mbox series

[0/2,j,linux-azure,v2] Azure: Fix hibernation failure

Message ID 20240618152536.404577-1-timg@tpi.com
Headers show
Series Azure: Fix hibernation failure | expand

Message

Tim Gardner June 18, 2024, 3:25 p.m. UTC 
v2 - Add stable provenance

BugLink: https://bugs.launchpad.net/bugs/2069749

SRU Justification

Impact:

Microsoft has reported hibernation failures with Azure based kernels. Mantic and Noble already have the fix patches via stable.

Fix:

drm: Check output polling initialized before disabling
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.9-rc5&id=5abffb66d12bcac84bf7b66389c571b8bb6e82bd

drm: Check polling initialized before enabling in drm_helper_probe_single_connector_modes
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.9-rc5&id=048a36d8a6085bbd8ab9e5794b713b92ac986450

Regression Potential:

Though these 2 patches are backports to stable (and thus of low regression potential), hibernation could continue to fail.

Other Info:

SF: #00384521

Comments

Manuel Diewald June 19, 2024, 7:22 a.m. UTC | #1 
On Tue, Jun 18, 2024 at 08:25:34AM -0700, Tim Gardner wrote:
> v2 - Add stable provenance
> 
> BugLink: https://bugs.launchpad.net/bugs/2069749
> 
> SRU Justification
> 
> Impact:
> 
> Microsoft has reported hibernation failures with Azure based kernels. Mantic and Noble already have the fix patches via stable.
> 
> Fix:
> 
> drm: Check output polling initialized before disabling
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.9-rc5&id=5abffb66d12bcac84bf7b66389c571b8bb6e82bd
> 
> drm: Check polling initialized before enabling in drm_helper_probe_single_connector_modes
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.9-rc5&id=048a36d8a6085bbd8ab9e5794b713b92ac986450
> 
> Regression Potential:
> 
> Though these 2 patches are backports to stable (and thus of low regression potential), hibernation could continue to fail.
> 
> Other Info:
> 
> SF: #00384521
> 
> 
> -- 
> kernel-team mailing list
> kernel-team@lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Will be included in generic via upstream stable update v5.15.161.

Acked-by: Manuel Diewald <manuel.diewald@canonical.com>
Paolo Pisati June 20, 2024, 1:53 p.m. UTC | #2 
On Tue, Jun 18, 2024 at 08:25:34AM -0700, Tim Gardner wrote:
> v2 - Add stable provenance
> 
> BugLink: https://bugs.launchpad.net/bugs/2069749

Clean cherry-picks.

Acked-by: Paolo Pisati <paolo.pisati@canonical.com>
John Cabaj June 21, 2024, 8:33 p.m. UTC | #3 
On 6/18/24 10:25 AM, Tim Gardner wrote:
> v2 - Add stable provenance
> 
> BugLink: https://bugs.launchpad.net/bugs/2069749
> 
> SRU Justification
> 
> Impact:
> 
> Microsoft has reported hibernation failures with Azure based kernels. Mantic and Noble already have the fix patches via stable.
> 
> Fix:
> 
> drm: Check output polling initialized before disabling
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.9-rc5&id=5abffb66d12bcac84bf7b66389c571b8bb6e82bd
> 
> drm: Check polling initialized before enabling in drm_helper_probe_single_connector_modes
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.9-rc5&id=048a36d8a6085bbd8ab9e5794b713b92ac986450
> 
> Regression Potential:
> 
> Though these 2 patches are backports to stable (and thus of low regression potential), hibernation could continue to fail.
> 
> Other Info:
> 
> SF: #00384521
> 
> 

Applied to jammy:linux-azure master-next in the interim.


Thanks,
John