[Bug runtime/17270] New: uprobes_onthefly.exp causing hang on ppc64

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17270

            Bug ID: 17270
           Summary: uprobes_onthefly.exp causing hang on ppc64
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com

While testing some of the new on-the-fly code, I ran the uprobes_onthefly.exp
testcase on RHEL7 ppc64 (3.10.0-131.el7.ppc64). The system hung.

Here's what was on the console:
====
[  190.522633] stap_3d75d6d062d98c196aae3c9439721299_5807: module verification
failed: signature and/or required key missing - tainting kernel
[  278.406199] stap module notifier triggered in unexpected state 3
[  282.516143] stap module notifier triggered in unexpected state 3
[  291.866004] stap module notifier triggered in unexpected state 3
[  550.950819] hrtimer: interrupt took 1275312 ns
====

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