TTreeReader(Value/Array) fix #2
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Why TObjArray when you use TClonesArray below?
Author
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It was to try to force gdb to know what TObjArray was. I will remove it as it is not needed.
Axel-Naumann
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Sep 18, 2014
With the unique_ptr, we were crash due to the held over reference described
below. Trying to move the m_ExternalSemaSource deletion after the m_IncrParser
deletion also leads to crash due to the double deletion (once by the ASTContext,
once by m_ExternalSemaSource) of the ExternalSemaSource.
If m_Callbacks is declared after m_IncrParser, it will be deleted first
and if m_ExternalSemaSource is a unique_ptr, it willbe deleted before
m_IncrParser is delete.
During the Incremental parser deletion, there is a call to
CodeGenModule::Release, then EmitTargetMetdata is called and it tries to
get the most recent decl which calls
clang::LazyGenerationalUpdatePtr<...>::get
which has a LazyVal which has a cached pointer to the AST external
source. So this placement is necessary to solve a tear down crash.
#0 clang::LazyGenerationalUpdatePtr<clang::Decl const*, clang::Decl*, &(clang::ExternalASTSource::CompleteRedeclChain(clang::Decl const*))>::get (this=0x7fff5fbfe0e0, O=0x1069c3f90) at ExternalASTSource.h:428
428 (LazyVal->ExternalSource->*Update)(O);
(gdb) l
423 /// Get the value of this pointer, updating its owner if necessary.
424 T get(Owner O) {
425 if (LazyData *LazyVal = Value.template dyn_cast<LazyData*>()) {
426 if (LazyVal->LastGeneration != LazyVal->ExternalSource->getGeneration()) {
427 LazyVal->LastGeneration = LazyVal->ExternalSource->getGeneration();
428 (LazyVal->ExternalSource->*Update)(O);
429 }
430 return LazyVal->LastValue;
431 }
432 return Value.template get<T>();
#0 clang::LazyGenerationalUpdatePtr<clang::Decl const*, clang::Decl*, &(clang::ExternalASTSource::CompleteRedeclChain(clang::Decl const*))>::get (this=0x7fff5fbfe0e0, O=0x1069c3f90) at ExternalASTSource.h:428
#1 0x000000010005ce38 in clang::Redeclarable<clang::FunctionDecl>::DeclLink::getNext (this=0x1069c3ff0, D=0x1069c3f90) at Redeclarable.h:74
#2 0x000000010005cd81 in clang::Redeclarable<clang::FunctionDecl>::getNextRedeclaration (this=0x1069c3ff0) at Redeclarable.h:119
#3 0x000000010005d0b3 in clang::Redeclarable<clang::FunctionDecl>::getMostRecentDecl (this=0x1069c3ff0) at Redeclarable.h:161
#4 0x000000010137bfdc in clang::FunctionDecl::getMostRecentDeclImpl (this=0x1069c3f90) at Decl.h:1568
#5 0x00000001004b5346 in clang::Decl::getMostRecentDecl (this=0x1069c3f90) at DeclBase.h:806
#6 0x0000000100897128 in clang::CodeGen::CodeGenModule::EmitTargetMetadata (this=0x10689aa00) at /Users/pcanal/root_working/code/rootcling/interpreter/llvm/src/tools/clang/lib/CodeGen/CodeGenModule.cpp:3271
#7 0x0000000100895237 in clang::CodeGen::CodeGenModule::Release (this=0x10689aa00) at /Users/pcanal/root_working/code/rootcling/interpreter/llvm/src/tools/clang/lib/CodeGen/CodeGenModule.cpp:395
#8 0x0000000100981b3c in clang::CodeGeneratorImpl::ReleaseModule (this=0x106506d70) at /Users/pcanal/root_working/code/rootcling/interpreter/llvm/src/tools/clang/lib/CodeGen/ModuleBuilder.cpp:82
#9 0x00000001001c3f88 in ~IncrementalParser (this=0x1065047e0) at /Users/pcanal/root_working/code/rootcling/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:168
#10 0x00000001001c3f25 in ~IncrementalParser (this=0x1065047e0) at /Users/pcanal/root_working/code/rootcling/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:166
#11 0x00000001001d8905 in std::__1::default_delete<cling::IncrementalParser>::operator() () at /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/memory:2426
#12 0x00000001001d8905 in ~unique_ptr [inlined] () at /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/c++/v1/memory:2625
#13 0x00000001001d8905 in ~Interpreter (this=0x7fff5fbff020) at memory:2593
#14 0x00000001001d8355 in ~Interpreter (this=0x7fff5fbff020) at /Users/pcanal/root_working/code/rootcling/interpreter/cling/lib/Interpreter/Interpreter.cpp:229
#15 0x00000001002b0318 in main (argc=1, argv=0x7fff5fbff740) at /Users/pcanal/root_working/code/rootcling/interpreter/cling/tools/driver/cling.cpp:97
Axel-Naumann
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Nov 23, 2015
ROOT needs reflection information about classes. One way to incorporate this
information is to use a ClassDef macro, which adds a few members to the
classes. For example, how to read/write the class on disk (aka streamer).
The ClassDef adds forward declaration of a streamer function (and a few others)
in the body of the class. Later on a special tool (aka rootcling) defines the
forward declarations unless told otherwise by the dictionary generation driver
(aka Linkdef file). Simply explained, the ROOT IO-aware class *declare* a few
functions, whoose definitions will come from a dictionary.
As always the interesting part comes when C++ templates come around. Depending
on the order of the header files, which appear in the dictionaries the template
class can be instantiated. For example:
A.h: template<class T> struct TMyClassT { ...; ClassDef(MyClassT, 1); };
B.h: struct S { TMyClassT<int> var; };
G__: #include "A.h" // #1
#include "B.h" // #2
// Definitions of the contents of the ClassDef.
B.h forces an implicit instantiation of TMyClassT *before* the compiler can see
the definitions of the ClassDef. Namely,
template <> TClass *TMyClassT<int>::Class(){} is seen after #2 when the compiler
has instantiated it. C++ 14.7.3/6 explains it as:
"If a template, a member template or a member of a class template is explicitly
specialized then that specialization shall be declared before the first use of
that specialization that would cause an implicit instantiation to take place, in
every translation unit in which such a use occurs; no diagnostic is required."
Saying that what we do makes the TU ill-formed but no diagnostic is required.
Modules are more strict in that respect and issue diagnostics. This commit
introduces a workaround while the actual solution to the problem is being
developed. As Axel and I discussed a real solution would be to implement a
ClassDef macro which inlines the contents, disallowing custom streamers
covering 99.9% of the cases.
Axel-Naumann
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May 18, 2017
If the domain name is ".local", the DNS resolver in MacOS goes belly up: it seems to use a dedicated resolver which does not reply, hitting the timeout: $ scutil --dns ... resolver #2 domain : local options : mdns timeout : 5 flags : Request A records, Request AAAA records reach : Not Reachable order : 300000 This patch simply ignores ".local", making the answer both useful and fast.
