anyway on another topic, has anyone had issues with nix flake check when you have a lot of hosts? I've found the python vm test coredumping more as I've added more hosts (and will just pass if I rerun them twice with half the hosts each), systemd-coredump points to the pid of one of the python tests and contains systemd-coredump[134485]: Resource limits disable core dumping for process 123011 (python3).

i'm guessing theres some resource limits, but i'm not sure where they might be of for what service (perhaps nix daemon)?

anyway on another topic, has anyone had issues with nix flake check when you have a lot of hosts? I've found the python vm test coredumping more as I've added more hosts (and will just pass if I rerun them twice with half the hosts each), systemd-coredump points to the pid of one of the python tests and contains systemd-coredump[134485]: Resource limits disable core dumping for process 123011 (python3).

i'm guessing theres some resource limits, but i'm not sure where they might be or for what service (perhaps nix daemon)?

In terms of overall system usage, I have many 10s of GB RAM free and no
noticeable strain on CPU or anything. I've been continuously running
tests (with minor changes to ensure all systems rebuild everytime + non-cached) and it's quite non-deterministic :(

I'm starting to think it could be the test-driver.py, I see it using exec() and join() which are red flags to me from some python multiprocessing i've done

fails with 4096 as well, the accompanying python error (which I think I forgot to mention earlier is:

       > Fatal Python error: _enter_buffered_busy: could not acquire lock for <_io.BufferedWriter name=''> at interpreter shutdown, possibly due to daemon threads
       > Python runtime state: finalizing (tstate=0x434b00)
       >
       > Current thread 0x00007ffff77ec340 (most recent call first):
       > 
       > /nix/store/bmxafbqrlvcwpcwd21irmirid4rkpank-stdenv-linux/setup: line 1286:     7 Aborted                 (core dumped) LOGFILE=/dev/null tests='exec(os.environ["testScript"])' /nix/store/va2yrwawaqbk676s0a0j9vcr8fj3bijf-nixos-test-driver-profiles/bin/nixos-test-driver

In reply to @d4hines:matrix.org
On the topic of escape hatches and onborading, do you think I could get a lot of the benefit of devos by basically using it as a way of interacting with home-manager on, say, an Arch linux installation?

In reply to @d4hines:matrix.org
On the topic of escape hatches and onborading, do you think I could get a lot of the benefit of devos by basically using it as a way of interacting with home-manager on, say, an Arch linux installation?

In reply to @kraftnix:matrix.org
given the non-deterministic nature of the issue i'll repeat the build again quite a few times until i'm sure its resolved