I've checked the code, yes, now anck 4.19 supports pidfd_open but not
pidfd_send_signal.
When cherry-pick features from upstream, it depends on requirements.
So if you want anck 4.19 supports pidfd_send_signal, please submit a
requirement, thanks.
Joseph
On 7/25/22 5:20 PM, lywjk(a)outlook.com wrote:
> 内核：Linux g2-alive-hz-03 4.19.91-26.an8.x86_64 #1 SMP Tue May 24 13:10:09 CST 2022 x86_64 x86_64 x86_64 GNU/Linux
> AnolisOS 8.4 ANCK内核，8.6也一样。
>
> crun开发者的回复：
> I am fine to add a workaround, but I'd like to understand what is going on.
> What system are you running?
> It seems your kernel has support for pidfd_open but not for pidfd_send_signal.
> pidfd_open was added to Linux v5.3 while pidfd_send_signal to v5.1
>
> 是否是ANCK内核添加了5.3的特性又没有添加5.1的特性呢？
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