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SubjectRe: [RFC][PATCH 00/17] Fix up the recent SRSO patches
Today I failed to suspend, and the spec_rstack thing was off.

https://up.tail.ws/txt/non-working-suspend-2.txt




On 16.04.2024 22:14, a-development@posteo.de wrote:
> Now that it is deactivated, the machine no longer suspends!
>
> https://up.tail.ws/txt/non-working-suspend.txt
>
>> Then, the other thing you could try is whether suspend works without
>> that proprietary crap.
>
> I refuse. I can explain. I tried lots of capture cards that stated
> they support uvcvideo and linux.
> This problem existed prior and I need it for work on this machine.
> But none of them worked reliably or would straight up glitch out.
> Thats because they do not implement it properly.
>
> It had to be a product from Magewell, who manage an array of bash
> scripts and the AUR maintainer gets updates if something breaks, too.
> Why do I use a PCIe HDMI Capture Card?
> I need to use Cameras and Displays.
>
> As for USB Cameras, unless its a product from e.g Logitech, they kept
> giving me similar headaches.
> And that included an older setup that ran a Intel i7 8700K as well.
>
> Thx.
>
>
>
> On 16.04.2024 10:45, Borislav Petkov wrote:
>> On Tue, Apr 16, 2024 at 06:48:54AM +0000, a-development@posteo.de
>> wrote:
>>> It worked, it worked!
>>>
>>> https://up.tail.ws/txt/working-suspend.txt
>>>
>>> I've tested it now quite some time.
>>> But, I also had to start using 6.6.26-1-lts because my magewell
>>> capture card
>>> wouldn't without.
>>
>> Right, that thing I guess:
>>
>> [Mon Apr 15 18:37:58 2024] ProCapture: loading out-of-tree module
>> taints kernel.
>> [Mon Apr 15 18:37:58 2024] ProCapture: module verification failed:
>> signature and/or required key missing - tainting kernel
>>
>> So, machines do suspend even with SRSO enabled and since your machine
>> is
>> affected, you probably should try without spec_rstack_overflow=off to
>> see if it works with the new kernel.
>>
>> Then, the other thing you could try is whether suspend works without
>> that proprietary crap.
>>
>> And then we can see.
>>
>> Thx.

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