Coredump generated on crash (segfault, abort), but not when sending corresponding signal (kill -11)

Summary The issue at hand is related to coredump generation on an old embedded Linux platform. When a program crashes naturally, a coredump is generated and sent to a remote server using netcat. However, when the program is manually terminated using kill -11, no coredump is generated. This behavior is unexpected, given that ulimit -c … Read more

Jump in unity using Rigidbody Force

Summary The issue at hand is related to a jump mechanic in a Unity game, where the player can jump multiple times without landing on the ground. This is caused by an incorrect implementation of the jump logic. The current implementation checks if the player is grounded and then applies a force upward to make … Read more

How can I inspect a website from Chrome android?

Summary To inspect a website in Chrome on Android, you can’t directly use a keyboard shortcut like cmd+option+c on a Mac. However, there are alternative methods to achieve similar functionality. The primary approach involves using the Chrome desktop version’s remote debugging feature in conjunction with an Android device. Root Cause The root cause of the … Read more

.loc uses label based slicing

Summary The issue at hand is related to the label-based slicing behavior of the .loc attribute in pandas DataFrames. Specifically, the question asks why .loc returns an output even when both the start and end index are not present as an index, seemingly exhibiting position-based behavior instead of label-based behavior. Root Cause The root cause … Read more

Is a circular (reverse exit) HTTP call topology supported in .NET similar to Java APM reverse exit calls?

Summary The question revolves around whether circular HTTP call topology, also known as reverse exit calls, is supported in .NET similar to Java APM. This involves two web applications, Application1 and Application2, where Application1 sends a synchronous HTTP request to Application2, which then makes a synchronous HTTP call back to Application1. The goal is to … Read more

How to avoid iterator invalidation in loop

Summary The problem of iterator invalidation in loops is a common issue in C++ programming, particularly when working with containers like std::set or std::map. In this scenario, we’re dealing with a std::set of pointers to Battle::BattleBuf objects, where an element might be erased during a deep call stack, causing the iterator to become invalid. This … Read more

Issue with ERA5 Land hourly dataset?

Summary The issue at hand involves the presence of infinite (Inf) values in the ERA5-Land hourly temperature dataset, particularly in coastal grid cells. This problem arises when computing population-weighted temperature for coastal cities, resulting in substantially lower exposure values compared to the observed regional mean temperature. The primary concern is whether this issue reflects an … Read more

How should one architect an API that immediately returns, processes task through a queue, then hosts the result?

Summary The problem at hand is designing an API that immediately returns after accepting a task, processes the task through a queueing system, and then hosts the result. The current system consists of a Flutter web app, a Python backend, and a Supabase database. The backend uses Celery and Redis for queueing tasks. The goal … Read more