Why this simple code crash at the end:
#include <TProof.h>
int main()
{
TProof *p = TProof::Open("localhost");
return 0;
}
*** Break *** segmentation violation
===========================================================
There was a crash.
This is the entire stack trace of all threads:
===========================================================
Thread 3 (Thread 0x427ad940 (LWP 15789)):
#0 0x000000326e69a3f1 in nanosleep () from /lib64/libc.so.6
#1 0x000000326e69a214 in sleep () from /lib64/libc.so.6
#2 0x00002ad603510893 in GarbageCollectorThread (arg=0x1b1e0dd0,
thr=<value optimized out>) at XrdClientConnMgr.cc:73
#3 0x00002ad6032b4f41 in XrdSysThread_Xeq ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#4 0x000000326ee0673d in start_thread () from /lib64/libpthread.so.0
#5 0x000000326e6d3f6d in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x41a61940 (LWP 15790)):
#0 0x000000326e6cb186 in poll () from /lib64/libc.so.6
#1 0x00002ad6034f6a26 in XrdClientSock::RecvRaw (this=0x1b1e6280,
buffer=0x1b27bfa0, length=8, substreamid=-1, usedsubstreamid=0x1)
at XrdClientSock.cc:128
#2 0x00002ad60351924a in XrdClientPhyConnection::ReadRaw (this=0x1b1e4aa0,
buf=0x1b27bfa0, len=8, substreamid=-1, usedsubstreamid=0x41a6092c)
at XrdClientPhyConnection.cc:362
#3 0x00002ad603515363 in XrdClientMessage::ReadRaw (this=0x1b27bf60,
phy=0x1b1e4aa0) at XrdClientMessage.cc:152
#4 0x00002ad60351855f in XrdClientPhyConnection::BuildMessage (
this=0x1b1e4aa0, IgnoreTimeouts=true, Enqueue=true)
at XrdClientPhyConnection.cc:443
#5 0x00002ad60351d376 in SocketReaderThread (arg=0x1b1e4aa0,
thr=<value optimized out>) at XrdClientPhyConnection.cc:61
#6 0x00002ad6032b4f41 in XrdSysThread_Xeq ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#7 0x000000326ee0673d in start_thread () from /lib64/libpthread.so.0
#8 0x000000326e6d3f6d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x2ad602ae4a10 (LWP 15788)):
#0 0x000000326e699fff in waitpid () from /lib64/libc.so.6
#1 0x000000326e63c331 in do_system () from /lib64/libc.so.6
#2 0x000000326e63c687 in system () from /lib64/libc.so.6
#3 0x00002ad5fe6aaf70 in TUnixSystem::StackTrace ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#4 0x00002ad5fe6a766b in TUnixSystem::DispatchSignals ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#5 <signal handler called>
#6 0x00000032708e97f0 in vtable for __cxxabiv1::__class_type_info ()
from /usr/lib64/libstdc++.so.6
#7 0x00002ad60328d2b7 in TXSockPipe::Flush ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#8 0x00002ad60328d465 in TXSocket::Close ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#9 0x00002ad6032866af in TXSlave::Close ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#10 0x00002ad602570472 in TProof::Close ()
from /gpfs/storage_4/users/home/proof/root/lib/libProof.so
#11 0x00002ad60259434a in TProof::~TProof ()
from /gpfs/storage_4/users/home/proof/root/lib/libProof.so
#12 0x00002ad5fe64dd3d in TCollection::GarbageCollect ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#13 0x00002ad5fe6524e5 in TList::Delete ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#14 0x00002ad5fe605904 in TROOT::~TROOT ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#15 0x000000326e63368e in __cxa_finalize () from /lib64/libc.so.6
#16 0x00002ad5fe5ba3b6 in __do_global_dtors_aux ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#17 0x0000000000000000 in ?? ()
===========================================================
The lines below might hint at the cause of the crash.
If they do not help you then please submit a bug report at
http://root.cern.ch/bugs. Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
===========================================================
#6 0x00000032708e97f0 in vtable for __cxxabiv1::__class_type_info ()
from /usr/lib64/libstdc++.so.6
#7 0x00002ad60328d2b7 in TXSockPipe::Flush ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#8 0x00002ad60328d465 in TXSocket::Close ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#9 0x00002ad6032866af in TXSlave::Close ()
from /gpfs/storage_4/users/home/proof/root/lib/libProofx.so
#10 0x00002ad602570472 in TProof::Close ()
from /gpfs/storage_4/users/home/proof/root/lib/libProof.so
#11 0x00002ad60259434a in TProof::~TProof ()
from /gpfs/storage_4/users/home/proof/root/lib/libProof.so
#12 0x00002ad5fe64dd3d in TCollection::GarbageCollect ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#13 0x00002ad5fe6524e5 in TList::Delete ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#14 0x00002ad5fe605904 in TROOT::~TROOT ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#15 0x000000326e63368e in __cxa_finalize () from /lib64/libc.so.6
#16 0x00002ad5fe5ba3b6 in __do_global_dtors_aux ()
from /gpfs/storage_4/users/home/proof/root/lib/libCore.so
#17 0x0000000000000000 in ?? ()
===========================================================
If I add a p->Process(…) it works, it processes and write the output, but I get the same crash just at the end.