On Thu, Apr 18, 2013 at 06:38:39PM +0100, David Vrabel wrote: > On 17/04/13 13:34, Daniel Kiper wrote: > > > > kexec -e still does not work. I see in my console: > > > > I'm in purgatory > > sha256 digests do not match :( > > I have now fixed this. Xen was not probably zeroing out trailing pages > (only partial pages) when loading a default image (crash was fine). Idea is quite good but how many pages in percent are zero? Is it worth to do that? Additionally, I am afraid that this way you are only masking bug in kexec-tools. I think it is better to do bisect on it and find out which patch introduces a bug. > The kernel does this by allocating and clearing pages and then > relocating these as normal but it's wasteful to allocate a bunch of > empty pages so I added a IND_ZERO entry type for the indirection pages > which gets the relocation code to zero the destination. > > See the kexec-v5 branch at: > > http://xenbits.xen.org/gitweb/?p=people/dvrabel/xen.git;a=summary > > I shall repost this series again once the 4.4 development window is open. Do you think that at this stage we are not able to introduce this kexec implementation into 4.3? I think that we should try. Daniel
