On Fri, 7 Aug 2015, Greg Andrzejewski wrote: > On 8/7/15, Laurent Vivier <laur...@vivier.eu> wrote: > > Hi, > > > > If your kernel is bigger than 8 MB, you need a kernel with commit: > > > > commit 486df8bc4627bdfc032d11bedcd056cc5343ee62 > > > > m68k: Increase initial mapping to 8 or 16 MiB if possible > > > > If your RAM is not at 0 address, you need also: > > > > commit f1a1b63529986d0c8970da182f0935eae059421b > > > > m68k: Fix boot regression on machines with RAM at non-zero > > > > Both commits are in kernel 3.16 and later. > > > > To help to debug, what is the last letter displayed by the kernel before > > crash ? > > (did you set CONFIG_EARLY_PRINTK ?) > > > > Laurent > > > > That's the problem I'm having. CONFIG_EARLY_PRINTK is set, earlyprintk > passed on the command line, but I get nothing on screen, nothing over > the serial port, and nothing in the log buffer.
Indeed. The penguin log attached to your original email says, > > > Physical RAM: 40 MB > > > Command line is 'earlyprintk' > > > GUnzipping Small Studio H.D.: greg:vmlinuz-4.0.0-2-m68k > > > .Kernel format: ELF > > > > > > The kernel will be located at physical 0x00001000 > > > Kernel at logical address 0x15fabc0 > > > GUnzipping Small Studio H.D.: greg:vmlinuz-4.0.0-2-m68k > > > ....................................................Read 3246816 bytes > > > for segment 0, requested 3246816 > > > ..Read 144816 bytes for segment 1, requested 144816 > > > > > > Bootstrap's bootinfo version: 2.0 > > > Kernel's bootinfo version : 2.0 > > > Kernel entry physical is 0x2000 > > > Kernel segment 0 at 0x15fabc0, size 3413744 > > > Kernel segment 1 at 0x193cbc0, size 147456 > > > Kernel size is 0x366000 This looks like a Debian ports kernel so it should have the right config. > Same kernel image boots on my SE/30. I seem to recall that the Penguin failure with compressed kernels does not affect 68030 machines... FWIW. > > I'm using kernel 4.0 and decompressed image size is 3.5 MB, so I don't > think I'm running into either of those two issues. Unless... don't macs > shadow the ROM at physical address 0 on powerup? Could this be > triggering as part of the shutdown of MacOS? Unikely. Only triggered by hard reset AFAIK. In anycase, Penguin-19 has been used successfully on MacOS 7.5.3 on a Quadra 950. BTW, I have Penguin logs from my Powerbook 180 that also say "The kernel will be located at physical 0x00001000". -- > > -Greg > -- To UNSUBSCRIBE, email to debian-68k-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/alpine.LNX.2.00.1508080940230.27748@nippy.intranet
