On Thu 2021-01-07 08:43:16, Vineet Gupta wrote: > Hi John, > > On 1/7/21 1:02 AM, John Ogness wrote: > > Hi Vineet, > > > > On 2021-01-06, Vineet Gupta <vgupta@xxxxxxxxxxxx> wrote: > > > This breaks ARC booting (no output on console). > > > > Could you provide the kernel boot arguments that you use? This series is > > partly about addressing users that have used boot arguments that are > > technically incorrect (even if had worked). Seeing the boot arguments of > > users that are not experiencing problems may help to reveal some of the > > unusual console usages until now. > > > Kernel command line: earlycon=uart8250,mmio32,0xf0005000,115200n8 > console=ttyS0,115200n8 debug print-fatal-signals=1 This is strange, the problematic patch should use ttynull only as a fallback. It should not be used when a particular console is defined on the command line. The only explanation would be that ttyS0 gets registered too late and ttynull is added as a fallback in the meantime. Anyway, I propose the revert the problematic patch for 5.11-rc3, see https://lore.kernel.org/lkml/20210107164400.17904-2-pmladek@xxxxxxxx/ This mystery is a good reason to avoid bigger changes at this stage. Best Regards, Petr
