Bug#1058890: troubleshooting

[Dr . André Desgualdo Pereira]

I changed just the disk of the notebook and installed Debian 12 on it, without 
any encryption and suspend works fine on kernel 6.1.0-18. 
Which makes me conclude that something is wrong with some patch of that Debian 
kernel, not allowing the disk to be decrypted with sedutil after waking up. I 
don't think the problem is on mainline Linux kernel because it is reported to 
work at least up to kernel 6.6.7-arch1-1 ( 
https://github.com/Drive-Trust-Alliance/sedutil/issues/90#issuecomment-1952402111
 )

Bug#1056056: linux-image-6.1.0-13-amd64: After a 'warm' reboot the disk is missing (not detected by the bios) on a HP t640

[Diederik de Haas]

On Tuesday, 20 February 2024 09:22:06 CET Ben Mesman | Spark Narrowcasting 
wrote:
>   mmc: sdhci-pci-o2micro: Fix a warm reboot issue that disk can't be
> detected by BIOS
>  ...
> Link:
> https://lore.kernel.org/r/20240203102908.4683-1-fredaibayhubt...@126.com
> 
> I'm still waiting for the patch to land in the stable kernel series (both
> 6.1 and 6.6)

That patched is queued in both 6.1 and 6.6 (and 6.7) so should normally land 
in the next upstream point release.

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Bug#1056056: linux-image-6.1.0-13-amd64: After a 'warm' reboot the disk is missing (not detected by the bios) on a HP t640

[Ben Mesman | Spark Narrowcasting]

Van: Salvatore Bonaccorso 
> Hi Ben,
> 
> On Thu, Dec 14, 2023 at 09:16:48AM +, Ben Mesman | Spark Narrowcasting 
> wrote:
> > The attached patch works on my systems. Is there a way to get this in?
> 
> ...
> 
> We cannot pick changes which are not going to land in Linux upstream
> and then backported to the stable series. So the way to go here is to
> report the bug upstream, along with your proposed change. Candidates
> to reach out are:
> 
> ...
> 
> as it is affecting 6.1.y mention that the fix needs to be backported to 
> various
> stable series at least back 6.1.y and describe which testing you have
> performed.
> 
> Feel free to keep as well the Debian bug in the loop for the report.
> 
> Hope this helps?

Small update on this bug: I reached out and Fred Ai made a patch which is now 
in the mainline kernel:

commit 58aeb5623c2ebdadefe6352b14f8076a7073fea0
Author: Fred Ai 
Date:   Sat Feb 3 02:29:08 2024 -0800

mmc: sdhci-pci-o2micro: Fix a warm reboot issue that disk can't be detected 
by BIOS

Driver shall switch clock source from DLL clock to
OPE clock when power off card to ensure that card
can be identified with OPE clock by BIOS.

Signed-off-by: Fred Ai 
Fixes:4be33cf18703 ("mmc: sdhci-pci-o2micro: Improve card input timing at 
SDR104/HS200 mode")
Cc: sta...@vger.kernel.org
Link: 
https://lore.kernel.org/r/20240203102908.4683-1-fredaibayhubt...@126.com
Signed-off-by: Ulf Hansson 

I'm still waiting for the patch to land in the stable kernel series (both 6.1 
and 6.6)

Regards,
Ben Mesman.