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Tencent Cloud Developer
Tencent Cloud Developer
Jan 3, 2025 · Operations

Deep Dive into Linux Kernel Page Cache Xarray: Problem, Analysis, and Optimizations

The article examines a long‑standing hidden bug in the Linux kernel’s page‑cache Xarray that caused occasional data loss with Large Folio support, details its discovery and fix by the TencentOS team, and shows how consolidating multiple tree walks into a single walk in Linux 6.10 reduced latency and improved performance by about ten percent.

Bug FixLinux kernelPerformance Optimization
0 likes · 27 min read
Deep Dive into Linux Kernel Page Cache Xarray: Problem, Analysis, and Optimizations
IT Services Circle
IT Services Circle
Aug 19, 2024 · Backend Development

How Saki Fixed a PDO Compatibility Bug in PHP 8.1 and Contributed to the PHP Core

This article recounts how developer Saki discovered a PDO extension incompatibility after PHP 8.1 upgrade, submitted detailed bug reports and pull requests, added unit tests, resolved further SQL Server issues, and ultimately became a PHP core contributor, illustrating the open‑source contribution process.

BackendBug FixDatabase
0 likes · 7 min read
How Saki Fixed a PDO Compatibility Bug in PHP 8.1 and Contributed to the PHP Core
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Aug 16, 2024 · Backend Development

Why Spring’s Functional Router Fails with /api Prefix and How to Fix It

This article explains a bug in Spring 6.1.11 where adding a servlet path prefix causes functional routing to throw an UnsupportedOperationException, demonstrates the issue with code and screenshots, and provides work‑arounds and the permanent fix introduced in Spring 6.1.12.

Bug FixJavaServlet Path
0 likes · 6 min read
Why Spring’s Functional Router Fails with /api Prefix and How to Fix It
Inke Technology
Inke Technology
Jun 19, 2024 · Mobile Development

Why Flutter’s PlatformView Can Freeze Video: Deep Engine Bug Analysis & Fixes

This article examines a video rendering bug in Flutter when combining Texture widgets with PlatformView using Hybrid Composition, analyzes the underlying engine and rendering pipeline across Android, and presents three concrete solutions—including engine patches and Dart API tweaks—to restore proper texture refresh.

AndroidBug FixFlutter
0 likes · 18 min read
Why Flutter’s PlatformView Can Freeze Video: Deep Engine Bug Analysis & Fixes
Laravel Tech Community
Laravel Tech Community
May 20, 2024 · Databases

Redis 7.2.5 Released with Security Fixes and Bug Fixes

Redis version 7.2.5 has been released, addressing several security issues and a range of bugs in both the core server and CLI tools, including replica handling in clustered shards, LSET crashes, blocking command timeouts, Lua argument conversion errors, and command‑line option handling.

Bug FixDatabaseRedis
0 likes · 2 min read
Redis 7.2.5 Released with Security Fixes and Bug Fixes
Laravel Tech Community
Laravel Tech Community
May 28, 2023 · Big Data

Elasticsearch 8.8.0 Release Notes: Bug Fixes, Deprecations, and New Features

Elasticsearch 8.8.0, the latest release of the Lucene‑based distributed search engine, introduces numerous bug fixes across aggregations, allocation, application and authorization, deprecates certain allocation settings, and adds new capabilities such as templated search APIs, JWT authentication, DLM enhancements, health metrics, ingest node licensing checks, machine‑learning query extensions, ranking improvements, search enhancements, and TSDB support.

Big DataBug FixElasticsearch
0 likes · 5 min read
Elasticsearch 8.8.0 Release Notes: Bug Fixes, Deprecations, and New Features
Laravel Tech Community
Laravel Tech Community
Feb 22, 2023 · Operations

curl 7.88.1 Release: Bug Fixes for HTTP/2 Multiplexing, Connection Timeout, and Additional Improvements

The curl 7.88.1 update addresses several critical bugs—including HTTP/2 multiplexed data corruption, inaccurate connection timeout handling, uninitialized port values in runtests, missing SRP support checks, HTTP3 fallback when HTTP2 is unavailable, and socketpair EWOULDBLOCK handling—enhancing reliability across platforms.

Bug FixHTTP/2HTTP/3
0 likes · 3 min read
curl 7.88.1 Release: Bug Fixes for HTTP/2 Multiplexing, Connection Timeout, and Additional Improvements
IT Services Circle
IT Services Circle
Oct 11, 2022 · Operations

Screen Flickering on Fedora 35 After Linux Kernel 5.19.12 Upgrade and Intel's Fix

Users of Fedora 35 reported severe screen flickering after upgrading to Linux kernel 5.19.12‑100.fc35, a problem not seen in the previous 5.19.11‑100.fc35 kernel, which Intel engineers identified as a potential LCD power‑sequencing delay and fixed in kernel 5.19.13.

Bug FixFedoraIntel
0 likes · 3 min read
Screen Flickering on Fedora 35 After Linux Kernel 5.19.12 Upgrade and Intel's Fix
Laravel Tech Community
Laravel Tech Community
Aug 28, 2022 · Frontend Development

jQuery 3.6.1 Release Highlights and Changes

The jQuery 3.6.1 maintenance update introduces infrastructure improvements, a focus‑related bug fix, significant performance gains for jQuery.trim, and removes outdated links, while also preparing the library for native String#trim support in older browsers.

