latest kernel update breaks sata hotplug on z690

[Matthew Eaton]

SATA hotplug is not working on these kernels:
linux-image-6.5.0-17-generic
linux-image-5.15.0-94-generic

SATA hotplug is working on these kernels:
linux-image-6.5.0-15-generic
linux-image-5.15.0-92-generic

Affected platform:
Gigabyte Z690 AORUS PRO
BIOS Version: F28

Note that I can only repro this on Z690. I also tried Z390 and Z370 platforms and SATA hotplug it is working there.

Steps to repro:
1. Enable SATA hotplug in BIOS
2. Boot to affected kernel
3. Hotplug a SATA drive while monitoring kernel messages

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.5.0-17-generic 6.5.0-17.17~22.04.1
ProcVersionSignature: Ubuntu 6.5.0-17.17~22.04.1-generic 6.5.8
Uname: Linux 6.5.0-17-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Feb 14 13:20:34 2024
InstallationDate: Installed on 2024-01-26 (18 days ago)
InstallationMedia: Ubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.2)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-signed-hwe-6.5
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.apport:
 # set this to 0 to disable apport, or to 1 to enable it
 # you can temporarily override this with
 # sudo service apport start force_start=1
 enabled=0
mtime.conffile..etc.default.apport: 2024-01-26T15:01:36.495491

[Tex (texorange)]

I have a ASUSTeK COMPUTER INC. TUF GAMING Z690-PLUS WIFI D4 Rev 1.xx, and I have the same problems on kernels 6.5.0-17+. On KDE Neon, when I boot into 6.5.0-15, hotplug works.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Matthew Eaton (meaton)]

Thanks for confirming. I tested the 6.5.0-18 kernel and it is also not working.

[Tex (texorange)]

Same here, I confirmed it does not work on 6.5.0-18 & 6.5.0-21.

[Matthew Eaton (meaton)]

I can confirm sata hotplug is still not working as of kernel 6.5.0-26. It is working on 6.5.11-060511-generic mainline.

[GuoqingJiang (guoqingjiang)]

Could someone do git bisect to check which commit could cause the regression? My wild guess would be
the commit which add Intel Alder Lake-P AHCI controller to low power chipsets list or others in the following.

$ git log --oneline Ubuntu-5.15.0-92.102..Ubuntu-5.15.0-94.104 |grep "ata: ahci"
c553eda3bac6 ata: ahci: Add Intel Alder Lake-P AHCI controller to low power chipsets list
0e2b3a2aa29d ata: ahci: Add Elkhart Lake AHCI controller
6fd0f4242184 ata: ahci: Rename board_ahci_mobile
65ecbaa1fe47 ata: ahci: Add support for AMD A85 FCH (Hudson D4)
c21705b5ee4f ata: ahci: Drop pointless VPRINTK() calls and convert the remaining ones

$ git log --oneline Ubuntu-hwe-6.5-6.5.0-15.15_22.04.1..Ubuntu-hwe-6.5-6.5.0-17.17_22.04.1|grep "ata: ahci"
df508bb822f9 ata: ahci: Add Intel Alder Lake-P AHCI controller to low power chipsets list
2a4dad1ecdf3 ata: ahci: Add Elkhart Lake AHCI controller