Package: src:linux Version: 4.4.2-3 Severity: critical The latest Debian Unstable Linux kernel image linux-image-4.4.0-1-amd64 causes a spontaneous reboot on my fifth generation Braswell NUC (model NUC5PPYH with a quad-core Intel Pentium CPU N3700). The problem doesn't happen when I boot the older kernel images still installed in my computer:
linux-image-3.16.0-4-amd64 linux-image-4.3.0-1-amd64 The problem also didn't show up with Linux version 4.2 (which I have already deleted from my computer and is no longer available via apt-get). Since the crash takes place early in the boot process, I cannot cut-and-paste any relevant kernel or system logs. However I have made a video recording of my system startup and, after some struggle, managed to upload it to YouTube under the following link: https://youtu.be/0Wm55wZ5r8k The boot crash occurs with Debian Linux kernel image 4.4.0-1-amd64 (package version 4.4.2-3). In the WebM VP9 video sample I uploaded, Linux was booted with the command options "ro earlyprintk=efi,keep". The options appear to slow down the boot long enough for the kernel messages to appear before the computer spontaneously reboots (i.e. without any further user interaction, e.g. by pressing Ctrl-Alt-Del). When Linux is booted by the default "ro quiet", the screen just goes black after Grub loads Linux, followed by the spontaneous reboot. Just to note in passing, the last two kernel message lines before the reboot is related to ACPI, something like: [#] ACPI: Core revision # [#] ACPI: 5 ACPI AML tables successfully acquired and loaded The bug may be related to the apparent EFI bug described in Debian Bug No. 815173, which has been marked as closed. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=815173 However, the boot crash occurs even with the latest patched kernel version used as the basis for closing the bug report.