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SubjectRe: [PATCH 00/10] printk: Avoid deadlock in NMI + vprintk_emit() cleanup
On Tue, 2 Jun 2015, long.wanglong wrote:

> How about replacing printk function earlier? we can replace printk
> function before we calling default_do_nmi(arch/x86/kernel/nmi.c) and
> replace back after calling.
>
> Is it a feasible solution? or does it introduce other problems?

This has been already discussed in the past when we were fixing the
NMI-based stackdumping. See

http://marc.info/?l=linux-kernel&m=141640218702588&w=2

--
Jiri Kosina
SUSE Labs


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