[4.3.4] WoW error when entering vehicles

[VincentVanclef]

If you enter for example: Salvaged Chopper (id: 33062) and someone else enters the seat, he sits in it but gets instant wow error. Happends with alot of vehicles.

Can anyone confirm?

Ubuntu
revision: 46201ac

[patilus]

Hello, i confirm that.

If a player A see a other player B ride or move with a vehicle, the client of player A crash.

This problem could be to the update system because if the player A riding his vehicle outside the field of view of player B, there is no crash.
And if the player B going to see the player A on his vehicle, he see only the vehicle, no person on board.

Log from the console on ride (crash player B):

Command: .add 46856 [Player: playerA (Account: 1) X: 16223.122070 Y: 16264.378906 Z: 13.236402 Map: 1 Selected none:  (GUID: 0)]
WORLD: CMSG_USE_ITEM packet, bagIndex: 255, slot: 24, castCount: 1, spellId: 66393, Item: 46856, glyphIndex: 0, data length = 24
Prevented sending disabled opcode [SMSG_ON_CANCEL_EXPECTED_RIDE_VEHICLE_AURA 0x4D34 (19764)] to [Player: playerA (Guid: 1, Account: 1)]
No defined handler for opcode [CMSG_FORCE_MOVE_ROOT_ACK 0x701E (28702)] sent by [Player: playerB (Guid: 2, Account: 253)]
No defined handler for opcode [CMSG_FORCE_MOVE_ROOT_ACK 0x701E (28702)] sent by [Player: playerA (Guid: 1, Account: 1)]
WORLD: Recvd CMSG_MOVE_NOT_ACTIVE_MOVER
WORLD: Recvd CMSG_SET_ACTIVE_MOVER
WORLD: CMSG_FAR_SIGHT
Added FarSight 17388547797954294519 to player 1

Log from console on unride (no crash):

WORLD: Recvd CMSG_DISMISS_CONTROLLED_VEHICLE
No defined handler for opcode [CMSG_FORCE_MOVE_UNROOT_ACK 0x7808 (30728)] sent by [Player: playerB (Guid: 2, Account: 253)]
No defined handler for opcode [CMSG_FORCE_MOVE_UNROOT_ACK 0x7808 (30728)] sent by [Player: playerA (Guid: 1, Account: 1)]
WORLD: Recvd CMSG_SET_ACTIVE_MOVER
WORLD: Received CMSG_MOVE_SPLINE_DONE
WORLD: Received CMSG_MOVE_SPLINE_DONE
WORLD: CMSG_FAR_SIGHT
Player 1 set vision to self

I have try to disable opcodes CMSG_MOVE_NOT_ACTIVE_MOVER && CMSG_SET_ACTIVE_MOVER && CMSG_FAR_SIGHT but client B crash again

That is a screen of crash client :

As you can see, it's happen when the player A is riding the vehicle

OS serv : Debian 6.0
Rev : 988a07e
OS cli : Win 7 64bits

[Walkum]

Confirm this.