asan reports error(AddressSanitizer: SEGV on unknown address), but the code works without asan.

[Lunewcome]

As title says. How can I do then ?
Thanks very much!

detail :

ASAN:SIGSEGV

==1613==ERROR: AddressSanitizer: SEGV on unknown address 0x0002205f835e (pc 0x00000052a10e bp 0x7fff5ee560d0 sp 0x7fff5ee560b0 T0)
#0 0x52a10d in std::cxx11::list<std::pair<mstd::basic_string<char, std::char_traits, ads::allocator >, unsigned long>, ads::allocator<std::pair<mstd::basic_string<char, std::char_traits, ads::allocator >, unsigned long> > >::begin() const /home/xllu/g++/include/c++/5.4.0/bits/stl_list.h:841
#1 0x4b9ee3 in Server::load_user_agent_keywords(Repository const) ../../server/Server.cpp:
#2 0x4ab6bd in Server::switch_repository(Repository const, int, int) ../../server/Server.cpp:

AddressSanitizer can not provide additional info.

[yugr]

@Lunewcome please post a repro.

[Lunewcome]

@yugr I'have posted it. Help me pls. Thank you very much!

[yugr]

From the backtrace it seems that you are accessing an uninitialized pointer somewhere in std::list. Is that the case? I suggest you debug the problem locally and check why it's uninitialized.

If not, we'll probably need more info: version of compiler, full backtrace and preferably an example code which can be used to repro error on other machine.

[Lunewcome]

Turns out it was cause by a conflict between asan shadow memory and our code. We changed asan shadow memory, and it worked now.
Thanks!

[yichuan1118]

@Lunewcome could you share a little about how did you solved this issue? Thank you!