http://llvm.org/bugs/show_bug.cgi?id=11327
Bug #: 11327
Summary: clang crash and subsequent hang
Product: new-bugs
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 7586
--> http://llvm.org/bugs/attachment.cgi?id=7586
failure inducing input
On x86-64 on Ubuntu 10.04.3, I'm getting Clang trying to die due to some memory
safety error but actually hanging apparently indefinitely, using zero CPU.
So it looks like there are probably two problems here.
[regehr@node2 ~]$ clang -v
clang version 3.1 (trunk 143910)
Target: x86_64-unknown-linux-gnu
Thread model: posix
[regehr@node2 ~]$ clang -O0 small.c
*** glibc detected ***
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang:
free(): invalid pointer: 0x00007fff0cd674cf ***
======= Backtrace: =========
/lib/libc.so.6(+0x775b6)[0x7f45bb83e5b6]
/lib/libc.so.6(cfree+0x73)[0x7f45bb844e83]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang7APValue10MakeUninitEv+0xbc)[0xf137ec]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang[0xfa0b45]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZNK5clang4Expr16EvaluateAsRValueERNS0_10EvalResultERKNS_10ASTContextE+0x215)[0xf9f845]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZNK5clang4Expr13isEvaluatableERKNS_10ASTContextE+0x2f)[0xfa13cf]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZNK5clang4Expr21isConstantInitializerERNS_10ASTContextEb+0x3a7)[0xf96067]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang4Sema27CheckForConstantInitializerEPNS_4ExprENS_8QualTypeE+0x1b)[0xa2e8cb]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang4Sema20AddInitializerToDeclEPNS_4DeclEPNS_4ExprEbb+0x174b)[0xa3020b]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang6Parser44ParseDeclarationAfterDeclaratorAndAttributesERNS_10DeclaratorERKNS0_18ParsedTemplateInfoE+0x93d)[0x95922d]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang6Parser14ParseDeclGroupERNS0_15ParsingDeclSpecEjbPNS_14SourceLocationEPNS0_12ForRangeInitE+0x6d5)[0x957dc5]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang6Parser36ParseDeclarationOrFunctionDefinitionERNS0_15ParsingDeclSpecENS_15AccessSpecifierE+0x35f)[0x9490ef]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang6Parser36ParseDeclarationOrFunctionDefinitionERNS_16ParsedAttributesENS_15AccessSpecifierE+0x189)[0x9492e9]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang6Parser24ParseExternalDeclarationERNS0_25ParsedAttributesWithRangeEPNS0_15ParsingDeclSpecE+0xdac)[0x9482cc]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang6Parser17ParseTopLevelDeclERNS_9OpaquePtrINS_12DeclGroupRefEEE+0x100)[0x9474f0]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang8ParseASTERNS_4SemaEb+0x13e)[0x9288fe]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang13CodeGenAction13ExecuteActionEv+0x347)[0x803527]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang16CompilerInstance13ExecuteActionERNS_14FrontendActionE+0x3d7)[0x6cf597]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_ZN5clang25ExecuteCompilerInvocationEPNS_16CompilerInstanceE+0xb1e)[0x6b738e]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(_Z8cc1_mainPPKcS1_S0_Pv+0x1651)[0x6adf71]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang(main+0x312)[0x6b3462]
/lib/libc.so.6(__libc_start_main+0xfd)[0x7f45bb7e5c4d]
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang[0x6ac859]
======= Memory map: ========
00400000-020a9000 r-xp 00000000 08:04 2100181
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang
022a8000-022ec000 r--p 01ca8000 08:04 2100181
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang
022ec000-0242f000 rw-p 01cec000 08:04 2100181
/mnt/local/randomtest/compiler-install/llvm-gcc-r143910-install/bin/clang
0242f000-0243d000 rw-p 00000000 00:00 0
02f2e000-03015000 rw-p 00000000 00:00 0 [heap]
7f45b4000000-7f45b4021000 rw-p 00000000 00:00 0
7f45b4021000-7f45b8000000 ---p 00000000 00:00 0
7f45bb7c7000-7f45bb941000 r-xp 00000000 08:02 34255
/lib/libc-2.11.1.so
7f45bb941000-7f45bbb40000 ---p 0017a000 08:02 34255
/lib/libc-2.11.1.so
7f45bbb40000-7f45bbb44000 r--p 00179000 08:02 34255
/lib/libc-2.11.1.so
7f45bbb44000-7f45bbb45000 rw-p 0017d000 08:02 34255
/lib/libc-2.11.1.so
7f45bbb45000-7f45bbb4a000 rw-p 00000000 00:00 0
7f45bbb4a000-7f45bbb60000 r-xp 00000000 08:02 32839
/lib/libgcc_s.so.1
7f45bbb60000-7f45bbd5f000 ---p 00016000 08:02 32839
/lib/libgcc_s.so.1
7f45bbd5f000-7f45bbd60000 r--p 00015000 08:02 32839
/lib/libgcc_s.so.1
7f45bbd60000-7f45bbd61000 rw-p 00016000 08:02 32839
/lib/libgcc_s.so.1
7f45bbd61000-7f45bbe57000 r-xp 00000000 08:02 91705
/usr/lib/libstdc++.so.6.0.13
7f45bbe57000-7f45bc057000 ---p 000f6000 08:02 91705
/usr/lib/libstdc++.so.6.0.13
7f45bc057000-7f45bc05e000 r--p 000f6000 08:02 91705
/usr/lib/libstdc++.so.6.0.13
7f45bc05e000-7f45bc060000 rw-p 000fd000 08:02 91705
/usr/lib/libstdc++.so.6.0.13
7f45bc060000-7f45bc075000 rw-p 00000000 00:00 0
7f45bc075000-7f45bc0f7000 r-xp 00000000 08:02 34259
/lib/libm-2.11.1.so
7f45bc0f7000-7f45bc2f6000 ---p 00082000 08:02 34259
/lib/libm-2.11.1.so
7f45bc2f6000-7f45bc2f7000 r--p 00081000 08:02 34259
/lib/libm-2.11.1.so
7f45bc2f7000-7f45bc2f8000 rw-p 00082000 08:02 34259
/lib/libm-2.11.1.so
7f45bc2f8000-7f45bc2fa000 r-xp 00000000 08:02 34258
/lib/libdl-2.11.1.so
7f45bc2fa000-7f45bc4fa000 ---p 00002000 08:02 34258
/lib/libdl-2.11.1.so
7f45bc4fa000-7f45bc4fb000 r--p 00002000 08:02 34258
/lib/libdl-2.11.1.so
7f45bc4fb000-7f45bc4fc000 rw-p 00003000 08:02 34258
/lib/libdl-2.11.1.so
7f45bc4fc000-7f45bc514000 r-xp 00000000 08:02 34269
/lib/libpthread-2.11.1.so
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