# ReactOS NewCC Cache Implementation Addresses Filesystem Mapping Limitations

DevFeed: [ReactOS NewCC Cache Implementation Addresses Filesystem Mapping Limitations](<https://devfeed.tech/articles/newsletter-82-32948.md>)

Original publisher: [Read original article](<https://reactos.org/blogs/newsletter-82/>)

Published: 2011-04-09T00:00:00Z

Content type: news

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>), [Caching](<https://devfeed.tech/topics/caching.md>), [Filesystems](<https://devfeed.tech/topics/filesystems.md>), [unit tests](<https://devfeed.tech/topics/unit-tests.md>)

Tags: [cache](<https://devfeed.tech/tags/cache.md>), [filesystems](<https://devfeed.tech/tags/filesystems.md>), [free](<https://devfeed.tech/tags/free.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>), [structure](<https://devfeed.tech/tags/structure.md>), [unit-tests](<https://devfeed.tech/tags/unit-tests.md>), [win32](<https://devfeed.tech/tags/win32.md>), [winapi](<https://devfeed.tech/tags/winapi.md>)

## AI overview

The article reports on ReactOS work to replace its existing common cache implementation. It describes efforts to resolve dependencies between the cache and memory manager, unit-test crashes, and a 4GB offset-mapping limitation affecting some filesystems. The NewCc branch reportedly addressed the mapping issue and could install and boot on an ext3 partition.

## Source excerpt

NewCC Status A while back Art Yerkes merged in a significant part of his new common cache implementation into trunk. This merge was intended to lay the foundation for the eventual replacement of the current common cache, which will happen once Art clears up some inconsistencies in how the sections data structure is treated by the memory manager and the common cache. Sections management is the responsibility of the memory manager but provide functionality the common cache relies on.