Retina agent failed to be initialized on AWS EKS due to 'create raw tracepoint: not supported'

[WangSiyao]

Describe the bug
retina-agent DaemonSet failed to be created.

To Reproduce
Install Standard Control Plane with dropreason plugin on AWS EKS.

Expected behavior
DaemonSet should be created without error.

Screenshots
Error logs:
`ts=2025-10-31T04:45:30.238Z level=info caller=dropreason/ebpfsetup_linux.go:75 msg="Detected kernel" version=6.1.0
ts=2025-10-31T04:45:30.557Z level=info caller=common/common_linux.go:79 msg="perf reader created" Map=PerfEventArray(retina_dropreason_events)#11 PageSize=4096 BufferSize=65536
ts=2025-10-31T04:45:30.557Z level=error caller=dropreason/ebpfsetup_linux.go:145 msg="Failed to attach" program=inet_csk_accept_fexit error="create raw tracepoint: not supported"
ts=2025-10-31T04:45:30.558Z level=error caller=dropreason/ebpfsetup_linux.go:145 msg="Failed to attach" program=nf_hook_slow_fexit error="create raw tracepoint: not supported"
ts=2025-10-31T04:45:30.558Z level=error caller=dropreason/ebpfsetup_linux.go:145 msg="Failed to attach" program=tcp_v4_connect_fexit error="create raw tracepoint: not supported"
ts=2025-10-31T04:45:30.558Z level=error caller=dropreason/ebpfsetup_linux.go:145 msg="Failed to attach" program=nf_nat_inet_fn_fexit error="create raw tracepoint: not supported"
ts=2025-10-31T04:45:30.558Z level=error caller=dropreason/ebpfsetup_linux.go:145 msg="Failed to attach" program=__nf_conntrack_confirm_fexit error="create raw tracepoint: not supported"
ts=2025-10-31T04:45:30.558Z level=error caller=dropreason/ebpfsetup_linux.go:154 msg="No programs attached, cannot collect drop metrics"
ts=2025-10-31T04:45:30.562Z level=info caller=packetforward/packetforward_linux.go:211 msg="Context is done, packetforward will stop running"
ts=2025-10-31T04:45:30.562Z level=info caller=server/server.go:79 msg="gracefully shutting down HTTP server..."
ts=2025-10-31T04:45:30.562Z level=info caller=server/server.go:71 msg="HTTP server stopped with err: http: Server closed"
ts=2025-10-31T04:45:30.562Z level=panic caller=controllermanager/controllermanager.go:112 msg="Error running controller manager" error="failed to reconcile plugin dropreason: failed to init plugin: No programs attached, cannot collect drop metrics" errorVerbose="No programs attached, cannot collect drop metrics\ngithub.com/microsoft/retina/pkg/plugin/dropreason.(*dropReason).attachFexitPrograms\n\t/go/src/github.com/microsoft/retina/pkg/plugin/dropreason/ebpfsetup_linux.go:155\ngithub.com/microsoft/retina/pkg/plugin/dropreason.(*dropReason).Init\n\t/go/src/github.com/microsoft/retina/pkg/plugin/dropreason/dropreason_linux.go:171\ngithub.com/microsoft/retina/pkg/managers/pluginmanager.(*PluginManager).Reconcile\n\t/go/src/github.com/microsoft/retina/pkg/managers/pluginmanager/pluginmanager.go:106\ngithub.com/microsoft/retina/pkg/managers/pluginmanager.(*PluginManager).Start\n\t/go/src/github.com/microsoft/retina/pkg/managers/pluginmanager/pluginmanager.go:159\ngithub.com/microsoft/retina/pkg/managers/controllermanager.(*Controller).Start.func1\n\t/go/src/github.com/microsoft/retina/pkg/managers/controllermanager/controllermanager.go:102\ngolang.org/x/sync/errgroup.(*Group).Go.func1\n\t/go/pkg/mod/golang.org/x/sync@v0.17.0/errgroup/errgroup.go:93\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_arm64.s:1223\nfailed to init plugin\ngithub.com/microsoft/retina/pkg/managers/pluginmanager.(*PluginManager).Reconcile\n\t/go/src/github.com/microsoft/retina/pkg/managers/pluginmanager/pluginmanager.go:107\ngithub.com/microsoft/retina/pkg/managers/pluginmanager.(*PluginManager).Start\n\t/go/src/github.com/microsoft/retina/pkg/managers/pluginmanager/pluginmanager.go:159\ngithub.com/microsoft/retina/pkg/managers/controllermanager.(*Controller).Start.func1\n\t/go/src/github.com/microsoft/retina/pkg/managers/controllermanager/controllermanager.go:102\ngolang.org/x/sync/errgroup.(*Group).Go.func1\n\t/go/pkg/mod/golang.org/x/sync@v0.17.0/errgroup/errgroup.go:93\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_arm64.s:1223\nfailed to reconcile plugin dropreason\ngithub.com/microsoft/retina/pkg/managers/pluginmanager.(*PluginManager).Start\n\t/go/src/github.com/microsoft/retina/pkg/managers/pluginmanager/pluginmanager.go:163\ngithub.com/microsoft/retina/pkg/managers/controllermanager.(*Controller).Start.func1\n\t/go/src/github.com/microsoft/retina/pkg/managers/controllermanager/controllermanager.go:102\ngolang.org/x/sync/errgroup.(*Group).Go.func1\n\t/go/pkg/mod/golang.org/x/sync@v0.17.0/errgroup/errgroup.go:93\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_arm64.s:1223"
panic: Error running controller manager

goroutine 83 [running]:
go.uber.org/zap/zapcore.CheckWriteAction.OnWrite(0x0?, 0x1?, {0x0?, 0x0?, 0x0?})
/go/pkg/mod/go.uber.org/zap@v1.27.0/zapcore/entry.go:196 +0x78
go.uber.org/zap/zapcore.(*CheckedEntry).Write(0x4000ac0b60, {0x400454f000, 0x1, 0x1})
/go/pkg/mod/go.uber.org/zap@v1.27.0/zapcore/entry.go:262 +0x1b8
go.uber.org/zap.(*Logger).Panic(0x4000abb2c0?, {0x3d3f583?, 0x0?}, {0x400454f000, 0x1, 0x1})
/go/pkg/mod/go.uber.org/zap@v1.27.0/logger.go:285 +0x4c
github.com/microsoft/retina/pkg/managers/controllermanager.(*Controller).Start(0x400096bcc0, {0x42da150?, 0x40009049b0?})
/go/src/github.com/microsoft/retina/pkg/managers/controllermanager/controllermanager.go:112 +0x240
created by github.com/microsoft/retina/cmd/standard.(*Daemon).Start in goroutine 1
/go/src/github.com/microsoft/retina/cmd/standard/daemon.go:313 +0x2634`

Platform (please complete the following information):

• OS: Amazon Linux 2023
• Kubernetes Version: 1.34
• Host: AWS EC2
• Retina Version: v1.0.0-rc4
• Kernel Version: 6.1.147-172.266.amzn2023.aarch64

Additional context
It works fine with retina version v0.0.21

[SRodi]

Hi @WangSiyao this issue could be due to ftrace not enabled on the host kernel, which is a requirement for fexit type programs. If that is the case, we pushed a fixed (fallback to kprobes/kretprobes) in v1.0.0-rc5. Can you please test with v1.0.0-rc5 and let us know if this is still valid?