[Bug general/4926] New: fstack aborts with ArrayOutOfBounds when debugging fhpd core file

[Bug general/4926] New: fstack aborts with ArrayOutOfBounds when debugging fhpd core file

[rmoseley at redhat dot com]

This is an outfall of bz #4920 where I try to debug bash and examine a variable
in the (main).  Once the core file is dumped I try to look at the core file with
fstack and it aborts like this:

./build/frysk-core/frysk/bindir/fstack -a core.18293
Task #18293
#0 0x00110402 in __kernel_vsyscall () from 
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
   at frysk.debuginfo.DebugInfoFrame.getSubprogram(DebugInfoFrame.java:81)
   at
frysk.debuginfo.DebugInfoStackFactory.printStackTrace(DebugInfoStackFactory.java:143)
   at
frysk.debuginfo.DebugInfoStackFactory.printTaskStackTrace(DebugInfoStackFactory.java:120)
   at frysk.util.StacktraceAction.printTasks(StacktraceAction.java:158)
   at
frysk.util.StacktraceAction.allExistingTasksCompleted(StacktraceAction.java:205)
   at frysk.proc.ProcCoreAction.<init>(ProcCoreAction.java:60)
   at frysk.bindir.fstack.stackCore(fstack.java:145)
   at frysk.bindir.fstack.access$1(fstack.java:140)
   at frysk.bindir.fstack$2.parseCores(fstack.java:165)
   at frysk.util.CommandlineParser.doParse(CommandlineParser.java:169)
   at frysk.util.CommandlineParser.parse(CommandlineParser.java:109)
   at frysk.bindir.fstack.main(fstack.java:257)

-- 
           Summary: fstack aborts with ArrayOutOfBounds when debugging fhpd
                    core file
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: rmoseley at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=4926

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug general/4926] fstack aborts with ArrayOutOfBounds when debugging fhpd core file

[swagiaal at redhat dot com]

------- Additional Comments From swagiaal at redhat dot com  2007-08-15 16:14 -------
I cant reproduce this but i know that the problem exists.
Could you attach core file please.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED


http://sourceware.org/bugzilla/show_bug.cgi?id=4926

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug general/4926] fstack aborts with ArrayOutOfBounds when debugging fhpd core file

[pmuldoon at redhat dot com]

------- Additional Comments From pmuldoon at redhat dot com  2007-08-15 16:38 -------
Attaching the corefile won't work, without corresponding exe and solibs that
match it. This might be an issue of automatic exe locaiton.

Can you attach the output of:

eu-readelf -n core.18293


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=4926

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug general/4926] fstack aborts with ArrayOutOfBounds when debugging fhpd core file

[pmuldoon at redhat dot com]

------- Additional Comments From pmuldoon at redhat dot com  2007-08-15 16:42 -------
Conextually however the should be "available scopes" safety check in this code:

        DwarfDie[] scopes = bias.die.getScopes(getAdjustedAddress());
       
        for (int i = 0; i < scopes.length; i++) { 
          if (scopes[i].getTag() == DwTagEncodings.DW_TAG_subprogram_) {
            subprogram = new Subprogram(scopes[i], debugInfo);
            break;
          }


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=4926

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.