[lldb-dev] [Bug 37577] New: Memory Region command causes segfault

via lldb-dev lldb-dev at lists.llvm.org
Thu May 24 04:40:17 PDT 2018


            Bug ID: 37577
           Summary: Memory Region command causes segfault
           Product: lldb
           Version: unspecified
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: maxshavrick at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 20336
  --> https://bugs.llvm.org/attachment.cgi?id=20336&action=edit
Screenshot of it

(* This is lldb lldb-902.0.79.2\n Swift-4.1 *)

When using `memory region` command twice, there is a segmentation fault. Steps
as follows:

$lldb ./test_program
(lldb) process launch --stop-at-entry
(lldb) ni
(lldb) ni
(lldb) register read rsp
     rsp = 0x00007ffeefbff5c8
(lldb) memory region 0x00007ffeefbff5c8
(lldb) memory region

Note the last memory region line I do not pass an address to. Should show the
help screen again. 

Thank you

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