Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Add possibility to compile applications with address sanitizer. #2123 #2

Merged
merged 2 commits into from
Mar 17, 2022
Merged

Add possibility to compile applications with address sanitizer. #2123 #2

merged 2 commits into from
Mar 17, 2022

Conversation

oleksandrivantsiv
Copy link
Owner

Add SIGTERM handling as a trigger to run a memory leak checker.

What I did
To add a possibility to compile SONiC applications with address sanitizer (ASAN).

ASAN is a memory error detector for C/C++. It finds:

  • Use after free (dangling pointer dereference)
  • Heap buffer overflow
  • Stack buffer overflow
  • Global buffer overflow
  • Use after return
  • Use after the scope
  • Initialization order bugs
  • Memory leaks

Add SIGTERM handling as a trigger to run a memory leak checker.

Why I did it
To add a possibility to detect memory errors in applications.

How I verified it
Compile SWSS with --enable-asan option. Install applications to DUT. Run tests that trigger different kinds of memory usage inside of applications. Stop applications with SIGTERM signal to trigger ASAN report generation. Reports will be placed in /var/log/asan/ directory.

Details if related

@oleksandrivantsiv oleksandrivantsiv changed the title Asan v2 Add possibility to compile applications with address sanitizer. #2123 Mar 15, 2022
@oleksandrivantsiv oleksandrivantsiv merged commit 380fb43 into master Mar 17, 2022
oleksandrivantsiv pushed a commit that referenced this pull request Sep 5, 2022
@Yakiv-Huryk
[asan] suppress the static variable leaks (sonic-net#2354)
979d871 
Currently, ASAN sometimes reports the BufferOrch::m_buffer_type_maps and QosOrch::m_qos_maps as leaked. However, their lifetime is the lifetime of a process so they are not really 'leaked'.
This also adds a simple way to add more suppressions later if required.

Example of ASAN report:

Direct leak of 48 byte(s) in 1 object(s) allocated from:
    #0 0x7f96aa952d30 in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.5+0xead30)
    #1 0x55ca1da9f789 in __static_initialization_and_destruction_0 /__w/2/s/orchagent/bufferorch.cpp:39
    #2 0x55ca1daa02af in _GLOBAL__sub_I_bufferorch.cpp /__w/2/s/orchagent/bufferorch.cpp:1321
    #3 0x55ca1e2a9cd4  (/usr/bin/orchagent+0xe89cd4)

Direct leak of 48 byte(s) in 1 object(s) allocated from:
    #0 0x7f96aa952d30 in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.5+0xead30)
    #1 0x55ca1da6d2da in __static_initialization_and_destruction_0 /__w/2/s/orchagent/qosorch.cpp:80
    #2 0x55ca1da6ecf2 in _GLOBAL__sub_I_qosorch.cpp /__w/2/s/orchagent/qosorch.cpp:2000
    #3 0x55ca1e2a9cd4  (/usr/bin/orchagent+0xe89cd4)

- What I did
Added an lsan suppression config with static variable leak suppression

- Why I did it
To suppress ASAN false positives

- How I verified it
Run a test that produces the static variable leaks report and checked that report has these leaks suppressed.

Signed-off-by: Yakiv Huryk <[email protected]>
oleksandrivantsiv pushed a commit that referenced this pull request Sep 19, 2023
@vivekrnv
[ASAN] Fix Indirect Mem Leaks in Orchagent (sonic-net#2869)
23cb2e5 
**What I did**

