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[Bug testsuite/13650] on rawhide, 'scan_unevictable_pages' warning


http://sourceware.org/bugzilla/show_bug.cgi?id=13650

--- Comment #1 from David Smith <dsmith at redhat dot com> 2012-02-02 18:20:24 UTC ---
Looks like this comes from 2 example scripts (or would if you got the error
more than once):

general/para-callgraph.stp
general/para-callgraph-verbose.stp

The testcase for both of these does something like the following:

# stap para-callgraph.stp 'kernel.function("*@fs/proc*.c")'
'kernel.function("vfs_read")' -c "cat /proc/sys/vm/* || true"

If a process reads /proc/sys/vm/scan_unevictable_pages, that warning is
generated. On a freshly rebooted rawhide system with that kernel, just doing
the following by hand will cause that warning to appear:

# cat /proc/sys/vm/scan_unevictable_pages

Our options here are to ignore the warning or read a different set of files,
perhaps something in the testsuite directory itself.

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