[PATCH v33 00/14] add kdump support

David Woodhouse dwmw2 at infradead.org
Fri Mar 17 07:02:53 PDT 2017


On Fri, 2017-03-17 at 11:43 +0000, David Woodhouse wrote:
> 
> Is this one going to be be my fault too?

Looks like it isn't my fault. In ipi_cpu_crash_stop() we don't modify
the online mask. Which is reasonable enough if we want to preserve its
original contents from before the crash, but it does make that
WARN_ON() in machine_kexec() a false positive.

Btw, why is this a normal IPI and not something... less maskable?
On x86 we use NMI for that...
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