Axel-Naumann
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that referenced
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Jun 23, 2017
Axel-Naumann
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that referenced
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Feb 5, 2018
In the example below, thread #11 is waiting on the ‘AppKit lock’ while thread #1 is waiting on the ROOT read lock and thread #12 is waiting on the ROOT write lock. In thread #11, the ROOT write lock is taken/held by frame #9, TCanvas::Update, to ‘serialize’ the update to the windowing system. In thread #1, the ‘AppKit lock’ is likely taken/held by a frame in the #16 to #40 range. This commit remove the dead lock by removing the unnecessary use of code needing the ROOT lock within code run under the AppKit lock so that in they case thread #1 no longer need to wait for the ROOT (read) lock. In addition it should be investigated whether the ROOT (write) lock should be taken in thread #1, frame 1 (TMacOSXSystem::ProcessPendingEvents) for the same reason it is taken in TCanvas::Update. thread #11 frame #0: 0x00007fffab109bf2 libsystem_kernel.dylib`__psynch_cvwait + 10 frame #1: 0x00007fffab1f57fa libsystem_pthread.dylib`_pthread_cond_wait + 712 frame #2: 0x00007fff93394e34 AppKit`-[NSViewHierarchyLock lockForReadingWithExceptionHandler:] + 287 frame #3: 0x00007fff934948ae AppKit`-[NSWindow _copyAcquiredViewHierarchyLock] + 126 frame #4: 0x00007fff9349442c AppKit`-[NSView lockFocusIfCanDraw] + 159 frame #5: 0x000000011c09063d libGCocoa.so`ROOT::MacOSX::X11::CommandBuffer::Flush(this=0x0000000100dbb080, impl=0x0000000100dbb000) at X11Buffer.mm:550 frame #6: 0x000000011c04e9c4 libGCocoa.so`TGCocoa::Update(this=0x0000000100ad1bc0, mode=1) at TGCocoa.mm:536 frame #7: 0x000000011c04ff3e libGCocoa.so`TGCocoa::UpdateWindow(this=0x0000000100ad1bc0, (null)=1) at TGCocoa.mm:776 frame #8: 0x000000011ad70827 libGpad.so`TCanvas::Flush(this=0x000000012274e740) at TCanvas.cxx:1096 frame #9: 0x000000011ad7830f libGpad.so`TCanvas::Update(this=0x000000012274e740) at TCanvas.cxx:2287 frame #10: 0x0000000100fe4e86 threadsh2_C.so`handle2((null)=0x0000000000000001) at threadsh2.C:105 frame #11: 0x0000000100f55680 libThread.so`TThread::Function(ptr=0x0000000122753b00) at TThread.cxx:821 frame #12: 0x00007fffab1f493b libsystem_pthread.dylib`_pthread_body + 180 frame #13: 0x00007fffab1f4887 libsystem_pthread.dylib`_pthread_start + 286 frame #14: 0x00007fffab1f408d libsystem_pthread.dylib`thread_start + 13 thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP frame #0: 0x00007fffab109bf2 libsystem_kernel.dylib`__psynch_cvwait + 10 frame #1: 0x00007fffab1f57fa libsystem_pthread.dylib`_pthread_cond_wait + 712 frame #2: 0x00007fffa9b734cd libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 47 frame #3: 0x0000000100f76b6f libThread.so`void std::__1::condition_variable_any::wait<std::__1::unique_lock<std::__1::mutex> >(this=0x0000000122753a28, __lock=0x00007fff5fbf5cf8) at condition_variable:202 frame #4: 0x0000000100f6887e libThread.so`ROOT::TReentrantRWLock<std::__1::mutex, ROOT::Internal::RecurseCounts>::ReadLock() [inlined] void std::__1::condition_variable_any::wait<std::__1::unique_lock<std::__1::mutex>, ROOT::TReentrantRWLock<std::__1::mutex, ROOT::Internal::RecurseCounts>::ReadLock()::'lambda'()>(this=0x0000000122753a28, __lock=0x00007fff5fbf5cf8, __pred=(anonymous class) @ 0x00007fff5fbf5e08)::'lambda'()) at condition_variable:211 frame #5: 0x0000000100f68857 libThread.so`ROOT::TReentrantRWLock<std::__1::mutex, ROOT::Internal::RecurseCounts>::ReadLock(this=0x00000001227539d8) at TReentrantRWLock.cxx:95 frame #6: 0x0000000100f5c719 libThread.so`ROOT::TRWMutexImp<std::__1::mutex, ROOT::Internal::RecurseCounts>::ReadLock(this=0x00000001227539d0) at TRWMutexImp.cxx:33 frame #7: 0x00000001000f52d1 libCore.so`ROOT::TReadLockGuard::TReadLockGuard(this=0x00007fff5fbf5f48, mutex=0x00000001227539d0) at TVirtualRWMutex.h:89 frame #8: 0x00000001000f275d libCore.so`ROOT::TReadLockGuard::TReadLockGuard(this=0x00007fff5fbf5f48, mutex=0x00000001227539d0) at TVirtualRWMutex.h:88 frame #9: 0x00000001002fcebf libCore.so`THashTable::FindObject(this=0x0000000100b0e120, name="TGTextView") const at THashTable.cxx:242 frame #10: 0x00000001003a67fd libCore.so`TClass::GetClass(name="TGTextView", load=true, silent=true) at TClass.cxx:2900 frame #11: 0x00000001003c9e16 libCore.so`TClass::InheritsFrom(this=0x0000000118fe1250, classname="TGTextView") const at TClass.cxx:4683 frame #12: 0x000000010024cb6e libCore.so`TObject::InheritsFrom(this=0x0000000126908de0, classname="TGTextView") const at TObject.cxx:445 frame #13: 0x000000011c03e47f libGCocoa.so`ROOT::MacOSX::X11::ViewIsTextView(viewID=116) at QuartzWindow.mm:899 frame #14: 0x000000011c03e518 libGCocoa.so`ROOT::MacOSX::X11::ViewIsTextView(view=0x0000000126908ee0) at QuartzWindow.mm:907 frame #15: 0x000000011c04706c libGCocoa.so`::-[QuartzView drawRect:](self=0x0000000126908ee0, _cmd="drawRect:", dirtyRect=(origin = (x = 0, y = 0), size = (width = 29, height = 21))) at QuartzWindow.mm:2728 frame #16: 0x00007fff934a4f99 AppKit`-[NSView _drawRect:clip:] + 2276 frame #17: 0x00007fff934f4f2f AppKit`-[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1753 frame #18: 0x00007fff934f539a AppKit`-[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2884 frame #19: 0x00007fff934f539a AppKit`-[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2884 frame #20: 0x00007fff934f539a AppKit`-[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2884 frame #21: 0x00007fff934a2ad2 AppKit`-[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 837 frame #22: 0x00007fff934a22af AppKit`-[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 334 frame #23: 0x00007fff934a06d8 AppKit`-[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 2452 frame #24: 0x00007fff9349bfca AppKit`-[NSView displayIfNeeded] + 1748 frame #25: 0x00007fff9349b8db AppKit`-[NSWindow displayIfNeeded] + 230 frame #26: 0x00007fff93bfbcb4 AppKit`___NSWindowGetDisplayCycleObserver_block_invoke.6228 + 277 frame #27: 0x00007fff9349b3b9 AppKit`__37+[NSDisplayCycle currentDisplayCycle]_block_invoke + 454 frame #28: 0x00007fff9b384cc6 