Re: bcm283x_dwcotg0: usbpf: Out of memory

On 4/16/26 08:15, void wrote:
> just to update, I had to quickly add more swap,
> otherwise buildworld crashes. It seems more swap is needed
> the more N in make -jN buildworld is used.
> 
> For the time being I quickly made three 3gb swap partitions
> on a usb2 stick and removed the default growfs swapfile
> and now make -j3 buildworld is proceeding, if slowly.
> 
> I've not tested yet whether writing to the stick is
> faster than writing to nfs. if not, there's always the option
> of mounting swap over nfs.

You are likely getting console messages like (lines wrapped differently
here):

warning: total configured swap (??? pages) exceeds maximum recommended
amount (??? pages).
warning: increase kern.maxswzone or reduce amount of swap.

Indicating potential mis-tunning that can result in deadlocks being more
likely from kernel memory management, if I understand right. Also, as I
understand, actually increasing kern.maxswzone trades off the amounts of
other types of kernel(?) memory available. (Not that I know the detailed
tradeoffs.)

A RPi2B has 1 GiByte of RAM. As I remember, armv7 (so: 32-bit) starts
putting out that notice-pair at somewhat under 2 GiBytes of swap space
(somewhere between 1.7 GiBytes and 2.0 GiBytes?). (64-bit has a much
larger ratio before getting such notices, as I remember.)

If Bob is still using large swap spaces, there is some possibility that
such has contributed to running out of memory, not that I know how to
validate such happened.

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