Package: linux Version: 6.12.94-1 After upgrading from Bookworm (6.1.0-18), rebuilding a degraded RAID10 array proceeds at ~1MB/s with 100% CPU load on one core. Booting the same system with the old 6.1 series kernel and resuming the rebuild of the same array proceeds at over 200MB/s with minimal CPU load. This is on a LSI SAS3008 RAID controller, and the default 6.12 readahead settings were adjusted back down to the same values as the 6.1 kernel with no improvement.

