On Wed, 2016-11-16 at 14:09:33 UTC, Vaibhav Jain wrote: > If an afu interrupt is in flight when an eeh error is triggered the > control still reaches the function native_irq_multiplexed and the > PE-Handle read from the CXL_PSL_PEHandle_An register is 0xffff. The > function then erroneously assumes that the interrupt belonged to a > detached context and generates a warning with full stack dump in the > kernel log complaining: > > "Unable to demultiplex CXL PSL IRQ for PE 65535 DSISR ffffffff DAR > ffffffff. (Possible AFU HW issue - was a term/remove acked with > outstanding transactions" > > To fix this the patch adds new code to the function > native_irq_multiplexed function to compares the read value of register > CXL_PSL_PEHandle_An to ~0ULL. If true then logs a warning message > saying that the interrupt is being ignored and returns IRQ_HANDLED from > the irq handler. > > Reviewed-by: Andrew Donnellan <andrew.donnel...@au1.ibm.com> > Acked-by: Frederic Barrat <fbar...@linux.vnet.ibm.com> > Acked-by: Ian Munsie <imun...@au1.ibm.com> > Signed-off-by: Vaibhav Jain <vaib...@linux.vnet.ibm.com>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/abf051be684be768c1ee079514f4d0 cheers
