On Thu, 25 Feb 2021 08:21:01 +0800 Coiby Xu wrote: > On Wed, Feb 24, 2021 at 08:48:41AM -0800, Jakub Kicinski wrote: > >On Wed, 24 Feb 2021 19:41:41 +0800 Coiby Xu wrote: > >> I'm not sure if I understand you correctly. Do you mean we shouldn't > >> disable i40iw for kdump? > > > >Forgive my ignorance - are the kdump kernels separate builds? > > AFAIK we don't build a kernel exclusively for kdump. > > >If they are it'd be better to leave the choice of enabling RDMA > >to the user - through appropriate Kconfig options. > > i40iw is usually built as a loadable module. So if we want to leave the > choce of enabling RDMA to the user, we could exclude this driver when > building the initramfs for kdump, for example, dracut provides the > omit_drivers option for this purpose. > > On the other hand, the users expect "crashkernel=auto" to work out of > the box. So i40iw defeats this purpose. > > I'll discuss with my Red Hat team and the Intel team about whether RDMA > is needed for kdump. Thanks for bringing up this issue! Great, talking to experts here at FB it seems that building a cut-down kernel for kdump is easier than chasing all the drivers to react to is_kdump_kernel(). But if you guys need it and Intel is fine with the change I won't complain. _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
