RE: [RFC][PATCH] pstore: Skip spinlock when just one cpu is online

[Seiji Aguchi]

> A boot argument might help - so we can force use of pstore in cases where kdump is failing (or prevent use of pstore in cases where it
> seem to be preventing us getting to kdump ... I don't have a preference).  BUT this would only be useful if we had a repeatable
> problem so that we could switch to the other mode ... and it seems likely that the kinds of problems that cause pstore or kdump to fail
> would be weird cases that are not very repeatable :-(

I think it is helpful for reproducible problems because reasons of kdump failure vary widely.
For example, users may forget to erase vmcores from a dump disk and kdump fails due to lack of space.
Also, FC cable or other hardware may be broken.

But, The person I have to convince is not you but kexec engineers...

> 
> -Tony
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