Processing /home/alitrain/train-steer/extract_syswatch.C... *** Break *** segmentation violation E-TFile::TFile: file syswatch.root does not exist =========================================================== There was a crash. This is the entire stack trace of all threads: =========================================================== #0 0x00007fe8be83982e in waitpid () from /lib64/libc.so.6 #1 0x00007fe8be7cb479 in do_system () from /lib64/libc.so.6 #2 0x00007fe8c076ef9a in Exec (shellcmd=, this=0xe4b590) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/unix/src/TUnixSystem.cxx:2172 #3 TUnixSystem::StackTrace (this=0xe4b590) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/unix/src/TUnixSystem.cxx:2419 #4 0x00007fe8c0770f6c in TUnixSystem::DispatchSignals (this=0xe4b590, sig=kSigSegmentationViolation) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/unix/src/TUnixSystem.cxx:1294 #5 #6 0x00007fe8c05e7018 in G__G__Base1_8_0_33 (result7=result7 entry=0x7ffe2621ffe0, funcname=funcname entry=0x22aa080 "", libp=libp entry=0x7ffe26220020, hash=hash entry=0) at /build/workarea/sw/20155909/1/BUILD/6e5ed1cd2caa32a01c6ce5bee5f7739d356af4c2/ROOT/core/base/G__Base1.cxx:7394 #7 0x00007fe8c2ec612e in Cint::G__ExceptionWrapper (funcp=funcp entry=0x7fe8c05e7000 , result7=result7 entry=0x7ffe2621ffe0, funcname=funcname entry=0x22aa080 "", libp=libp entry=0x7ffe26220020, hash=hash entry=0) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/Api.cxx:393 #8 0x00007fe8c2fbbad4 in G__execute_call (result7=result7 entry=0x7ffe2621ffe0, libp=libp entry=0x7ffe26220020, ifunc=ifunc entry=0x22aa080, ifn=ifn entry=0) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/newlink.cxx:2408 #9 0x00007fe8c2fbbe69 in G__call_cppfunc (result7=0x7ffe2621ffe0, libp=0x7ffe26220020, ifunc=0x22aa080, ifn=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/newlink.cxx:2612 #10 0x00007fe8c2f2a411 in G__interpret_func (result7=0x7ffe2621ffe0, funcname=0x2243280 "Get", libp=0x7ffe26220020, hash=288, p_ifunc=0x22aa080, funcmatch=1, memfunc_flag=1) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/ifunc.cxx:5791 #11 0x00007fe8c2efe435 in G__getfunction (item=0xe6e9d7 "Get(\"syswatch\")", known3=, memfunc_flag=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/func.cxx:2660 #12 0x00007fe8c2edb34d in G__getstructmem (store_var_type=store_var_type entry=112, varname=..., membername=membername entry=0xe6e9d7 "Get(\"syswatch\")", memnamesize=memnamesize entry=2147483647, tagname=tagname entry=0xf9ed60 "gFile", known2=0x7ffe2622b4c4, varglobal=0x7fe8c37cd780 , objptr=2) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/var.cxx:6821 #13 0x00007fe8c2ed3932 in G__getvariable (item=0xe6e9d0 "gFile->Get(\"syswatch\")", known=0x7ffe2622b4c4, varglobal=0x7fe8c37cd780 , varlocal=0x7ffe2623e7f0) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/var.cxx:5407 #14 0x00007fe8c2f9f0db in G__getitem (item=0xe6e9d0 "gFile->Get(\"syswatch\")") at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1906 #15 0x00007fe8c2fa58bc in G__getexpr (expression=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1488 #16 0x00007fe8c2efdcf2 in G__getfunction (item=0xe6dda0 "(TTree*)gFile->Get(\"syswatch\")", known3=0x7ffe26238844, memfunc_flag=0) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/func.cxx:2410 #17 0x00007fe8c2f9f5a6 in G__getitem (item=0xe6dda0 "(TTree*)gFile->Get(\"syswatch\")") at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1918 #18 0x00007fe8c2fa58bc in G__getexpr (expression=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1488 #19 0x00007fe8c2fa4762 in G__getexpr (expression=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1446 #20 0x00007fe8c2f4382d in G__exec_statement (mparen=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/parse.cxx:6980 #21 0x00007fe8c2f2c029 in G__interpret_func (result7=, funcname=, libp=, hash=, p_ifunc=0x2242610, funcmatch=, memfunc_flag=0) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/ifunc.cxx:6710 #22 0x00007fe8c2efe499 in G__getfunction (item=0xe5fc50 "extract_syswatch()", known3=, memfunc_flag=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/func.cxx:2901 #23 0x00007fe8c2f9f5a6 in G__getitem (item=0xe5fc50 "extract_syswatch()") at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1918 #24 0x00007fe8c2fa58bc in G__getexpr (expression=expression entry=0x2242ac0 "extract_syswatch()") at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1488 #25 0x00007fe8c2faf5c8 in G__calc_internal (exprwithspace=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/expr.cxx:1071 #26 0x00007fe8c2f18827 in G__process_cmd (line=, prompt=, more=, err=0x7ffe2624d41c, rslt=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/cint/cint/src/pause.cxx:2331 #27 0x00007fe8c074d22a in TCint::ProcessLine (this=0xe502d0, line=0x2241be0 ".X /home/alitrain/train-steer/extract_syswatch.C", error=0x7ffe2624e1cc) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/meta/src/TCint.cxx:549 #28 0x00007fe8c0748337 in TCint::ProcessLineSynch (this=0xe502d0, line=0x2241be0 ".X /home/alitrain/train-steer/extract_syswatch.C", error=0x7ffe2624e1cc) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/meta/src/TCint.cxx:631 #29 0x00007fe8c07b714d in TApplication::ExecuteFile (file=, error=0x7ffe2624e1cc, keep=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/base/src/TApplication.cxx:1110 #30 0x00007fe8c07b8154 in TApplication::ProcessLine (this=0x17ff950, line=, sync=, err=0x7ffe2624e1cc) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/base/src/TApplication.cxx:959 #31 0x00007fe8d40e02d1 in TRint::Run (this=0x17ff950, retrn=) at /build/workarea/sw/20155909/1/SOURCES/ROOT/v5-34-30-alice10/v5-34-30-alice10/core/rint/src/TRint.cxx:417 #32 0x00000000004025a9 in main (argc=1, argv=0x7ffe262503b8) at /build/workarea/sw/20155914/1/SOURCES/AliRoot/v5-09-35/v5-09-35/ALIROOT/aliroot.cxx:145 =========================================================== The crash is most likely caused by a problem in your script. Try to compile it (.L myscript.C+g) and fix any errors. If that does not help 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. Function extract_syswatch() busy flag cleared