QuartzCore`CA::Transaction::run_commit_handlers(CATransactionPhase) + 46 frame #29: 0x00007fff9b48e8ac QuartzCore`CA::Context::commit_transaction(CA::Transaction*) + 160 frame #30: 0x00007fff9b3837a1 QuartzCore`CA::Transaction::commit() + 475 frame #31: 0x00007fff9377e8b1 AppKit`__37+[NSDisplayCycle currentDisplayCycle]_block_invoke.31 + 323 frame #32: 0x00007fff95874d37 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23 frame #33: 0x00007fff95874ca7 CoreFoundation`__CFRunLoopDoObservers + 391 frame #34: 0x00007fff958556d9 CoreFoundation`__CFRunLoopRun + 873 frame #35: 0x00007fff95855114 CoreFoundation`CFRunLoopRunSpecific + 420 frame #36: 0x00007fff94db5ebc HIToolbox`RunCurrentEventLoopInMode + 240 frame #37: 0x00007fff94db5bf9 HIToolbox`ReceiveNextEventCommon + 184 frame #38: 0x00007fff94db5b26 HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 71 frame #39: 0x00007fff9334ca54 AppKit`_DPSNextEvent + 1120 frame #40: 0x00007fff93ac87ee AppKit`-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2796 frame #41: 0x0000000100491031 libCore.so`TMacOSXSystem::ProcessPendingEvents(this=0x0000000100c06d60) at TMacOSXSystem.mm:473 frame #42: 0x000000010049097d libCore.so`TMacOSXSystem::DispatchOneEvent(this=0x0000000100c06d60, pendingOnly=true) at TMacOSXSystem.mm:365 frame #43: 0x0000000100294f4b libCore.so`TSystem::ProcessEvents(this=0x0000000100c06d60) at TSystem.cxx:429 frame #44: 0x0000000100fe5844 threadsh2_C.so`threadsh2() at threadsh2.C:196 frame #45: 0x0000000100fec06a frame #46: 0x0000000103d7dc2f libCling.so`cling::IncrementalExecutor::executeWrapper(this=0x0000000100a1d410, function=(Data = "_Z15__cling_Un1Qu30Pv", Length = 21), returnValue=0x00007fff5fbfbde0) at IncrementalExecutor.h:196 frame #47: 0x0000000103d7db1f libCling.so`cling::Interpreter::RunFunction(this=0x0000000100a0e3b0, FD=0x000000011780f6b0, res=0x00007fff5fbfbde0) at Interpreter.cpp:980 frame #48: 0x0000000103d7a92a libCling.so`cling::Interpreter::EvaluateInternal(this=0x0000000100a0e3b0, input="threadsh2()", CO=CompilationOptions @ 0x00007fff5fbfaae8, V=0x00007fff5fbfbde0, T=0x0000000000000000, wrapPoint=44) at Interpreter.cpp:1232 frame #49: 0x0000000103d79e27 libCling.so`cling::Interpreter::process(this=0x0000000100a0e3b0, input="threadsh2()", V=0x00007fff5fbfbde0, T=0x0000000000000000, disableValuePrinting=false) at Interpreter.cpp:684 frame #50: 0x0000000103e552a5 libCling.so`cling::MetaProcessor::process(this=0x0000000100b65aa0, input_line=(Data = "threadsh2()", Length = 11), compRes=0x00007fff5fbfb540, result=0x00007fff5fbfbde0, disableValuePrinting=false) at MetaProcessor.cpp:341 frame #51: 0x000000010397bd63 libCling.so`HandleInterpreterException(metaProcessor=0x0000000100b65aa0, input_line="threadsh2()", compRes=0x00007fff5fbfb540, result=0x00007fff5fbfbde0) at TCling.cxx:2053 frame #52: 0x000000010397a16e libCling.so`TCling::ProcessLine(this=0x0000000100a0de40, line=".X /opt/build/root_builds/master.debug/tutorials/thread/./threadsh2.C+", error=0x00007fff5fbfd694) at TCling.cxx:2170 frame #53: 0x0000000103984436 libCling.so`TCling::ProcessLineSynch(this=0x0000000100a0de40, line=".X /opt/build/root_builds/master.debug/tutorials/thread/./threadsh2.C+", error=0x00007fff5fbfd694) at TCling.cxx:3044 frame #54: 0x00000001001f3133 libCore.so`TApplication::ExecuteFile(file="threadsh2.C+", error=0x00007fff5fbfd694, keep=false) at TApplication.cxx:1143 frame #55: 0x00000001001f19e0 libCore.so`TApplication::ProcessFile(this=0x0000000100b113e0, file="threadsh2.C+", error=0x00007fff5fbfd694, keep=false) at TApplication.cxx:1015 frame #56: 0x00000001001f138f libCore.so`TApplication::ProcessLine(this=0x0000000100b113e0, line=".x threadsh2.C+", sync=false, err=0x00007fff5fbfd694) at TApplication.cxx:988 frame #57: 0x000000010009878d libRint.so`TRint::ProcessLineNr(this=0x0000000100b113e0, filestem="ROOT_cli_", line=".x threadsh2.C+", error=0x00007fff5fbfd694) at TRint.cxx:756 frame #58: 0x0000000100097daf libRint.so`TRint::Run(this=0x0000000100b113e0, retrn=false) at TRint.cxx:416 frame #59: 0x00000001000027a4 root.exe`main(argc=1, argv=0x00007fff5fbff780) at rmain.cxx:30 frame #60: 0x00007fffaafdb235 libdyld.dylib`start + 1 thread #12 frame #0: 0x00007fffab109bf2 libsystem_kernel.dylib`__psynch_cvwait + 10 frame #1: 0x00007fffab1f57fa libsystem_pthread.dylib`_pthread_cond_wait + 712 frame #2: 0x00007fffa9b734cd libc++.1.dylib`std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 47 frame #3: 0x0000000100f76b6f libThread.so`void std::__1::condition_variable_any::wait<std::__1::unique_lock<std::__1::mutex> >(this=0x0000000122753a28, __lock=0x0000700009f18898) at condition_variable:202 frame #4: 0x0000000100f697b4 libThread.so`ROOT::TReentrantRWLock<std::__1::mutex, ROOT::Internal::RecurseCounts>::WriteLock() [inlined] void std::__1::condition_variable_any::wait<std::__1::unique_lock<std::__1::mutex>, ROOT::TReentrantRWLock<std::__1::mutex, ROOT::Internal::RecurseCounts>::WriteLock()::'lambda'()>(this=0x0000000122753a28, __lock=0x0000700009f18898, __pred=(anonymous class) @ 0x0000700009f18a28)::'lambda'()) at condition_variable:211 frame #5: 0x0000000100f69790 libThread.so`ROOT::TReentrantRWLock<std::__1::mutex, ROOT::Internal::RecurseCounts>::WriteLock(this=0x00000001227539d8) at TReentrantRWLock.cxx:175 frame #6: 0x0000000100f5c779 libThread.so`ROOT::TRWMutexImp<std::__1::mutex, ROOT::Internal::RecurseCounts>::WriteLock(this=0x00000001227539d0) at TRWMutexImp.cxx:42 frame #7: 0x0000000100f57df6 libThread.so`ROOT::TVirtualRWMutex::Lock(this=0x00000001227539d0) at TVirtualRWMutex.h:52 frame #8: 0x00000001039b2dd9 libCling.so`TLockGuard::TLockGuard(this=0x0000700009f18b48, mutex=0x00000001227539d0) at TVirtualMutex.h:85 frame #9: 0x000000010397ba8d libCling.so`TLockGuard::TLockGuard(this=0x0000700009f18b48, mutex=0x00000001227539d0) at TVirtualMutex.h:85 frame #10: 0x00000001039aa152 libCling.so`TCling::ClassInfo_Factory(this=0x0000000100a0de40, all=true) const at TCling.cxx:7216 frame #11: 0x00000001004150ba libCore.so`TMethodCall::Init(this=0x0000700009f18d80, cl=0x0000000100af0470, method="Print", params="", objectIsConst=false) at TMethodCall.cxx:259 frame #12: 0x0000000100414ff3 libCore.so`TMethodCall::TMethodCall(this=0x0000700009f18d80, cl=0x0000000100af0470, method="Print", params="") at TMethodCall.cxx:62 frame #13: 0x000000010041519d libCore.so`TMethodCall::TMethodCall(this=0x0000700009f18d80, cl=0x0000000100af0470, method="Print", params="") at TMethodCall.cxx:61 frame #14: 0x0000000100fe471a threadsh2_C.so`handle1((null)=0x0000000000000000) at threadsh2.C:48 frame #15: 0x0000000100f55680 libThread.so`TThread::Function(ptr=0x0000000122754790) at TThread.cxx:821 frame #16: 0x00007fffab1f493b libsystem_pthread.dylib`_pthread_body + 180 frame #17: 0x00007fffab1f4887 libsystem_pthread.dylib`_pthread_start + 286 frame #18: 0x00007fffab1f408d libsystem_pthread.dylib`thread_start + 13
