System hangs while browsing flame graph

[dyumin]

System:

Ubuntu 22.04.3 LTS
Linux tnb 6.2.0-35-generic #35~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Oct  6 10:23:26 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

Steps to reproduce:

• run agent:

  • curl -sL https://github.com/parca-dev/parca-agent/releases/download/v0.26.0/parca-agent_0.26.0_`uname -s`_`uname -m`.tar.gz | tar xvfz - parca-agent
  • sudo ./parca-agent --log-level=debug --node=binary-test --remote-store-address=localhost:7070 --remote-store-insecure

• run parca:

  • curl -sL https://raw.githubusercontent.com/parca-dev/parca/v0.20.0/parca.yaml > parca.yaml
  • docker run -it --network=host -v ./parca.yaml:/etc/parca/parca.yaml ghcr.io/parca-dev/parca:v0.20.0 /parca --config-path="/etc/parca/parca.yaml"

• open http://localhost:7070/, wait for data to update

Result: system hangs after some time (usually under a minute); hard reset is required