Bug FixPerformanceRelease Notes
0 likes · 3 min read
jQuery 3.6.1 Release Highlights and Changes
Laravel Tech Community
Laravel Tech Community
Jul 31, 2022 · Big Data

Elasticsearch 8.3.3 Release Notes: Bug Fixes, Enhancements, and Security Updates

Elasticsearch 8.3.3, a Java‑based distributed search engine built on Lucene, introduces a series of bug fixes across core infrastructure, mapping, monitoring, packaging, and security, as well as new security‑related enhancements such as OIDC idle‑connection handling.

Big DataBug FixElasticsearch
0 likes · 2 min read
Elasticsearch 8.3.3 Release Notes: Bug Fixes, Enhancements, and Security Updates
Laravel Tech Community
Laravel Tech Community
May 15, 2022 · Backend Development

PHP 8.1.6 Released – Comprehensive Bug‑Fix Update

PHP 8.1.6, a maintenance release of the popular server‑side language, has been made available, bringing numerous bug fixes across core, date handling, FFI, FPM, hash, iconv, intl, mbstring, MySQLi, SPL, streams, and zlib components, and the PHP team encourages all 8.1 users to upgrade.

BackendBug FixPHP
0 likes · 4 min read
PHP 8.1.6 Released – Comprehensive Bug‑Fix Update
ByteDance ADFE Team
ByteDance ADFE Team
Jan 25, 2022 · Mobile Development

Root Cause Analysis of Automatic Coupon Redemption Caused by Android Activity Rebirth

This article analyzes a puzzling case where coupons appeared to be redeemed automatically in a mobile app, tracing the issue to Android's activity rebirth mechanism, explaining the lifecycle, memory reclamation, state saving, and presenting a robust fix to prevent the bug.

Activity LifecycleAndroidBug Fix
0 likes · 15 min read
Root Cause Analysis of Automatic Coupon Redemption Caused by Android Activity Rebirth
Aikesheng Open Source Community
Aikesheng Open Source Community
Dec 31, 2021 · Databases

SQLE 1.2112.0 Release Notes – New Features, Optimizations, and Bug Fixes

The SQLE 1.2112.0 release introduces index optimization, scheduled deployment, enhanced rule configuration, SQL autocomplete, cloud database support, several UI improvements, and a critical bug fix for rule‑crash issues, while providing links to the repository, documentation, and related resources.

Bug FixDatabaseFeature Update
0 likes · 4 min read
SQLE 1.2112.0 Release Notes – New Features, Optimizations, and Bug Fixes
Aikesheng Open Source Community
Aikesheng Open Source Community
Sep 19, 2021 · Databases

Weekly DBLE & DTLE Open-Source Middleware Update and Community News

This weekly bulletin from the DBLE community presents curated technical news, video courses, event announcements, detailed DBLE and DTLE development updates, bug fixes, and upcoming plans, providing valuable insights for developers working with MySQL middleware and open‑source database solutions.

Bug FixDBLEDTLE
0 likes · 3 min read
Weekly DBLE & DTLE Open-Source Middleware Update and Community News
Tencent IMWeb Frontend Team
Tencent IMWeb Frontend Team
Aug 26, 2021 · Frontend Development

How to Fix HTML Entity Bugs That Break Rich Text Rendering

This article explains why HTML entities like "<" and ">" can disappear in rich‑text fields, analyzes the underlying tokenizer state machine, and provides a lightweight hack that inserts empty comment nodes to preserve the original text without breaking legacy rendering logic.

Bug FixEntityParsing
0 likes · 12 min read
How to Fix HTML Entity Bugs That Break Rich Text Rendering
Laravel Tech Community
Laravel Tech Community
Aug 2, 2021 · Backend Development

PHP 8.0.9 Release: Bug Fixes and Updates

PHP 8.0.9 has been released as a bug‑fix version, encouraging all PHP 8.0 users to upgrade, and it includes numerous core, Intl, OpenSSL, PCRE, Reflection, and Standard component fixes detailed in the official changelog.

BackendBug FixPHP8
0 likes · 3 min read
PHP 8.0.9 Release: Bug Fixes and Updates
Laravel Tech Community
Laravel Tech Community
Apr 5, 2021 · Fundamentals

Python 3.9.3 and 3.8.9 Release Notes: Security Fixes and Improvements

Python 3.9.3 and 3.8.9 were released early with multiple security patches, OpenSSL CVE fixes, module hardening, FTP PASV safety, audit hooks, Unicode handling improvements, and various bug fixes for syntax errors, import cycles, recursion limits, SSL context, and SMTP authentication.

Bug FixPythonRelease Notes
0 likes · 4 min read
Python 3.9.3 and 3.8.9 Release Notes: Security Fixes and Improvements
Architecture Digest
Architecture Digest
Jan 24, 2021 · Databases

Debugging a High‑Load SQL Query: Index Miss and Temporary Fix

A production MySQL database suffered CPU overload due to a high‑volume query that bypassed an index because a leftmost column was missing, leading to full‑table scans, and the issue was resolved by adding a new composite index and correcting validation annotations in the Java code.

Bug FixCode ReviewIndexing
0 likes · 8 min read
Debugging a High‑Load SQL Query: Index Miss and Temporary Fix
Laravel Tech Community
Laravel Tech Community
Jan 21, 2021 · Backend Development

RabbitMQ 3.8.10 Released: Core Server Bug Fixes and Feature Enhancements

RabbitMQ 3.8.10 has been released, introducing core server bug fixes such as preventing unlimited log segment growth when repeatedly polling a quorum queue with basic.get, and adding a new reject-publish max-length overflow policy for quorum queues, alongside other enhancements.

AMQPBackendBug Fix
0 likes · 2 min read
RabbitMQ 3.8.10 Released: Core Server Bug Fixes and Feature Enhancements