[llvm-bugs] [Bug 49433] New: concurrent_events tests: wrong breakpoint hit with multiple concurrent breakpoints

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=49433

            Bug ID: 49433
           Summary: concurrent_events tests: wrong breakpoint hit with
                    multiple concurrent breakpoints
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: mgorny at gentoo.org
                CC: jdevlieghere at apple.com, llvm-bugs at lists.llvm.org

All of the tests involving multiple breakpoints suffer from randomly
establishing the wrong breakpoint hit count, e.g.:

FAIL: LLDB (/home/mgorny/llvm-project/build.arm64/bin/clang-aarch64) :: test
(TestConcurrentTwoBreakpointThreads.ConcurrentTwoBreakpointThreads)
======================================================================
FAIL: test (TestConcurrentTwoBreakpointThreads.ConcurrentTwoBreakpointThreads)
   Test two threads that trigger a breakpoint.
----------------------------------------------------------------------
Traceback (most recent call last):
  File
"/home/mgorny/llvm-project/lldb/packages/Python/lldbsuite/test/decorators.py",
line 149, in wrapper
    return func(*args, **kwargs)
  File
"/home/mgorny/llvm-project/lldb/test/API/functionalities/thread/concurrent_events/TestConcurrentTwoBreakpointThreads.py",
line 19, in test
    self.do_thread_actions(num_breakpoint_threads=2)
  File
"/home/mgorny/llvm-project/lldb/packages/Python/lldbsuite/test/concurrent_base.py",
line 266, in do_thread_actions
    breakpoint_hit_count))
AssertionError: 2 != 3 : Expected 2 breakpoint hits, but got 3
Config=aarch64-/home/mgorny/llvm-project/build.arm64/bin/clang


It seems to be a problem in lldb/lldb-server logic somewhere that needs further
debugging.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20210304/2ba94d8e/attachment.html>