[Bug runtime/17951] New: cast-user.exp regressed due to the syscall.bind tapset modification

[Bug runtime/17951] New: cast-user.exp regressed due to the syscall.bind tapset modification

[mcermak at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17951

            Bug ID: 17951
           Summary: cast-user.exp regressed due to the syscall.bind tapset
                    modification
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: mcermak at redhat dot com

The cast-user.exp regressed on rhel[67] all arches except x86_64 and aarch64.
The cause apparently is commit 238e9406.

The testcase contains an expected output text sample. On affected platforms the
testcase now produces twice the expected output (and thus fails). This seems to
relate to commit 238e9406, where the bind syscall has been modified, so that
now it's being hit twice on affected platforms. 

On x86_64 the testcase works correctly because:

=======
 7.1 S x86_64 # stap -e 'probe syscall.bind { println(pp()) }' -c
/root/systemtap/testsuite/cast-user.exe
kernel.function("SyS_bind@net/socket.c:1515").call?
 7.1 S x86_64 # 
=======

Following is an example of the issue cause:

=======
 7.1 S s390x # stap -e 'probe syscall.bind { println(pp()) }' -c
/root/systemtap/testsuite/cast-user.exe
kernel.function("SyS_socketcall@net/socket.c:2473").call?
kernel.function("SyS_bind@net/socket.c:1515").call?
 7.1 S s390x # 
=======

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[Bug runtime/17951] cast-user.exp regressed due to the syscall.bind tapset modification

[mcermak at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17951

Martin Cermak <mcermak at redhat dot com> changed:

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

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[Bug runtime/17951] cast-user.exp regressed due to the syscall.bind tapset modification

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17951

David Smith <dsmith at redhat dot com> changed:

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

--- Comment #1 from David Smith <dsmith at redhat dot com> ---
Evidently commit 238e9406 introduced some syscall nesting. I'll straighten it
out.

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[Bug runtime/17951] cast-user.exp regressed due to the syscall.bind tapset modification

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17951

David Smith <dsmith at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|systemtap at sourceware dot org    |dsmith at redhat dot com

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