Re: random lockups

[Paul Ripke <stix%stix.id.au@localhost>]

On Fri, Oct 20, 2023 at 01:11:15PM -0400, Greg Troxel wrote:
> A different machine has locked up, running recent netbsd-10.  I was
> doing pkgsrc rebuilds in zfs, in a dom0 with 4G of RAM, with 8G total
> physical.  It has a private patch to reduce the amount of memory used
> for ARC, which has been working well.
> 
> All 3 tmux windows show something like
> 
>   [ 373598.5266510] load: 0.00  cmd: bash 21965 [flt_noram5] 0.37u 2.89s 0% 6396k
> 
> and I can switch among them and ^T, but trying to run top is stuck (in
> flt_noram5).  I'll give it an hour or so, and have a look at the
> console.

Curious - do you have swap configured? On what kind of device?
I'm wondering if a pageout is wedged waiting for memory...

-- 
Paul Ripke
"Great minds discuss ideas, average minds discuss events, small minds
 discuss people."
-- Disputed: Often attributed to Eleanor Roosevelt. 1948.