[Bug 220646] New: Regression: kernel 6.16.8 fails to boot on Intel Raptor Lake Z790 (ahci/xhci error -12)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220646

            Bug ID: 220646
           Summary: Regression: kernel 6.16.8 fails to boot on Intel
                    Raptor Lake Z790 (ahci/xhci error -12)
           Product: Drivers
           Version: 2.5
          Hardware: Intel
                OS: Linux
            Status: NEW
          Severity: high
          Priority: P3
         Component: Platform_x86
          Assignee: drivers_platform_x86@kernel-bugs.osdl.org
          Reporter: jn@yaloub.com
        Regression: No

Hardware:
- MSI MAG Z790 TOMAHAWK WIFI (MS-7D91), Intel i9-14900KF
- Chipset: Intel Raptor Lake (Z790)
- Storage: Samsung SSD 860 EVO (SATA), Corsair MP600 NVMe
- GPU: NVIDIA RTX 4070 Ti

Issue:
- Booting 6.16.8+kali-amd64 fails with:
    ahci: failed to start port (errno=-12)
    xhci_hcd 0000:00:14.0: init failed, error -12
- System drops into initramfs, USB keyboard not functional at that point.
- GRUB works (disk visible to firmware).
- Booting older kernel 6.12.38+kali-amd64 works fine on same hardware.

Additional:
- Also see:
    platform INT3515:01: deferred probe pending: Error creating i2c-client, idx
0
- This message appears on both kernels, but is not fatal on 6.12.

Steps to reproduce:
1. Boot system with kernel 6.16.8.
2. Observe ahci/xhci errors and initramfs hang.
3. Reboot and select 6.12.38 → boots normally.

Conclusion:
Regression between 6.12 and 6.16 affecting Intel Raptor Lake SATA AHCI and USB
XHCI controllers.

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