I can confirm it works for me.
uname -a Linux ug-222 4.15.0-48-generic #51-Ubuntu SMP Wed Apr 3 08:28:49 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Thank you! -- 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/1814069 Title: kernel linux-image-4.15.0-44 not booting on Hyperv Server 2008R2 Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Released Bug description: === SRU Justification === [Impact] NULL pointer dereference in netvsc_probe(). Module hv_netvsc is included in initramfs, so this blocks the boot process. For Hyper-V only supports single channel, rndis_filter_device_add() bails early and jump to tag "out". Subsequent code calls rndis_filter_device_remove() and returns ERR_PTR(ret), where ret is 0 (sucess). Because of that, it passes IS_ERR(nvdev) check in netvsc_probe() and cause a NULL pointer dereference, as nvdev now is 0: ... if (nvdev->num_chn > 1) schedule_work(&nvdev->subchan_work); [Fix] Correctly return net_device at the end of rndis_filter_device_add(). [Test] Users report positive result. [Regression Potenial] Low. Trivial change, patches are in upstream sometime. === Original Bug Report === Ubuntu stuck on booting on HyperV Server 2008R2. I saw kernel messages, seems to load ram image the boot is stuck. Seems to be a problem with hyperv drivers propably harddrive. Reverted back to the previous kernel. Description: Ubuntu 18.04.1 LTS Release: 18.04Description: Ubuntu 18.04.1 LTS Release: 18.04 --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jan 31 08:52 seq crw-rw---- 1 root audio 116, 33 Jan 31 08:52 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Microsoft Corporation Virtual Machine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 hyperv_fb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=86036ccb-bc11-11e8-93c9-00155dfd7535 ro maybe-ubiquity ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-43-generic N/A linux-backports-modules-4.15.0-43-generic N/A linux-firmware 1.173.3 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic uec-images Uname: Linux 4.15.0-43-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 03/19/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 090004 dmi.board.name: Virtual Machine dmi.board.vendor: Microsoft Corporation dmi.board.version: 7.0 dmi.chassis.asset.tag: 8531-7125-9206-2460-7819-2663-90 dmi.chassis.type: 3 dmi.chassis.vendor: Microsoft Corporation dmi.chassis.version: 7.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr090004:bd03/19/2009:svnMicrosoftCorporation:pnVirtualMachine:pvr7.0:rvnMicrosoftCorporation:rnVirtualMachine:rvr7.0:cvnMicrosoftCorporation:ct3:cvr7.0: dmi.product.name: Virtual Machine dmi.product.version: 7.0 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1814069/+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
