Re: Filesystem errors on armv7 -current

On October 28, 2026 5:09:15 PM GMT+02:00, bob prohaska <fbsd@www.zefox.net> wrote:
>On Wed, Oct 28, 2026 at 04:11:02AM +0000, void wrote:
>> On Wed, Oct 21, 2026 at 11:33:06AM -0700, bob prohaska wrote:
>> [filesystem errors]
>> 
>> Have you tried making an nfs server on a more powerful box
>> and exporting /usr/src ports obj and optionally ccache to your rpi2b?
>> 
>> I have a setup like this and it works well.
>> -- 
>
>I haven't, simply because I'd like to understand what went wrong,
>to the extent of my ability.
>
>In the meantime I've added a few files to the repository of errors at
>http://www.zefox.net/~fbsd/rpi2/disktrouble/
>
>In particular, there are now two diskscan reports taken while accessing
>the disk via the same powered hub (and hub power supply) that presided
>over the initial problem. Near as I can tell, the hub does not interfere
>with the performance of the disk. 
>
>Thanks for writing,
>
>bob prohaska
>
>

i wonder where is power even going in that setup? random powered hub just connects +5v in parallel, perhaps with diodes (500-700mv straight down the drain (or junction, lol)). worse if nothing there at all

one could cut this random powersharing by cutting +5v in usb and wiring dedicated psu there. possibly not via hairthin wires. btw is the data even ok there with random cables?

usb hub could be probably ok for this. but it's power likely not. nevermind that you even had wrong dc plug in wrong jack. and some of those jacks aren't for high current anyway. usb hub is more like a thing to plug some 100ma devices in. with everything designed to that usecase