On Tue 15-10-19 10:58:36, Guilherme G. Piccoli wrote: > On 10/15/19 9:18 AM, Michal Hocko wrote: > > I do agree with Qian Cai here. Kdump kernel requires a very tailored > > environment considering it is running in a very restricted > > configuration. The hugetlb pre-allocation sounds like a tooling problem > > and should be fixed at that layer. > > > > Hi Michal, thanks for your response. Can you suggest me a current way of > preventing hugepages for being created, using userspace? The goal for this > patch is exactly this, introduce such a way. Simply restrict the environment to not allocate any hugepages? Kdump already controls the kernel command line and it also starts only a very minimal subset of services. So who is allocating those hugepages? sysctls should be already excluded by default as Qian mentioned. -- Michal Hocko SUSE Labs
