On 2024-12-03 17:40:09 [+0800], ende.tan@xxxxxxxxxxxxxxxx wrote: > From: Tan En De <ende.tan@xxxxxxxxxxxxxxxx> > > The lock is a sleeping lock and local_irq_save() is not the optimsation > we are looking for. Redo it to make it work on -RT and non-RT. You need to state which kernel this needs to be applied to. The change you looking for is 32c694ec3efc2 ("serial: sifive: Use uart_prepare_sysrq_char() to handle sysrq.") > Signed-off-by: Tan En De <ende.tan@xxxxxxxxxxxxxxxx> > Signed-off-by: Tan Ley Foon <leyfoon.tan@xxxxxxxxxxxxxxxx> Sebastian