Re: [PATCH v3 5/7] efi/runtime-wrappers: bound the wait for EFI runtime service calls

Breno Leitao <[email protected]> Fri, 10 Jul 2026 03:30:18 -0700
Newsgroups org.kernel.vger.linux-efi,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
Hello Yeoreum,

On Thu, Jul 09, 2026 at 07:56:18AM +0100, Yeoreum Yun wrote:
> 
> One of my concern is for the UpdateCapsule runtime service.
> It might have a case where takes more then 2 mins and there's one
> RFC to support a runtime capsule update for arm platform [1].

I'm not familiar with UpdateCapsule. Are you suggesting that a 2-minute
wait for an EFI call should be acceptable (?!)

Wouldn't that trigger stalls and hung-task/wq warnings throughout the
kernel?