I think I can't get a dmesg as I can't boot the kernel. My screen stays completely black when I try to boot. -Peter On Mon, 17 Sep 2018 at 09:13, Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > > On Mon, Sep 17, 2018 at 08:58:50AM +0300, Peter Anemone wrote: > > Dear kernel developers > > I reported a bug at Bugzilla, but Greg Kroah-Hartman pointed me in > > mailing lists. Here's my bug report: > > > > Linux has been unbootable for me from 4.18 upwards. Even the fallback > > image does not boot. This has not been fixed yet in 4.19-rc3. acpi=off > > kernel parameter lets me boot 4.18.6 and 4.19-rc3. > > > > I used git bisect to track down the first bad commit: > > 84c8b58ed3addf17d3beb2e5037b001ffa65c5ef > > > > The commit is about: > > "ACPI / hotplug / PCI: Don't scan bridges managed by native hotplug" > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=84c8b58ed3addf17d3beb2e5037b001ffa65c5ef > > > > Linux 4.17 booted fine. Reverting commit > > 84c8b58ed3addf17d3beb2e5037b001ffa65c5ef makes 4.18 and 4.19-rc3 > > bootable again (without the acpi=off parameter). > > > > Information about my system: > > Model: HP 6730b laptop > > CPU: Intel Core 2 Duo P8600 > > Boot manager: systemd-boot (UEFI) > > More information of my system as attachments on the bug report at Bugzilla. > > > > Link to the bug report: > > https://bugzilla.kernel.org/show_bug.cgi?id=201127 > > Thanks for the report. Since there is bugzilla about the issue already, > let's continue investigation there. > > Can you also attach full dmesg of the failure (if possible) to the bug?