Re: [OE-core][PATCH v2 1/2] qemu.bbclass: drop OLDEST_KERNEL reference

[Changqing Li <changqing.li@windriver.com>]

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On 12/30/21 9:21 PM, Richard Purdie wrote:
> [Please note: This e-mail is from an EXTERNAL e-mail address]
>
> On Thu, 2021-12-30 at 16:51 +0800, Changqing Li wrote:
>> On 12/16/21 7:48 PM, Matt Madison wrote:
>>
>>> [Please note: This e-mail is from an EXTERNAL e-mail address]
>>>
>>> which is introducing task hash changes for some
>>> allarch package builds, and should no longer
>>> be needed with recent versions of qemu.
>>>
>>> Signed-off-by: Matt Madison <matt@madison.systems>
>>> ---
>>>   meta/classes/qemu.bbclass | 2 +-
>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/meta/classes/qemu.bbclass b/meta/classes/qemu.bbclass
>>> index 01a7b86ae1..333202b7c4 100644
>>> --- a/meta/classes/qemu.bbclass
>>> +++ b/meta/classes/qemu.bbclass
>>> @@ -54,7 +54,7 @@ def qemu_run_binary(data, rootfs_path, binary):
>>>   # this dance). For others (e.g. arm) a -cpu option is not necessary, since
>>> the
>>>   # qemu-arm default CPU supports all required architecture levels.
>>>
>>> -QEMU_OPTIONS = "-r ${OLDEST_KERNEL} ${@d.getVar("QEMU_EXTRAOPTIONS_%s" %
>>> d.getVar('PACKAGE_ARCH')) or ""}"
>>> +QEMU_OPTIONS = "${@d.getVar("QEMU_EXTRAOPTIONS_%s" %
>>> d.getVar('PACKAGE_ARCH')) or ""}"
>> Hi,
>> Latest yocto still take "CentOS 7.x" as Supported Linux Distributions. But
>> centos7 have kernel version 3.10.
>> But we have some archs, like aarch64, set OLDEST_KERNEL to 3.14. Without "-r
>> ${OLDEST_KERNEL}",
>> some recipes which will run qemu during configure or compile will failed with
>> error:
>> FATAL: kernel too old
>> How about add it back?
>>
> It was removed for a reason and believed to be no longer needed. Which version
> of qemu was this with?

For aarch64,  systemd do_configure  failed during run following command:

Running test binary command: 
tmp-glibc/work/cortexa72-wrs-linux/systemd/1_249.7-r0/meson-qemuwrapper 
tmp-glibc/work/cortexa72-wrs-linux/systemd/1_249.7-r0/build/meson-private/sanitycheckc_cross.exe

meson-qemuwrapper is wrapper of qemu-aarch64

tmp-glibc/work/cortexa72-wrs-linux/systemd/1_249.7-r0/recipe-sysroot-native/usr/bin/qemu-aarch64 
-version
*qemu-aarch64 version 6.2.0*
Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers

>
> Cheers,
>
> Richard
>

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