crash Parity/v1.4.0-beta-170bd03-20161107/x86_64-linux-gnu/rustc1.12.1parity on json call

[jo-tud]

When I call getBlockByNumber with a block as parameter and transactions included on a parity node, it crashes. The node was not yet fully synced, but it had already synced the requested block.
This was the command to start parity:
parity --tracing on --mode active --pruning archive
For me this is reproducible.

2016-11-08 13:27:39 UTC Syncing #2370963 797b…9ec1 6 blk/s 65 tx/s 6 Mgas/s 0+ 5958 Qed #2376924 0/ 8/25 peers 179 KiB db 875 KiB chain 52 MiB queue 2 MiB sync thread '<unnamed>' panicked at 'DecodeError: RlpExpectedToBeList, a0d4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3', util/rlp/src/rlpin.rs:120 stack backtrace: 1: 0x560bad64df19 - <unknown> 2: 0x560bad65698c - <unknown> 3: 0x560bad655859 - <unknown> 4: 0x560bad655f48 - <unknown> 5: 0x560bad655da2 - <unknown> 6: 0x560bad655d10 - <unknown> 7: 0x560bad04e159 - <unknown> 8: 0x560bad1a8388 - <unknown> 9: 0x560bacc9da2e - <unknown> 10: 0x560bacb7978b - <unknown> 11: 0x560bacb1983c - <unknown> 12: 0x560bacf6a159 - <unknown> 13: 0x560bacf6b45f - <unknown> 14: 0x560bacf6a829 - <unknown> 15: 0x560bacf6d88c - <unknown> 16: 0x560bacf48d3e - <unknown> 17: 0x560bacf40f35 - <unknown> 18: 0x560bacf410a0 - <unknown> 19: 0x560bacf40df5 - <unknown> 20: 0x560bacf3ee6c - <unknown> 21: 0x560bacf3d0c6 - <unknown> 22: 0x560bacf3063d - <unknown> 23: 0x560bacf385cf - <unknown> 24: 0x560bacf2fed7 - <unknown> 25: 0x560bad65e476 - <unknown> 26: 0x560bacf3a761 - <unknown> 27: 0x560bad6544f2 - <unknown> 28: 0x7fca246cd709 - start_thread 29: 0x7fca2517382c - clone 30: 0x0 - <unknown> 2016-11-08 13:27:43 UTC Finishing work, please wait... thread 'main' panicked at 'called Result::unwrap()on anErr` value: Closed', ../src/libcore/result.rs:788
stack backtrace:
1: 0x560bad64df19 -
2: 0x560bad65698c -
3: 0x560bad655859 -
4: 0x560bad655f48 -
5: 0x560bad655da2 -
6: 0x560bad655d10 -
7: 0x560bad655c91 -
8: 0x560bad69338f -
9: 0x560bad325155 -
10: 0x560bad33b0fd -
11: 0x560bacf51f49 -
12: 0x560bacd022ab -
13: 0x560bacd0dac5 -
14: 0x560bacd1852d -
15: 0x560bad65e476 -
16: 0x560bad654fd2 -
17: 0x7fca2508d82f - __libc_start_main
18: 0x560bacadf4ad -
19: 0x0 -

`

[arkpar]

What was the block number you were requesting?

[mtbitcoin]

I can confirm this issue with beta (tracing on), with or without --pruning archive

Executing the following causes the crash

curl http://localhost:8546 -X POST --data "{"jsonrpc":"2.0","method":"eth_getUncleByBlockNumberAndIndex","params":["0x26e0f9", "0x0"],"id":1}" -H "Content-Type: application/json"

---- console log --==
2016-11-08 23:24:32 UTC Starting Parity/v1.4.0-beta-170bd03-20161107/x86_64-windows-msvc/rustc1.12.0
2016-11-08 23:24:32 UTC State DB configuation: fast +Trace
2016-11-08 23:24:32 UTC Operating mode: active
2016-11-08 23:24:32 UTC Configured for Frontier/Homestead using Ethash engine
2016-11-08 23:24:39 UTC Public node URL: enode://920a46addf49e477344e6745d3f0a31
897e3a35f7034d793bcc4413d011db6e287a2d6dc3795d18573bc01f92f5d09f433fc40b38e07db3
1f57d3410e9338b2e@127.0.0.1:30305
thread '2016-11-08 23:24:41 UTC Imported #2591958 59b8.c7e2 (9 txs, 0.19 Mgas, 5
.63 ms, 1.53 KiB) + another 1 block(s) containing 2 tx(s)
' panicked at 'DecodeError: RlpExpectedToBeList, a07c928482751358f67a1dbbc79902f
5daf206697e1fa6512a5e20dfabe5e8949b2016-11-08 23:25:03 UTC 0/11/25 peers
2 MiB db 4 MiB chain 0 bytes queue 22 KiB sync',
util\rlp\src\rlpin.rs:120
2016-11-08 23:28:19 UTC 0/16/25 peers 2 MiB db 7 MiB chain 0 bytes
queue 22 KiB sync
2016-11-08 23:28:19 UTC Syncing #2591963 d0cb.7615 0 blk/s 0 tx/s 0 Mg
as/s 4+ 0 Qed #2591871 1/23/25 peers 2 MiB db 7 MiB chain
10 KiB queue 22 KiB sync
2016-11-08 23:28:19 UTC Syncing #2591963 d0cb.7615 0 blk/s 0 tx/s 0 Mg
as/s 5+ 0 Qed #2591827 1/23/25 peers 2 MiB db 7 MiB chain
11 KiB queue 22 KiB sync
stack backtrace:

[tomusdrw]

Have you synced on new version from scratch or did you use some older DB?

[arkpar]

Reproduced in master

[mtbitcoin]

@arkpar @gavofyork Issue still persists in Master. Is a resync required ?

2016-11-10 01:45:07 Starting Parity/v1.5.0-unstable-29add4e-20161109/x86_64-windows-msvc/rustc1.12.0
2016-11-10 01:45:07 State DB configuation: fast +Trace
2016-11-10 01:45:07 Operating mode: active
2016-11-10 01:45:07 Configured for Frontier/Homestead using Ethash engine
2016-11-10 01:45:08 Public node URL: enode://7c81c7305c075e81399897e500099565e733cfb67e7c2034c7b52fc73b769bd832f6c29d31c07541c57d083b8d1f01228a01257fa794c87bea36a7c2bf99a771@127.0.0.1:30305
2016-11-10 01:45:17 Imported #2596515 da4d…86fd (10 txs, 0.21 Mgas, 4.92 ms, 1.64 KiB)
thread '' panicked at 'DecodeError: RlpExpectedToBeList, a02b29bd3fd44b44f5499b3bbdfa918a3d3c48836a5fbcd1c024a979a89bac25e6', Users\Matthew.cargo\git\checkouts\parity-6ba620efeffb2216\master\util\rlp\src\rlpin.rs:120
stack backtrace:

[arkpar]

@mtbitcoin commit 29add4e from your version string is a bit old and does not have the fix. Please try building the latest.

[mtbitcoin]

@arkpar that worked, thanks!