Elisabetta, I will not answer your question directly. However I think that everyone has heard of the Meltdown bug by now, and there are updated kernels being made available for this. You should have a look on the Debian pages to see what they are saying about this, and choose which kernel you need on your head node.
On 9 January 2018 at 14:17, Steffen Grunewald <steffen.grunew...@aei.mpg.de> wrote: > On Tue, 2018-01-09 at 13:16:12 +0100, Elisabetta Falivene wrote: > > Root file system is on the master. I'm being able to boot the machine > > changing kernel. Grub allow to boot from two kernel: > > > > > > kernel 3.2.0-4-amd64 > > > > kernel 3.16.0-4-amd64 > > > > > > The problem is with kernel 3.16, but boots correctly with 3.2. > > Let me guess: you're running multi-socket systems, and the kernel > version behind that "3.16.0-4" label is 3.16.51-2, not 3.16.43-2? > There seems to be an issue with that latest kernel update in Debian > Jessie, mainly affecting multi-socket machines, but since Dec 4 > when this kernel package (set) was released I haven't seen any > updates or fixes. > Would using the jessie-backports kernel (4.9.x) be an option for you? > > Cheers, > S > >
