Error on template simplification

[Akdeniz]

Hi im getting below exception when executing this command.

cppcheck -j 16 --exception-handling --report-progress --xml --xml-version=2 -I src --std=c++11 --suppress=duplicateBreak src/dm/compression/impl/re_pair.cpp 2> cppcheck.xml

Checking src/dm/compression/impl/re_pair.cpp...
Internal error: cppcheck received signal SIGSEGV, Segmentation fault - SEGV_MAPERR (at 0x0xffffffffffffffe8).
Callstack:
#0  0x000000559d9e in TemplateSimplifier::simplifyTemplateInstantiations(TokenList&, ErrorLogger*, Settings const*, Token const*, std::list<Token*, std::allocator<Token*> >&, std::set<std::string, std::less<std::string>, std::allocator<std::string> >&)
#1  0x00000055c59c in TemplateSimplifier::simplifyTemplates(TokenList&, ErrorLogger*, Settings const*, bool&)
#2  0x000000582607 in Tokenizer::simplifyTemplates()
#3  0x00000059da7b in Tokenizer::simplifyTokenList1(char const*)
#4  0x00000059df1e in Tokenizer::tokenize(std::istream&, char const*, std::string const&, bool)
#5  0x00000050810e in CppCheck::checkFile(std::string const&, char const*)
#6  0x00000050c458 in CppCheck::processFile(std::string const&, std::string const&)
#7  0x00000050d8d0 in CppCheck::check(std::string const&)
#8  0x000000443106 in ThreadExecutor::check()
#9  0x00000043d4f0 in CppCheckExecutor::check_internal(CppCheck&, int, char const* const*)
#10 0x00000043e8cd in CppCheckExecutor::check_wrapper(CppCheck&, int, char const* const*)
#11 0x00000043e995 in CppCheckExecutor::check(int, char const* const*)
#12 0x000000433833 in cppcheck(main+0x23)
#13 0x7f22142f876d in /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)
#14 0x000000434bc9 in cppcheck()

Please report this to the cppcheck developers!

I'm using executing this command on Ubuntu Ubuntu 12.04 LTS 64bit with cppcheck 1.66. But I can produce the same error with 1.68 version.

In windows, everything works as expected.

Any suggestion about this?

Thanks,
Ali

[Alexander Mai]

In first place you might report the bug at http://trac.cppcheck.net/
A short example to reproduce the error will help on analysis.
Does it also crash without the -j16 argument?

[Akdeniz]

Ok, I will report a bug with simplified example.

And when I remove -j16 argument, I work as expected.
The main difference with linux and windows versions is the way of handling threads, right? (afaik for linux, it does fork a process to provide parallelism).

Can this be related to threading?

[Alexander Mai]

According to your results it sounds likely. OTOH there are some known issues about the template handling, so maybe that can't be ruled out.
Did you submit your example already?