I did test with VMSPLIT_2G today, the mmc/sd controller will not work anymore on rpi4 boards, so enable VMSPLIT_2G is not a solution so far.
And today I also tested dwc2, it worked well, maybe we could enable dwc2 instead of dwc_otg, then we could use a single kernel to support rpi2/3/4. dwc2 worked well both with VMSPLIT_2G and VMSPLIT_3G. I am building a formal armhf and arm64 kernel with dwc2 enabled, will test all kernels on all boards. And I will share the kernels to the lp, anyone could help test them. thx. -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs