On Thu, Jun 26, 2014 at 1:12 PM, H. Peter Anvin <h...@zytor.com> wrote: > The real question is if we care that sysret and iter don't match. On 32 bits > the situation is even more complex.
At least for 64 bits, iret vs sysret is purely a kernel implementation detail (except where a tracer modifies things that are inaccessible to sysret), so ISTM it's worth one instruction to make them match. I noticed this thing while fiddling with moving some of the syscall tracing logic to C. This isn't a real problem, but it at least made me scratch my head. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
