I have a macchiatobin Armada 8040 based system with an old AMD Firestream 9250 video card booting via UEFI EDKII.
The system has worked quite well up until recently. With kernels 4.15.3-300 and 4.15.4-300 the system
[ 4.134847] SError Interrupt on CPU1, code 0xbf000000 -- SError
[ 4.134851] CPU: 1 PID: 334 Comm: systemd-udevd Not tainted 4.15.4-300.fc27.aarch64 #1
[ 4.134852] Hardware name: Marvell Armada 8040 MacchiatoBin/Armada 8040 MacchiatoBin, BIOS EDK II Oct 10 2017 [ 4.134854] pstate: 80400005 (Nzcv daif +PAN -UAO)
[ 4.134996] pc : r100_io_wreg+0x68/0x80 [radeon]
[ 4.135123] lr : cail_ioreg_write+0x38/0x48 [radeon]
[ 4.135123] sp : ffff00001247b4f0
[ 4.135125] x29: ffff00001247b4f0 x28: 000000000000b112
[ 4.135127] x27: 000000000000b111 x26: 0000000000000020
[ 4.135129] x25: 00000000ffffffff x24: ffffb19668d53900
[ 4.135131] x23: 0000000000000002 x22: 0000000000008001
[ 4.135132] x21: 0000000000008001 x20: 0000000000000034
[ 4.135134] x19: ffffb196671ec000 x18: 0000000000000018
[ 4.135135] x17: 0000000000000000 x16: 0000000000000000
[ 4.135137] x15: ffffffffffffffff x14: ffffffffffff0000
[ 4.135138] x13: ffffffffffffffff x12: ffff1b4a9ce35000
[ 4.135140] x11: 0000000000000000 x10: ffff1b4a9cfe3000
[ 4.135141] x9 : 0000000000000000 x8 : ffffb19667263e80
[ 4.135143] x7 : ffff01f28ed85618 x6 : ffff01f28ed85150
[ 4.135144] x5 : 000000000000b5bf x4 : 0000000000000002
[ 4.135146] x3 : ffff01f28ec847d0 x2 : 0000000000000100
[ 4.135147] x1 : 0000000000000034 x0 : ffff7dfffee01034
[ 4.135150] Kernel panic - not syncing: Asynchronous SError Interrupt
| | EFI stub: Booting Linux Kernel... EFI stub: Using DTB from configuratio... |
|
|