Re: [PATCH v3] drivers: hv: vmbus: Use kthread for vmbus interrupts on PREEMPT_RT

[Jan Kiszka]

On 18.03.26 12:21, Sebastian Andrzej Siewior wrote:
> On 2026-03-18 12:03:03 [+0100], Jan Kiszka wrote:
>>> Either way, that add_interrupt_randomness() should be moved to
>>> sysvec_hyperv_callback() like it has been done for
>>> sysvec_hyperv_stimer0(). It should be invoked twice now if gets there
>>> via vmbus_percpu_isr().
>>
>> No, this would degrade arm64.
> 
> Okay. So why does this needs to be done for _this_ per-CPU IRQ on ARM64
> but not for the others? What does it make so special.
> 

See the other thread:
https://lore.kernel.org/lkml/SN6PR02MB41573332BF202DAE0AF79ED1D441A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/

Jan

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