Every time I suspend/unsuspend my laptop (Dell XPS 15 9550) I see this kernel log:
Message from syslogd@cruz-XPS-15-9550 at Sep 14 07:58:31 ...
kernel:[ 725.565407] do_IRQ: 5.33 No irq handler for vector
My CPU is Intel i7-6700HQ and I'm with both graphic cards this error happens (intel graphic card or NVidia graphic card).
I've already tried to use a kernel parameter pci=nomsi (this one almost render unusable my machine) and apic=verbose didn't add much info to dmesg output.
With Ubuntu 20.10 (kernel 5.8.0-44-generic) the problem has migrated to:
Message from syslogd@cruz-XPS-15-9550 at Mar 9 16:49:45 ...
kernel:[23057.190296] __common_interrupt: 5.33 No irq handler for vector
According to the kernel source, 5.33 means CPU 5, IRQ 33.
Flash news!!
On Ubuntu 20.10 something fixed this problem a couple of days ago!
