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Re: [PATCH] Revert Intel CET changes to __jmp_buf_tag (Bug 22743)
On Thu, Jan 25, 2018 at 10:33 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Thu, Jan 25, 2018 at 6:55 AM, Zack Weinberg <zackw@panix.com> wrote:
>> In my opinion, the fact that you two are having this argument
>> reinforces Carlos' position: the original patch should be reverted and
>> we should figure out what to do in 2.28 when we're not under time
>> pressure. HJ, do you have some concrete external reason why you must
>> have this new feature in 2.27? If so, please tell us what it is. To
>> me it doesn't seem urgent.
>
> My question is if we are going to fix it at all. If yes, why not 2.27.
> Both approaches are opaque to users. They can't tell the difference.
My concerns are entirely based on timing: specifically, you seem to be
in a rush to squeak under the 2.27 deadline. Rushing leads to
mistakes.
This seems like the sort of thing that could reasonably be backported
to the release branch(es) ... *after* we have calmly, without rushing,
figured out the correct fix in mainline.
zw