RE: nrfjprog filling /dev/shm

ble-rox — Mon, 24 Mar 2025 16:33:38 GMT

this is the output of ps -ef showing that hash that you can see in the filenames corresponds to jlinkarm_nrf_worker_linux

However, lsof points to just jlinkarm_

I am guessing these two programs are using the shared memory as IPC.

It takes about 1 hour before 'nrfjprog -p' starts failing after I clear the directory. At that time, all of the files are still open according to lsof. Eventually, these programs exit although I am not sure how long that takes. At that point, some of the files are cleaned up, but the "args" files remain.

RE: nrfjprog filling /dev/shm

Susheel Nuguru — Mon, 24 Mar 2025 06:32:20 GMT

Hi Steve,

The version you are using is the latest one available, I think I need to pass this to the tools teams but before I do that, can you please clarify me if those leftover files are created from nrfjprog? probably an easiest solution is to run a script that monitors and cleans this directory once in a while. How long does it take for that directory to get to that 8 GB size?