Re: [libgpiod][PATCH] tools: tests: replace egrep with grep -E

[Kent Gibson <warthog618@gmail.com>]

On Fri, Jun 02, 2023 at 10:13:35AM +0800, Kent Gibson wrote:
> 
> On a related(??) note, I'm occasionally seeing Oopses when testing this
> - when creating a basic sim with a shell script, not when deleting it.
> In one case after a fresh reboot and on creating the first sim, so it
> looks to be purely the construction.  Yay :-(.
> 

I had thought it would be difficult to reproduce this and so difficult
to bisect.  Fortunately(??) not.  If I run my setup and cleanup scripts[1]
in a tight loop it occurs very readily.  Haven't bisected it yet, but did
test it on 6.1-rc1 and it Oopsed there too, so I would need to go back
further.  What was the initial release containing gpio-sim?

The sim setp is pretty simple - a couple of banks each with a few lines
and hogs.

Could you confirm that you can repeat the problem?
Otherwise I might start thinking there is something broken in my test
environment.

Btw, the loop script is:

#!/bin/env bash
for (( ; ; ))
do
	echo "create sim..."
	./basic_sim.sh
	echo "destroy sim..."
	./clean_sims.sh
done

Cheers,
Kent.
[1] https://github.com/warthog618/gpiosim-rs