Production Desktop Crash on launch

[ericvicenti]

On both of my macs, this happens

panic: runtime error: range function continued iteration after function for loop body returned false [recovered, repanicked]

goroutine 11168 [running]:
go.opentelemetry.io/otel/sdk/trace.(*recordingSpan).End.deferwrap1()
        /Users/runner/go/pkg/mod/go.opentelemetry.io/otel/sdk@v1.42.0/trace/span.go:478 +0x20
go.opentelemetry.io/otel/sdk/trace.(*recordingSpan).End(0x4e9507af9860, {0x0, 0x0, 0x4e950443e5a0?})
        /Users/runner/go/pkg/mod/go.opentelemetry.io/otel/sdk@v1.42.0/trace/span.go:522 +0xa28
panic({0x10a53d820?, 0x10a9d77c0?})
        /Users/runner/hostedtoolcache/go/1.26.2/arm64/src/runtime/panic.go:860 +0x12c
seed/backend/api/documents/v3alpha/docmodel.(*Document).Hydrate.(*Document).Hydrate.func3-range1({{0x0?, 0x4e950627eeb6?}, {0x4e950627eec0?, 0x4e9506266f48?}})
        /Users/runner/work/seed/seed/backend/api/documents/v3alpha/docmodel/docmodel.go:632 +0x1e4
seed/backend/api/documents/v3alpha/docmodel.(*blockTreeState).walk-range1({0x0?, 0x0?}, {{0x19eee7d7f03, 0x1, 0xebec29e0bc9b80}, {0x19eee7d7f03, 0x0, 0xebec29e0bc9b80}, {0x4e950627eec0, 0x8}, ...})
        /Users/runner/work/seed/seed/backend/api/documents/v3alpha/docmodel/crdt_block_tree.go:193 +0xd0
seed/backend/api/documents/v3alpha/docmodel.(*blockTreeState).walk.(*blockTreeState).walk.(*Map[...]).Items.func1.func2()
        /Users/runner/work/seed/seed/backend/util/btree/btree.go:128 +0x58
github.com/tidwall/btree.(*BTreeG[...]).nodeAscend(0x10a8e68c0, 0x4e9506266b08, {{0x0?, 0x0}, {{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0}, ...}}, ...)
        /Users/runner/go/pkg/mod/github.com/tidwall/btree@v1.7.0/btreeg.go:650 +0x200
github.com/tidwall/btree.(*BTreeG[...]).ascend(0x10a8e68c0, {{0x0, 0x0}, {{0x0, 0x0, 0x0}, {0x0, 0x0, 0x0}, {0x0, ...}, ...}}, ...)
        /Users/runner/go/pkg/mod/github.com/tidwall/btree@v1.7.0/btreeg.go:618 +0x11c
github.com/tidwall/btree.(*BTreeG[...]).AscendHint(...)
        /Users/runner/go/pkg/mod/github.com/tidwall/btree@v1.7.0/btreeg.go:622
seed/backend/api/documents/v3alpha/docmodel.(*blockTreeState).walk.(*Map[...]).Items.func1(...)
        /Users/runner/work/seed/seed/backend/util/btree/btree.go:127
seed/backend/api/documents/v3alpha/docmodel.(*blockTreeState).walk(0x4e9505cebd58, {0x0, 0x0}, 0x4e9506266f48)
        /Users/runner/work/seed/seed/backend/api/documents/v3alpha/docmodel/crdt_block_tree.go:188 +0x124
seed/backend/api/documents/v3alpha/docmodel.(*Document).Hydrate.(*Document).Hydrate.func3.(*blockTreeState).DFT.func4(...)
        /Users/runner/work/seed/seed/backend/api/documents/v3alpha/docmodel/crdt_block_tree.go:178
seed/backend/api/documents/v3alpha/docmodel.(*Document).Hydrate.func3(...)
        /Users/runner/work/seed/seed/backend/api/documents/v3alpha/docmodel/docmodel.go:632
seed/backend/api/documents/v3alpha/docmodel.(*Document).Hydrate(0x4e950518d9d0, {0x10a8a4358?, 0x4e9506a309c0?})
        /Users/runner/work/seed/seed/backend/api/documents/v3alpha/docmodel/docmodel.go:653 +0x540
seed/backend/api/documents/v3alpha.(*Server).GetResource(0x4e9504f0f3b0, {0x10a8a4358, 0x4e9506a309c0}, 0x4e9506a9f700)
        /Users/runner/work/seed/seed/backend/api/documents/v3alpha/resources.go:283 +0x984
seed/backend/genproto/documents/v3alpha._Resources_GetResource_Handler.func1({0x10a8a4358?, 0x4e9506a309c0?}, {0x10a6b4320?, 0x4e9506a9f700?})
        /Users/runner/work/seed/seed/backend/genproto/documents/v3alpha/resources_grpc.pb.go:138 +0xcc
main.main.func1.(*ServerMetrics).UnaryServerInterceptor.UnaryServerInterceptor.10({0x10a8a4358, 0x4e9506a309c0}, {0x10a6b4320, 0x4e9506a9f700}, 0x0?, 0x4e9505cead80)
        /Users/runner/go/pkg/mod/github.com/grpc-ecosystem/go-grpc-middleware/v2@v2.1.0/interceptors/server.go:22 +0x18c
google.golang.org/grpc.getChainUnaryHandler.func1({0x10a8a4358?, 0x4e9506a309c0?}, {0x10a6b4320?, 0x4e9506a9f700?})
        /Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1239 +0x10c
main.main.func1.UnaryServerInterceptor.2({0x10a8a4358, 0x4e9506a30870}, {0x10a6b4320, 0x4e9506a9f700}, 0x4e950768b180, 0x4e9506a9f740)
