> After upgrading my systems to debian 9.0, which provides a 4.9.0-3-amd64 
> kernel
> our HP ProLiant DL360 G4p Systems stop booting the kernel and complain about
> a bug (NMI watchdog: BUG: soft lockup). This concerns all our DL360 G4p 
> devices,
> others seem to work so far. On the affected machines I need to boot the former
> active 3.16.43-2 kernel.

We also ran into this problem yesterday when setting up an old system as
our new firewall.

It turned out that disabling the APIC table (MSP table) in the BIOS
helps, but only at first boot. Once the kernel itself has set up the
tables, after a reboot, it will be stuck again and the machine must be


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