[PATCH 0/3] powerpc/module_64: Fix _mcount() stub
Naveen N. Rao
naveen.n.rao at linux.vnet.ibm.com
Wed Apr 22 17:47:49 AEST 2020
Naveen N. Rao wrote:
> This series addresses the crash reported by Qian Cai on ppc64le with
> -mprofile-kernel here:
> https://lore.kernel.org/r/15AC5B0E-A221-4B8C-9039-FA96B8EF7C88@lca.pw
>
> While fixing patch_instruction() should address the crash, we should
> still change the default stub we setup for _mcount() for cases where a
> kernel is built without ftrace.
I notice that I didn't write that properly yesterday. I meant that this
is required for cases where ftrace gets disabled for any reason,
resulting in the default calls to _mcount() remaining in the kernel
modules.
- Naveen
More information about the Linuxppc-dev
mailing list