https://bugs.kde.org/show_bug.cgi?id=393351

--- Comment #14 from Julian Seward <jsew...@acm.org> ---
This bug has been reported 5 times in the past year, as bug numbers 393351,
409999, 414944, 411303 and 414053.  I would like to fix it.  I tried the
steps-to-reproduce shown in bugs 393351 and 414053, but without success: I
can't reproduce it either with the trunk or with 3.15.0.

Without being able to reproduce it, I can't fix it.  The first unhandled byte,
0x62, isn't the start of any known instruction (in 64-bit mode), so I suspect
there has been some failure earlier on.  Maybe Valgrind's instruction decoder
lost track of where it was on the previous instruction.  That's just a guess,
though.

What would be really helpful is if someone could reproduce the failure, and
then use objdump -d to show the instructions around the failure point.  I can
give guidance on how to use objdump if that helps.  If you want to try this, I
suggest you first reproduce the failure while giving --demangle=no
--sym-offsets=yes to Valgrind.  That will make it much easier to relate the
stack trace that Valgrind produces at the failure point, to the output of
objdump -d.

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