Axel-Naumann
pushed a commit
that referenced
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Oct 29, 2018
…transactions. This fixes https://sft.its.cern.ch/jira/browse/ROOT-9672 by having cling::Interpreter::DeclareCFunction return the transaction containing the compiled code. With the previous code, cling::Interpreter::compileFunction will get confused by transaction created during the callbacks executed during the cling::IncrementalParser::commitTransaction of the main transaction. Reproducer: With a main composed of 'only': int main(int argc, char ** argv) { char const * class_string = (argc == 2) ? argv[1] : "std::vector<int>"; auto const result [[gnu::unused]] = TClass::GetClass(class_string); return 0; } which is a representation of real use case (in a more complex setup) in ART. We were getting: Error in <TClingCallFunc::make_wrapper>: Failed to compile ==== SOURCE BEGIN ==== #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wformat-security" __attribute__((used)) extern "C" void __cf_0(void* obj, int nargs, void** args, void* ret) { if (ret) { (*(TStreamerInfo**)ret) = new TStreamerInfo(); return; } else { new TStreamerInfo(); return; } } #pragma clang diagnostic pop ==== SOURCE END ==== Error in <TClingCallFunc::ExecT>: Called with no wrapper, not implemented! Error in <TVirtualStreamerInfo::Factory>: The plugin handler for TVirtualStreamerInfo was found but failed to create the factory object! The reason is that during TClingCallFunc::make_wrapper, the call to cling::Interpreter::compileFunction ends with: if (const llvm::GlobalValue* GV = getLastTransaction()->getModule()->getNamedValue(name)) However in the 'broken' case, the getLastTransaction does not return the transaction for the code being compiled by DeclareCFunction but instead the one used/created at: #0 cling::IncrementalParser::endTransaction (this=0x4a2980, T=0x8c0fb0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:345 #1 0x00007fffeebc7899 in cling::Interpreter::PushTransactionRAII::pop (this=0x7fffffffcb00) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:111 #2 0x00007fffeebc785e in cling::Interpreter::PushTransactionRAII::~PushTransactionRAII (this=0x7fffffffcb00, __in_chrg=<optimized out>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:106 #3 0x00007fffeebeb659 in cling::LookupHelper::findScope (this=0x4a9dd0, className=..., diagOnOff=cling::LookupHelper::NoDiagnostics, resultType=0x7fffffffcd08, instantiateTemplate=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/LookupHelper.cpp:466 #4 0x00007fffeeabe0df in TCling::CheckClassInfo (this=0x4a0550, name=<optimized out>, autoload=<optimized out>, isClassOrNamespaceOnly=<optimized out>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:3630 #5 0x00007ffff7c3040d in TClass::Init (this=this@entry=0xdafd20, name=name@entry=0x7ffff7cb7638 "TGlobal", cversion=cversion@entry=2, typeinfo=typeinfo@entry=0x7ffff7d8b6d8 <typeinfo for TGlobal>, isa=isa@entry=0x477430, dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h", ifil=<optimized out>, dl=<optimized out>, il=<optimized out>, givenInfo=<optimized out>, silent=<optimized out>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1431 #6 0x00007ffff7c3a1b8 in TClass::TClass (this=0xdafd20, name=0x7ffff7cb7638 "TGlobal", cversion=<optimized out>, info=..., isa=0x477430, dfil=0x7ffff7cb8cab "TGlobal.h", ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25, silent=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1273 #7 0x00007ffff7c3a72a in ROOT::CreateClass (cname=0x7ffff7cb7638 "TGlobal", id=id@entry=2, info=..., isa=isa@entry=0x477430, dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h", ifil=ifil@entry=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:5607 #8 0x00007ffff7c4b552 in ROOT::Internal::TDefaultInitBehavior::CreateClass (il=25, dl=27, ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dfil=0x7ffff7cb8cab "TGlobal.h", isa=0x477430, info=..., id=2, cname=<optimized out>, this=0x7ffff7da7508 <ROOT::Internal::DefineBehavior(void*, void*)::theDefault>) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/Rtypes.h:176 #9 ROOT::TGenericClassInfo::GetClass (this=0x7ffff7dab660 <ROOT::GenerateInitInstanceLocal(TGlobal const*)::instance>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGenericClassInfo.cxx:250 #10 0x00007ffff7b1a2d8 in TGlobal::Class () at /home/pcanal/root_builds/v6-14-00-patches/opt/core/base/G__Core.cxx:17156 #11 0x00007ffff7ac01de in TGlobal::IsA (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48 #12 TGlobal::CheckTObjectHashConsistency (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48 #13 0x00007ffff7be9dcd in TObject::CheckedHash (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TObject.h:314 #14 THashTable::GetCheckedHashValue (this=0xe65a20, obj=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/THashTable.h:94 #15 THashTable::Add (this=0xe65a20, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashTable.cxx:96 #16 0x00007ffff7be6bf1 in THashList::AddLast (this=this@entry=0x5be690, obj=obj@entry=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashList.cxx:100 #17 0x00007ffff7c4e0d1 in TListOfDataMembers::AddLast (this=0x5be690, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TListOfDataMembers.cxx:103 #18 0x00007ffff7ab8785 in TList::Add (obj=0xee3bc0, this=0x5be690) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TList.h:87 #19 TROOT::GetListOfGlobals (this=0x7ffff7da7a60 <ROOT::Internal::GetROOT1()::alloc>, load=load@entry=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/base/src/TROOT.cxx:1767 #20 0x00007fffeeab1058 in TCling::HandleNewDecl (this=0x4a0550, DV=0xedf238, isDeserialized=isDeserialized@entry=true, modifiedTClasses=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:555 #21 0x00007fffeeabb785 in TCling::UpdateListsOnCommitted (this=0x4a0550, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:6115 #22 0x00007fffeebd0103 in cling::MultiplexInterpreterCallbacks::TransactionCommitted (this=0x57fe20, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/MultiplexInterpreterCallbacks.h:76 #23 0x00007fffeed05d71 in cling::IncrementalParser::commitTransaction (this=0x4a2980, PRT=..., ClearDiagClient=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:532 #24 0x00007fffeed06399 in cling::IncrementalParser::Compile (this=0x4a2980, input=..., Opts=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:663 #25 0x00007fffeebcbc4e in cling::Interpreter::DeclareInternal (this=0x4a0f30, input=..., CO=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1195 #26 0x00007fffeebca8e8 in cling::Interpreter::declare (this=0x4a0f30, input=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:823 #27 0x00007fffeebcb560 in cling::Interpreter::DeclareCFunction (this=0x4a0f30, name=..., code=..., withAccessControl=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1096 #28 0x00007fffeebcb862 in cling::Interpreter::compileFunction (this=0x4a0f30, name=..., code=..., ifUnique=false, withAccessControl=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1140 #29 0x00007fffeeafb83c in TClingCallFunc::compile_wrapper (withAccessControl=true, wrapper=..., wrapper_name=..., this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:270 #30 TClingCallFunc::make_wrapper (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:1096 #31 0x00007fffeeafbcb8 in TClingCallFunc::IFacePtr (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2233 #32 0x00007fffeeafbe83 in TClingCallFunc::ExecT<long> (address=0x0, this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2045 #33 TClingCallFunc::ExecInt (this=0xcf3c10, address=0x0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2065 #34 0x00007ffff7c56e8d in TMethodCall::Execute (this=0xd97710, object=<optimized out>, retLong=@0x7fffffffd958: 0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TMethodCall.cxx:457 #35 0x0000000000401009 in TMethodCall::Execute(long&) () #36 0x00000000004010ea in long TPluginHandler::ExecPluginImpl<>() () #37 0x000000000040106d in long TPluginHandler::ExecPlugin<>(int) () #38 0x0000000000400e21 in mytest() () #39 0x0000000000400e92 in main ()
Axel-Naumann
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Oct 31, 2018
…transactions. This fixes https://sft.its.cern.ch/jira/browse/ROOT-9672 by having cling::Interpreter::DeclareCFunction return the transaction containing the compiled code. With the previous code, cling::Interpreter::compileFunction will get confused by transaction created during the callbacks executed during the cling::IncrementalParser::commitTransaction of the main transaction. Reproducer: With a main composed of 'only': int main(int argc, char ** argv) { char const * class_string = (argc == 2) ? argv[1] : "std::vector<int>"; auto const result [[gnu::unused]] = TClass::GetClass(class_string); return 0; } which is a representation of real use case (in a more complex setup) in ART. We were getting: Error in <TClingCallFunc::make_wrapper>: Failed to compile ==== SOURCE BEGIN ==== #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wformat-security" __attribute__((used)) extern "C" void __cf_0(void* obj, int nargs, void** args, void* ret) { if (ret) { (*(TStreamerInfo**)ret) = new TStreamerInfo(); return; } else { new TStreamerInfo(); return; } } #pragma clang diagnostic pop ==== SOURCE END ==== Error in <TClingCallFunc::ExecT>: Called with no wrapper, not implemented! Error in <TVirtualStreamerInfo::Factory>: The plugin handler for TVirtualStreamerInfo was found but failed to create the factory object! The reason is that during TClingCallFunc::make_wrapper, the call to cling::Interpreter::compileFunction ends with: if (const llvm::GlobalValue* GV = getLastTransaction()->getModule()->getNamedValue(name)) However in the 'broken' case, the getLastTransaction does not return the transaction for the code being compiled by DeclareCFunction but instead the one used/created at: #0 cling::IncrementalParser::endTransaction (this=0x4a2980, T=0x8c0fb0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:345 #1 0x00007fffeebc7899 in cling::Interpreter::PushTransactionRAII::pop (this=0x7fffffffcb00) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:111 #2 0x00007fffeebc785e in cling::Interpreter::PushTransactionRAII::~PushTransactionRAII (this=0x7fffffffcb00, __in_chrg=<optimized out>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:106 #3 0x00007fffeebeb659 in cling::LookupHelper::findScope (this=0x4a9dd0, className=..., diagOnOff=cling::LookupHelper::NoDiagnostics, resultType=0x7fffffffcd08, instantiateTemplate=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/LookupHelper.cpp:466 #4 0x00007fffeeabe0df in TCling::CheckClassInfo (this=0x4a0550, name=<optimized out>, autoload=<optimized out>, isClassOrNamespaceOnly=<optimized out>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:3630 #5 0x00007ffff7c3040d in TClass::Init (this=this@entry=0xdafd20, name=name@entry=0x7ffff7cb7638 "TGlobal", cversion=cversion@entry=2, typeinfo=typeinfo@entry=0x7ffff7d8b6d8 <typeinfo for TGlobal>, isa=isa@entry=0x477430, dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h", ifil=<optimized out>, dl=<optimized out>, il=<optimized out>, givenInfo=<optimized out>, silent=<optimized out>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1431 #6 0x00007ffff7c3a1b8 in TClass::TClass (this=0xdafd20, name=0x7ffff7cb7638 "TGlobal", cversion=<optimized out>, info=..., isa=0x477430, dfil=0x7ffff7cb8cab "TGlobal.h", ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25, silent=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:1273 #7 0x00007ffff7c3a72a in ROOT::CreateClass (cname=0x7ffff7cb7638 "TGlobal", id=id@entry=2, info=..., isa=isa@entry=0x477430, dfil=dfil@entry=0x7ffff7cb8cab "TGlobal.h", ifil=ifil@entry=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dl=27, il=25) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TClass.cxx:5607 #8 0x00007ffff7c4b552 in ROOT::Internal::TDefaultInitBehavior::CreateClass (il=25, dl=27, ifil=0x7ffff7cccf88 "/local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGlobal.cxx", dfil=0x7ffff7cb8cab "TGlobal.h", isa=0x477430, info=..., id=2, cname=<optimized out>, this=0x7ffff7da7508 <ROOT::Internal::DefineBehavior(void*, void*)::theDefault>) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/Rtypes.h:176 #9 ROOT::TGenericClassInfo::GetClass (this=0x7ffff7dab660 <ROOT::GenerateInitInstanceLocal(TGlobal const*)::instance>) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TGenericClassInfo.cxx:250 #10 0x00007ffff7b1a2d8 in TGlobal::Class () at /home/pcanal/root_builds/v6-14-00-patches/opt/core/base/G__Core.cxx:17156 #11 0x00007ffff7ac01de in TGlobal::IsA (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48 #12 TGlobal::CheckTObjectHashConsistency (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TGlobal.h:48 #13 0x00007ffff7be9dcd in TObject::CheckedHash (this=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TObject.h:314 #14 THashTable::GetCheckedHashValue (this=0xe65a20, obj=0xee3bc0) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/THashTable.h:94 #15 THashTable::Add (this=0xe65a20, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashTable.cxx:96 #16 0x00007ffff7be6bf1 in THashList::AddLast (this=this@entry=0x5be690, obj=obj@entry=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/cont/src/THashList.cxx:100 #17 0x00007ffff7c4e0d1 in TListOfDataMembers::AddLast (this=0x5be690, obj=0xee3bc0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TListOfDataMembers.cxx:103 #18 0x00007ffff7ab8785 in TList::Add (obj=0xee3bc0, this=0x5be690) at /home/pcanal/root_builds/v6-14-00-patches/opt/include/TList.h:87 #19 TROOT::GetListOfGlobals (this=0x7ffff7da7a60 <ROOT::Internal::GetROOT1()::alloc>, load=load@entry=false) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/base/src/TROOT.cxx:1767 #20 0x00007fffeeab1058 in TCling::HandleNewDecl (this=0x4a0550, DV=0xedf238, isDeserialized=isDeserialized@entry=true, modifiedTClasses=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:555 #21 0x00007fffeeabb785 in TCling::UpdateListsOnCommitted (this=0x4a0550, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TCling.cxx:6115 #22 0x00007fffeebd0103 in cling::MultiplexInterpreterCallbacks::TransactionCommitted (this=0x57fe20, T=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/MultiplexInterpreterCallbacks.h:76 #23 0x00007fffeed05d71 in cling::IncrementalParser::commitTransaction (this=0x4a2980, PRT=..., ClearDiagClient=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:532 #24 0x00007fffeed06399 in cling::IncrementalParser::Compile (this=0x4a2980, input=..., Opts=...) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/IncrementalParser.cpp:663 #25 0x00007fffeebcbc4e in cling::Interpreter::DeclareInternal (this=0x4a0f30, input=..., CO=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1195 #26 0x00007fffeebca8e8 in cling::Interpreter::declare (this=0x4a0f30, input=..., T=0x7fffffffd680) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:823 #27 0x00007fffeebcb560 in cling::Interpreter::DeclareCFunction (this=0x4a0f30, name=..., code=..., withAccessControl=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1096 #28 0x00007fffeebcb862 in cling::Interpreter::compileFunction (this=0x4a0f30, name=..., code=..., ifUnique=false, withAccessControl=true) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/interpreter/cling/lib/Interpreter/Interpreter.cpp:1140 #29 0x00007fffeeafb83c in TClingCallFunc::compile_wrapper (withAccessControl=true, wrapper=..., wrapper_name=..., this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:270 #30 TClingCallFunc::make_wrapper (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:1096 #31 0x00007fffeeafbcb8 in TClingCallFunc::IFacePtr (this=this@entry=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2233 #32 0x00007fffeeafbe83 in TClingCallFunc::ExecT<long> (address=0x0, this=0xcf3c10) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2045 #33 TClingCallFunc::ExecInt (this=0xcf3c10, address=0x0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/metacling/src/TClingCallFunc.cxx:2065 #34 0x00007ffff7c56e8d in TMethodCall::Execute (this=0xd97710, object=<optimized out>, retLong=@0x7fffffffd958: 0) at /local2/pcanal/cint_working/rootcling/v6-14-00-patches/core/meta/src/TMethodCall.cxx:457 #35 0x0000000000401009 in TMethodCall::Execute(long&) () #36 0x00000000004010ea in long TPluginHandler::ExecPluginImpl<>() () #37 0x000000000040106d in long TPluginHandler::ExecPlugin<>(int) () #38 0x0000000000400e21 in mytest() () #39 0x0000000000400e92 in main ()
Axel-Naumann
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Nov 21, 2018
…urrently in a nutshell, the condition was: - Thread #1) a task ends and pushes back processing slot - Thread #2) a task starts and overwrites thread-local TTreeReaderValues - Thread #1) first task deletes TTreeReader See root-project@26e8ace
Axel-Naumann
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Dec 7, 2018
…urrently in a nutshell, the condition was: - Thread #1) a task ends and pushes back processing slot - Thread #2) a task starts and overwrites thread-local TTreeReaderValues - Thread #1) first task deletes TTreeReader See root-project@26e8ace
Axel-Naumann
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Jun 8, 2020
Axel-Naumann
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Axel-Naumann
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Sep 9, 2020
Axel-Naumann
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Apr 29, 2021
Before, MetaParser might have pointed to a StringRef whose storage
was gone, see asan failure in roottest/cling/other/runfileClose.C below.
This was caused by recursive uses of MetaParser; see stack trace below:
the inner recursion returned, but as the same MetaParser object was used
by both frames, the objects cursor now pointed to freed memory.
Instead, create a MetaParser (and MetaLexer) object per input. That way,
their lifetime corresponds to the lifetime of their input.
