From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 8 Mar 2000 15:19:46 +0100 To: Michael Schmitz , linuxppc-dev@lists.linuxppc.org From: Benjamin Herrenschmidt Subject: Re: Booting 2.3.48 (devel) kernel problems? Message-Id: <20000308151946.024345@mailhost.mipsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Wed, Mar 8, 2000, Michael Schmitz wrote: >So the framebuffer got mapped from OF but not from BootX. I think it worked with OF because we inherit from OF SDR1 and, by luck, OF page tables are high enough in memory to not have been damaged by the kernel. When booting via BootX, that's not the case. We should not try to access the framebuffer from identify_machine() and MMU_Init() unless it was mapped with a BAT in head.S (for debugging purposes). In normal cases, it will get mapped via map_bootx_text called from setup_arch() and can be used beyond that point. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/