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openclaw - 💡(How to fix) Fix [Bug]: Agent completely frozen - even echo "test" hangs or gets killed 24.04.2026 [1 participants]

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openclaw/openclaw#72296•Fetched 2026-04-27 05:31:57
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After Upgrade to 24.04.2026 OpenClaw agent becomes completely unresponsive. Simplest shell commands (echo "test", id, cat /proc/loadavg) hang indefinitely or are killed with SIGTERM/SIGKILL.

Root Cause

After Upgrade to 24.04.2026 OpenClaw agent becomes completely unresponsive. Simplest shell commands (echo "test", id, cat /proc/loadavg) hang indefinitely or are killed with SIGTERM/SIGKILL.

Fix Action

Fix / Workaround

After Upgrade to 24.04.2026 OpenClaw agent becomes completely unresponsive. Simplest shell commands (echo "test", id, cat /proc/loadavg) hang indefinitely or are killed with SIGTERM/SIGKILL.

  1. Known deadlock issues?
  2. Container-level freeze (cgroup, I/O block)?
  3. Session/process limit being hit?
  4. OpenClaw agent debug logs?
  5. Workaround/fix available?

Code Example

[05:45:12] Exec failed (plaid-sh, signal SIGTERM)
[05:47:25] Exec failed (nimble-c, signal SIGKILL)
[09:26:37] Exec failed (keen-forest, signal SIGTERM)
[09:27:00] Exec failed (tender-pine, signal SIGKILL)

---

echo "test"        -> timed out after 5s
id                 -> timed out after 5s
cat /proc/loadavg  -> timed out after 5s
ps aux             -> killed with SIGTERM
ls -la /tmp        -> timed out after 10s

---

[amber-lagoon] uptime: load average: 2.50, 2.43, 2.05
[amber-lagoon] free: 7.7GB total, 1.5GB used, 6.2GB available
[amber-lagoon] Swap: 0B used

---

Key Finding:

• NOT a resource issue (8 Cores, 8GB RAM, moderate load)
• Even echo "test" hangs → points to I/O block or agent deadlock
• Started today after system update
• One background process worked (amber-lagoon) → suggests session/process limit issue
RAW_BUFFERClick to expand / collapse

Bug type

Regression (worked before, now fails)

Beta release blocker

No

Summary

After Upgrade to 24.04.2026 OpenClaw agent becomes completely unresponsive. Simplest shell commands (echo "test", id, cat /proc/loadavg) hang indefinitely or are killed with SIGTERM/SIGKILL.

Steps to reproduce

OpenClaw agent becomes completely unresponsive. Simplest shell commands (echo "test", id, cat /proc/loadavg) hang indefinitely or are killed with SIGTERM/SIGKILL.

Expected behavior

Actual behavior

Command Timeouts:

[05:45:12] Exec failed (plaid-sh, signal SIGTERM)
[05:47:25] Exec failed (nimble-c, signal SIGKILL)
[09:26:37] Exec failed (keen-forest, signal SIGTERM)
[09:27:00] Exec failed (tender-pine, signal SIGKILL)

Commands That Hung:

echo "test"        -> timed out after 5s
id                 -> timed out after 5s
cat /proc/loadavg  -> timed out after 5s
ps aux             -> killed with SIGTERM
ls -la /tmp        -> timed out after 10s

Only Command That Worked:

[amber-lagoon] uptime: load average: 2.50, 2.43, 2.05
[amber-lagoon] free: 7.7GB total, 1.5GB used, 6.2GB available
[amber-lagoon] Swap: 0B used

OpenClaw version

2026.04.24

Operating system

Linux 6.12.74+deb13+1-amd64 (x64) Ubunto

Install method

Npm

Model

ollama/kimi-k2.6:cloud

Provider / routing chain

Oc - ollama - Kimi cloud

Additional provider/model setup details

Environment:

• OS: Linux 6.12.74+deb13+1-amd64 (x64) • Node.js: v22.22.2 • Hardware: 8 Cores, 8GB RAM • Model: ollama/kimi-k2.6:cloud

Logs, screenshots, and evidence

Key Finding:

• NOT a resource issue (8 Cores, 8GB RAM, moderate load)
• Even echo "test" hangs → points to I/O block or agent deadlock
• Started today after system update
• One background process worked (amber-lagoon) → suggests session/process limit issue

Impact and severity

Agent is non-functional for any task requiring system interaction.

Additional information

Request:

  1. Known deadlock issues?
  2. Container-level freeze (cgroup, I/O block)?
  3. Session/process limit being hit?
  4. OpenClaw agent debug logs?
  5. Workaround/fix available?

extent analysis

TL;DR

The OpenClaw agent's unresponsiveness after the upgrade to version 2026.04.24 may be due to a session or process limit issue, and checking the agent's debug logs and system resource utilization could provide more insights.

Guidance

  • Investigate the system's session and process limits to determine if they are being exceeded, which could cause the agent to hang or be killed with SIGTERM/SIGKILL.
  • Check the OpenClaw agent's debug logs for any error messages or indications of deadlock issues that may be contributing to the problem.
  • Verify that the issue is not related to a resource constraint by monitoring the system's CPU, memory, and disk usage during the time the agent is hanging.
  • Consider running a test with a simple command, like echo "test", in a controlled environment to isolate if the issue is specific to the OpenClaw agent or a broader system problem.

Example

No specific code example is provided as the issue seems to be related to system configuration or the OpenClaw agent itself rather than a coding error.

Notes

The fact that one background process (amber-lagoon) worked suggests that the issue might not be a simple resource problem but rather something more specific to how the OpenClaw agent interacts with the system or its configuration.

Recommendation

Apply a workaround by adjusting the session or process limits if they are found to be the cause, as upgrading to a potentially fixed version is not mentioned as an option in the provided information. This approach is chosen because it directly addresses a likely root cause identified in the issue description.

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FAQ

Expected behavior

#tensor shape#autograd error#model save/load#optimization#mixed precision

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openclaw - 💡(How to fix) Fix [Bug]: Agent completely frozen - even echo "test" hangs or gets killed 24.04.2026 [1 participants]