[PATCH v2 0/5] kdump: crashkernel reservation from CMA

[Michal Hocko]

On Fri 30-05-25 10:39:39, David Hildenbrand wrote:
> On 30.05.25 10:28, Michal Hocko wrote:
[...]
> > All that being said I would go with an additional parameter to the
> > kdump cma setup - e.g. cma_sane_dma that would skip waiting and use 10s
> > otherwise. That would make the optimized behavior opt in, we do not need
> > to support all sorts of timeouts and also learn if this is not
> > sufficient.
> > 
> > Makes sense?
> 
> Just so I understand correctly, you mean extending the "crashkernel=" option
> with a boolean parameter? If set, e.g., wait 1s, otherwise magic number 10?

crashkernel=1G,cma,cma_sane_dma # no wait on transition
crashkernel=1G,cma # wait on transition with e.g. 10s timeout
-- 
Michal Hocko
SUSE Labs