[REGRESSION] Out of memory error: unable to boot on imx8mp/imx8mm

[Francesco Dolcini]

Hello,

On Mon, Dec 16, 2024 at 11:28:42AM -0300, João Paulo Gonçalves wrote:
> Hi Sughosh,
> 
> > Can you show the output of bdinfo. And also print the value of ram_top
> > while booting the board.
> >
> 
> Below are ram_top and bdinfo:

We briefly discussed this off list, what is likely happen is that our
heap is after 0xFFFFFFFF, or said in a simpler way in the 64-bit address
space, while ram top is at the 4GB boundary.

The solution seems to either move the heap down or move ram top up.


> 
> U-Boot 2025.01-rc4-00025-g4ff8ecd9b14e-dirty (Dec 16 2024 - 11:21:18 -0300)
> 
> CPU:   Freescale i.MX8MP[8] rev1.1 1600 MHz (running at 1200 MHz)
> CPU:   Industrial temperature grade (-40C to 105C) at 51C
> Reset cause: POR
> DRAM:  Ram top: FFFFFFFF
> 8 GiB
> ...
> Verdin iMX8MP # bdinfo
> boot_params = 0x0000000000000000
> DRAM bank   = 0x0000000000000000
> -> start    = 0x0000000040000000
> -> size     = 0x00000000c0000000
> DRAM bank   = 0x0000000000000001
> -> start    = 0x0000000100000000
> -> size     = 0x0000000140000000
> flashstart  = 0x0000000000000000
> flashsize   = 0x0000000000000000
> flashoffset = 0x0000000000000000
> baudrate    = 115200 bps
> relocaddr   = 0x00000000ffece000
> reloc off   = 0x00000000bfcce000
> Build       = 64-bit
> current eth = ethernet at 30bf0000
> ethaddr     = 6e:79:12:b6:72:24
> IP addr     = <NULL>
> fdt_blob    = 0x00000000ffab8450
> lmb_dump_all:
>  memory.count = 0x1
>  memory[0]      [0x40000000-0x23fffffff], 0x200000000 bytes, flags: none
>  reserved.count = 0x1
>  reserved[0]    [0xffffffff-0x23fffffff], 0x140000001 bytes, flags: no-overwrite
> devicetree  = separate
> arch_number = 0x0000000000000000
> TLB addr    = 0x00000000fffd0000
> irq_sp      = 0x00000000ffab8440
> sp start    = 0x00000000ffab8440
> Early malloc usage: d620 / 10000
> 
> 
> Best Regards,
> João Paulo Gonçalves