On Fri, Mar 27, 2026 at 7:16 AM Takeru Hayasaka <[email protected]> wrote: > > x86 tail-call fentry patching mirrors CALL text pokes to the tail-call > landing slot. > > The helper that locates that mirrored slot assumes an ENDBR-prefixed > landing, which works on IBT JITs but fails on non-IBT JITs where the > landing starts directly with the 5-byte patch slot.
tailcalls are deprecated. We should go the other way and disable them ibt jit instead. The less interaction between fentry and tailcall the better. pw-bot: cr
