# Newsletter 80

DevFeed: [Newsletter 80](<https://devfeed.tech/articles/newsletter-80-32946.md>)

Original publisher: [Read original article](<https://reactos.org/blogs/newsletter-80/>)

Published: 2011-02-03T00:00:00Z

Content type: article

Language: en

Sources: [Front Page on ReactOS Website](<https://devfeed.tech/sources/front-page-on-reactos-website.md>)

Topics: [ReactOS](<https://devfeed.tech/topics/reactos.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [Filesystems](<https://devfeed.tech/topics/filesystems.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Kernel](<https://devfeed.tech/topics/kernel.md>)

Tags: [cache](<https://devfeed.tech/tags/cache.md>), [filesystems](<https://devfeed.tech/tags/filesystems.md>), [free](<https://devfeed.tech/tags/free.md>), [io](<https://devfeed.tech/tags/io.md>), [kernel](<https://devfeed.tech/tags/kernel.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [os](<https://devfeed.tech/tags/os.md>), [react](<https://devfeed.tech/tags/react.md>), [reactos](<https://devfeed.tech/tags/reactos.md>), [testing](<https://devfeed.tech/tags/testing.md>), [win32](<https://devfeed.tech/tags/win32.md>), [winapi](<https://devfeed.tech/tags/winapi.md>)

## AI overview

This ReactOS newsletter reports on testing filesystem components with Microsoft's FASTFAT driver. The current common cache implementation blocks the effort, while a replacement implementation progresses further but still has bugs and missing functionality. The article also discusses related kernel and I/O manager issues.

## Source excerpt

Component Testing As more components relating to filesystems sees implementation in ReactOS, they need to be tested. Pierre Schweitzer decided to try using Microsoft's FASTFAT driver to help in the effort, as using it successfully in ReactOS would indicate development is on the right track. Unfortunately, ReactOS' current common cache implementation effectively blocks that attempt due to its sorry state. The common cache has been touched upon in the past and mention was made of its problems.