Here is simplified qemu command:
qemu-system-aarch64 \
-display none \
-kernel ./arch/arm64/boot/Image \
-M virt -cpu cortex-a57 -s -S
In a separate terminal start arm64 cross debugger:
$ aarch64-unknown-linux-gnu-gdb ./vmlinux
...
Reading symbols from ./vmlinux...done.
(gdb) target remote :1234
Remote debugging using :1234
0x0000000040000000 in ?? ()
(gdb) c
Continuing.
^C
(gdb) lx-dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.14.0-rc4_pt_study-00136-gbed2c89768ba
(soleen@xakep) (gcc version 7.1.0 (crosstool-NG
crosstool-ng-1.23.0-90-g81327dd9)) #1 SMP PREEMPT Fri Oct 13 11:24:46
EDT 2017
... until the panic message is printed ...
Thank you,
Pavel
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