v2026.05.0
Alexander Shiyan
eagle.alexander923 at gmail.com
Wed May 20 06:42:39 PDT 2026
Hello Ahmad.
Yes, this caused by of_set_root_node(NULL);
The code uses this trick for reload correct aliases after load overlay.
https://github.com/MacroGroup/barebox/blob/macro/arch/arm/boards/diasom-rk3568/board.c#L495
ср, 20 мая 2026 г. в 16:38, Ahmad Fatoum <a.fatoum at pengutronix.de>:
>
> Hello,
>
> On 5/20/26 3:27 PM, Alexander Shiyan wrote:
> > Hello Sascha.
> >
> > Yes, that's how it works.
> >
> > The new version adds a different trap, but it's most likely a board
> > issue; I'll investigate.
>
> Let me know what you find out. I assume that the write of
> $barebox,root-node failed, but I am at loss why.
>
> If your board code available publicly?
>
> Cheers,
> Ahmad
>
> >
> > Thanks!
> >
> >> rockchip-dmc: rockchip_sdram_size(reg2=1000ea01, reg3=30000031)
> > rockchip-dmc: rank 2 cs0_col 10 cs1_col 10 bk 3 cs0_row 17 cs1_row 17
> > bw 2 row_3_4 0
> > rockchip-dmc: rk3568_ram_sizes() = 8589934592
> > uncompress.c: memory at 0x00a00000, size 0xef600000
> > endmem = 0xf0000000
> > arm_mem_optee = 0xee000000+0x02000000
> > arm_mem_scratch = 0xedff8000+0x00008000
> > arm_mem_stack = 0xedff0000+0x00008000
> > arm_mem_ttb = 0xedf80000+0x00040000
> > arm_mem_barebox_image = 0xedc00000+0x00400000
> > arm_mem_early_malloc = 0xedbe0000+0x00020000
> > membase = 0x00a00000+0xef600000
> > mmu: enabling MMU, ttb @ 0xedf80000
> > mmu: __arch_remap_range: 0x00000000+0x8000000000 type UNCACHED
> > mmu: __arch_remap_range: 0x8000000000+0x8000000000 type UNCACHED
> > mmu: __arch_remap_range: 0x00a00000+0xef600000 type RWX
> > mmu: __arch_remap_range: 0x08400000+0x2000000 type FAULT
> > mmu: __arch_remap_range: 0x00b00000+0x60000 type RWX
> > uncompress.c: uncompressing barebox ELF at 0x0000000000b60680 (size
> > 0x000737a4) to 0xedc00000 (uncompressed size: 0x001bb598)
> > uncompress.c: relocating ELF in place
> > In-place ELF relocation: text_vaddr=0x0, text_offset=0x10000,
> > load_addr=00000000edc00000, offset=0xedc10000
> > In-place ELF relocation completed successfully
> > pbl-mmu: Setting up MMU from ELF segments
> > pbl-mmu: Segment 0 not page-aligned, rounding
> > pbl-mmu: Segment 0: addr=0xedc10000 size=0x000b6000 flags=0x5 [R-X] ->
> > mmu_flags=0x3
> > mmu: __arch_remap_range: 0xedc10000+0xb6000 type CODE
> > pbl-mmu: Segment 1 not page-aligned, rounding
> > pbl-mmu: Segment 1: addr=0xedcc6000 size=0x000b9000 flags=0x4 [R--] ->
> > mmu_flags=0x4
> > mmu: __arch_remap_range: 0xedcc6000+0xb9000 type RO
> > pbl-mmu: Segment 3 not page-aligned, rounding
> > pbl-mmu: Segment 3: addr=0xedd7f000 size=0x00047000 flags=0x6 [RW-] ->
> > mmu_flags=0x1
> > mmu: __arch_remap_range: 0xedd7f000+0x47000 type CACHED
> > pbl-mmu: MMU setup from ELF complete
> > uncompress.c: jumping to ELF entry point at 0x00000000edcc2c9c
> > start.c: memory at 0x00a00000, size 0xef600000
> > start.c: initializing malloc pool at 0xadc10000 (size 0x40000000)
> > start.c: starting barebox...
