Follow up on R 4.0.2 GUI does not terminate with Cmd+Q

On 13 Dec 2020, at 20:37, Simon Urbanek <simon.urbanek at R-project.org> wrote:

Petar,

there are two options that would be helpful to us to trace it:

1) use the Debug version of the GUI (from https://mac.R-project.org/ <https://mac.r-project.org/> - make sure you pick the one that matches your R version) and check the console when that happens - you should likely see some output there

2) when using the regular version and this happens, please open the Activity Monitor, select the R process, click on the little wheel in the tool bar and select "Sample Process" and send me the resulting file.

Thanks,
Simon

On 14/12/2020, at 1:47 AM, Petar Milin <pmilin at gmail.com <mailto:pmilin at gmail.com>> wrote:

Following on this thread
	https://stat.ethz.ch/pipermail/r-sig-mac/2020-October/013752.html <https://stat.ethz.ch/pipermail/r-sig-mac/2020-October/013752.html> <https://stat.ethz.ch/pipermail/r-sig-mac/2020-October/013752.html <https://stat.ethz.ch/pipermail/r-sig-mac/2020-October/013752.html>>

I did upgrade to 4.0.3, but the same problem persist: occasionally R refuses to terminate and I need to do the Force Quit. This happens only with GUI and not if I use RStudio.

The difference in behaviour between 4.0.2 and 4.0.3 is that the former closed the GUI but R remain to run and started heating the machine. The latter's GUI stays open and just hangs. Activity Monitor shows that this is taking a lot of resources.

Any suggestion?

Many thanks!
Petar
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