older LFS partition boots, the new one does not - with same kernel

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Hallo dear list,

I'd like to return to a problem I described a few weeks ago, but with a new=
 twist, and ask for advice please.

Over the weekend I compiled the latest LFS-dev book on an ancient machine, =
a Core2duo in 32 bit mode, i.e. the system I used to compile is LFS 12.0 32=
 bit.
The full LFS compile went fine, I fixed /etc/fstab, added a root password, =
copied kernel modules to the correct position, and - again - had some stran=
ge exceptions upon kernel boot about ELF signatures (see below).

What's absolutely strange to me: the exact same kernel works when booting t=
he older 12.0 without any errors, loading ethernet and USB drivers and is n=
icely usable.
So this means it's not a defect RAM module - else the 12.0 would show the s=
ame symptoms. The system has i915 chipset and tg3 ethernet module.

The only other explanation to me was a hardware defect on the disk, but I d=
id a binary compare and the kernel files are identical and there are no rea=
d errors from /mnt/lfs.
The system *does* finally finish executing /sbin/init after reporting the e=
xceptions.
I see the login prompt, but I don't have a usable keyboard, and there's an =
error message that the ethernet interface does not exist.
Another idea I had was the decompression code for the gz modules (opcodes t=
hat are not present on the old CPU), but then the same symptoms would also =
occur on the other LFS partition.

root@buero ~ # find /lib/modules/6.12.68/ /boot/vmlinuz* -type f | while re=
ad f; do cmp -s {,/mnt/lfs}${f}; done
<no output, i.e. no differences found>

