[Bug uprobes/34301] user string copy fault -14...near 'user_string_n' at /usr/share/systemtap/tapset/uconversions.stp:128:10

[mike_itguy at Yahoo dot co.uk]

https://sourceware.org/bugzilla/show_bug.cgi?id=34301

--- Comment #3 from Mike <mike_itguy at Yahoo dot co.uk> ---
(In reply to Frank Ch. Eigler from comment #1)
> The "error::fault" man page gives some explanation of the possibilities. 
> Some of these are benign.
> 
> A little greater verbosity on stap -p2, e.g. stap --vp 04000 .... would tell
> us where systemtap thinks it can find each $context variable, and one can
> compare that against a "readelf -w" dwarf dump of the
> /usr/lib/apache2/modules/libphp.so file's debuginfo (use debuginfod-find if
> needed).

The readelf -w libphp.so is a 43MB size when compressed. I don't know how to
look up the context variables in this large file. Is there some smaller subset
of data that a different command-line option to readelf might provide the
required information from a smaller sized output?  Apologies for my lack of
knowledge in this are but this stuff is new to me. I did previously attach the
stderr from the stap command with arguments --vp 04000 .

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