This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1911359 Title: Boot fails: failed to validate module [nls_iso8859_1] BTF: -22 Status in linux package in Ubuntu: Fix Committed Bug description: I just updated to an unstable kernel build from the kernels team Repo it´s the 5.11-2.3 package (5.11 RC3) The mount of /dev/boot fails with a message: IO charset iso8859-1 not found this is probably due to the kernel being unable to load the nls_iso8859-1 module. I see multiple messages with BPF:No data and for the nls_iso8859-1 module a message: failed to validate module [nls_iso8859_1] BTF: -22 this is probably introduced by this patch: https://lkml.org/lkml/2020/11/6/1143 I don´t undestand what BTF validation is and whether this is an issue with linux 5.11-rc3 or with how the kernel modules are packaged in Ubuntu. My machine is a Renoir (zen2) based Acer Laptop running in UEFI mode, with a fat32 /boot partition and a ext4 / root partition. The root partition gets mounted, but once the /boot should be mounted, this fails with the mentioned error.. Other modules seem to load fine, things like "amdgpu" are already loaded! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1911359/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
