[Bug dyninst/15619] New: on rawhide ia32, simple scripts sometimes hang

["dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15619

            Bug ID: 15619
           Summary: on rawhide ia32, simple scripts sometimes hang
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: dyninst
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com

As part of bug #14791, I added dyninst support to the following testcases:

 testsuite/systemtap.base/strftime.exp
 testsuite/systemtap.printf/end1.exp
 testsuite/systemtap.printf/mixed_out.exp
 testsuite/systemtap.printf/out1.exp
 testsuite/systemtap.printf/out2.exp
 testsuite/systemtap.printf/out3.exp

These tests pass on rawhide x86_64 (3.10.0-0.rc5.git0.1.fc20.x86_64). However,
on rawhide ia32 (3.10.0-0.rc5.git0.1.fc20.i686.PAE), two of those tests hang:
mixed_out.exp and out3.exp. To get the testsuite to continue, you have to
manually kill 'stap'. The tests pass, which I believe means the output file was
written correctly. I'd guess the problem is the 'exit()' function isn't working
correctly (perhaps related to bug #14655 or bug #15029).

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