Quoting Michael Ellerman (2016-07-11 16:29:20) > Samuel Mendoza-Jonas <s...@mendozajonas.com> writes: > > > Commit 2def86a7200c > > ("hvc: Convert to using interrupts instead of opal events") > > enabled the use of interrupts in the hvc_driver for OPAL platforms. > > However on machines with more than one hvc console, any console after > > the first will fail to register an interrupt handler in > > notifier_add_irq() since all consoles share the same IRQ number but do > > not set the IRQF_SHARED flag: > > > > [ 51.179907] genirq: Flags mismatch irq 31. 00000000 (hvc_console) vs. > > 00000000 (hvc_console) > > [ 51.180010] hvc_open: request_irq failed with rc -16. > > > > This error propagates up to hvc_open() and the console is closed, but > > OPAL will still generate interrupts that are not handled, leading to > > rcu_sched stall warnings. > > > > Set IRQF_SHARED when calling request_irq, allowing additional consoles > > to start properly. This is only set for consoles handled by > > hvc_opal_probe(), leaving other types unaffected. > > > > Signed-off-by: Samuel Mendoza-Jonas <s...@mendozajonas.com> > > Cc: <sta...@vger.kernel.org> # 4.1.x- > > --- > > drivers/tty/hvc/hvc_console.h | 1 + > > drivers/tty/hvc/hvc_irq.c | 7 +++++-- > > drivers/tty/hvc/hvc_opal.c | 3 +++ > > 3 files changed, 9 insertions(+), 2 deletions(-) > > Acked-by: Michael Ellerman <m...@ellerman.id.au> > > Greg are you happy to take these two?
Hi Greg, I don't see this series anywhere, do you mind if I take them via the powerpc tree for 4.8 ? Or do you want to pick them up. cheers _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev