Download Red Hat Enterprise Linux 5 5.8 Technical Notes

Chapter 4. Package Updates
BZ #5084 38
Mesa previously used a numerically unstable algorithm in an internal matrix inversion function,
which caused the gluUnProject() and gluUnProject4() functions to return incorrect results. T his
update applies a patch based on upstream code that corrects the algorithm for matrix inversion
used by Mesa. T he gluUnProject() and gluUnProject4() functions now work as expected.
All users of mesa are advised to upgrade to these updated packages, which fix these bugs.
4.107. microcode_ctl
4.107.1. RHBA-2012:0189 — microcode_ctl bug fix and enhancement update
An updated microcode_ctl package that fixes two bugs and adds one enhancement is now available for
Red Hat Enterprise Linux 5.
T he microcode_ctl package provides microcode updates for Intel and AMD processors.
Bug Fixes
BZ #6904 14
A previous update introduced a memory leak when loading the updated microcode into memory
before conversion of the microcode into a format suitable for the CPU. T his update includes a
corrected patch that de-allocates the memory correctly, ensuring memory does not leak.
BZ #760323
Previously, the command line definitions from the spec file specified an incorrect path
(/etc/firmware/microcode.dat) to the microcode firmware. As a consequence, updating
microcode_ctl failed with the following error message:
microcode_ctl: cannot open source file '/lib/firmware/microcode.dat'
T his update modifies the firmware path to the correct /lib/firmware/microcode.dat, and
microcode_ctl now updates correctly.
Enhancement
BZ #713653
T he Intel CPU microcode file has been updated to version 20111110. T his is the most recent
version of the microcode available from Intel.
Note that the system must be rebooted in order for these changes to take effect.
All users of microcode_ctl are advised to upgrade to this updated package, which fixes these bugs and
adds this enhancement.
4.108. mkinitrd
191