=================================================================
==529104==ERROR: AddressSanitizer: stack-use-after-return on address 0x7ffff3afd82a at pc 0x7fffea18df6d bp 0x7fffffff8170 sp 0x7fffffff8168
READ of size 1 at 0x7ffff3afd82a thread T0
[Detaching after fork from child process 529183]
#0 0x7fffea18df6c in cling::MetaLexer::Lex(cling::Token&) src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:58:11
#1 0x7fffea190d7c in cling::MetaParser::lookAhead(unsigned int) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:89:15
#2 0x7fffea190bd5 in cling::MetaParser::consumeToken() src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:49:5
#3 0x7fffea191d4d in cling::MetaParser::isLCommand(cling::MetaSema::ActionResult&) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:147:9
#4 0x7fffea1914dd in cling::MetaParser::isCommand(cling::MetaSema::ActionResult&, cling::Value*) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:123:12
#5 0x7fffea191216 in cling::MetaParser::isMetaCommand(cling::MetaSema::ActionResult&, cling::Value*) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:101:33
#6 0x7fffea14e5aa in cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:317:24
#7 0x7fffe99b67b7 in HandleInterpreterException(cling::MetaProcessor*, char const*, cling::Interpreter::CompilationResult&, cling::Value*) src/core/metacling/src/TCling.cxx:2431:29
#8 0x7fffe99bde30 in TCling::Load(char const*, bool) src/core/metacling/src/TCling.cxx:3454:10
#9 0x7ffff7865f11 in TSystem::Load(char const*, char const*, bool) src/core/base/src/TSystem.cxx:1941:27
#10 0x7ffff7b8a0e3 in TUnixSystem::Load(char const*, char const*, bool) src/core/unix/src/TUnixSystem.cxx:2789:20
#11 0x7fffd78dd08b (<unknown module>)
#12 0x7fffe9f8a5d9 in cling::IncrementalExecutor::executeWrapper(llvm::StringRef, cling::Value*) const src/interpreter/cling/lib/Interpreter/IncrementalExecutor.cpp:376:3
#13 0x7fffe9d73dc2 in cling::Interpreter::RunFunction(clang::FunctionDecl const*, cling::Value*) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1141:20
#14 0x7fffe9d6e317 in cling::Interpreter::EvaluateInternal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::CompilationOptions, cling::Value*, cling::Transaction**, unsigned long) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1391:29
#15 0x7fffe9d6c1fe in cling::Interpreter::process(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::Value*, cling::Transaction**, bool) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:819:9
#16 0x7fffea151826 in cling::MetaProcessor::readInputFromFile(llvm::StringRef, cling::Value*, unsigned long, bool) src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:507:22
#17 0x7fffe99b585b in TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:2570:39
#18 0x7fffe99bbfee in TCling::ProcessLineSynch(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:3496:17
#19 0x7ffff77203d3 in TApplication::ExecuteFile(char const*, int*, bool) src/core/base/src/TApplication.cxx:1608:30
#20 0x7ffff771ebdf in TApplication::ProcessFile(char const*, int*, bool) src/core/base/src/TApplication.cxx:1480:11
#21 0x7ffff771e385 in TApplication::ProcessLine(char const*, bool, int*) src/core/base/src/TApplication.cxx:1453:14
#22 0x7ffff7f8157a in TRint::ProcessLineNr(char const*, char const*, int*) src/core/rint/src/TRint.cxx:766:11
#23 0x7ffff7f802f0 in TRint::Run(bool) src/core/rint/src/TRint.cxx:424:22
#24 0x4ff96d in main src/main/src/rmain.cxx:30:12
#25 0x7ffff6e040b2 in __libc_start_main /build/glibc-YbNSs7/glibc-2.31/csu/../csu/libc-start.c:308:16
#26 0x41f35d in _start (asan/bin/root.exe+0x41f35d)
Address 0x7ffff3afd82a is located in stack of thread T0 at offset 42 in frame
#0 0x7fffe99b3d8f in TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:2456
This frame has 21 object(s):
[32, 56) 'sLine' (line 2462) <== Memory access at offset 42 is inside this variable
[96, 104) 'R__guard2471' (line 2471)
[128, 136) 'R__guard2488' (line 2488)
[160, 176) 'interpreterFlagsRAII' (line 2491)
[192, 240) 'result' (line 2511)
[272, 276) 'compRes' (line 2512)
[288, 312) 'mod_line' (line 2517)
[352, 376) 'aclicMode' (line 2518)
[416, 440) 'arguments' (line 2519)
[480, 504) 'io' (line 2520)
[544, 568) 'fname' (line 2521)
[608, 632) 'ref.tmp' (line 2547)
[672, 696) 'ref.tmp145' (line 2547)
[736, 768) 'code' (line 2555)
[800, 832) 'codeline' (line 2556)
[864, 1384) 'in' (line 2559)
[1520, 1552) 'ref.tmp176' (line 2562)
[1584, 1600) 'agg.tmp'
[1616, 1624) 'ref.tmp198' (line 2568)
[1648, 1664) 'agg.tmp207'
[1680, 1696) 'autoParseRaii' (line 2588)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
(longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-use-after-return src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:58:11 in cling::MetaLexer::Lex(cling::Token&)
Shadow bytes around the buggy address:
0x10007e757ab0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ac0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ad0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ae0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757af0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
=>0x10007e757b00: f5 f5 f5 f5 f5[f5]f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b10: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b20: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b30: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b40: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b50: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==529104==ABORTING
at src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:49
at src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:41
compRes=@0x7ffff3afd910: cling::Interpreter::kSuccess, result=0x7ffff3afd8c0, disableValuePrinting=false)
at src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:314
input_line=0x7ffff3afd829 "#define XYZ 21", compRes=@0x7ffff3afd910: cling::Interpreter::kSuccess,
result=0x7ffff3afd8c0) at src/core/metacling/src/TCling.cxx:2431
error=0x7fffd78cb0f4 <x>) at src/core/metacling/src/TCling.cxx:2591
sync=false, err=0x7fffd78cb0f4 <x>) at src/core/base/src/TApplication.cxx:1472
line=0x7fffd78c9000 "#define XYZ 21", error=0x7fffd78cb0f4 <x>)
at src/core/base/src/TROOT.cxx:2328
from asan/roottest/cling/other/fileClose_C.so
filename=0x6070000f0fd0 "asan/roottest/cling/other/fileClose_C.so", flag=257)
at /home/axel/build/llvm/llvm-project/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:6270
at src/interpreter/cling/lib/Utils/PlatformPosix.cpp:118
permanent=false, resolved=true)
at src/interpreter/cling/lib/Interpreter/DynamicLibraryManager.cpp:184
at src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1444
T=0x0) at src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1560
at src/interpreter/cling/lib/MetaProcessor/MetaSema.cpp:57
actionResult=@0x7ffff39532b0: cling::MetaSema::AR_Success)
Axel-Naumann
added a commit
that referenced
this pull request
May 11, 2021
Before, MetaParser might have pointed to a StringRef whose storage
was gone, see asan failure in roottest/cling/other/runfileClose.C below.
This was caused by recursive uses of MetaParser; see stack trace below:
the inner recursion returned, but as the same MetaParser object was used
by both frames, the objects cursor now pointed to freed memory.
Instead, create a MetaParser (and MetaLexer) object per input. That way,
their lifetime corresponds to the lifetime of their input.
