I have seemingly similar problem on Intel NUC DE3815TYKHE (ntel Atom CPU E3815). On 4.15.*, it takes more than 5 minutes to unpack the initramfs (below is an example on 4.15.0-36). With the acpi=noirq, the kernel boots as usual.
$ dmesg | head -2; dmesg | grep -A1 initramfs [ 0.000000] Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018 (Ubuntu 4.15.0-36.39-generic 4.15.18) [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic root=UUID=a6268849-42cb-4d0e-80f3-eb2704407c01 ro vga=normal [ 1.613146] Unpacking initramfs... [ 350.054603] perf: interrupt took too long (2503 > 2500), lowering kernel.perf_event_max_sample_rate to 79750 -- 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/1788387 Title: After upgrading from 4.4.0 to 4.15.0 system doesn't boot - ACPI issue Status in linux package in Ubuntu: Confirmed Bug description: I'm using Xubuntu in an old system, I'm concerned because other users looking for a light OS for their old PC wouldn't be able to install or boot the 18.04 version and above. With kernel 4.4.0 the system boots without problem (xubuntu 16.04), after upgrading to kernel 4.15 the system doesn't boot anymore (18.04). This issue was present when testing kernel 4.13 too. The install crashes with an error: BIOS bug:8254 timer not connected to io-apic error on. Adding any of these commands to the boot allows the system to load properly: -acpi=off -pci=noacpi -acpi=noirq I attach the info related. Ubuntu 4.15.0-32.35-generic 4.15.18 --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: 1509 F.... pulseaudio /dev/snd/controlC1: 1509 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=ed42d246-f10a-403e-a009-8c6428ce1a88 InstallationDate: Installed on 2018-06-12 (70 days ago) InstallationMedia: Xubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) IwConfig: eth0 no wireless extensions. lo no wireless extensions. Lsusb: Bus 001 Device 002: ID 152d:2338 JMicron Technology Corp. / JMicron USA Technology Corp. JM20337 Hi-Speed USB to SATA & PATA Combo Bridge Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 248a:00da Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Dell Inc Dimension C521 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-32-generic root=UUID=467ee8bd-241d-4d11-95d9-6d9268a1dca6 ro quiet splash pci=noacpi vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-32-generic N/A linux-backports-modules-4.15.0-32-generic N/A linux-firmware 1.173.1 RfKill: Tags: bionic Uname: Linux 4.15.0-32-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-08-17 (5 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788387/+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
