herrenschmidt [off-list ref] writes:quoted
On Tue, 2016-08-09 at 02:06 -0700, Christian Kujau wrote:quoted
On Mon, 8 Aug 2016, Christian Kujau wrote:quoted
while trying to upgrade this PowerBook G4 from 4.7-rc7 to 4.8- rc1, it's unable to boot the Yaboot (v1.3.16 from Debian/stable) boot loader:There should already be a fix for that: http://patchwork.ozlabs.org/patch/654560/ It should be in Michael's tree if not already in Linus.That fix is in rc1, so this must be a different bug.
It's all the jump label cruft that landed in apply_feature_fixups() You can't call random call there. On ppc32, it's running in that weirdo environment where the kernel isn't running at its linked address and we need to manually RELOC() everything. I'm moving them to a separate init call, patch on its way... Cheers, Ben.