> > initcall-> command_slice_init+0x0/0x3c
> > initcall-> globalvar_init+0x0/0x8c
> > initcall-> register_bus_class+0x0/0x20
> > initcall-> platform_init+0x0/0x1c
> > initcall-> mdio_bus_init+0x0/0x1c
> > initcall-> register_mii_class+0x0/0x20
> > initcall-> usb_bus_init+0x0/0x1c
> > initcall-> otg_bus_init+0x0/0x1c
> > initcall-> register_udc_class+0x0/0x20
> > initcall-> spi_bus_init+0x0/0x1c
> > initcall-> i2c_bus_init+0x0/0x1c
> > initcall-> register_i2c_adapter_class+0x0/0x20
> > initcall-> register_mmc_class+0x0/0x20
> > initcall-> register_fb_class+0x0/0x20
> > initcall-> register_backlight_class+0x0/0x20
> > initcall-> nvmem_init+0x0/0x14
> > initcall-> register_nvmem_class+0x0/0x20
> > initcall-> register_watchdog_class+0x0/0x20
> > initcall-> gpio_desc_alloc+0x0/0x24
> > initcall-> pci_bus_init+0x0/0x1c
> > initcall-> scmi_bus_driver_init+0x0/0x40
> > initcall-> register_phy_class+0x0/0x20
> > initcall-> register_eth_class+0x0/0x20
> > initcall-> fs_bus_init+0x0/0x1c
> > initcall-> defaultenv_init+0x0/0x6c
> > initcall-> console_common_init+0x0/0xac
> > initcall-> partitions_init+0x0/0x50
> > initcall-> genpd_bus_init+0x0/0x1c
> > initcall-> rk_clk_gate_link_driver_register+0x0/0x1c
> > initcall-> clk_rk3568_driver_register+0x0/0x1c
> > initcall-> clk_rk3588_driver_register+0x0/0x1c
> > initcall-> scmi_clocks_driver_register+0x0/0x1c
> > initcall-> gated_fixed_clk_driver_register+0x0/0x1c
> > initcall-> gpio_gate_clock_driver_register+0x0/0x1c
> > initcall-> syscon_driver_register+0x0/0x1c
> > initcall-> rockchip_gpio_driver_register+0x0/0x1c
> > initcall-> rockchip_pinctrl_driver_register+0x0/0x1c
> > initcall-> simple_pm_bus_driver_register+0x0/0x1c
> > initcall-> scmi_drv_register+0x0/0x1c
> > initcall-> scmi_reset_driver_register+0x0/0x1c
> > initcall-> arm_scmi_driver_register+0x0/0x1c
> > initcall-> scmi_power_domain_driver_register+0x0/0x1c
> > initcall-> aarch64_init_vectors+0x0/0x50
> > initcall-> of_arm_init+0x0/0x2c
> > deep-probe: enabled in device tree
> > initcall-> register_autoboot_vars+0x0/0x7c
> > initcall-> system_partitions_var_init+0x0/0x50
> > initcall-> register_env_vars+0x0/0x30
> > initcall-> mipi_dsi_bus_init+0x0/0x1c
> > initcall-> arm_arch_timer_driver_register+0x0/0x1c
> > initcall-> of_init_early_vars+0x0/0x8
> > initcall-> of_timer_init+0x0/0x20
> > initcall-> rockchip_pm_domain_drv_register+0x0/0x1c
> > initcall-> net_init+0x0/0x94
> > initcall-> init_fs+0x0/0x2c
> > initcall-> rockchip_init+0x0/0xe8
> > initcall-> ns16550_serial_driver_register+0x0/0x1c
> > initcall-> dos_partition_init+0x0/0x1c
> > initcall-> efi_partition_init+0x0/0x1c
> > initcall-> of_stdoutpath_init+0x0/0x28
> > Switch to console [cs0]
> >
> >
> > barebox 2026.05.0-00773-g4ba3c57b6144-dirty #5 Wed May 20 16:20:30 MSK 2026
> >
> >
> > Board: Diasom DS-RK3568-SMARC-EVB
> > start.c: memory at 0x00a00000, size 0xef600000
> > start.c: initializing malloc pool at 0xadc10000 (size 0x40000000)
> > start.c: starting barebox...
