Skip to content
Zipline Zipline Service Documentation

    MEMORY_USAGE_UNKNOWN

    published Last Updated: Oct 9, 2026 HW: all
    Applicable alarms (1)
    MEMORY_USAGE_UNKNOWN
    Likely outcomes (350 missions) — click to expand

    Based on 350 missions where this alarm fired in the last 90 days as of 2026-10-13

    Frequently co-occurring alarms (% of the 350 missions above)

    SOFTWARE_CONFIGURATION_EVALUATION_INCOMPLETE 98.6% of missions IRQ_AFFINITY_SETUP_INCOMPLETE 98% of missions BLOWER_CONSECUTIVE_FRACTIONAL_RPM_ERROR 93.4% of missions CELL_MODEM_NOT_CONNECTED 93.1% of missions WIRELESS_REGDOMAIN_INCORRECT 87.7% of missions

    Aggregated from fleet operations and refreshed daily. Individual outcomes may vary by site and configuration.

    Background

    Section titled “Background”

    This alarm fires when we can’t sample the state of the memory in linux. Without knowing how much memory we are using, its unsafe to fly.

    This should never be set in production, if it is there has been a software regression.

    Troubleshooting Steps

    Section titled “Troubleshooting Steps”
    1 action
    Do NOT reboot the vehicle, something has gone really wrong and live debugging over SSH will be crucial.

    Did this guide help you get unblocked?

    Open suggestions

    There are no open suggestions.

    Open pull requests

    There are no open pull requests.

    Edit this page on GitHub
    Topic history
    1. 2026-10-07 Susan Minne Bulk/mechanical change
      Replace individual guide ownership with system technical contacts
      Commit dca5a1a
    2. 2026-09-24 Susan Minne Bulk/mechanical change
      chore: backfill aircraft owner identities batch 3
      Commit 8ff7b9b
    3. 2026-09-23 Susan Minne Bulk/mechanical change
      docs: remove obsolete Confluence metadata
      Commit 2d5374e
    4. 2026-09-13 Susan Minne Bulk/mechanical change
      feat: add MX approval metadata to topics
      Commit 406a785
    5. 2026-06-12 Susan Minne Bulk/mechanical change
      Update troubleshooting topics and escalation paths
      Commit 166da10
    6. 2026-05-28 Susan Minne Bulk/mechanical change
      Remove redundant topic applicability banners
      Commit e561ad0
    7. 2026-05-14 Susan Minne Bulk/mechanical change
      Review of migrated topics and set to published
      Commit d5f3ec5
    8. 2026-05-06 Gavin Edwards Bulk/mechanical change
      Remove redundant Engineer Owner table from topic body (#298)
      Commit 1619f07 PR #298
    9. 2026-05-04 Gavin Edwards Bulk/mechanical change
      Batch 7: 47 new topics from full 4-gate pipeline
      Commit e5e26ab
    10. 2026-04-23 Gavin Edwards Bulk/mechanical change
      Replace all topics with 210 v3-generated baseline content
      Commit 9b61a6e
    11. 2026-04-15 Gavin Edwards Bulk/mechanical change
      Categorize 373 regenerated topics into subdirectories; drop 15 meta pages
      Commit 9bdc40f
    12. 2026-04-15 Gavin Edwards Bulk/mechanical change
      Replace topic corpus: 388 LLM-regenerated topics (round 1)
      Commit f950bfa
    13. 2026-04-14 Gavin Edwards Bulk/mechanical change
      Tag all 427 topics draft with DO NOT USE warning admonition
      Commit 1783498
    Baseline import
    Initial import into service_docs
    Imported by Gavin Edwards on 2026-04-10
    Fix 47 validation errors: question types, missing steps, invalid status/owner enums
    Commit 4183f19
    Suggest a change