[Bug runtime/17983] New: SEGV in bz6850.exp (f20/i686)

[Bug runtime/17983] New: SEGV in bz6850.exp (f20/i686)

[mcermak at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17983

            Bug ID: 17983
           Summary: SEGV in bz6850.exp (f20/i686)
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: mcermak at redhat dot com

bz6850.exp causes SEGV on f20/i686

=======
f20 i686 # stap -V | head -n 1
Systemtap translator/driver (version 2.7/0.161, commit
release-2.6-274-gbabad5b31b70 + changes)
f20 i686 # uname -r 
3.18.6-100.fc20.i686+PAE
f20 i686 # gcc systemtap.base/bz6850.c  -g -o bz6850
f20 i686 # stap  -e 'probe process("./bz6850").function("*").return {exit()}'
-c './bz6850' 
WARNING: function _start return probe is blacklisted: keyword at <input>:1:1
 source: probe process("./bz6850").function("*").return {exit()}
         ^
WARNING: Child process exited with signal 11 (Segmentation fault)
WARNING: /usr/bin/staprun exited with status: 1
Pass 5: run failed.  [man error::pass5]
f20 i686 #
=======

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[Bug runtime/17983] SEGV in bz6850.exp (f20/i686)

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17983

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fche at redhat dot com

--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
This sort of failure usually represents a kernel/uprobes bug.

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[Bug runtime/17983] SEGV in bz6850.exp (f20/i686)

[srikar at linux dot vnet.ibm.com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17983

Srikar Dronamraju <srikar at linux dot vnet.ibm.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |srikar at linux dot vnet.ibm.com

--- Comment #2 from Srikar Dronamraju <srikar at linux dot vnet.ibm.com> ---
I think this bug is duplicate of
https://sourceware.org/bugzilla/show_bug.cgi?id=16662 and for more info please
read https://bugzilla.redhat.com/show_bug.cgi?id=1073605

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[Bug runtime/17983] SEGV in bz6850.exp (f20/i686)

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17983

--- Comment #3 from Frank Ch. Eigler <fche at redhat dot com> ---
Srikar, perhaps, but note that _start is blacklisted, so that
the particular bug #16662 should not be in effect here.

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[Bug runtime/17983] SEGV in bz6850.exp (f20/i686)

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17983

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #4 from Frank Ch. Eigler <fche at redhat dot com> ---
seems happy with 4.4 era kernels on x86

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