=================================================================
==529104==ERROR: AddressSanitizer: stack-use-after-return on address 0x7ffff3afd82a at pc 0x7fffea18df6d bp 0x7fffffff8170 sp 0x7fffffff8168
READ of size 1 at 0x7ffff3afd82a thread T0
[Detaching after fork from child process 529183]
#0 0x7fffea18df6c in cling::MetaLexer::Lex(cling::Token&) src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:58:11
#1 0x7fffea190d7c in cling::MetaParser::lookAhead(unsigned int) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:89:15
#2 0x7fffea190bd5 in cling::MetaParser::consumeToken() src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:49:5
#3 0x7fffea191d4d in cling::MetaParser::isLCommand(cling::MetaSema::ActionResult&) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:147:9
#4 0x7fffea1914dd in cling::MetaParser::isCommand(cling::MetaSema::ActionResult&, cling::Value*) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:123:12
#5 0x7fffea191216 in cling::MetaParser::isMetaCommand(cling::MetaSema::ActionResult&, cling::Value*) src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:101:33
#6 0x7fffea14e5aa in cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:317:24
#7 0x7fffe99b67b7 in HandleInterpreterException(cling::MetaProcessor*, char const*, cling::Interpreter::CompilationResult&, cling::Value*) src/core/metacling/src/TCling.cxx:2431:29
#8 0x7fffe99bde30 in TCling::Load(char const*, bool) src/core/metacling/src/TCling.cxx:3454:10
#9 0x7ffff7865f11 in TSystem::Load(char const*, char const*, bool) src/core/base/src/TSystem.cxx:1941:27
#10 0x7ffff7b8a0e3 in TUnixSystem::Load(char const*, char const*, bool) src/core/unix/src/TUnixSystem.cxx:2789:20
#11 0x7fffd78dd08b (<unknown module>)
#12 0x7fffe9f8a5d9 in cling::IncrementalExecutor::executeWrapper(llvm::StringRef, cling::Value*) const src/interpreter/cling/lib/Interpreter/IncrementalExecutor.cpp:376:3
#13 0x7fffe9d73dc2 in cling::Interpreter::RunFunction(clang::FunctionDecl const*, cling::Value*) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1141:20
#14 0x7fffe9d6e317 in cling::Interpreter::EvaluateInternal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::CompilationOptions, cling::Value*, cling::Transaction**, unsigned long) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1391:29
#15 0x7fffe9d6c1fe in cling::Interpreter::process(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::Value*, cling::Transaction**, bool) src/interpreter/cling/lib/Interpreter/Interpreter.cpp:819:9
#16 0x7fffea151826 in cling::MetaProcessor::readInputFromFile(llvm::StringRef, cling::Value*, unsigned long, bool) src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:507:22
#17 0x7fffe99b585b in TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:2570:39
#18 0x7fffe99bbfee in TCling::ProcessLineSynch(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:3496:17
#19 0x7ffff77203d3 in TApplication::ExecuteFile(char const*, int*, bool) src/core/base/src/TApplication.cxx:1608:30
#20 0x7ffff771ebdf in TApplication::ProcessFile(char const*, int*, bool) src/core/base/src/TApplication.cxx:1480:11
#21 0x7ffff771e385 in TApplication::ProcessLine(char const*, bool, int*) src/core/base/src/TApplication.cxx:1453:14
#22 0x7ffff7f8157a in TRint::ProcessLineNr(char const*, char const*, int*) src/core/rint/src/TRint.cxx:766:11
#23 0x7ffff7f802f0 in TRint::Run(bool) src/core/rint/src/TRint.cxx:424:22
#24 0x4ff96d in main src/main/src/rmain.cxx:30:12
#25 0x7ffff6e040b2 in __libc_start_main /build/glibc-YbNSs7/glibc-2.31/csu/../csu/libc-start.c:308:16
#26 0x41f35d in _start (asan/bin/root.exe+0x41f35d)
Address 0x7ffff3afd82a is located in stack of thread T0 at offset 42 in frame
#0 0x7fffe99b3d8f in TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) src/core/metacling/src/TCling.cxx:2456
This frame has 21 object(s):
[32, 56) 'sLine' (line 2462) <== Memory access at offset 42 is inside this variable
[96, 104) 'R__guard2471' (line 2471)
[128, 136) 'R__guard2488' (line 2488)
[160, 176) 'interpreterFlagsRAII' (line 2491)
[192, 240) 'result' (line 2511)
[272, 276) 'compRes' (line 2512)
[288, 312) 'mod_line' (line 2517)
[352, 376) 'aclicMode' (line 2518)
[416, 440) 'arguments' (line 2519)
[480, 504) 'io' (line 2520)
[544, 568) 'fname' (line 2521)
[608, 632) 'ref.tmp' (line 2547)
[672, 696) 'ref.tmp145' (line 2547)
[736, 768) 'code' (line 2555)
[800, 832) 'codeline' (line 2556)
[864, 1384) 'in' (line 2559)
[1520, 1552) 'ref.tmp176' (line 2562)
[1584, 1600) 'agg.tmp'
[1616, 1624) 'ref.tmp198' (line 2568)
[1648, 1664) 'agg.tmp207'
[1680, 1696) 'autoParseRaii' (line 2588)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
(longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-use-after-return src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:58:11 in cling::MetaLexer::Lex(cling::Token&)
Shadow bytes around the buggy address:
0x10007e757ab0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ac0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ad0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757ae0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757af0: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
=>0x10007e757b00: f5 f5 f5 f5 f5[f5]f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b10: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b20: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b30: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b40: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
0x10007e757b50: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==529104==ABORTING
at src/interpreter/cling/lib/MetaProcessor/MetaLexer.cpp:49
at src/interpreter/cling/lib/MetaProcessor/MetaParser.cpp:41
compRes=@0x7ffff3afd910: cling::Interpreter::kSuccess, result=0x7ffff3afd8c0, disableValuePrinting=false)
at src/interpreter/cling/lib/MetaProcessor/MetaProcessor.cpp:314
input_line=0x7ffff3afd829 "#define XYZ 21", compRes=@0x7ffff3afd910: cling::Interpreter::kSuccess,
result=0x7ffff3afd8c0) at src/core/metacling/src/TCling.cxx:2431
error=0x7fffd78cb0f4 <x>) at src/core/metacling/src/TCling.cxx:2591
sync=false, err=0x7fffd78cb0f4 <x>) at src/core/base/src/TApplication.cxx:1472
line=0x7fffd78c9000 "#define XYZ 21", error=0x7fffd78cb0f4 <x>)
at src/core/base/src/TROOT.cxx:2328
from asan/roottest/cling/other/fileClose_C.so
filename=0x6070000f0fd0 "asan/roottest/cling/other/fileClose_C.so", flag=257)
at /home/axel/build/llvm/llvm-project/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:6270
at src/interpreter/cling/lib/Utils/PlatformPosix.cpp:118
permanent=false, resolved=true)
at src/interpreter/cling/lib/Interpreter/DynamicLibraryManager.cpp:184
at src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1444
T=0x0) at src/interpreter/cling/lib/Interpreter/Interpreter.cpp:1560
at src/interpreter/cling/lib/MetaProcessor/MetaSema.cpp:57
actionResult=@0x7ffff39532b0: cling::MetaSema::AR_Success)
Axel-Naumann
pushed a commit
that referenced
this pull request
Nov 7, 2022
In the logging for out-of-range values in `RooTreeDataStore::loadValues`, there was `static_cast<RooAbsReal*>(arg)->getVal()` called also for categories, which is invalid. This led to garbage numbers as here in the tutorial outputs: https://root.cern/doc/v624/rf401__importttreethx_8C.html (see the lines with `Skipping event #2 because i cannot accommodate the value`)
Axel-Naumann
pushed a commit
that referenced
this pull request
Nov 7, 2022
In the logging for out-of-range values in `RooTreeDataStore::loadValues`, there was `static_cast<RooAbsReal*>(arg)->getVal()` called also for categories, which is invalid. This led to garbage numbers as here in the tutorial outputs: https://root.cern/doc/v624/rf401__importttreethx_8C.html (see the lines with `Skipping event #2 because i cannot accommodate the value`)
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Fix so that basic TTree tests produce the same output in ROOT 6 as it did in v5-34-00-patches .