Hi Vivek, On Thu, 2015-10-22 at 08:50 -0400, Vivek Goyal wrote: > On Thu, Oct 22, 2015 at 11:17:18AM +0800, Dave Young wrote: > > On 10/21/15 at 04:12pm, Geoff Levand wrote: > > > Add a new option --lite to kexec that allows for a fast reboot > > > by avoiding the purgatory integrity checks. This option is > > > intended for use by kexec based bootloaders that load a new > > > image and then immediately transfer control to it. > > > > I think Vivek was rejecting this --lite since kdump need the purgatory > > integrity checks. Ccing him. > > Right. Why are we trying to bypass sha256 hash verification of loaded > segments at run time, that needs to be justified. Please see my reply to Dave. > Atleast on x86, this integrity verification was fast and we did not > notice any siginificant delays in purgatory. And in that case extra knob > like this is hard to justify. I notice the difference on the my arm64 system, so I guess we are even on that. In general, faster boot times are desirable. This option allows a faster system boot for kexec based bootloaders that use kexec-tools. -Geoff
