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SubjectRe: [PATCH v5 3.1.0-rc4-tip 12/26] Uprobes: Handle breakpoint and Singlestep
On 10/07, Oleg Nesterov wrote:
> What if the forking task (current) is in UTASK_BP_HIT state?
> ...
> And what if we step into a syscall insn?
> ...

And I guess there would be a lot more problems here. But, looking
at is_prefix_bad() I see the nice comment:

* opcodes we'll probably never support:
* 0f - lar, lsl, syscall, clts, sysret, sysenter, sysexit, invd, wbinvd, ud2

This answers my questions.

> Please simply ignore my email if you think everything is fine.



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