** Description changed: [SRU Justification] [Impact] With currently in eoan-proposed kernel 5.3.0-25.27, or all other kernels with stable patch "net/flow_dissector: add connection tracking dissection" backported, backport-iwlwifi-dkms has not yet get synced with its data structure layout change, and may cause system hang whenever trying to associate with WiFi base stations. [Fix] Ubuntu Sauced fix "backport-address-interface-change-in-linux-skbuff.h-.patch" to be backported to Eoan. [Test Case] Verified on following kernels: - backport-iwlwifi, 7906, 4.15.0-1065-oem, x86_64: installed - backport-iwlwifi, 7906, 4.15.0-1066-oem, x86_64: installed - backport-iwlwifi, 7906, 4.15.0-72-generic, x86_64: installed - backport-iwlwifi, 7906, 4.15.0-73-generic, x86_64: installed - backport-iwlwifi, 7906, 5.0.0-1030-oem-osp1, x86_64: installed - backport-iwlwifi, 7906, 5.0.0-1032-oem-osp1, x86_64: installed - backport-iwlwifi, 7906, 5.0.0-37-generic, x86_64: installed - backport-iwlwifi, 7906, 5.0.0-38-generic, x86_64: installed - backport-iwlwifi, 7906, 5.3.0-18-generic, x86_64: installed - backport-iwlwifi, 7906, 5.3.0-24-generic, x86_64: installed + backport-iwlwifi, 7906, 4.15.0-1065-oem, x86_64: installed + backport-iwlwifi, 7906, 4.15.0-1066-oem, x86_64: installed + backport-iwlwifi, 7906, 4.15.0-72-generic, x86_64: installed + backport-iwlwifi, 7906, 4.15.0-73-generic, x86_64: installed + backport-iwlwifi, 7906, 5.0.0-1030-oem-osp1, x86_64: installed + backport-iwlwifi, 7906, 5.0.0-1032-oem-osp1, x86_64: installed + backport-iwlwifi, 7906, 5.0.0-37-generic, x86_64: installed + backport-iwlwifi, 7906, 5.0.0-38-generic, x86_64: installed + backport-iwlwifi, 7906, 5.3.0-18-generic, x86_64: installed + backport-iwlwifi, 7906, 5.3.0-24-generic, x86_64: installed [Regression Potential] Low. This patch corrects call flow as in-tree kernel source does when that stable patch is patched. [Other Info] Proposed Eoan SRU package can be found in https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1855825. ========== original bug description ========== Dell XPS 13 7390 (CID 201906-27119)(connected with a SAL TBT docking device) Pre-load Ubuntu kernel: linux-oem 4.15.0-1066.76-oem [Description] The system hangs when connecting to wifi [Steps to Reproduce] Connect to bg-wifi over the wifi applet of your desktop. Select the SSID and then being prompted for a password. The system hangs immediately after entering the password. Reproducing Rate: 100% [Expected Result] Wifi works and the system keeps running. [Actual Result] System hangs. [Additional Information] 4.15.0-1066 oem kernel looks good for this test case. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-oem 4.15.0.1066.70 ProcVersionSignature: Ubuntu 4.15.0-1065.75-oem 4.15.18 Uname: Linux 4.15.0-1065-oem x86_64 ApportVersion: 2.20.9-0ubuntu7.10 Architecture: amd64 Date: Tue Dec 10 13:47:54 2019 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20180608-47+beaver-three-eyed-raven+X92 InstallationDate: Installed on 2019-10-08 (63 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38 SourcePackage: linux-meta-oem UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1855825 Title: When connecting to wifi with the proposed linux-oem kernel , the system hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/backport-iwlwifi-dkms/+bug/1855825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
