* Giuseppe Scrivano: > Florian Weimer <fwei...@redhat.com> writes: >> It could be an old kernel bug: >> >> Task exit is signaled before task resource deallocation, leading to >> bogus EAGAIN errors >> <https://bugzilla.kernel.org/show_bug.cgi?id=154011> >> >> There have been recent namespace optimizations which introduce a similar >> pattern there. While they improve throughput in many cases, continuous >> allocation and deallocation can now fail, even though the program logic >> ensures that resources are never exceeded. >> >> Guiseppe, any suggestions how to debug this? > > the only optimization I am aware of that could cause a similar issue is > the delayed IPC namespace cleanup. That would cause the IPC namespace > creation to fail though, not posix_spawn. > > If you believe the failure can be related to reaching the pids limit for > the cgroup, could you please check the actual limit inside the > container? You could check the value of /sys/fs/cgroup/pids.max inside > the container (assuming cgroupv2 and a cgroup namespace for the container). > > Please let me know if that helps.
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