cannot boot with RAP enabled

[torsten]

Hi,

I cannot boot with the RAP enabled kernel on Archlinux (4.5.5, grsec 201605211442). The boot process stops before I can enter my LUKS password.

I uploaded the picture of the error message https://i.imgsafe.org/9c409541d6.jpg and here is my config http://pastebin.com/D1zCt8fn.

Please let me know how I can provide more information about this issue! I don't know whether this is relevant to narrow down the issue, I use LUKS on top of a bcache device

Thanks,
Torsten

[PaX Team]

can you send me your vmlinux (from the build root)? or if you know your way around in assembly, you can look up the faulting RIP in vmlinux (adjusted for KASLR) and see which register is used for the following indirect call and see what code is there. i think it'll be RAX so you might as well just look that up (again, adjust it for KASLR) and let me know.

[PaX Team]

thanks for the report, this was a bunch of bad fptr casts in bcache, the next patch will fix them.

[torsten]

Thanks for your help! I will test it once the new version is released