On Wed, 2017-05-03 at 15:55 +0300, Arano-kai wrote: > Package: src:linux > Version: 4.9.18-1 > Severity: critical > Tags: upstream > Justification: breaks the whole system > > Dear Maintainer, > after updating the kernel to `4.9.0-2-amd64` on HP DL360G5, the > system hangs up with repeating `NMI watchdog: BUG: soft lockup - > CPU#0 stuck for 23s! [swapper/0:1]`. > `4.9.0-1-amd64` also affected. > Last working kernel is `4.8.0-2-amd64` > > Boot possible only if `acpi=off` provided in kernel opts. [...] > Boot log from the serial console is attached.
The weird thing in this log is: [ 0.232233] .... node #0, CPUs: #4 [ 0.322042] x86: Booted up 1 node, 2 CPUs We have 2 CPUs and they are apparently numbered 0 and 4?! Maybe related to: d49597fd3bc7 x86/cpu: Deal with broken firmware (VMWare/XEN) (which went into 4.9) 9d85eb9119f4 x86/smpboot: Make logical package management more robust (which went into 4.9.2) Ben. -- Ben Hutchings Make three consecutive correct guesses and you will be considered an expert.
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