On Wed, Aug 18, 2021 at 01:34:04PM +0100, Dimitri John Ledkov wrote: > One cannot ftrace functions used to setup ftrace. Doing so leads to a > racy kernel panic as observed by users on SiFive HiFive Unmatched > boards with Ubuntu kernels. > > This has been debugged and fixed in v5.12 kernels by ensuring that all > sbi functions are excluded from ftrace. > > Link: https://forums.sifive.com/t/u-boot-says-unhandled-exception-illegal-instruction/4898/12 > BugLink: https://bugs.launchpad.net/bugs/1934548 > > Guo Ren (2): > riscv: Fixup wrong ftrace remove cflag > riscv: Fixup patch_text panic in ftrace > > arch/riscv/kernel/Makefile | 5 +++-- > arch/riscv/mm/Makefile | 3 ++- > 2 files changed, 5 insertions(+), 3 deletions(-) > > -- > 2.30.2 > Now queued up, thanks. greg k-h
