[Arm-dev] kernel 4.11.0-22.el7.2.aarch64 does not boot on ThunderX

Itaru Kitayama itaru.kitayama at riken.jp
Tue Oct 10 22:49:16 UTC 2017

Hi Jim, all,

Red Hat says BIOS T43 is a production release at the moment, we're on 
the same version,
so I exclude that for now.

Upstream kernel, v4.13 configured in using config- 
boots on the same
HW. Have you touched the config when changing the kernel onto 4.11?

I think still, if you don't mind sharing the exact HW used for the 
CentOS 7 Altarch validations,
would be greatly helpful to narrow down this issue.


On 10/11/17 1:41 AM, Jim Perrin wrote:
> On 10/10/2017 01:30 AM, Itaru Kitayama wrote:
>> Hi,
>> In our attempt upgrading from 4.5.0-25.el7.aarch64 to the 4.11-based kernel
>> we see the latter does not boot on ThunderX.
>> Here's the HW details:
>> http://b2b.gigabyte.com/ARM-Server/R150-T62-rev-100#support-manual
>> The BIOS release is T43. (According Red Hat, they've been testing fine
>> their
>> 1 socket GIGABYTE server with their RHEL 7 kernels.)
> This is usually down to firmware issues, but we don't test every
> possible hardware/firmware variation to validate.
>> I am wondering what ThunderX platform CentOS has been using for testing,
>> and
>> the list happens to have the above HW.
>> The boot process seems to be stuck as soon as system prints our EFI stub
>> messages.
>> No messages from the kernel.
>> Is the CentOS Alt architecture group going to release a 4.12 or .13
>> kernel soon?
> We'll likely match what RH does for their aarch64/arm64 support.

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