Re: Filesystem errors on armv7 -current

On 10/22/26 06:35, bob prohaska wrote:
> On Wed, Oct 21, 2026 at 10:32:07PM -0700, Bakul Shah wrote:
>>
>> One can buy a cheap inline USB power meter or tester to see
>> what sort of voltage/current is in use. Fancier ones such as
>> FNIRSI FNB48P that will let you see a realtime graph of
>> voltage/current at various sampling rates + you can upload
>> this data (+ there is vibe coded s/w to run on linux/mac for
>> this as well). Very useful for debugging this sort of
>> problems.
> 
> I have chopped a USB cable to bring out the power leads and
> connected them to a voltmeter in the past. That would seem
> adequate to identify a faulty power supply. 

Not necessarily adequate to detect short enough term voltage drops that
still matter on that shorter time scale?

> I haven't tried
> it in this specific case, but  given the absence of messages
> from umass other than those at boot, is there any point?
> 
> Thanks for writing!
> 
> bob prohaska
>  
> 
> 


-- 
===
Mark Millard
marklmi at yahoo.com