Re: Kernel versions 6.x don't boot on Amiga 4000

2023-02-21 Thread Michael Schmitz
Hi Adrian, On 22/02/23 10:46, John Paul Adrian Glaubitz wrote: Hi Michael! On Wed, 2023-02-22 at 10:09 +1300, Michael Schmitz wrote: a1 is justĀ  before the end of your RAM chunk. If that's a longword Actually it isn't that close - if I read the stack correctly, we're comparing 0xc bytes fro

Re: Kernel versions 6.x don't boot on Amiga 4000

2023-02-21 Thread John Paul Adrian Glaubitz
Hi Michael! On Wed, 2023-02-22 at 10:09 +1300, Michael Schmitz wrote: > a1 is justĀ  before the end of your RAM chunk. If that's a longword > access, you'd fall over the edge :) Can you disassemble the code snippet > (or memcmp()) so we can see what's happening? Here you go: 00201d14 : 201d14

Re: Kernel versions 6.x don't boot on Amiga 4000

2023-02-21 Thread Michael Schmitz
Hi Adrian, On 22/02/23 04:53, John Paul Adrian Glaubitz wrote: Hi Geert! On Tue, 2023-02-21 at 15:55 +0100, Geert Uytterhoeven wrote: Looks surprisingly similar to the issue reported by Stan. Do the mitigations given in https://lore.kernel.org/all/camuhmdutkr2zvzijflxvs9d_injbktsnqqqfo1oxnjhze

Re: Kernel versions 6.x don't boot on Amiga 4000

2023-02-21 Thread John Paul Adrian Glaubitz
Hi Geert! On Tue, 2023-02-21 at 15:55 +0100, Geert Uytterhoeven wrote: > Looks surprisingly similar to the issue reported by Stan. > Do the mitigations given in > https://lore.kernel.org/all/camuhmdutkr2zvzijflxvs9d_injbktsnqqqfo1oxnjhzeoy...@mail.gmail.com > help? The kernel actually crashes wit

Re: Kernel versions 6.x don't boot on Amiga 4000

2023-02-21 Thread Geert Uytterhoeven
Hi Adrian, On Tue, Feb 21, 2023 at 3:51 PM John Paul Adrian Glaubitz wrote: > I tested Debian's most recent m68k kernels from the 6.0.x and 6.1.x series and Thanks for testing! > neither of these boot on my Amiga 4000/060. Both get stuck at the ABCDGHIJK > message. Looks surprisingly similar t

Kernel versions 6.x don't boot on Amiga 4000

2023-02-21 Thread John Paul Adrian Glaubitz
Hi! I tested Debian's most recent m68k kernels from the 6.0.x and 6.1.x series and neither of these boot on my Amiga 4000/060. Both get stuck at the ABCDGHIJK message. Will try earlier kernels until I found the one where the breakage was introduced. Currently known latest kernel to work is 5.10.