[Bug general/4107] New: TestRunner is leaking file descriptors

[Bug general/4107] New: TestRunner is leaking file descriptors

[mcvet at redhat dot com]

$ ./TestRunner -r 100 frysk.rt.TestStepping

Running testASMStepping(frysk.rt.TestStepping) ...
execvp: Too many open files
ERROR
  java.lang.NullPointerException

When cntl-Z'ing TestRunner during its execution, and taking a look through the 
output of lsof, there are thousands of open files belonging to TestRunner which 
hasn't properly quit after the test failure.

-- 
           Summary: TestRunner is leaking file descriptors
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: mcvet at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=4107

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[Bug general/4107] TestRunner is leaking file descriptors

[rmoseley at redhat dot com]

------- Additional Comments From rmoseley at redhat dot com  2007-02-27 22:26 -------
The limit on my FC5/i686 box for the file descriptors for TestRunner is about
1042 and then it aborts.  When I run the command Mike shows I see a couple of
processes running: TestRunner and funit-rt-asmstepper.  Running the "lsof"
command while running those, funit-rt-asmstepper appears to never open any
files.  If I run the "lsof" command on TestRunner I see the file descriptors run
up pretty quickly until the test aborts when it reaches ~1042 fd's.

Now, the weird thing is, when the test aborts, TestRunner remains in the cpu
queue but it now has a *totally* PID.  Doing a "lsof" on that shows about 1042
fd's open.  Looking at /proc/TESTRUNNERPID/fd and doing a list I see lines and
lines of this:

lr-x------ 1 rmoseley rmoseley 64 Feb 27 16:06 110 ->
/home/rmoseley/frysk-cvs3/build/frysk-core/frysk/pkglibdir/funit-rt-asmstepper


It seems nearly all the fd's are pointing to the funit-rt-asmstepper executable.
 Why would the TestRunner be repeatedly opening a fd pointing to the executable?

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=4107

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[Bug general/4107] TestRunner is leaking file descriptors

[rmoseley at redhat dot com]

------- Additional Comments From rmoseley at redhat dot com  2007-02-28 14:13 -------
In the previous comment I meant to say "*totally different PID" instead of
"*totally PID".  That is, the TestRunner PID had changed from its original PID
when it was running funit-rt-asmstepper.  But, the new TestRunner inherited the
fd's of the original TestRunner.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=4107

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