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URL: https://www.phoronix.com/news/Linux-Drops-Old-440BX-EDAC

⇱ Linux Gets Rid Of Intel 440BX EDAC Driver For Old Pentium CPUs After Being Broken For 19+ Years - Phoronix


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Linux Gets Rid Of Intel 440BX EDAC Driver For Old Pentium CPUs After Being Broken For 19+ Years

Written by Michael Larabel in Linux Kernel on 13 February 2026 at 08:25 AM EST. 26 Comments
As some long overdue housekeeping, the Linux 7.0 kernel has removed an Error Detection And Correction "EDAC" driver for the Intel 440BX and 440GX chipset. The driver is being removed not only because that chipset was just used by old Celerons and Pentium II / Pentium III CPUs but that it's been in the kernel all this time while being known to be broken for 19+ years.

The Intel 440BX chipset and the higher-end 440GX chipset were used for Slot 1 and Socket 370 P6-based CPUs from the late 90's. Long obsolete and incredibly unlikely anyone still having an old Pentium II / Pentium III are running modern Linux software stacks on them with the newest upstream kernel...

Back in 2007, the i82443bxgx EDAC driver for memory error detection/correction on the 440BX / 440GX systems was marked as broken with the basis:
"drivers/edac-new-i82443bxgz-mc-driver: mark as broken

It will claim the PCI devices from under intel_agp.ko's feet. Greg is brewing some fix for that."

Nineteen years later after being being marked as broken, no fix for that Intel AGP interaction ever materialized.

Now finally with Linux 7.0 that kernel is outright removed. Nearly 500 codes dropped from the Linux kernel tree for that broken driver that's long been obsolete.

👁 Intel Pentium III CPU


The EDAC pull for Linux 7.0 also drops the obsolete r82600 driver used for the Radisys 82600 embedded chipset used with Pentium III era processors. This driver wasn't "broken" but long obsolete and likely used by anyone running upstream kernels.

The EDAC pull request in addition to dropping those obsolete drivers does add support for Intel Amston Lake and Intel Panther Lake H to the igen6_edac driver. These EDAC changes have all been merged for Linux 7.0.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.