On Wed, 24 Feb 2021 19:41:41 +0800 Coiby Xu wrote: > On Tue, Feb 23, 2021 at 12:22:07PM -0800, Jakub Kicinski wrote: > >On Mon, 22 Feb 2021 15:07:01 +0800 Coiby Xu wrote: > >> i40iw consumes huge amounts of memory. For example, on a x86_64 machine, > >> i40iw consumed 1.5GB for Intel Corporation Ethernet Connection X722 for > >> for 1GbE while "craskernel=auto" only reserved 160M. With the module > >> parameter "resource_profile=2", we can reduce the memory usage of i40iw > >> to ~300M which is still too much for kdump. > >> > >> Disabling the client registration would spare us the client interface > >> operation open , i.e., i40iw_open for iwarp/uda device. Thus memory is > >> saved for kdump. > >> > >> Signed-off-by: Coiby Xu <coxu@xxxxxxxxxx> > > > >Is i40iw or whatever the client is not itself under a CONFIG which > >kdump() kernels could be reasonably expected to disable? > > > > 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? If they are it'd be better to leave the choice of enabling RDMA to the user - through appropriate Kconfig options. _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
