linux-kernel - Re: Bug: After a 'warm' reboot the disk is missing (not detected by the bios) on a HP t640

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Date: Tue, 9 Jan 2024 12:25:49 +0000
From: Ben Mesman | Spark Narrowcasting <ben@...rknarrowcasting.nl>
To: "Fred Ai(WH)" <fred.ai@...hubtech.com>, Sean Christopherson
	<seanjc@...gle.com>
CC: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
	"x86@...nel.org" <x86@...nel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, Ulf Hansson <ulf.hansson@...aro.org>, Adrian
 Hunter <adrian.hunter@...el.com>, "Chevron Li (WH)"
	<chevron.li@...hubtech.com>, "Shaper Liu (WH)" <shaper.liu@...hubtech.com>
Subject: Re: Bug: After a 'warm' reboot the disk is missing (not detected by
 the bios) on a HP t640

Hi Fred,

> Hi Ben Mesman,
> 
> > I tried the patch, but it didn't solve the issue, sorry.
> 
> > Do you need any extra info? Any other help I can give to solve this problem?
> 
> Please make sure you compile in a way that allows our patch to take effect, or you can add debugging information to ensure that our patch works.

I did a checkout (v6.1.70) and a compile (with the .config from debian) to check for the 'bad' situation. Then I did a 'make clean', patched the tree and did a new compile. I think that should have activated the patch.

Maybe the extra .remove_slot function is not executed (or only applicable for a newer kernel version?), but I don't know how to add debugging info, sorry.

Thanks,
Ben Mesman.