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Kernel Log: Intel hibernate bug fixed

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Linux

Kernel versions 3.0.27, 3.2.14 and 3.3.1 were released on Monday evening and should resolve the bug which resulted in occasional memory corruption when systems with Intel graphics were woken from sleep (hibernation/software suspend/Suspend to Disk/ACPI S4). This fix has already been merged into the first pre-release version of Linux 3.4, which was released over the weekend.

The problem lies in the i915 DRM/KMS driver and has been present for at least a year. Most Intel notebook and desktop chipsets and processors released in the last five to seven years appear to be affected by the bug. As the commit comments on the fix reveal, the code for blinking the cursor in the console was at fault. This code now deactivates the function responsible for blinking the cursor when switching into and out of hibernation – Radeon and Nouveau DRM/KMS drivers have long taken this approach.

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