[Bug breakpoints/14054] New: stale bp_location->section

["jan.kratochvil at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=14054

             Bug #: 14054
           Summary: stale bp_location->section
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: breakpoints
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jan.kratochvil@redhat.com
    Classification: Unclassified
            Target: x86_64-unknown-linux-gnu


./gdb -ex r --args ./gdb -ex 'set confirm no' -ex 'b main' -ex 'file' -ex 'info
break' ./gdb

Num     Type           Disp Enb Address            What
Program received signal SIGSEGV, Segmentation fault.
0x0000000000759a5c in lookup_minimal_symbol_by_pc_section_1 (pc=4753415,
section=0x215a570, want_trampoline=0) at minsyms.c:514
514          if (objfile->minimal_symbol_count > 0)

Invalid read of size 8 
   at: lookup_minimal_symbol_by_pc_section_1 (minsyms.c:504)
   by: lookup_minimal_symbol_by_pc_section (minsyms.c:712)
   by: find_pc_sect_symtab (symtab.c:1986)
   by: blockvector_for_pc_sect (block.c:122)
   by: block_for_pc_sect (block.c:230)
   by: find_pc_sect_function (blockframe.c:140)
   by: print_breakpoint_location (breakpoint.c:5355)
   by: print_one_breakpoint_location (breakpoint.c:5601)
   by: print_one_breakpoint (breakpoint.c:5809)
   by: breakpoint_1 (breakpoint.c:6040)
   by: breakpoints_info (breakpoint.c:6096)
   by: do_cfunc (cli-decode.c:67)
   by: cmd_func (cli-decode.c:1810)
   by: execute_command (top.c:483)
   by: catch_command_errors (exceptions.c:573)
   by: captured_main (main.c:977)
   by: catch_errors (exceptions.c:546)
   by: gdb_main (main.c:1010)
   by: main (gdb.c:34)
 Address 0xe0df528 is 392 bytes inside a block of size 4,064 free'd
   at: free (vg_replace_malloc.c:427)
   by: xfree (common-utils.c:107)
   by: obstack_free (obstack.c:367)
   by: free_objfile (objfiles.c:610)
   by: free_all_objfiles (objfiles.c:644)
   by: symbol_file_clear (symfile.c:1260)
   by: symbol_file_command (symfile.c:1622)
   by: file_command (exec.c:365)
   by: do_cfunc (cli-decode.c:67)
   by: cmd_func (cli-decode.c:1810)
   by: execute_command (top.c:483)
   by: catch_command_errors (exceptions.c:573)
   by: captured_main (main.c:977)
   by: catch_errors (exceptions.c:546)
   by: gdb_main (main.c:1010)
   by: main (gdb.c:34)

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