On Fri 11-10-19 21:41:01, Guilherme Piccoli wrote: > On Fri, Oct 11, 2019 at 8:52 PM Qian Cai <cai@xxxxxx> wrote: > > > > > > It simply error-prone to reuse the sysctl.conf from the first kernel, as it could contains lots of things that will kill kdump kernel. > > Makes sense, I agree with you. But still, there's no > formal/right/single way to do kdump, so I don't think we should rely > on "rootfs kdump is wrong" to refuse this patch's idea. If so, we > should then formalize the right way of kdumping. > Of course, this is only my opinion, let's see what people think about it! 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. -- Michal Hocko SUSE Labs
