On Thu, Apr 06, 2023 at 11:06:50AM +0200, Thorsten Leemhuis wrote: > [CCing the stable list as well as Greg and Sasha so they can correct me > if I write something stupid] > > On 06.04.23 10:27, Ricardo Cañuelo wrote: > > > > On 5/4/23 19:14, Thorsten Leemhuis wrote: > >> Wait, what? A patch (5225e1b87432 ("ARM: dts: meson: Fix the UART > >> compatible strings")) that was merged for v5.17-rc4 and is not in the > >> list of patches that were in 4.14.312-rc1 > >> (https://lore.kernel.org/all/20230403140351.636471867@xxxxxxxxxxxxxxxxxxx/ > >> ) is meant to suddenly cause this? How is this possible? Am I totally on > >> the wrong track here and misunderstanding something, or is this a > >> bisection that went horribly sideways? > > > > I didn't say this was introduced in 4.14.312-rc1, this has been failing > > for a long time and it was merged for 4.14.267: > > https://lwn.net/Articles/884977/ > > > > Sorry I wasn't clear before. > > Ahh, no worries and thx for this. But well, in that case let me get back > to something from your report: > > >>> KernelCI detected that this patch introduced a regression in > >>> stable-rc/linux-4.14.y on a meson8b-odroidc1. > >>> After this patch was applied the tests running on this platform don't > >>> show any serial output. > >>> > >>> This doesn't happen in other stable branches nor in mainline, but 4.14 > >>> hasn't still reached EOL and it'd be good to find a fix. > > Well, the stable maintainers may correct me if I'm wrong, but as far as > I know in that case it's the duty of the stable team (which was not even > CCed on the report afaics) to look into this for two reasons: > > * the regression does not happened in mainline (and maybe never has) > > * mainline developers never signed up for maintaining their work in > longterm kernels; quite a few nevertheless help in situation like this, > at least for recent series and if they asked for a backport through a > "CC: <stable@" tag – but the latter doesn't seem to be the case here > (not totally sure, but it looks like AUTOSEL picked this up) and it's a > quite old series. That is all true. So can the original report be sent to stable@xxxxxxxxxxxxxxx and we can take it from there? thanks, greg k-h