        /Users/runner/go/pkg/mod/go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc@v0.25.0/interceptor.go:325 +0x3b0
google.golang.org/grpc.NewServer.chainUnaryServerInterceptors.chainUnaryInterceptors.func1({0x10a8a4358, 0x4e9506a30870}, {0x10a6b4320, 0x4e9506a9f700}, 0x4e950768b180, 0x10a7d6400?)
        /Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1230 +0x74
seed/backend/genproto/documents/v3alpha._Resources_GetResource_Handler({0x10a865440, 0x4e9504f0f3b0}, {0x10a8a4358, 0x4e9506a30870}, 0x4e9504f94680, 0x4e9504768fc0)
        /Users/runner/work/seed/seed/backend/genproto/documents/v3alpha/resources_grpc.pb.go:140 +0x140
google.golang.org/grpc.(*Server).processUnaryRPC(0x4e95044ffd48, {0x10a8a4358, 0x4e9506a306f0}, 0x4e9507910820, 0x4e9503e015f0, 0x10a9eaba0, 0x0)
        /Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1426 +0xc90
google.golang.org/grpc.(*Server).handleStream(0x4e95044ffd48, {0x10a8a5088, 0x4e9506acc000}, 0x4e9507910820)
        /Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1830 +0x9e0
google.golang.org/grpc.(*Server).serveStreams.func2.1()
        /Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1061 +0x70
created by google.golang.org/grpc.(*Server).serveStreams.func2 in goroutine 8476
        /Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1072 +0x120
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/desktop","msg":"Go daemon closed","code":2,"signal":null}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.1.1781453731670","msg":"Daemon error Service Error: !!!\t/Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1072 +0x120"}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.1.1781183386021","msg":"Daemon error Service Error: !!!\t/Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1072 +0x120"}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.2.1781518082699","msg":"Daemon error Service Error: !!!\t/Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1072 +0x120"}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.1.1781453731670","msg":"🚨 to ListDocuments [object Object] TypeError: Failed to fetch (localhost:56001)"}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.1.1781573779827","msg":"🚨 to ListDocuments [object Object] TypeError: Failed to fetch (localhost:56001)"}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.2.1781518082699","msg":"🚨 to ListDocuments [object Object] TypeError: Failed to fetch (localhost:56001)"}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.1.1781183386021","msg":"🚨 to ListDocuments [object Object] TypeError: Failed to fetch (localhost:56001)"}
{"lvl":"error","ts":"2026-06-24T15:09:24Z","log":"seed/window.1.1781573779827","msg":"Daemon error Service Error: !!!\t/Users/runner/go/pkg/mod/google.golang.org/grpc@v1.79.2/server.go:1072 +0x120"}

[ericvicenti]

This is happening on 2026.6.8 and @horacioh reports that a manual upgrade to 6.9 fixes it

Confirmed that the issue doesn't happen on 6.9.. so I guess there is nothing we can do about the issue except learn what happened?

@burdiyan what do you think?

[burdiyan]

Looks like there's nothing we can do. We know what happened — it was a document that had children blocks without the parent materialized in the document. We still don't know how this document got created at all, so I'll leave this open to remind me to investigate this.

[horacioh]

does the frontend have to have some guards against this? should we do something?

[ericvicenti]

I don't know what we could do on the front end. We could maybe detect that the daemon is always crashing, and force the user to upgrade to the latest version of the app. (Assuming one is available).

Also maybe we could show the error to the user better. And we could show only one window, because it feels strange that every window is showing the error.

[burdiyan]

I was saying "nothing we can do" basically because it's an old version of the app, and we can't fix it backward. For the future, of course we could improve the UX in case of any daemon issues. In addition to Eric's ideas we could make sure auto-updater always works, so if the daemon is crashing but there's a new update, users should be able to auto-update.