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SubjectRe: [RFC][PATCH] tracing/x86: Save CR2 before tracing irqsoff on error_entry
On 21/03/2019 19:18, Linus Torvalds wrote:
> On Thu, Mar 21, 2019 at 11:05 AM Andy Lutomirski <> wrote:
>> In the long run, I think the right solution is to rewrite even more of
>> this mess in C. We really ought to be able to put the IRQ flag
>> tracing and the context tracking into C code.
> Tangentially about this long run thing - can we start discussing just
> dropping PV mode entirely in the long run? Or even not-so-long run?

As Andrew already said: the work is ongoing, but hard.

What I'm planning to do, however, is dropping 32-bit PV code from the
kernel not too far in the future. This is only a small step, but it is
a move in the right direction.


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