buildroot Incorrect selection of kernel headers: expected 5.16.x, got 5.14.x (was: ULX3S -- kernel panic on boot)

--============= Liftoff! ===============--

OpenSBI v0.8-1-gecf7701
   ____                    _____ ____ _____
  / __ \                  / ____|  _ \_   _|
 | |  | |_ __   ___ _ __ | (___ | |_) || |
 | |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |
 | |__| | |_) |  __/ | | |____) | |_) || |_
  \____/| .__/ \___|_| |_|_____/|____/_____|
        | |
        |_|

Platform Name       : LiteX / VexRiscv-SMP
Platform Features   : timer,mfdeleg
Platform HART Count : 8
Boot HART ID        : 0
Boot HART ISA       : rv32imas
BOOT HART Features  : time
BOOT HART PMP Count : 0
Firmware Base       : 0x40f00000
Firmware Size       : 124 KB
Runtime SBI Version : 0.2

MIDELEG : 0x00000222
MEDELEG : 0x0000b101
[    0.000000] Linux version 5.14.0 (florent@panda) (riscv32-buildroot-linux-gnu-gcc.br_real (Buildroot 2021.08-381-g279167ee8d) 10.3.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP Tue Sep 21 12:57:31 CEST 2021
[    0.000000] earlycon: liteuart0 at I/O port 0x0 (options '')
[    0.000000] Malformed early option 'console'
[    0.000000] earlycon: liteuart0 at MMIO 0xf0001000 (options '')
[    0.000000] printk: bootconsole [liteuart0] enabled
[    0.000000] kobject ((ptrval)): tried to init an initialized object, something is seriously wrong.
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.14.0 #1
[    0.000000] Call Trace:
[    0.000000] [<c0003b64>] dump_backtrace+0x2c/0x3c
[    0.000000] Unable to handle kernel paging request at virtual address ffffffff
[    0.000000] Oops [#1]
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.14.0 #1
[    0.000000] epc : unflatten_dt_nodes+0x374/0x568
[    0.000000]  ra : unflatten_dt_nodes+0x36c/0x568
[    0.000000] epc : c03fbde0 ra : c03fbdd8 sp : c06a3db0
[    0.000000]  gp : c072e8d8 tp : c06a8740 t0 : 00000000
[    0.000000]  t1 : 000000cf t2 : 00000000 s0 : c06a3f30
[    0.000000]  s1 : c3ffeb20 a0 : ffffffff a1 : c0ef003c
[    0.000000]  a2 : 00000000 a3 : 00000001 a4 : c3ffeb50
[    0.000000]  a5 : ffffffff a6 : 000000ec a7 : 00000011
[    0.000000]  s2 : 00000000 s3 : c0ef003c s4 : c3ffea50
[    0.000000]  s5 : c3ffeafc s6 : c0ef005c s7 : c0ef0000
[    0.000000]  s8 : c0673c58 s9 : 00000000 s10: c3ffea50
[    0.000000]  s11: c3ffeb51 t3 : 00000000 t4 : 00000000
[    0.000000]  t5 : 00000001 t6 : ffffffff
[    0.000000] status: 00000100 badaddr: ffffffff cause: 0000000f
[    0.000000] [<c03fbde0>] unflatten_dt_nodes+0x374/0x568
[    0.000000] [<c03fc09c>] __unflatten_device_tree+0xc8/0x184
[    0.000000] [<c05aaa20>] unflatten_device_tree+0x3c/0x5c
[    0.000000] [<c0591c48>] setup_arch+0x100/0x558
[    0.000000] [<c058eee8>] start_kernel+0x8c/0x63c
[    0.000000] random: get_random_bytes called from oops_exit+0x48/0x94 with crng_init=0
[    0.000000] ---[ end trace 0000000000000000 ]---
[    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! ]---

Any hints? I’m using freshly built gateware nothing fancy ./make.py --build --board ulx3s --device LFE5U-85F but with binary blob of images. I’ll try with a fresh build of buildroot

[geertu]

https://github.com/litex-hub/linux/tree/litex-rebase is at v5.18-rc3, and working fine on my OrangeCrab.

[enjoy-digital]

The initial issue has been fixed thanks to @sebeaumont’s PRs, we can probably close this.