On Fri, 26 Aug 2022 at 21:10, Mikulas Patocka <mpatocka@xxxxxxxxxx> wrote: > > > > On Fri, 26 Aug 2022, Ard Biesheuvel wrote: > > > Could you try booting with earlycon? > > > > Just 'earlycon' and if that does not help, > > It doesn't help. > > > 'earlycon=uart8250,mmio32,<uart PA>' [IIRC, mcbin uses 16550 > > compatible UARTs, right?] > > mcbin is the host system (running a stable kernel fine). The crash happens > in a virtual machine. The vm uses /dev/ttyAMA0 as a console: > > Serial: AMBA PL011 UART driver > 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 45, base_baud = 0) is a PL011 rev1 > printk: console [ttyAMA0] enabled > > I tried earlycon=pl011,mmio32,0x9000000 - but it doesn't help, it hangs > without printing anything. > If you are using pl011, you should drop the mmio32 - it only takes a physical address (and optionally baud rate etc, but QEMU doesn't need those)