On Tue, Jan 10, 2023 at 04:32:59PM +0000, Will Deacon wrote:
On Tue, Jan 10, 2023 at 09:44:40PM +0530, Naresh Kamboju wrote:
GOOD: next-20230109 (defconfig + kselftests configs) BAD: next-20230110 (defconfig + kselftests configs)
I couldn't find a kselftests .config in the tree (assumedly I'm just ont looking hard enough), but does that happen to enable CONFIG_STACK_TRACER=y?
It's adding on all the config fragments in
tools/testing/selftests/*/config
which includes ftrace, which does set STACK_TRACER>
If so, since you're using clang, I wonder if this is an issue with 68a63a412d18 ("arm64: Fix build with CC=clang, CONFIG_FTRACE=y and CONFIG_STACK_TRACER=y")?
ftrace also enables FTRACE.
Please let us know how the bisection goes...
Not sure that Naresh has a bisection going, I don't think he's got direct access to such a board.