zstd decode mismatch?

[klauspost]

Investigate potential decoder mismatch.

CRC mismatch seen.

[klauspost]

Seems to be an issue with extremely sparse blocks:

2019/06/15 13:11:22 decoding new block
2019/06/15 13:11:22 Data size on stream: 11
2019/06/15 13:11:22 Decompressed to 65536 bytes, error: <nil>
2019/06/15 13:11:22 blockDec: Finished block
2019/06/15 13:11:22 got result
2019/06/15 13:11:22 next block: Steam Size: 11, Type: blockTypeCompressed, Last: false, Window: 4194304
2019/06/15 13:11:22 literals type: literalsBlockRaw litRegenSize: 0 litCompSize 0
2019/06/15 13:11:22 Compression modes: 0b1010100
2019/06/15 13:11:22 RLE set to {newState:0 addBits:0 nbBits:0 baseline:0}, code: 0
2019/06/15 13:11:22 RLE set to {newState:0 addBits:19 nbBits:0 baseline:524285}, code: 19
2019/06/15 13:11:22 RLE set to {newState:0 addBits:15 nbBits:0 baseline:32771}, code: 51
2019/06/15 13:11:22 Sending  4915200  bytes as history
2019/06/15 13:11:22 got 65536 bytes, error: <nil>
2019/06/15 13:11:22 Final literals: 0 and 4 sequences.
2019/06/15 13:11:22 History merged ok
2019/06/15 13:11:22 returning 1024 <nil> 0