Public bug reported:
I have fixed a major usability bug in iucode-tool 1.5.2, which dates
back to iucode-tool 1.2.
Without this fix, mixed-stepping hardware configurations are not
supported automatically, and require manual configuration.
Mixed-stepping configurations are somewhat common on Xeon 5300 (Mac PRO
and IBM x-series), for example.
I recommend that Ubuntu update their "Willy Werewolf" and "Xenial Xerus"
distributions with these changes, in order to properly support users of
mixed-stepping Xeon systems.
Alternatively, iucode-tool v1.2 up to v1.5.1 must be configured with the
--enable-cpuid-device build-time option, but that choice has some
drawbacks: it requires root permissions as well as the cpuid module to
be loaded in order to detect processor signatures, and it scales *very*
poorly in large boxes with too many processors.
** Affects: iucode-tool (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1577161
Title:
Please update Xenial and Willy to 1.5.2-1 (support mixed-stepping
configurations)
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