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Type:
Bug
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Resolution: Duplicate
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Priority:
Major - P3
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None
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Affects Version/s: 1.13.0
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Component/s: None
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None
Detailed steps to reproduce the problem?
Looks like a race condition introduced in this commit:
v1.12.1 works fine.
Same cause as this bug report has, but happens in decoder:
https://jira.mongodb.org/projects/GODRIVER/issues/GODRIVER-3009
Code that can be used to reproduce:
package main import ( "log" "sync" "go.mongodb.org/mongo-driver/bson" ) func main() { data := []byte{16, 0, 0, 0, 10, 108, 97, 115, 116, 101, 114, 114, 111, 114, 0, 0} wg := sync.WaitGroup{} wg.Add(10_000) for i := 0; i < 10_000; i++ { go func() { defer wg.Done() var res struct{ LastError error } if err := bson.Unmarshal(data, &res); err != nil { log.Printf("Failed to unmarshal: %v", err) } }() } wg.Wait() }
The stacktrace is:
panic: interface conversion: interface is nil, not bsoncodec.ValueEncodergoroutine 15 [running]: go.mongodb.org/mongo-driver/bson/bsoncodec.(*typeEncoderCache).LoadOrStore(...) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/bsoncodec/codec_cache.go:45 go.mongodb.org/mongo-driver/bson/bsoncodec.(*Registry).storeTypeEncoder(0xc000130c40?, {0x116c3e0?, 0x111b580?}, {0x0, 0x0}) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/bsoncodec/registry.go:416 +0x77 go.mongodb.org/mongo-driver/bson/bsoncodec.(*Registry).LookupEncoder(0xc000130c40, {0x116c3e0, 0x111b580}) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/bsoncodec/registry.go:411 +0x1fa go.mongodb.org/mongo-driver/bson/bsoncodec.(*StructCodec).describeStructSlow(0xc00010a1c0, 0xc000130c40?, {0x116c3e0, 0x111d600}, 0x0, 0x0) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/bsoncodec/struct_codec.go:515 +0x225 go.mongodb.org/mongo-driver/bson/bsoncodec.(*StructCodec).describeStruct(0xc00010a1c0, 0x0?, {0x116c3e0?, 0x111d600}, 0x0?, 0x0?) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/bsoncodec/struct_codec.go:483 +0x9a go.mongodb.org/mongo-driver/bson/bsoncodec.(*StructCodec).DecodeValue(0xc00010a1c0, {0xc000130c40, 0x0, {0x0, 0x0}, {0x0, 0x0}, 0x0, 0x0, 0x0, ...}, ...) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/bsoncodec/struct_codec.go:282 +0x111 go.mongodb.org/mongo-driver/bson.(*Decoder).Decode(0xc000686000, {0x1111c80, 0xc000680000}) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/decoder.go:134 +0x3e3 go.mongodb.org/mongo-driver/bson.unmarshalFromReader({0xc000130c40, 0x0, {0x0, 0x0}, {0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, ...}, ...) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/unmarshal.go:176 +0x188 go.mongodb.org/mongo-driver/bson.UnmarshalWithRegistry(0xc000130c40, {0xc000012700, 0x10, 0x10}, {0x1111c80, 0xc000680000}) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/unmarshal.go:63 +0x125 go.mongodb.org/mongo-driver/bson.Unmarshal(...) /Users/romantarasov/data/develop/pkg/mod/go.mongodb.org/mongo-driver@v1.13.0/bson/unmarshal.go:45 main.main.func1() /Users/romantarasov/data/develop/src/github.com/autopilot3/ap3-crm-api-go/cmd/main.go:18 +0xa9 created by main.main in goroutine 1 /Users/romantarasov/data/develop/src/github.com/autopilot3/ap3-crm-api-go/cmd/main.go:15 +0x66
Definition of done: what must be done to consider the task complete?
The exact Go version used, with patch level:
go version go1.21.0 darwin/amd64
The exact version of the Go driver used:
go.mongodb.org/mongo-driver v1.13.0
The operating system and version:
macOS Ventura 13.5.1
- backported by
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- Closed
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- duplicates
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- Closed
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- is duplicated by
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- Closed
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GODRIVER-3056 v1.13.0 introduces panics and thus breaking change
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- Closed
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- related to
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- Closed
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