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;
}
########################################################################
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