dtoverlay=vc4-fkms-v3d,cma-256 Telling the kernel to allocate/reserve 256MB of contiguous memory for DMA operations is not a sensible thing to do on a device that only has 512MB of memory available.
** Changed in: linux-raspi (Ubuntu Focal) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi in Ubuntu. https://bugs.launchpad.net/bugs/1878432 Title: rpi3a+ does not boot with core20 Status in pi2-kernel-snap: New Status in snapd: New Status in linux-raspi package in Ubuntu: New Status in linux-raspi source package in Focal: Invalid Bug description: MMC: mmc@7e202000: 0, mmcnr@7e300000: 1 Loading Environment from FAT... *** Warning - bad CRC, using default environment RPI3a+ on core 20 from http://cdimage.ubuntu.com/ubuntu-core/20/beta/20200513.2/ (also tested the previous - 20200512.3) are not booting. This is for both arm64 and armhf. This is the serial log for as far as it gets: In: serial Out: serial Err: serial Net: No ethernet found. starting USB... Bus usb@7e980000: scanning bus usb@7e980000 for devices... 5 USB Device(s) found scanning usb for storage devices... 1 Storage Device(s) found ## Warning: Input data exceeds 1048576 bytes - truncated ## Info: input data size = 1048578 = 0x100002 Hit any key to stop autoboot: 0 switch to partitions #0, OK mmc0 is current device Scanning mmc 0:1... Found U-Boot script /boot.scr 4638 bytes read in 2 ms (2.2 MiB/s) ## Executing script at 02400000 4096 bytes read in 3 ms (1.3 MiB/s) 8378005 bytes read in 363 ms (22 MiB/s) Total of 1 halfword(s) were the same Decompressing kernel... Uncompressed size: 25905664 = 0x18B4A00 33637043 bytes read in 1448 ms (22.2 MiB/s) Booting Ubuntu (with booti) from mmc 0:... ## Flattened Device Tree blob at 02600000 Booting using the fdt blob at 0x2600000 Using Device Tree in place at 0000000002600000, end 000000000260a065 Starting kernel ... To manage notifications about this bug go to: https://bugs.launchpad.net/pi2-kernel-snap/+bug/1878432/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp