In theory, we could enable HIGHMEM and VMSPLIT_2G (not VMSPLIT_3G) for arm32 kernel to workaround this issue, with the 2G user space and 2G kernel space, those boards (rpi2/3 boards) with only 1G physical ram will not map ram to highmem region.
But I remember setting VMSPLIT_2G will break the SD card on rpi4, make the rpi4 can't mount the rootfs on the sd card. I will retest VMSPLIT_2G setting, maybe with the updated patches, the sd controller can work with VMSPLIT_2G. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852510 Title: IO errors when writing large amounts of data to USB storage in eoan on RPI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1852510/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
