Hi Al,
Even with your .config the HEAD of acpi-topic-mustang does not boot with acpi=force. Here are the messages appear on the console:
EFI stub: Booting Linux Kernel... EFI stub: Using DTB from configuration table EFI stub: Exiting boot services and installing virtual address map... XhcClearBiosOwnership: called to clear BIOS ownership XhcClearBiosOwnership: called to clear BIOS ownership L3c Cache: 8MB
On 8/18/15 6:58 AM, Itaru Kitayama wrote:
Hi Al,
Where does it "stall"? What's the last message you see? And if
you're not
using earlycon, please do so; that will help determine how far the boot is getting.
If I boot it with acpi=force, no output. Does my usage below look correct?
GRUB_CMDLINE_LINUX="earlycon=uart8250,mmio32,0x1c021000 acpi=force console=ttyS0,115200 loglevel=7"
How were those checked?
In setup_arch() I was calling disable_acpi() right after the acpi_boot_table_init() call as that makes the system get to the prompt.
I am about to build the kernel with your .config and test it on one of Mustangs in the Linaro Austin lab. The Boot firmware version is 1.1.0-rh-0.15.
Itaru