[lldb-dev] [Bug 16714] New: LLDB on Linux sometimes crashes when setting a watchpoint in a multithreaded program

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16714

            Bug ID: 16714
           Summary: LLDB on Linux sometimes crashes when setting a
                    watchpoint in a multithreaded program
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at cs.uiuc.edu
          Reporter: daniel.malea at intel.com
    Classification: Unclassified

This failure happens occasionally, as on the latest buildbot run:

(from
http://lab.llvm.org:8011/builders/lldb-x86_64-linux/builds/5755/steps/test%20lldb/logs/stdio):

python: RegisterContext_x86_64.cpp:1227: virtual bool
RegisterContext_x86_64::IsWatchpointVacant(uint32_t): Assertion `false &&
"Could not initialize watchpoint registers"' failed.

The failure happened in one of the watchpoint tests in TestConcurrentEvents.py,
likely because a thread has not stopped correctly or has disappeared for some
reason. To reproduce, use:

python dotest.py --executable <path-to-lldb> -p TestConcurrentEvents -#100

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