Problem with histogram cloning

From: Melinda Siciliano <mellybinda_at_gmail.com>
Date: Thu, 8 Mar 2012 11:58:15 +0100

Dear all,

I have a problem with the histogram cloning. I used this code with different root version before, and I have never had problem. I updated my root version to v5-30-06 and then v5-32-01 on SLC5. In both cases, I have a loop in a set of histograms is filled ,and after the end of the loop in a new loop the histograms are retrived and manipulated. In the first iteration this second loop the code works fine. At the second iteration the code broke whith the message below. The last ROOT version I used was the v5-30-00-rc2. Can be this error related the some modification in the new ROOT version? How can I avoid it.

Thanks in advance for the help,

Cheers,

Melinda

---

There was a crash (#8 0x025862ed in SigHandler(ESignals) ()). This is the entire stack trace of all threads:

---

Thread 3 (Thread 0xb7ea9b90 (LWP 10327)):
#0 0x005fb402 in __kernel_vsyscall ()
#1 0x0229f061 in select () from /lib/libc.so.6
#2 0x003b8a57 in dim_usleep (usecs=100000) at ./src/dtq.c:291
#3 0x003b8b7d in dtq_task (dummy=0x3e0c30) at ./src/dtq.c:325
#4 0x003b9d9b in dim_dtq_thread (tag=0x0) at ./src/dim_thr.c:99
#5 0x00d5a832 in start_thread () from /lib/libpthread.so.0
#6 0x022a64de in clone () from /lib/libc.so.6

Thread 2 (Thread 0xb7473b90 (LWP 10328)):
#0 0x005fb402 in __kernel_vsyscall ()
#1 0x0229f061 in select () from /lib/libc.so.6
#2 0x003b72e4 in tcpip_task (dummy=0x3e0c30) at ./src/tcpip.c:713
#3 0x003b9d48 in dim_tcpip_thread (tag=0x0) at ./src/dim_thr.c:63
#4 0x00d5a832 in start_thread () from /lib/libpthread.so.0
#5 0x022a64de in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb7f186e0 (LWP 10272)):
#0 0x005fb402 in __kernel_vsyscall ()
#1 0x022658bb in waitpid () from /lib/libc.so.6
#2 0x0220a1ab in do_system () from /lib/libc.so.6
#3 0x0220a542 in system () from /lib/libc.so.6
#4 0x00d62efd in system () from /lib/libpthread.so.0
#5 0x02581d6d in TUnixSystem::Exec(char const*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#6 0x0258991d in TUnixSystem::StackTrace() ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#7 0x0258621b in TUnixSystem::DispatchSignals(ESignals) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#8 0x025862ed in SigHandler(ESignals) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#9 0x0257f1e4 in sighandler(int) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#10 <signal handler called>
#11 0x0e3a8864 in ?? ()
#12 0x0276ab38 in TInstrumentedIsAProxy<TObject>::operator()(void const*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#13 0x0254aa88 in TClass::GetActualClass(void const*) const ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#14 0x0016846f in TBufferFile::WriteObjectAny(void const*, TClass const*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#15 0x02529fb5 in TList::Streamer(TBuffer&) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#16 0x02546174 in TClass::StreamerTObjectInitialized(void*, TBuffer&,
TClass const*) const ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#17 0x0016f35f in TBufferFile::WriteFastArray(void**, TClass const*, int,
bool, TMemberStreamer*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#18 0x00252950 in int TStreamerInfo::WriteBufferAux<char**>(TBuffer&,
char** const&, int, int, int, int) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#19 0x001bc159 in TStreamerInfoActions::GenericWriteAction(TBuffer&, void*,
TStreamerInfoActions::TConfiguration const*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#20 0x0016a3c7 in

TBufferFile::ApplySequence(TStreamerInfoActions::TActionSequence const&, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#21 0x0016a4b2 in TBufferFile::WriteClassBuffer(TClass const*, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#22 0x05463c73 in TH1::Streamer(TBuffer&) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libHist.so.5.32
#23 0x05533ce4 in ROOT::streamer_TH1(TBuffer&, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libHist.so.5.32
#24 0x02576bb9 in TStreamerBase::WriteBuffer(TBuffer&, char*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#25 0x00255b3e in int TStreamerInfo::WriteBufferAux<char**>(TBuffer&,
char** const&, int, int, int, int) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#26 0x001bc159 in TStreamerInfoActions::GenericWriteAction(TBuffer&, void*,
TStreamerInfoActions::TConfiguration const*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#27 0x0016a3c7 in

TBufferFile::ApplySequence(TStreamerInfoActions::TActionSequence const&, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#28 0x0016a4b2 in TBufferFile::WriteClassBuffer(TClass const*, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#29 0x05483a33 in TH2::Streamer(TBuffer&) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libHist.so.5.32
#30 0x05535a34 in ROOT::streamer_TH2(TBuffer&, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libHist.so.5.32
#31 0x02576bb9 in TStreamerBase::WriteBuffer(TBuffer&, char*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#32 0x00255b3e in int TStreamerInfo::WriteBufferAux<char**>(TBuffer&,
char** const&, int, int, int, int) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#33 0x001bc159 in TStreamerInfoActions::GenericWriteAction(TBuffer&, void*,
TStreamerInfoActions::TConfiguration const*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#34 0x0016a3c7 in

TBufferFile::ApplySequence(TStreamerInfoActions::TActionSequence const&, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#35 0x0016a4b2 in TBufferFile::WriteClassBuffer(TClass const*, void*) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#36 0x05483b69 in TH2F::Streamer(TBuffer&) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libHist.so.5.32
#37 0x001746c7 in TDirectoryFile::CloneObject(TObject const*, bool) ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libRIO.so.5.32
#38 0x024b3dd0 in TObject::Clone(char const*) const ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32
#39 0x024b2eec in TNamed::Clone(char const*) const ()

   from /home/msicilia/workdata1/alice/root/v5-32-01/lib/libCore.so.5.32 Received on Thu Mar 08 2012 - 11:58:42 CET