Re: [Dle-develop] [RFC][PATCH -next] pstore: replace spin_lock with spin_trylock_irqsave in panic path

[Seiji A. <sei...@hd...>]

Hi Don,

>[reads the kernel/panic.c code] oh, I see this already exists, you would
>just move the smp_send_stop() command up a couple lines of code.
>
>[Side note] perhaps we should change the behaviour of smp_send_stop to use
>NMI and create a blacklist of machines to use the IRQ line instead.  I
>assume the list of broken machines is small as Red Hat has been kdumping
>kernels since 2.6.18 with little evidence that machines were failing
>because NMI wasn't working properly.

OK. I will develop a patch in accordance with your comment above.
In addition to that, I have to improve mtdoops/ramoops because
There are some blocking codes in them.

Seiji