Re: Cannot change RAID array check speed

[David Niklas]

I forgot to mention that I also tested with Kernel version 6.14. It has
the same problem.

Thanks again,
David

On Sun, 15 Feb 2026 22:08:43 -0500
David Niklas <simd@xxxxxxxxxxx> wrote:
> Hello,
> I upgraded my kernel from 6.9 to 6.17. They're both the "same" custom
> config. I tried:
> 
> # echo 200000 > /sys/devices/virtual/block/md7/md/sync_speed
> bash: /sys/devices/virtual/block/md7/md/sync_speed: Permission denied
> # id
> uid=0(root) gid=0(root) groups=0(root)
> 
> This used to work. Any ideas as to what I could have set wrong? I
> haven't a clue!
> 
> Is there a security debugging tool or a log-file I could use to trace
> this down?
> 
> Thanks,
> David