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Subject: Re: [hwloc-devel] lstopo pdf weirdness
From: Samuel Thibault (samuel.thibault_at_[hidden])
Date: 2010-08-29 17:37:51


Jeff Squyres, le Thu 26 Aug 2010 16:36:41 -0400, a écrit :
> Here's two images, both from the same machine, both generated via hwloc 1.0.2.
>
> Note that the PDF image is missing some characters here and there. E.g., "NUMANode" on the PNG shows up as "NU ANode" on the PDF. "24MB" on the PNG is "24 B" on the PDF.
>
> Any idea what causes this?

I'd tend to think cairo is guilty, like a fault in font processing.
That might also be some buffer overrun which ends up right in the middle
of the text string that utils/lstopo-cairo.c gives to cairo_show_text.

You could try to pass it through valgrind to look for overruns.

Samuel