Euphony Stylus kernel

[Gavin1977]

See post 24 - Seems interesting that the Kernel for Euphony Audios playback within Linux is freely available to use in any Linux build... any thoughts?

 

https://bbs.archlinux.org/viewtopic.php?id=235988

 

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[Nenon]

This is old. It is version 4.1.13. They were using version 4.18.7 last time I checked. 

If you are going to spend the time to compile a kernel, you might be better off using AudioLinux and spend the time trying the various customizations there. Alternatively you can just install ArchLinux with kernel 4.18.7.

[FredericV]

On 7/11/2019 at 7:39 PM, Nenon said:

This is old. It is version 4.1.13. They were using version 4.18.7 last time I checked. 

If you are going to spend the time to compile a kernel, you might be better off using AudioLinux and spend the time trying the various customizations there. Alternatively you can just install ArchLinux with kernel 4.18.7.

Being a Linux engineer, I would not recommend using these specific 4.X kernels.

4.1.13 has potential data corruption bugs under high IO load - which we found in the lab on some test machines. Just starting an rsync to a machine with this kernel is already enough to corrupt a filesystem. Then boot the target machine with a regular kernel, do the rsync again, and you can see how many files it corrupted and how long it takes to run it's diff algo. It can be reproduced reboot after reboot.

It was the first time I ever wondered why rsync was not progressing as usual: it was stalling and in big files it had to just transfer small parts of the file, leading to transfer speeds of a few kilobytes per second while we have gigabit (as it was wasting most of it's time at checksuming which runs at both sides of the rsync).

The more recent 4.18.7 with bfq IO scheduler no longer have this issue, but sounds different than 4.1.13.

More recent 5.x realtime kernels without bfq sound better to my ears than these modified 4.X kernels, and can be found from several open source repo's which don't suffer from the difficulties of obtaining the source code.

[Miska]

On 7/11/2019 at 4:31 PM, Gavin1977 said:

See post 24 - Seems interesting that the Kernel for Euphony Audios playback within Linux is freely available to use in any Linux build... any thoughts?

 

Since Linux kernel is under GPL license, that's the case always when it is involved...