Jan 31 12:47:43 buero kernel: md: ... autorun DONE.
Jan 31 12:47:44 buero kernel: EXT4-fs (sda1): orphan cleanup on readonly fs
Jan 31 12:47:44 buero kernel: EXT4-fs (sda1): mounted filesystem 1a3b33ce-2=
9c8-4523-b5da-ec2a3fac124b ro with ordered data mode. Quota mode: none.
Jan 31 12:47:44 buero kernel: VFS: Mounted root (ext4 filesystem) readonly =
on device 8:1.
Jan 31 12:47:44 buero kernel: devtmpfs: mounted
Jan 31 12:47:44 buero kernel: Freeing unused kernel image (initmem) memory:=
 760K
Jan 31 12:47:44 buero kernel: Write protecting kernel text and read-only da=
ta: 10736k
Jan 31 12:47:44 buero kernel: Run /sbin/init as init process
Jan 31 12:47:44 buero kernel:   with arguments:
Jan 31 12:47:44 buero kernel:     /sbin/init
Jan 31 12:47:44 buero kernel:     nosplash
Jan 31 12:47:44 buero kernel:   with environment:
Jan 31 12:47:44 buero kernel:     HOME=3D/
Jan 31 12:47:44 buero kernel:     TERM=3Dlinux
Jan 31 12:47:44 buero kernel: tsc: Refined TSC clocksource calibration: 319=
1.999 MHz
Jan 31 12:47:44 buero kernel: clocksource: tsc: mask: 0xffffffffffffffff ma=
x_cycles: 0x2e02c398820, max_idle_ns: 440795273435 ns
Jan 31 12:47:44 buero kernel: clocksource: Switched to clocksource tsc
Jan 31 12:47:44 buero kernel: stty (581) used greatest stack depth: 5848 by=
tes left
Jan 31 12:47:45 buero kernel: random: crng init done
Jan 31 12:47:45 buero udevd[707]: Starting systemd-udevd version 259
Jan 31 12:47:45 buero udevd[708]: Using default interface naming scheme 'v2=
59'.
Jan 31 12:47:46 buero kernel: ------------[ cut here ]------------
Jan 31 12:47:46 buero kernel: WARNING: CPU: 0 PID: 916 at mm/highmem.c:622 =
kunmap_local_indexed+0xd8/0xf0
Jan 31 12:47:46 buero kernel: Modules linked in:
Jan 31 12:47:46 buero kernel: CPU: 0 UID: 0 PID: 916 Comm: (udev-worker) No=
t tainted 6.12.68 #1
Jan 31 12:47:46 buero kernel: Hardware name: Hewlett-Packard HP Compaq dc76=
00 Small Form Factor/09F8h, BIOS 786D1 v01.61 07/01/2009
Jan 31 12:47:46 buero kernel: EIP: kunmap_local_indexed+0xd8/0xf0
Jan 31 12:47:46 buero kernel: Code: ec ff 64 a1 04 b2 cd c1 85 c0 74 26 e8 =
21 e9 ec ff 5b 5e 5f 5d c3 8d 74 26 00 0f 0b e9 62 ff ff ff 90 0f 0b 90 2e =
8d 74 26 00 <0f> 0b eb 9a 8d 74 26 00 e8 6b 89 65 00 eb d3 90 2e 8d b4 26 0=
0 00
Jan 31 12:47:46 buero kernel: EAX: 00000001 EBX: fffba000 ECX: 00046000 EDX=
: fffb9000
Jan 31 12:47:46 buero kernel: ESI: c237e000 EDI: 00000001 EBP: c28b9e60 ESP=
: c28b9e54
Jan 31 12:47:46 buero kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 =
EFLAGS: 00010206
Jan 31 12:47:46 buero kernel: CR0: 80050033 CR2: 010204cc CR3: 02f54000 CR4=
: 000006d0
Jan 31 12:47:46 buero kernel: Call Trace:
Jan 31 12:47:46 buero kernel:  module_decompress+0x12e/0x230
Jan 31 12:47:46 buero kernel:  init_module_from_file+0x92/0xb0
Jan 31 12:47:46 buero kernel:  __ia32_sys_finit_module+0x115/0x2c0
Jan 31 12:47:46 buero kernel:  ia32_sys_call+0x1814/0x1e30
Jan 31 12:47:46 buero kernel:  __do_fast_syscall_32+0x50/0xd0
Jan 31 12:47:46 buero kernel:  do_fast_syscall_32+0x29/0x60
Jan 31 12:47:46 buero kernel:  do_SYSENTER_32+0x15/0x20
Jan 31 12:47:46 buero kernel:  entry_SYSENTER_32+0x98/0xf9
Jan 31 12:47:46 buero kernel: EIP: 0xb7f15579
Jan 31 12:47:46 buero kernel: Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 =
01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 =
0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8=
d 76
Jan 31 12:47:46 buero kernel: EAX: ffffffda EBX: 00000019 ECX: b754d44f EDX=
: 00000004
Jan 31 12:47:46 buero kernel: ESI: 0101b530 EDI: 00fc4240 EBP: 00000000 ESP=
: bfea394c
Jan 31 12:47:46 buero kernel: DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b =
EFLAGS: 00000296
Jan 31 12:47:46 buero kernel: ---[ end trace 0000000000000000 ]---
Jan 31 12:47:46 buero kernel: Invalid ELF section hdr(type 569694567)
Jan 31 12:47:46 buero kernel: ------------[ cut here ]------------
Jan 31 12:47:46 buero kernel: DEBUG_LOCKS_WARN_ON(current->kmap_ctrl.idx)
Jan 31 12:47:46 buero kernel: WARNING: CPU: 0 PID: 916 at include/linux/hig=
hmem-internal.h:17 syscall_exit_to_user_mode+0xfa/0x120
Jan 31 12:47:46 buero kernel: Modules linked in:
Jan 31 12:47:46 buero kernel: CPU: 0 UID: 0 PID: 916 Comm: (udev-worker) Ta=
inted: G        W          6.12.68 #1
Jan 31 12:47:46 buero kernel: Tainted: [W]=3DWARN
Jan 31 12:47:46 buero kernel: Hardware name: Hewlett-Packard HP Compaq dc76=
00 Small Form Factor/09F8h, BIOS 786D1 v01.61 07/01/2009
Jan 31 12:47:46 buero kernel: EIP: syscall_exit_to_user_mode+0xfa/0x120
Jan 31 12:47:46 buero kernel: Code: e8 cb 91 b9 ff 85 c0 0f 84 6f ff ff ff =
8b 0d 60 59 c0 c1 85 c9 0f 85 61 ff ff ff 68 89 23 9b c1 68 e1 b0 9a c1 e8 =
b6 de 84 ff <0f> 0b 58 5a e9 49 ff ff ff 2e 8d 74 26 00 e8 e3 27 8d ff e9 0=
b ff
Jan 31 12:47:46 buero kernel: EAX: 0000002b EBX: 00000001 ECX: 00000002 EDX=
: 00000000
Jan 31 12:47:46 buero kernel: ESI: 00000000 EDI: 00fc4240 EBP: c28b9f84 ESP=
: c28b9f70
Jan 31 12:47:46 buero kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 =
EFLAGS: 00010086
Jan 31 12:47:46 buero kernel: CR0: 80050033 CR2: 010204cc CR3: 02f54000 CR4=
: 000006d0
Jan 31 12:47:46 buero kernel: Call Trace:
Jan 31 12:47:46 buero kernel:  __do_fast_syscall_32+0x5a/0xd0
Jan 31 12:47:46 buero kernel:  do_fast_syscall_32+0x29/0x60
Jan 31 12:47:46 buero kernel:  do_SYSENTER_32+0x15/0x20
Jan 31 12:47:46 buero kernel:  entry_SYSENTER_32+0x98/0xf9
Jan 31 12:47:46 buero kernel: EIP: 0xb7f15579
Jan 31 12:47:46 buero kernel: Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 =
01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 =
0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8=
d 76
Jan 31 12:47:46 buero kernel: EAX: fffffff8 EBX: 00000019 ECX: b754d44f EDX=
: 00000004
Jan 31 12:47:46 buero kernel: ESI: 0101b530 EDI: 00fc4240 EBP: 00000000 ESP=
: bfea394c
Jan 31 12:47:46 buero kernel: DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b =
EFLAGS: 00000296
Jan 31 12:47:46 buero kernel: ---[ end trace 0000000000000000 ]---
Jan 31 12:47:46 buero kernel: Invalid ELF section hdr(type 3901880924)
Jan 31 12:47:46 buero kernel: Invalid ELF section hdr(type 4123171279)
Jan 31 12:47:46 buero kernel: Invalid ELF section hdr(type 1219650857)
Jan 31 12:47:46 buero kernel: Invalid ELF header magic: !=3D \x7fELF
Jan 31 12:47:46 buero last message buffered 1 times
Jan 31 12:47:46 buero kernel: Invalid ELF section hdr(type 3192168103)
Jan 31 12:47:46 buero kernel: Invalid ELF section hdr(type 1079286796)
Jan 31 12:47:46 buero kernel: Invalid ELF section hdr(type 3502702874)

I have no clue where to look further or how to do any more diagnosis.
Why does it work on one partition, but not the fresh compile on another one?

Stay healthy,
Thomas Seeling
--=20
"Do you wanna be a legend or a passing footprint on the sands of time?"

Bleiben Sie gesund,
Thomas Seeling
--=20
"Do you wanna be a legend or a passing footprint on the sands of time?"

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