Fix the Mem Leak by moving the raw pointers in type_maps to use smart pointers

**Why I did it**

```
Indirect leak of 83776 byte(s) in 476 object(s) allocated from:
    #0 0x7f0a2a414647 in operator new(unsigned long) ../../../../src/libsanitizer/asan/asan_new_delete.cpp:99
    #1 0x5555590cc923 in __gnu_cxx::new_allocator, std::allocator > const, referenced_object> > >::allocate(unsigned long, void const*) /usr/include/c++/10/ext/new_allocator.h:115
    #2 0x5555590cc923 in std::allocator_traits, std::allocator > const, referenced_object> > > >::allocate(std::allocator, std::allocator > const, referenced_object> > >&, unsigned long) /usr/include/c++/10/bits/alloc_traits.h:460
    #3 0x5555590cc923 in std::_Rb_tree, std::allocator >, std::pair, std::allocator > const, referenced_object>, std::_Select1st, std::allocator > const, referenced_object> >, std::less, std::allocator > >, std::allocator, std::allocator > const, referenced_object> > >::_M_get_node() /usr/include/c++/10/bits/stl_tree.h:584
    #4 0x5555590cc923 in std::_Rb_tree_node, std::allocator > const, referenced_object> >* std::_Rb_tree, std::allocator >, std::pair, std::allocator > const, referenced_object>, std::_Select1st, std::allocator > const, referenced_object> >, std::less, std::allocator > >, std::allocator, std::allocator > const, referenced_object> > >::_M_create_node, std::allocator > const&>, std::tuple<> >(std::piecewise_construct_t const&, std::tuple, std::allocator > const&>&&, std::tuple<>&&) /usr/include/c++/10/bits/stl_tree.h:634
    #5 0x5555590cc923 in std::_Rb_tree_iterator, std::allocator > const, referenced_object> > std::_Rb_tree, std::allocator >, std::pair, std::allocator > const, referenced_object>, std::_Select1st, std::allocator > const, referenced_object> >, std::less, std::allocator > >, std::allocator, std::allocator > const, referenced_object> > >::_M_emplace_hint_unique, std::allocator > const&>, std::tuple<> >(std::_Rb_tree_const_iterator, std::allocator > const, referenced_object> >, std::piecewise_construct_t const&, std::tuple, std::allocator > const&>&&, std::tuple<>&&) /usr/include/c++/10/bits/stl_tree.h:2461
    #6 0x5555590e8757 in std::map, std::allocator >, referenced_object, std::less, std::allocator > >, std::allocator, std::allocator > const, referenced_object> > >::operator[](std::__cxx11::basic_string, std::allocator > const&) /usr/include/c++/10/bits/stl_map.h:501
    #7 0x5555590d48b0 in Orch::setObjectReference(std::map, std::allocator >, std::map, std::allocator >, referenced_object, std::less, std::allocator > >, std::allocator, std::allocator > const, referenced_object> > >*, std::less, std::allocator > >, std::allocator, std::allocator > const, std::map, std::allocator >, referenced_object, std::less, std::allocator > >, std::allocator, std::allocator > const, referenced_object> > >*> > >&, std::__cxx11::basic_string, std::allocator > const&, std::__cxx11::basic_string, std::allocator > const&, std::__cxx11::basic_string, std::allocator > const&, std::__cxx11::basic_string, std::allocator > const&) orchagent/orch.cpp:450
    sonic-net#8 0x5555594ff66b in QosOrch::handleQueueTable(Consumer&, std::tuple, std::allocator >, std::__cxx11::basic_string, std::allocator >, std::vector, std::allocator >, std::__cxx11::basic_string, std::allocator > >, std::allocator, std::allocator >, std::__cxx11::basic_string, std::allocator > > > > >&) orchagent/qosorch.cpp:1763
    sonic-net#9 0x5555594edbd6 in QosOrch::doTask(Consumer&) orchagent/qosorch.cpp:2179
    sonic-net#10 0x5555590c8743 in Consumer::drain() orchagent/orch.cpp:241
    sonic-net#11 0x5555590c8743 in Consumer::drain() orchagent/orch.cpp:238
    sonic-net#12 0x5555590c8743 in Consumer::execute() orchagent/orch.cpp:235
    sonic-net#13 0x555559090dad in OrchDaemon::start() orchagent/orchdaemon.cpp:755
    sonic-net#14 0x555558e9be25 in main orchagent/main.cpp:766
    sonic-net#15 0x7f0a299b6d09 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x23d09)
```
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers
No reviews
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging this pull request may close these issues.
1 participant
@oleksandrivantsiv