On Tue, Sep 15, 2020 at 10:24:25AM -0700, Linus Torvalds wrote:
On Tue, Sep 15, 2020 at 7:28 AM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
GCOV built with GCC 10 doesn't initialize n_function variable. This
produces different kernel panics as was seen by Colin in Ubuntu and me
in FC 32.
As a workaround, let's disable GCOV build for broken GCC 10 version.
Oh, Peter Oberparleiter actually figured out what was wrong, and we
have commit 40249c696207 ("gcov: add support for GCC 10.1") upstream
that enables it again with the fix for the changed semantics in
gcc-10.
AUTOSEL spotted it
(https://lore.kernel.org/stable/20200914130358.1804194-27-sashal@xxxxxxxxxx/),
and I didn't want to rush it in given it doesn't have a fixes/stable
tag.
I'll queue it up for this cycle as you've pointed it out.
--
Thanks,
Sasha
