Messages in this thread | | | From | Andy Lutomirski <> | Subject | Re: [REGRESSION] x86/entry: TIF_SINGLESTEP handling is still broken | Date | Sun, 31 Jan 2021 14:04:44 -0800 |
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> On Jan 31, 2021, at 1:30 PM, Linus Torvalds <torvalds@linux-foundation.org> wrote: > > Btw Kyle, do you have a good simple test-case for this? Clearly this > is some weird special case use, and regular single-stepping works > fine. > >
Indeed, and I have tests for this.
TBH, the TIF_SINGLESTEP code makes no sense, and I think it has at least three overloaded meanings. I can try to look in a bit. I’ve mostly avoided breaking it in the past, but that doesn’t mean I understand the original intent.
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