Re: Kernel versions 6.x don't boot on Amiga 4000
Hi Michael,
> that's apparently been corrected in later versions. Commit
> ca831f29f8f25c97182e726429b38c0802200c8f (in from 5.17).
>
> I doubt this would lead to different code generated.
>
> Which was the first broken version you tried? That would narrow down
> the search range considerably...
Version 5.16-02-m68k is the last working version for me on my A3000
(Reported back in Sept last year... Only now have I been able to get
back to it)..
I downloaded the kernel image deb's from snapshot.debian.org.
Version's 5.16-3 through to 5.16-6 boot but fail back to the initramfs
saying they can't find the root file system. The hd is listed during
the boot process though.
It's not the size of the initram, but a kernel issue. I changed the
initramfs settings from "most" to "dep", shrinking it in size, and
still had kernel boot issues.
Kernel's above 5.17/5.19/6.x fail and don't even start the heart beat.
Searching for SAVEKMSG magic...
Found 2674 bytes at 0x001e0010
>>>>>>>>>>>>>>>>>>>>
[ 0.000000] Linux version 5.17.0-1-m68k (debian-kernel@lists.debian.org) (gcc-11 (Debian 11.2.0-20) 11.2.0, GNU ld (GNU Binutils for Debian) 2.38) #1 Debian 5.17.3-1 (2022-04-18)
[ 0.000000] printk: console [debug0] enabled
[ 0.000000] Amiga hardware found: [A3000] VIDEO BLITTER AMBER_FF AUDIO FLOPPY A3000_SCSI KEYBOARD MOUSE SERIAL PARALLEL A3000_CLK CHIP_RAM PAULA DENISE_HR AGNUS_HR_PAL MAGIC_REKICK ZORRO3
[ 0.000000] initrd: 0f7f395d - 10000000
[ 0.000000] Ignoring memory chunk at 0x7800000:0x800000 before the first chunk
[ 0.000000] Fix your bootloader or use a memfile to make use of this area!
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000008000000-0x000000ffffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000008000000-0x000000000fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000008000000-0x000000000fffffff]
[ 0.000000] Unable to handle kernel access at virtual address (ptrval)
[ 0.000000] Oops: 00000000
[ 0.000000] Modules linked in:
[ 0.000000] PC: [<001edcac>] memcmp+0x2c/0x5c
[ 0.000000] SR: 2700 SP: (ptrval) a2: 0047d530
[ 0.000000] d0: 00408ab1 d1: 0ffffff8 d2: 001edc80 d3: 0000019e
[ 0.000000] d4: 0804c588 d5: 0080c6a3 a0: 0000000c a1: 0ffffff4
[ 0.000000] Process swapper (pid: 0, task=(ptrval))
[ 0.000000] Frame format=7 eff addr=0047bfb8 ssw=0505 faddr=0ffffff4
[ 0.000000] wb 1 stat/addr/data: 0005 0804c588 0080c6a3
[ 0.000000] wb 2 stat/addr/data: 0005 0053c000 0000019e
[ 0.000000] wb 3 stat/addr/data: 0005 0047bfb0 001edc80
[ 0.000000] push data: 0080c6a3 00353a8a 08001000 08056094
[ 0.000000] Stack from 0047bfb0:
[ 0.000000] 001edc80 0000019e 00353a8a 00514b0e 0ffffff4 00408aad 0000000c 0053c000
[ 0.000000] 0000019e 0804c588 0080c6a3 08050258 0000ffff 08062278 08001000 08056094
[ 0.000000] 0ffffff0 005333b8 00000000 00513872
[ 0.000000] Call Trace: [<001edc80>] memcmp+0x0/0x5c
[ 0.000000] [<00353a8a>] _printk+0x0/0x18
[ 0.000000] [<00514b0e>] start_kernel+0x86/0x5ca
[ 0.000000] [<0000ffff>] sz_long+0x5/0x6
[ 0.000000] [<00513872>] _sinittext+0x872/0x11f8
[ 0.000000]
[ 0.000000] Code: 4280 6036 2209 200b 2640 2241 5881 5880 <2411> b493 66e4 2241 2640 5988 7403 b488 65e6 60d6 4283 1631 1800 4282 1433 1800
[ 0.000000] Disabling lock debugging due to kernel taint
[ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
<<<<<<<<<<<<<<<<<<<<
Searching for SAVEKMSG magic...
Found 2632 bytes at 0x001e0010
>>>>>>>>>>>>>>>>>>>>
[ 0.000000] Linux version 5.18.0-3-m68k (debian-kernel@lists.debian.org) (gcc-11 (Debian 11.3.0-4) 11.3.0, GNU ld (GNU Binutils for Debian) 2.38.90.20220713) #1 Debian 5.18.14-1 (2022-07-23)
[ 0.000000] printk: console [debug0] enabled
[ 0.000000] Amiga hardware found: [A3000] VIDEO BLITTER AMBER_FF AUDIO FLOPPY A3000_SCSI KEYBOARD MOUSE SERIAL PARALLEL A3000_CLK CHIP_RAM PAULA DENISE_HR AGNUS_HR_PAL MAGIC_REKICK ZORRO3
[ 0.000000] initrd: 0facd79f - 10000000
[ 0.000000] Ignoring memory chunk at 0x7800000:0x800000 before the first chunk
[ 0.000000] Fix your bootloader or use a memfile to make use of this area!
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000008000000-0x000000ffffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000008000000-0x000000000fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000008000000-0x000000000fffffff]
[ 0.000000] Unable to handle kernel access at virtual address (ptrval)
[ 0.000000] Oops: 00000000
[ 0.000000] Modules linked in:
[ 0.000000] PC: [<001ed3a8>] memcmp+0x2c/0x5c
[ 0.000000] SR: 2700 SP: (ptrval) a2: 00481530
[ 0.000000] d0: 0040af9d d1: 0ffffff8 d2: 001ed37c d3: 0000019e
[ 0.000000] d4: 0806ba68 d5: 00532861 a0: 0000000c a1: 0ffffff4
[ 0.000000] Process swapper (pid: 0, task=(ptrval))
[ 0.000000] Frame format=7 eff addr=0047ffbc ssw=0505 faddr=0ffffff4
[ 0.000000] wb 1 stat/addr/data: 0005 0806ba68 00532861
[ 0.000000] wb 2 stat/addr/data: 0005 00536000 0000019e
[ 0.000000] wb 3 stat/addr/data: 0005 0047ffb4 001ed37c
[ 0.000000] push data: 00532861 00355728 08001000 0804dcc4
[ 0.000000] Stack from 0047ffb4:
[ 0.000000] 001ed37c 0000019e 00355728 0050fb0e 0ffffff4 0040af99 0000000c 00536000
[ 0.000000] 0000019e 0806ba68 00532861 0806f738 08091288 08001000 0804dcc4 0ffffff0
[ 0.000000] 0052e2b8 00000000 0050e872
[ 0.000000] Call Trace: [<001ed37c>] memcmp+0x0/0x5c
[ 0.000000] [<00355728>] _printk+0x0/0x18
[ 0.000000] [<0050fb0e>] start_kernel+0x86/0x5a0
[ 0.000000] [<0050e872>] _sinittext+0x872/0x11f8
[ 0.000000]
[ 0.000000] Code: 4280 6036 2209 200b 2640 2241 5881 5880 <2411> b493 66e4 2241 2640 5988 7403 b488 65e6 60d6 4283 1631 1800 4282 1433 1800
[ 0.000000] Disabling lock debugging due to kernel taint
[ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
<<<<<<<<<<<<<<<<<<<<
--
Stephen - Vk3heg
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