Re: Arm v7 RPi2 -current unresponsive to debugger escape during buildworld

On Mon, Nov 10, 2025 at 12:44:27AM +0000, void wrote:
> On Thu, Nov 06, 2025 at 06:04:52AM -0800, bob prohaska wrote:
> > For roughly the past year I've been seeing buildworld become unresponsive
> > compiling -current on a Pi2 (armv7). The stoppages seem random, sometimes
> > with no visible memory pressure, other times while swapping. The machine
> > uses a USB mechanican hard drive for root and swap.
> 
> Maybe related,
> 
> I got a
> Nov  9 23:59:33 rpi2b-1 cc[39999]: stack overflow detected; terminated
> Nov  9 23:59:39 rpi2b-1 kernel: pid 39999 (cc), jid 0, uid 0: exited on signal 6 (core dumped)
> 
> trying to build a nodebug (16:main) kernel from n281766 with -j4 on armv7
> (rpi2b+) but using src and obj and ccache dirs mounted on fast nfs
> 
> Trying again wiht -j2.
> -- 
> 

Did the machine hang entirely? If so, how did you recover control?

Thanks for writing,

bob prohaska