compiz team mailing list archive

["Stephen M. Webb" <stephen.webb@xxxxxxxxxxxxx>]

The default 32-bit Intel compile flags in Ubuntu are for Pentium III
(i586) or later, which all provide SSE instructions.  The Sempron line
of GPUs from AMD have all supported SSE instructions, although some of
the earlier ones do not support SSE2/SSE3 extensions.  I myself have a
system with an Athlon 3000+ (predecessor to the Sempron) on which Compiz
runs just peachy, but I run a 64-bit image.

Compiz does not explicitly include any Intel-specific intrinsics or
assembly code, so does not invoke SSE instructions directly.  It's
possible that SSE instructions are introduced by the compiler where the
optimizer says it's advantageous, or linked in from a dynamically-loaded
shared object such as an image decoder library or user-space video
driver.  WIthout examining the core dump it is not possible to say what
the cause of this crash was.

Please try attaching the relevant crash information to this bug by using
the terminal command "apport-collect 1409608".  We might be able to dive
a little deeper with more information.

** Changed in: compiz (Ubuntu)
   Importance: Undecided => Medium

** Changed in: compiz (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1409608

Title:
  The 32-bit i386 install executes SSE instructions.

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