ERROR: Unknown configuration variable enable_faulty_page. [in big-fuzz.yaml]

[LuChuanV]

ERROR: Unknown configuration variable enable_faulty_page. It's likely a typo in the configuration file.

[griffinandrew]

Then when this is commented out it throws an assembler error " 'generated.asm -o generated.o' returned nonzero exit status 1" , "Error: operand type mismatch for 'bt' ".

[OleksiiOleksenko]

@LuChuanV Thanks for reporting the issue! This was indeed an outdated field; fixed now (see 493d347 ).

@griffinandrew I could not reproduce this issue. Could you post generated.asm that triggered this error? Also, which branch are you using?

[griffinandrew]

@OleksiiOleksenko Thanks for the quick reply, I believe the issue stems from the unavailability of vmlinux on ubuntu 22.04. When I make the kernel module it skips BTF generation which is exactly what the assembler errors on. It is very strange though, the other 2 basic configs listed in the readme run and terminate normally. I am on the main branch.

[OleksiiOleksenko]

The error is thrown by the assembler when generator.py executes as generated.asm -o generated.o. This happens before the kernel module is ever called, so I doubt that the error has anything to do with vmlinux.

It looks like something is wrong with the assembler. Could you post the version you're using (run as -v)?

Also, could you try assembling the following:

.intel_syntax noprefix
BTS EAX, -39

by running

as assembly_file.asm

[griffinandrew]

[OleksiiOleksenko]

The issue should be fixed now. Make sure clone the latest release or the top commit on the main branch, and to re-run the download_spec command to get an update specification of BT instructions.

@griffinandrew Could you confirm the fix on your setup?