On 11/27/25 12:03, Michael Opdenacker wrote:
Hi Gyorgy
On 11/27/25 11:46, Gyorgy Sarvari wrote:
On 11/27/25 11:20, Michael Opdenacker via lists.openembedded.org wrote:
Greetings,
I'm getting the same issue trying a master build on several RISC-V
boards:
ERROR: linux-milkv-duo-dev-1.0-r0 do_kernel_metadata: Feature
'arch/riscv/tunes/riscv-isa-clear.scc' not found, this will cause
configuration failures.
ERROR: linux-milkv-duo-dev-1.0-r0 do_kernel_metadata: Check the SRC_URI
for meta-data repositories or directories that may be missing
ERROR: linux-milkv-duo-dev-1.0-r0 do_kernel_metadata: Set
KERNEL_DANGLING_FEATURES_WARN_ONLY to ignore this issue
OK, I can set
KERNEL_DANGLING_FEATURES_WARN_ONLY = "1"
but is this a clean solution?
Where are all the arch/riscv/tunes/riscv-isa-*.scc files supposed to
be?
I didn't manage to find them anywhere...
Do you have the yocto-kernel-cache[1] repo in your SRC_URI? The scc
files come from there
[1]:
https://git.yoctoproject.org/yocto-kernel-cache/tree/arch/riscv/tunes
Ho, thanks! That was exactly what I needed.
I will add these to my kernel recipes.
Interestingly, the Linux 6.18-rc7 kernel on my OrangePi RV2 board hates
the change.
It's not completely crashing, but many devices get initialized with the
same kind of error:
"device non-coherent but no non-coherent operations supported"
0.111641] ------------[ cut here ]------------
[ 0.111652] spacemit,k1-ccu d4090000.clock-controller: device
non-coherent but no non-coherent operations supported
[ 0.111659] WARNING: CPU: 0 PID: 1 at
/usr/src/kernel/arch/riscv/mm/dma-noncoherent.c:139
arch_setup_dma_ops+0x96/0xfc
[ 0.111673] Modules linked in:
[ 0.111682] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G S 6.18.0-rc7
#1 NONE
[ 0.111690] Tainted: [S]=CPU_OUT_OF_SPEC
[ 0.111693] Hardware name: OrangePi RV2 (DT)
[ 0.111696] epc : arch_setup_dma_ops+0x96/0xfc
[ 0.111703] ra : arch_setup_dma_ops+0x96/0xfc
[ 0.111709] epc : ffffffff8001ea02 ra : ffffffff8001ea02 sp :
ffffffc600043b70
[ 0.111713] gp : ffffffff81a1ae08 tp : ffffffd700230000 t0 :
ffffffff81829520
[ 0.111717] t1 : ffffffff8181c228 t2 : 2d2d2d2d2d2d2d2d s0 :
ffffffc600043b90
[ 0.111720] s1 : ffffffd700b79c10 a0 : 0000000000000067 a1 :
00000000fffff264
[ 0.111724] a2 : 0000000000000000 a3 : 00000000fffff264 a4 :
0000000000000000
[ 0.111728] a5 : 0000000000000000 a6 : 0000000000000004 a7 :
0000000000000000
[ 0.111731] s2 : 0000000000000000 s3 : 0000000000000000 s4 :
0000000000000000
[ 0.111734] s5 : ffffffff80e30800 s6 : 0000000000000008 s7 :
0000000000000000
[ 0.111738] s8 : 0000000000000143 s9 : 0000000000000000 s10:
0000000000000000
[ 0.111742] s11: 0000000000000000 t3 : 0000000000000070 t4 :
00007fffffffffff
[ 0.111744] t5 : 00007fffffffffff t6 : ffffffff81a3de07
[ 0.111747] status: 0000000200000120 badaddr: 0000000000000000 cause:
0000000000000003
[ 0.111752] [<ffffffff8001ea02>] arch_setup_dma_ops+0x96/0xfc
[ 0.111761] [<ffffffff80918f30>] of_dma_configure_id+0x94/0x208
[ 0.111770] [<ffffffff80720050>] platform_dma_configure+0xa4/0xac
[ 0.111778] [<ffffffff8071d8cc>] really_probe+0x54/0x22c
[ 0.111785] [<ffffffff8071db00>] __driver_probe_device+0x5c/0xd4
[ 0.111791] [<ffffffff8071dc3e>] driver_probe_device+0x2e/0xf4
[ 0.111796] [<ffffffff8071de66>] __driver_attach+0x6e/0x14c
[ 0.111802] [<ffffffff8071bae0>] bus_for_each_dev+0x60/0xb0
[ 0.111807] [<ffffffff8071d432>] driver_attach+0x1a/0x24
[ 0.111813] [<ffffffff8071cc9a>] bus_add_driver+0xca/0x1d8
[ 0.111820] [<ffffffff8071ebea>] driver_register+0x3e/0xdc
[ 0.111827] [<ffffffff8071fde4>] __platform_driver_register+0x1c/0x24
[ 0.111834] [<ffffffff80c2ee0a>] k1_ccu_driver_init+0x1a/0x24
[ 0.111843] [<ffffffff8000f8aa>] do_one_initcall+0x4e/0x1b8
[ 0.111849] [<ffffffff80c012ac>] kernel_init_freeable+0x264/0x2e4
[ 0.111858] [<ffffffff80b761b8>] kernel_init+0x1c/0x144
[ 0.111862] [<ffffffff800111b6>] ret_from_fork_kernel+0xe/0x60
[ 0.111870] [<ffffffff80b8081e>] ret_from_fork_kernel_asm+0x16/0x18
[ 0.111877] ---[ end trace 0000000000000000 ]---
Is this expected?
Cheers
Michael.
--
Michael Opdenacker
Root Commit
Yocto Project and OpenEmbedded Training course - Learn by doing:
https://rootcommit.com/training/yocto/
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