Carl Englund, the next step is to fully commit bisect from kernel 3.19.0-25 to 3.19.0-42 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?
Please note, finding adjacent kernel versions is not fully commit bisecting. After the offending commit (not kernel version) has been identified, then please mark this report Status Confirmed. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags removed: kernel-bug-exists-upstream-3.19.0-26 kernel-bug-exists-upstream-3.19.0-42 kernel-bug-exists-upstream-4.2.0-22 kernel-bug-exists-upstream-4.3.2 kernel-bug-exists-upstream-4.3.3 ** Tags added: needs-bisect regression-update ** Attachment removed: "ProcEnviron.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529381/+attachment/4540521/+files/ProcEnviron.txt ** Attachment removed: "Dependencies.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529381/+attachment/4540520/+files/Dependencies.txt ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1529381 Title: Updating 14.04.3 to latest updates renders system unbootable Status in linux package in Ubuntu: Incomplete Bug description: To reproduce (on this hardware) 1) Install 14.04.3 LTS (Ubuntu or XUbuntu) 2) Install updates 3) Reboot The kernel used after update is 3.19.0-42. Booting with the kernel that came with the install image (3.19.0-25) works fine. This computer is a HP Compaq 6715s. I have looked at HPs support pages for BIOS updates for this model but none was available. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.19.0-42-generic 3.19.0-42.48~14.04.1 ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2 Uname: Linux 3.19.0-25-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CurrentDesktop: XFCE Date: Sat Dec 26 16:36:30 2015 InstallationDate: Installed on 2015-12-26 (0 days ago) InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) SourcePackage: linux-lts-vivid UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: XFCE DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=522810df-638a-412b-9aab-791e2e2bc545 InstallationDate: Installed on 2015-12-26 (0 days ago) InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: Hewlett-Packard HP Compaq 6715s (RU655ET#AK8) Package: linux (not installed) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic root=UUID=0dd333f9-6172-41eb-9472-a321d48c04eb ro quiet splash ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2 RelatedPackageVersions: linux-restricted-modules-3.19.0-25-generic N/A linux-backports-modules-3.19.0-25-generic N/A linux-firmware 1.127.19 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: trusty Uname: Linux 3.19.0-25-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo WifiSyslog: Dec 27 13:38:38 michael wpa_supplicant[815]: wlan1: CTRL-EVENT-SCAN-STARTED _MarkForUpload: True dmi.bios.date: 03/26/2007 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68YTT Ver. F.03 dmi.board.name: 30C2 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 71.21 dmi.chassis.asset.tag: CNU7201T8J dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68YTTVer.F.03:bd03/26/2007:svnHewlett-Packard:pnHPCompaq6715s(RU655ET#AK8):pvrF.03:rvnHewlett-Packard:rn30C2:rvrKBCVersion71.21:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP Compaq 6715s (RU655ET#AK8) dmi.product.version: F.03 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529381/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp