Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [RFC][PATCH 00/16] objtool: vmlinux.o and noinstr validation | Date | Tue, 17 Mar 2020 10:26:49 +0100 |
| |
Masami Hiramatsu <mhiramat@kernel.org> writes: > BTW, out of curiously, if BUG*() or WARN*() cases happens in the noinstr > section, do we also need to move them (register dump, stack unwinding, > printk, console output, etc.) all into noinstr section?
The current plan is to declare BUG()/WARN() "safe". On x86 it is kinda safe as it uses UD2. That raises an exception which handles the bug/warn after establishing the correct state.
Of course it's debatable, but moving all of this into the noinstr section might be just a too wide scope.
Thanks,
tglx
| |