On Tue, 17 Dec 2024 at 00:33, Francesco Dolcini <[email protected]> wrote: > > 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.
I am not sure I understand. Isn't the heap memory part of the U-Boot image, meaning it will always be below the ram_top? How do you have this configuration where the heap is above ram_top? Can you point me to the code where the heap is getting set above ram_top. -sughosh > > > > > > 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@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
