Investigate negative sample values #2285
Description
Please see #2283 and #2282 for the context.
Apparently, the problem might be caused by delta calculation, because it was only observed when the target was restarting, which causes a reset of the cumulative profile (such as Go heap_allocs). On the other hand, in Go before 1.21 there was an issue with stack trace unwinding causing negative deltas as well.