> > initcall-> command_slice_init+0x0/0x3c
> > initcall-> globalvar_init+0x0/0x8c
> > initcall-> register_bus_class+0x0/0x20
> > initcall-> platform_init+0x0/0x1c
> > initcall-> mdio_bus_init+0x0/0x1c
> > initcall-> register_mii_class+0x0/0x20
> > initcall-> usb_bus_init+0x0/0x1c
> > initcall-> otg_bus_init+0x0/0x1c
> > initcall-> register_udc_class+0x0/0x20
> > initcall-> spi_bus_init+0x0/0x1c
> > initcall-> i2c_bus_init+0x0/0x1c
> > initcall-> register_i2c_adapter_class+0x0/0x20
> > initcall-> register_mmc_class+0x0/0x20
> > initcall-> register_fb_class+0x0/0x20
> > initcall-> register_backlight_class+0x0/0x20
> > initcall-> nvmem_init+0x0/0x14
> > initcall-> register_nvmem_class+0x0/0x20
> > initcall-> register_watchdog_class+0x0/0x20
> > initcall-> gpio_desc_alloc+0x0/0x24
> > initcall-> pci_bus_init+0x0/0x1c
> > initcall-> scmi_bus_driver_init+0x0/0x40
> > initcall-> register_phy_class+0x0/0x20
> > initcall-> register_eth_class+0xinitcall-> of_probe_memory+0x0/0x60
> > initcall-> rockchip_dmc_driver_init+0x0/0x324
> > rockchip-dmc memory-controller.of: Detected memory size: 0x200000000
> > initcall-> __image_start+0x0/0x74
> > initcall-> mem_register_barebox+0x0/0x4c
> > initcall-> of_reserved_mem_walk+0x0/0x1bc
> > initcall-> mmu_init+0x0/0x1e0
> > initcall-> mem_malloc_resource+0x0/0xdc
> > initcall-> reset_source_init+0x0/0x50
> > initcall-> usbgadget_globalvars_init+0x0/0x44
> > initcall-> bootsource_init+0x0/0x40
> > initcall-> usb_udc_init+0x0/0x20
> > initcall-> rockchip_spi_driver_register+0x0/0x1c
> > initcall-> rk3x_i2c_driver_register+0x0/0x1c
> > initcall-> rk808_spi_driver_register+0x0/0x28
> > initcall-> rk808_i2c_driver_register+0x0/0x28
> > initcall-> regulator_fixed_driver_register+0x0/0x1c
> > initcall-> rockchip_usb2phy_driver_register+0x0/0x1c
> > initcall-> rockchip_combphy_driver_register+0x0/0x1c
> > initcall-> rockchip_p3phy_driver_register+0x0/0x1c
> > initcall-> rk_udphy_driver_register+0x0/0x1c
> > initcall-> rockchip_iodomain_driver_register+0x0/0x1c
> > initcall-> digest_hmac_initcall+0x0/0x44
> > initcall-> sha1_digest_register+0x0/0x1c
> > initcall-> sha256_digest_register+0x0/0x1c
> > initcall-> ext_init+0x0/0x1c
> > initcall-> ramfs_init+0x0/0x1c
> > initcall-> tftp_init+0x0/0x38
> > initcall-> nfs_init+0x0/0x5c
> > initcall-> fat_init+0x0/0x1c
> > initcall-> diasom_rk3568_driver_register+0x0/0x1c
> > initcall-> diasom_rk3588_driver_register+0x0/0x1c
> > initcall-> psci_driver_register+0x0/0x1c
> > initcall-> arm_request_stack+0x0/0x4c
> > initcall-> mount_root+0x0/0x74
> > initcall-> binfmt_sh_init+0x0/0x1c
> > initcall-> binfmt_uimage_init+0x0/0x1c
> > initcall-> png_init+0x0/0x1c
> > initcall-> extlinux_init+0x0/0x1c
> > initcall-> of_kernel_init+0x0/0x28
> > initcall-> console_ctrlc_init+0x0/0x30
> > initcall-> firmware_init+0x0/0x38
> > initcall-> bootdef_entry_init+0x0/0x1c
