Hi Cédric
Thank you for your input. Meanwhile, we have tested several things. First we crafted a runscript that would trigger the error at roughly 50% on these circumstances:
using kernel base-hw running on qemu on our gitlab CI/CD runner inside docker on two distinct physical servers at our hoster We went back to the Genode 23.11 release, on which the same runscript and circumstances would produce the error at roughly 10% of the runs.
We also noticed the error happening on more complex scenarios on other architectures, namely to download boot images.
Currently, we assume the problem to be within the libc or within the File_system session.
The following lxip issues/discussions could be relevant. However, it seems that our error is stack independent.
https://github.com/genodelabs/genode/issues/5104#issuecomment-1915295169 https://github.com/genodelabs/genode/issues/4810
Best regards Stefan