I have just made an attempt to upgrade from gentoo-sources-3.12.1. I have used the same configuration and the diff shows only: -# Linux/x86 3.12.1-gentoo Kernel Configuration +# Linux/x86 3.12.5-gentoo Kernel Configuration The new bzImage is copied to /boot/efi/boot/bootx64.efi, its hash is added to the database but rebooting hangs after the black curtains of the EFI-enabled bios. Falling back to the previous kernel seems to work. The platform is AMD A4-1200 APU with Radeon(TM) HD Graphics. Reproducible: Always
Created attachment 365452 [details] Kernel config
Created attachment 365454 [details] emerge --info
I can also confirm that 3.12.4-gentoo works.
I have been running every kernel from the 3.12 branch since 3.12.1 booting via EFI stub, however, I didn‘t encounter this issue at all. My platform is ASUS F2A85-V plugged with AMD A10-6700 APU.
Created attachment 366196 [details] kernel config Sorry, I forgot to attach my kernel config.
To update this issue also gentoo-sources-3.13 doesn't boot. I'm going to try the configuration of Christian.
Created attachment 368334 [details] Crash with other kernel configuration I get this error with the other kernel configuration. This results in a reboot, which is every interesting with another crash (don't know where it comes from).
Created attachment 368336 [details] This is the secondary crash
Should have checked this ages ago. If I remove the radeondrm stuff from my kernel configuration (it was a module). The system boots normally. Now I would need to find an expert that could tell me what is so special about this machine.
Problem is suddenly solved, after compiling without radeondrm, and enabling it again. Only relevant addition in .config seems: CONFIG_DRM_KMS_FB_HELPER=y