> > initcall-> fastboot_globalvars_init+0x0/0x12c
> > initcall-> genphy_driver_register+0x0/0x1c
> > initcall-> realtek_drvs_register+0x0/0x20
> > initcall-> mdio_gpio_driver_register+0x0/0x1c
> > initcall-> rk_gmac_driver_register+0x0/0x1c
> > initcall-> rtl8169_eth_driver_register+0x0/0x1c
> > initcall-> usb_hub_init+0x0/0x1c
> > initcall-> dwc3_driver_register+0x0/0x1c
> > initcall-> usb_stor_init+0x0/0x1c
> > initcall-> ehci_driver_register+0x0/0x1c
> > initcall-> xhci_driver_register+0x0/0x1c
> > initcall-> gsermod_init+0x0/0x1c
> > initcall-> acmmod_init+0x0/0x1c
> > initcall-> dfumod_init+0x0/0x1c
> > initcall-> fastbootmod_init+0x0/0x1c
> > initcall-> umsmod_init+0x0/0x1c
> > initcall-> onboard_dev_driver_register+0x0/0x1c
> > initcall-> pca954x_driver_register+0x0/0x28
> > initcall-> rk_sdhci_driver_register+0x0/0x1c
> > initcall-> dw_mmc_driver_register+0x0/0x1c
> > initcall-> backlight_pwm_of_driver_register+0x0/0x1c
> > initcall-> vop2_driver_register+0x0/0x1c
> > initcall-> dw_hdmi_rockchip_driver_register+0x0/0x1c
> > initcall-> dw_mipi_dsi_rockchip_driver_register+0x0/0x1c
> > initcall-> led_gpio_of_driver_register+0x0/0x1c
> > initcall-> at24_driver_register+0x0/0x28
> > initcall-> rockchip_pwm_driver_register+0x0/0x1c
> > initcall-> sram_driver_register+0x0/0x1c
> > initcall-> mem_init+0x0/0x90
> > initcall-> nvmem_cells_driver_register+0x0/0x1c
> > initcall-> rmem_driver_register+0x0/0x1c
> > initcall-> rockchip_otp_driver_register+0x0/0x1c
> > initcall-> dw_wdt_driver_register+0x0/0x1c
> > initcall-> pca953x_driver_register+0x0/0x28
> > initcall-> rk_rng_driver_register+0x0/0x1c
> > initcall-> of_partition_init+0x0/0x48
> > initcall-> of_overlay_init+0x0/0x104
> > initcall-> fan53555_regulator_driver_register+0x0/0x28
> > initcall-> rk808_regulator_driver_register+0x0/0x1c
> > initcall-> rockchip_pcie_driver_register+0x0/0x1c
> > initcall-> inno_dsidphy_driver_register+0x0/0x1c
> > initcall-> rockchip_saradc_driver_register+0x0/0x1c
> > initcall-> nvme_driver_register+0x0/0x1c
> > initcall-> gpio_restart_driver_register+0x0/0x1c
> > initcall-> prng_init+0x0/0x40
> > initcall-> null_init+0x0/0x40
> > initcall-> full_init+0x0/0x40
> > initcall-> zero_init+0x0/0x40
> > initcall-> md5_digest_register+0x0/0x1c
> > initcall-> sha224_digest_register+0x0/0x1c
> > initcall-> init_net_poll+0x0/0x24
> > initcall-> netconsole_init+0x0/0x12c
> > netconsole: registered as netconsole-1
> > initcall-> diasom_rk3568_init+0x0/0x448
> > CPU version 0x03 detected.
> > rk808 rk8090: chip id: 0x8090
> > vcc_ddr: Bringing 500000uV into 1100000-1100000uV
> > vdd_npu: Bringing 500000uV into 850000-850000uV
> > vdda0v9_image: Bringing 600000uV into 900000-900000uV
> > vcca1v8_image: Bringing 600000uV into 1800000-1800000uV
> > rockchip_saradc fe720000.saradc at fe720000.of: registered as aiodev0
> > SOM version 2+ detected.
> > SMARC version 3 used.
> > arm-scmi firmware:scmi.of: SCMI Protocol v2.0 'rockchip:' Firmware version 0x0
> > psci psci.of: detected version 1.1
> > xHCI xHCI0: USB XHCI 1.10
> > xHCI xHCI1: USB XHCI 1.10
> > ehci fd800000.usb at fd800000.of: USB EHCI 1.00
> > ehci fd880000.usb at fd880000.of: USB EHCI 1.00
> > fan53555-regulator tcs45250: FAN53555 Option[12] Rev[15] Detected!
> > mdio_bus: miibus0: probed
> > dwhdmi-rockchip fe0a0000.hdmi at fe0a0000.of: registered I2C bus driver
> > dwhdmi-rockchip fe0a0000.hdmi at fe0a0000.of: Detected HDMI TX controller
> > v2.11a with HDCP (DWC HDMI 2.0 TX PHY)
> > rockchip-vop2 fe040000.vop at fe040000.of: Registered fb0 on VP0, window
> > Smart0-win0, type primary
> > rockchip-vop2 fe040000.vop at fe040000.of: Registered fb0_0 on VP0,
> > window Smart1-win0, type overlay
> > rockchip-vop2 fe040000.vop at fe040000.of: Registered fb0_1 on VP0,
> > window Esmart1-win0, type overlay
> > rockchip-vop2 fe040000.vop at fe040000.of: Registered fb0_2 on VP0,
> > window Esmart0-win0, type overlay
> > rockchip-dw-pcie 3c0000000.pcie at fe260000.of: Phy link never came up
> > dw_mmc fe2b0000.mmc at fe2b0000.of: registered as mmc1
> > mmc1: detected SD card version 3.0
> > WARNING: mmc1: GPT:Primary header thinks Alt. header is not at the end
> > of the disk.
> > WARNING: mmc1: GPT:2669671 != 62333951
> > WARNING: mmc1: GPT:Alternate GPT header not at the end of the disk.
> > WARNING: mmc1: GPT:2669671 != 62333951
> > mmc1: GPT: will repair later if global.system.gpt_refresh=1
> > mmc1: registered mmc1
> > rk3568-dwcmshc-sdhci fe310000.mmc at fe310000.of: registered as mmc0
> > mmc0: detected MMC card version 5.1
> > mmc0: registered mmc0.boot0
> > mmc0: registered mmc0.boot1
> > mmc0: registered mmc0
> > i2c2: Added multiplexed i2c bus 6
> > i2c2: Added multiplexed i2c bus 7
> > i2c2: Added multiplexed i2c bus 8
> > i2c2: Added multiplexed i2c bus 9
> > pca954x pca95460: registered 4 multiplexed busses for I2C switch
> > phy6: lane number 0, val 1
> > phy6: lane number 1, val 2
> > phy6: bifurcation enabled
> > rockchip-dw-pcie 3c0800000.pcie at fe280000.of: Phy link never came up
> > mdio_bus: miibus1: probed
> > mdio_bus: miibus2: probed
> > PANIC: unable to handle NULL pointer dereference at address 0x0000000000000018
> > DABT (current EL) (ESR 0x9600000b)
> > elr: 00000000edc6ff00 lr : 00000000edc6ff00
> > x0 : 00000000edcd5c17 x1 : 00000000edd7f000
> > x2 : 0000000000000000 x3 : 0000000000000030
> > x4 : 0000000000000000 x5 : 00000000edff7d18
> > x6 : 0000000000000002 x7 : 0000000000000000
> > x8 : 00000000aff3aa90 x9 : 6f2e726f74616c75
> > x10: 63702d3376336363 x11: 6b6c632d30336569
> > x12: 00000000edff7b30 x13: 00000000ffffffc8
> > x14: 0000000000000001 x15: 0000000000000000
> > x16: 00000000edccb95f x17: 0000000000000000
> > x18: 000000000000000a x19: 00000000aff3aa60
> > x20: 0000000000000000 x21: 0000000000000010
