This bug was fixed in the package linux - 6.17.0-4.4
---------------
linux (6.17.0-4.4) questing; urgency=medium
* questing/linux: 6.17.0-4.4 -proposed tracker (LP: #2122321)
* [SRU] Do not instantiate SPD5118 sensors on i801 SMBus controllers
(LP: #2114963)
- SAUCE: i2c: i801: Do not instantiate spd5118 under SPD Write Disable
* initramfs-tools: autopkgtest fails on arm64 with Possible missing firmware
/lib/firmware/apple/dfrmtfw-*.bin for built-in driver apple_z2
(LP: #2115758)
- [Config] Set TOUCHSCREEN_APPLE_Z2=m (arm64)
* Support TDX host in questing (LP: #2121873)
- SAUCE: x86/kexec: Consolidate relocate_kernel() function parameters
- SAUCE: x86/sme: Use percpu boolean to control WBINVD during kexec
- SAUCE: x86/virt/tdx: Mark memory cache state incoherent when making
SEAMCALL
- SAUCE: x86/kexec: Disable kexec/kdump on platforms with TDX partial
write erratum
- SAUCE: x86/virt/tdx: Remove the !KEXEC_CORE dependency
- SAUCE: x86/virt/tdx: Update the kexec section in the TDX documentation
- SAUCE: KVM: TDX: Explicitly do WBINVD when no more TDX SEAMCALLs
- [Config] enable TDX host support
* minimal kernel lacks modules for blk disk in arm64 openstack environments
where config_drive is required (LP: #2118499)
- [Config] Enable SYM53C8XX_2 on arm64
* Miscellaneous Ubuntu changes
- [Config] Re-enable Rust support, and make sure it doesn't get disabled
by accident
- [Config] updateconfigs for v6.17-rc5 rebase
-- Timo Aaltonen <[email protected]> Mon, 08 Sep 2025
17:10:38 +0300
** Changed in: linux (Ubuntu Questing)
Status: In Progress => Fix Released
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-6.14 in Ubuntu.
https://bugs.launchpad.net/bugs/2114963
Title:
[SRU] Do not instantiate SPD5118 sensors on i801 SMBus controllers
Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.14 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Deferred
Status in linux-oem-6.14 source package in Noble:
Fix Released
Status in linux source package in Plucky:
In Progress
Status in linux-oem-6.14 source package in Plucky:
Invalid
Status in linux source package in Questing:
Fix Released
Status in linux-oem-6.14 source package in Questing:
Invalid
Bug description:
[ Impact ]
The spd5118 sensor will not function normally if Intel's SMBus has the
SPD Write Disable bit set. Notably, during a resume, the following
messages would appear because driver is not able to sync back the
cached register values:
[1300273.242285] spd5118 2-0050: Failed to write b = 0: -6
[1300273.242297] spd5118 2-0050: PM: dpm_run_callback(): spd5118_resume
[spd5118] returns -6
[1300273.242309] spd5118 2-0050: PM: failed to resume async: error -6
[ Fix ]
Cherry-pick the following 2 patches:
1. i2c: smbus: introduce Write Disable-aware SPD instantiating
functions[1]
2. i2c: i801: Do not instantiate spd5118 under SPD Write Disable[2]
[ Tests ]
1. Install and boot the kernel. Check dmesg. The following message
should not appear:
[ 2.819557] spd5118 2-0050: DDR5 temperature sensor: vendor
0x06:0x32 revision 1.6
2. Suspend the system and resume. The error messages should not
appear.
[ Where the problem could occur ]
This makes the spd5118 device not instantiate at all during the i801
controller probe. This was however what the driver author recommended,
so let's do it this way before a better solution appears.
[Additional Information]
[1]
https://lore.kernel.org/all/20250430-for-upstream-i801-spd5118-no-instantiate-v2-1-2f54d91ae...@canonical.com/
[2]
https://lore.kernel.org/all/20250613-for-upstream-not-instantiate-spd5118-v2-1-cf456ed9b...@canonical.com/
[3]
https://lore.kernel.org/all/[email protected]/
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/2114963/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
