Connect event: ERROR 0x80050000

[nemethz]

Hi,

My app stopped with segmentation fault in libuastack.so.

The trace file:

07:42:27.879|D|E4307700* OpcUa_SecureStream_Read: end of buffer reached: 1 requested, 0 available in buffer; need to skip)!
07:42:27.879|I|E4307700* OpcUa_Channel_ResponseAvailable: ReadResponse
07:42:27.879|D|E4307700* OpcUa_Channel_ResponseAvailable: Calling Application Callback!
07:42:27.879|D|E4307700* UaClient_Session_WatchdogReadComplete: WatchdogRead succeeded
07:42:27.879|D|E4307700* OpcUa_Channel_ResponseAvailable: Calling Application Callback Done!
07:42:27.879|D|E4307700* OpcUa_AsyncCallState_Delete: 0x53c5a10
07:42:27.879|D|E4307700* * OpcUa_TcpConnection_SocketCallback: Event Handler returned.
07:42:27.879|D|E4307700* --> UaClient_Session_Action_StartWatchdogTimer
07:42:27.879|D|E4307700* <-- UaClient_Session_Action_StartWatchdogTimer
07:42:27.974|I|E4307700* OpcUa_Socket_HandleEvent: Exception at connect attempt 0.
07:42:27.974|I|E4307700* OpcUa_Socket_HandleEvent: Connect to all IP's failed. Giving up.
07:42:27.974|D|E4307700* * OpcUa_TcpConnection_SocketCallback: Socket(e60d0188), Port(33985), Data(87392480), Event(OPCUA_SOCKET_EXCEPT_EVENT)
07:42:27.975|D|E4307700* OpcUa_P_Socket_Shutdown: Shutting down socket 0xE60D0188!
07:42:27.975|D|E4307700* OpcUa_P_Socket_Shutdown: Could not shut down socket (0x80AF0000)! Closing.
07:42:27.975|D|E4307700* OpcUa_P_Socket_Delete: Closing socket 0xE60D0188!
07:42:27.975|D|E4307700* OpcUa_SecureConnection_OnNotify: SecureConnection 0x53a8c00 received event 1 with status 0x80050000!
07:42:27.975|E|E4307700* OpcUa_SecureConnection_OnNotify: Connect event: ERROR 0x80050000!
...and nore trace entries.

The trace file when error handled successfully:

08:58:02.663|E|34642700* OpcUa_SecureConnection_OnNotify: Connect event: ERROR 0x80050000!
08:58:02.663|D|34642700* OpcUa_TcpConnection_Disconnect: State 4, Socket (nil)
08:58:02.663|E|34642700* OpcUa_SecureConnection_OnNotify: Connect event: Notifying owner! 0x80050000
08:58:02.663|D|34642700* OpcUa_Channel_OnNotify: Underlying connection raised connect event with status 0x80050000!
08:58:02.663|D|34642700* OpcUa_Channel_OnNotify: Notifying application!

The Linux log:

[Fri Dec 15 05:59:56 2017] ocaqudanv.exe[15924]: segfault at 20 ip 00007fdde5e751be sp 00007fdde4306a50 error 4 in libuastack.so[7fdde5d99000+12a000]

Can we know what this can be?

Regards
Zoltan Nemeth

[stanleylee]

In the source code, the error number 0x80050000 is following

/*============================================================================
* A low level communication error occurred.
*===========================================================================*/
#define OpcUa_BadCommunicationError 0x80050000

[nemethz]

I know, but the application randomly crashed in libuastack.so when this bad communication error occured.
Has anyone experienced such a thing?

[Support Team]

Hello nemethz,

please use https://webdav.unifiedautomation.com/su ... _form.html to issue a support request containing your customer id. We will need more detailed information about the scenario which leads to the problem and the application using the AnsiC client SDK.