> > x22: 0000000000000000 x23: 00000000edcd5c17
> > x24: 0000000000000000 x25: 00000000f0000000
> > x26: 00000000000737a4 x27: 00000000001bb598
> > x28: 0000000000000000 x29: 00000000edff7dd0
> >
> > Call trace:
> > [<edc6ff00>] (__of_new_property+0x38/0x74) from [<edc6ff94>]
> > (of_new_property+0x58/0x6c)
> > [<edc6ff94>] (of_new_property+0x58/0x6c) from [<edc700d0>]
> > (of_property_write_bool+0x5c/0x68)
> > [<edc700d0>] (of_property_write_bool+0x5c/0x68) from [<edc7013c>]
> > (of_set_root_node+0x60/0x88)
> > [<edc7013c>] (of_set_root_node+0x60/0x88) from [<edcc0854>]
> > (diasom_rk3568_init+0x230/0x448)
> > [<edcc0854>] (diasom_rk3568_init+0x230/0x448) from [<edc125f4>]
> > (start_barebox+0x84/0xa4)
> > [<edc125f4>] (start_barebox+0x84/0xa4) from [<edcc2d74>]
> > (barebox_non_pbl_start+0xd8/0xe8)
> > [<edcc2d74>] (barebox_non_pbl_start+0xd8/0xe8) from [<00b02cfc>] (0xb02cfc)
> > [<00b02cfc>] (0xb02cfc) from [<00b020c4>] (0xb020c4)
> >
> > ### ERROR ### Please RESET the board ###
> >
> > ср, 20 мая 2026 г. в 16:17, Sascha Hauer <s.hauer at pengutronix.de>:
> >>
> >> On 2026-05-20 15:11, Alexander Shiyan wrote:
> >>> Here is output with lowlevel debug:
> >>> DDR 03ea844c5d typ 24/09/03-10:42:57,fwver: v1.23
> >>> In
> >>> ...
> >>> out
> >>>> rockchip-dmc: rockchip_sdram_size(reg2=1000ea01, reg3=30000031)
> >>> rockchip-dmc: rank 2 cs0_col 10 cs1_col 10 bk 3 cs0_row 17 cs1_row 17
> >>> bw 2 row_3_4 0
> >>> rockchip-dmc: rk3568_ram_sizes() = 8589934592
> >>> mmu: enabling MMU, ttb @ 0xedf80000
> >>> mmu: __arch_remap_range: 0x00000000+0x8000000000 type UNCACHED
> >>> mmu: __arch_remap_range: 0x8000000000+0x8000000000 type UNCACHED
> >>> mmu: __arch_remap_range: 0x00a00000+0xef600000 type RWX
> >>> mmu: __arch_remap_range: 0xee000000+0x2000000 type FAULT
> >>> mmu: __arch_remap_range: 0x00b00000+0x60000 type RWX
> >>
> >> Damn. I introduced this:
> >>
> >> pbl_malloc_init(membase[0] + memsize[0] - PBL_MALLOC_SIZE, PBL_MALLOC_SIZE);
> >>
> >> This exactly ends up in the area marked as FAULT above (reserved for
> >> OP-TEE).
> >>
> >> Try this:
> >>
> >> pbl_malloc_init(membase[0] + memsize[0] - OPTEE_SIZE - PBL_MALLOC_SIZE,
> >> PBL_MALLOC_SIZE);
> >>
> >> You have XZ as image compression, right?
> >>
> >> The rockchip_v8_defconfig uses LZ4 which doesn't need any dynamic memory
> >> for decompression. I tested with XZ as well, but the configuration I
> >> used for this test doesn't have OP-TEE enabled, so the faulting area was
> >> not there.
> >>
> >> Sascha
> >>
> >> --
> >> Pengutronix e.K. | |
> >> Steuerwalder Str. 21 | http://www.pengutronix.de/ |
> >> 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
> >> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
> >
> >
>
> --
> Pengutronix e.K. | |
> Steuerwalder Str. 21 | http://www.pengutronix.de/ |
> 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
>
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