Failed to alloc dma buffer

[SamWaters2000]

crashes with following, any advice?

ets Jun 8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:4832
load:0x40078000,len:16460
load:0x40080400,len:4
load:0x40080404,len:3504
entry 0x400805cc
Failed to alloc dma buffer
Guru Meditation Error: Core 1 panic'ed (StoreProhibited). Exception was unhandled.
A2 : 0x00000000 A3 : 0x00000001 A4 : 0x00000000 A5 : 0x000000a0
A6 : 0x000001e0 A7 : 0xb33fffff A8 : 0x00000000 A9 : 0x00000000
A10 : 0x0000001c A11 : 0x0000001a A12 : 0x00000000 A13 : 0xff000fff
A14 : 0xdfffffff A15 : 0xe0ffffff SAR : 0x0000001b EXCCAUSE: 0x0000001d
EXCVADDR: 0x00000000 LBEG : 0x40087a45 LEND : 0x40087a55 LCOUNT : 0xffffffff

[jonatansnd]

@bitluni
Also looking to find a solution to this. Trying to run the CompositeDACColorMode example on an ESP32 dev module with 8mb PSRAM. Because it's too cool.

Tried both on:
Platformio (pioarduino) using Arduino core 3.1.3 based on IDF 5.3.2.250210 (espressifs esp32)
Same on Arduino IDE

Tried switching cores and all different combinations probably totally unrelated to allocating the DMA buffer or descriptor. Huge App partition scheme, PSRAM enabled, 8MB flash size.

Downgrading to 3.0.7 it runs fine in Arduino IDE, which seems to be the last ESP32 Arduino core based on IDF 5.1.4. (might be a solution for you @SamWaters2000 ). But not in Platformio :/

I'm however really hoping to avoid rewriting too much code in my project that is dependent on newer conventions, or at least find an answer to why it won't allocate the gd DMA buffers, but then again I understand the frustration of going back to adapt ESP32lib just because they're constantly refactoring things :)