> Simple example. Try to debug/strace strace ot gdb itself. Not trivial, > you can't attach to strace's tracees. Recently I spent 2 days trying to > understand why strace -f hangs. I was able to attach to strace, but > I wasn't able to see what its tracees do. But what would the semantics be inside the tracees even if you could? > And, it was not possible to even trace strace until it hangs, with > ptrace the tracee (strace) must stop to report the event and this > shadowed the race. "Shadowing the race" was the second surname of strace I thought anyways @) Basically if you care about races never use strace in the first place. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
