Print

---

I got a segmentation fault on a auto_ptr to a message object.  I added 
the offending function (fails on return) below after the backtrace. This 
could well have something to with the expecting message size x, got 0 
bytes problem. The core dump is too big to attach. If you want to see 
it, let me know where I can copy it.

On a side note, why is Message::pSessionId always 1 or 0?

-John


#0  0x00007f29009c4ca6 in std::auto_ptr<XrdCl::Message>::~auto_ptr 
(this=0x7f28e2ffc9b0, __in_chrg=<optimized out>) at 
/usr/include/c++/4.8.2/backward/auto_ptr.h:170
No locals.
#1  0x00007f29009bd72e in XrdCl::XRootDMsgHandler::Process 
(this=0x7f28cc0046c0, msg=0x7f28dc000d30) at 
/afs/in2p3.fr/home/j/jgates/working/xrootd/src/XrdCl/XrdClXRootDMsgHandler.cc:297
         embededMsg = 0x7f28d4024eb0
         msgPtr = {_M_ptr = 0x7f28dc000d30}
         embRsp = 0x7f28d40165d0
         rsp = 0x7f28dc001950
         qryResult = {pHolder = 0x7f28e2ffcb58, pTypeInfo = 
0x7f28e2ffcd00, pOwn = true}
         qryResponse = 0x7f28e2ffcb00
         log = 0x25d1c60
         req = 0x7f28cc03af00
         st = {status = 58336, code = 2483, errNo = 32553}
#2  0x00007f29009acce5 in XrdCl::InQueue::AddMessage 
(this=0x7f28d8010380, msg=0x7f28dc000d30) at 
/afs/in2p3.fr/home/j/jgates/working/xrootd/src/XrdCl/XrdClInQueue.cc:65
         log = 0x25d1c60
         it = {first = , second = 1435863656}
         action = 5
         handler = 0x7f28cc0046c0
#3  0x00007f2900999afd in XrdCl::Stream::QueueIncMsgJob::Run 
(this=0x7f28d800a520, arg=0x7f28dc000d30) at 
/afs/in2p3.fr/home/j/jgates/working/xrootd/src/./XrdCl/XrdClStream.hh:267
         msg = 0x7f28dc000d30
#4  0x00007f29009f986a in XrdCl::JobManager::RunJobs 
(this=0x7f28e400e470) at 
/afs/in2p3.fr/home/j/jgates/working/xrootd/src/XrdCl/XrdClJobManager.cc:148
         h = {job = 0x7f28d800a520, arg = 0x7f28dc000d30}
#5  0x00007f29009f93e4 in RunRunnerThread (arg=0x7f28e400e470) at 
/afs/in2p3.fr/home/j/jgates/working/xrootd/src/XrdCl/XrdClJobManager.cc:33
         mgr = 0x7f28e400e470
#6  0x00007f2912c46df3 in start_thread () from /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#7  0x00007f291226b1ed in clone () from /lib64/libc.so.6
No symbol table info available.




   void XRootDMsgHandler::Process( Message *msg )
   {
     Log *log = DefaultEnv::GetLog();

     ServerResponse *rsp = (ServerResponse *)msg->GetBuffer();
     ClientRequest  *req = (ClientRequest *)pRequest->GetBuffer();

//--------------------------------------------------------------------------
     // We got an async message
//--------------------------------------------------------------------------
     if( rsp->hdr.status == kXR_attn )
     {
       log->Dump( XRootDMsg, "[%s] Got an async response to message %s %s, "
                  "processing it", pUrl.GetHostId().c_str(),
                  msg->dump().c_str(), pRequest->GetDescription().c_str() );
       Message *embededMsg = new Message( rsp->hdr.dlen-8 );
       embededMsg->Append( msg->GetBuffer( 16 ), rsp->hdr.dlen-8 );
       XRDCL_SMART_PTR_T<Message> msgPtr( msg );
       pResponse = embededMsg; // this can never happen for oksofars

       // we need to unmarshall the header by hand
       XRootDTransport::UnMarshallHeader( embededMsg );

//------------------------------------------------------------------------
       // Check if the dlen field of the embedded message is consistent with
       // the dlen value of the original message
//------------------------------------------------------------------------
       ServerResponse *embRsp = (ServerResponse *)embededMsg->GetBuffer();
       if( embRsp->hdr.dlen != rsp->hdr.dlen-16 )
       {
         log->Error( XRootDMsg, "[%s] Sizes of the async response to %s 
and the "
                     "embedded message are inconsistent. Expected %d, 
got %d.",
                     pUrl.GetHostId().c_str(), 
pRequest->GetDescription().c_str(),
                     rsp->hdr.dlen-16, embRsp->hdr.dlen);

         pStatus = Status( stFatal, errInvalidMessage );
         HandleResponse();
         return;
       }

       log->Dump( XRootDMsg, "[%s] async response to message %s -> Process",
                  pUrl.GetHostId().c_str(), embededMsg->dump().c_str());
       Process( embededMsg );
       return;
     }

########################################################################
Use REPLY-ALL to reply to list

To unsubscribe from the QSERV-L list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1