"Stephen E. Baker" <baker.stephen.e@xxxxxxxxx> writes: > On Mon, May 30, 2022 at 10:21 AM Gabriel Krisman Bertazi > <krisman@xxxxxxxxxxxxx> wrote: >> >> "Stephen E. Baker" <baker.stephen.e@xxxxxxxxx> writes: >> >> > Hello, >> > >> > I have a Samsung Chromebook Plus (rk3399-gru-kevin) which boots linux >> > off an external ssd plugged into USB. The root filesystem is ext4 with >> > unicode support, case folding is enabled only on some directories in >> > my home directory. >> > >> > Since 5.17 the system has been unbootable. I ran a git bisect and it >> > pointed to aa8bf298a96acaaaa3af07d09cf7ffeb9798e48a ext4: simplify >> > ext4_sb_read_encoding >> >> Hi Stephen, >> >> This series moved the UTF-8 data tables to a kernel module; before it, >> the module had to be built-in. >> >> Since you have your rootfs as a case-insensitive filesystem, either the >> utf8data module needs to be available in the initramfs or unicode >> needs to be built-in. Are you building your own kernel? >> >> Can you confirm that utf8data.ko exists in your initramfs, and >> regenerate it if missing? Alternatively, make sure that you have >> CONFIG_UNICODE=y in your kernel configuration file. >> > Thanks Gabriel, I've verified that CONFIG_UNICODE=y, as well as > CONFIG_UNICODE_UTF8_DATA which exists in this patch for that > purpose, though it was removed earlier. Thanks for checking. Indeed, UNICODE_UTF8_DATA was just transitional, and went away right before being part of a release. CONFIG_UNICODE=y should have adressed it, if it was a problem with module not being available early enough. > >> If that doesn't work, can you provide the kernel log? If you can't >> collect the console output, a photo of the screen displaying the error >> will suffice. >> > I don't have any output to provide unfortunately. It fails before the > backlight turns on, and nothing is written to disk. I seem to remember > that someone else at Collabora had figured out a way to get a serial > console on this device - perhaps Tomeu. I'm not equipped for that > personally, particularly if it involves soldering. I'm following the discussion with Ted on the other subthread, but I don't have anything to add at the moment other than what is already said. Nothing stands out on that commit specifically and I couldn't reproduce it in a vm. I've reached out to Tomeu to get my hands on that exact chromebook, to try to reproduce it there. I will report back with my findings. -- Gabriel Krisman Bertazi
