Pulse/internal/monitoring
rcourtman 3e90737448 Fix guest agent OS info calls causing OpenBSD VM crashes (related to #692)
Add defensive mitigation to prevent repeated guest-get-osinfo calls that
trigger buggy behavior in QEMU guest agent 9.0.2 on OpenBSD 7.6.

The issue: OpenBSD doesn't have /etc/os-release (Linux convention), and
qemu-ga 9.0.2 appears to spawn excessive helper processes trying to read
this file whenever guest-get-osinfo is called. These helpers don't clean
up properly, eventually exhausting the process table and crashing the VM.

The fix: Track consecutive OS info failures per VM. After 3 failures,
automatically skip future guest-get-osinfo calls for that VM while
continuing to fetch other guest agent data (network interfaces, version).
This prevents triggering the buggy code path while maintaining most guest
agent functionality.

The counter resets on success, so if the guest agent is upgraded or the
issue is resolved, Pulse will automatically resume OS info collection.

Related to #692
2025-11-11 22:27:22 +00:00
..
backoff.go feat: implement error handling with circuit breakers and backoff (Phase 2 Task 7) 2025-10-20 15:13:37 +00:00
backoff_test.go test: add comprehensive unit tests for backoff and circuit breaker (Phase 2 Task 9a) 2025-10-20 15:13:38 +00:00
backup_guard_test.go Guard PBS backups from failed polls 2025-11-05 19:26:20 +00:00
ceph.go Fix settings security tab navigation 2025-10-11 23:29:47 +00:00
circuit_breaker.go feat: enhance scheduler health API with rich instance metadata 2025-10-20 15:13:38 +00:00
circuit_breaker_test.go test: add comprehensive unit tests for backoff and circuit breaker (Phase 2 Task 9a) 2025-10-20 15:13:38 +00:00
container_disk_usage.go feat: add professional logging with runtime configuration and performance optimization 2025-10-20 15:13:38 +00:00
diagnostic_snapshots.go Refine Proxmox node memory fallback (#582) 2025-10-22 15:36:26 +00:00
docker_commands.go feat: add docker agent command handling 2025-10-15 19:27:19 +00:00
docker_commands_test.go chore: snapshot current changes 2025-11-02 22:47:55 +00:00
fake_executor_integration.go test: add comprehensive integration test harness for adaptive polling (Phase 2 Task 9c) 2025-10-20 15:13:38 +00:00
fs_filters.go Ignore read-only guest filesystems in disk aggregation 2025-10-14 16:13:53 +00:00
fs_filters_test.go Ignore read-only guest filesystems in disk aggregation 2025-10-14 16:13:53 +00:00
harness_integration.go Surface LXC interface IPs via PVE interfaces API (#596) 2025-10-23 08:07:32 +00:00
helpers_test.go Expand monitoring and discovery test coverage 2025-10-16 08:17:08 +00:00
integration_integration_test.go test: add soak test with runtime instrumentation (Phase 2 Task 9d) 2025-10-20 15:13:38 +00:00
main_test.go Harden setup token flow and enforce encrypted persistence 2025-10-25 16:00:37 +00:00
metrics.go perf: reduce polling allocations and guest metadata load 2025-10-25 13:12:47 +00:00
metrics_history.go Fix settings security tab navigation 2025-10-11 23:29:47 +00:00
metrics_history_concurrency_test.go Fix settings security tab navigation 2025-10-11 23:29:47 +00:00
monitor.go Fix guest agent OS info calls causing OpenBSD VM crashes (related to #692) 2025-11-11 22:27:22 +00:00
monitor_docker_test.go Refactor: Code cleanup and localStorage consolidation 2025-11-04 21:50:46 +00:00
monitor_health_test.go feat: enhance scheduler health API with rich instance metadata 2025-10-20 15:13:38 +00:00
monitor_host_agents_test.go perf: reduce polling allocations and guest metadata load 2025-10-25 13:12:47 +00:00
monitor_memory_test.go Fix inflated RAM usage reporting for LXC containers 2025-11-06 00:16:18 +00:00
monitor_pmg_test.go Fix PMG API parameter issues causing 400 errors 2025-11-05 19:28:37 +00:00
monitor_polling.go Fix guest agent disk data regression on Proxmox 8.3+ 2025-11-06 18:42:46 +00:00
monitor_snapshots_test.go Fix inflated RAM usage reporting for LXC containers 2025-11-06 00:16:18 +00:00
monitor_storage_test.go Fix inflated RAM usage reporting for LXC containers 2025-11-06 00:16:18 +00:00
poller.go feat: add professional logging with runtime configuration and performance optimization 2025-10-20 15:13:38 +00:00
ratetracker.go Fix settings security tab navigation 2025-10-11 23:29:47 +00:00
ratetracker_concurrency_test.go Fix settings security tab navigation 2025-10-11 23:29:47 +00:00
reload.go Propagate config updates to settings nodes (#588) 2025-10-22 13:45:13 +00:00
scheduler.go feat: enhance scheduler health API with rich instance metadata 2025-10-20 15:13:38 +00:00
staleness_tracker.go release: prepare v4.25.0 2025-10-22 10:46:18 +00:00
staleness_tracker_test.go test: add comprehensive staleness tracker unit tests (Phase 2 Task 9b) 2025-10-20 15:13:38 +00:00
task_queue.go perf: reduce polling allocations and guest metadata load 2025-10-25 13:12:47 +00:00
temperature.go Improve Docker temperature monitoring documentation for clarity (related to #600) 2025-11-07 15:09:42 +00:00
temperature_service.go Add configurable SSH port for temperature monitoring 2025-11-05 20:03:29 +00:00
temperature_test.go Expand temperature sensor compatibility for SuperIO and AMD CPUs 2025-11-05 18:47:21 +00:00