[Bug tapsets/16557] New: on RHEL5, the vm.mmap probe alias needs help

dsmith at redhat dot com sourceware-bugzilla@sourceware.org
Tue Feb 11 17:35:00 GMT 2014


https://sourceware.org/bugzilla/show_bug.cgi?id=16557

            Bug ID: 16557
           Summary: on RHEL5, the vm.mmap probe alias needs help
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com

On RHEL5 (2.6.18-371.4.1.el5), the vm.mmap probe alias ends up being a probe
point on 'kernel.function("do_mmap")'. However, this function is always
inlined, and we can't access any arguments. However, there is only one caller
of do_mmap(), do_mmap_pgoff(). We can access its arguments.

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