On 8/31/2018 3:59 PM, Keith Busch wrote:
On Fri, Aug 31, 2018 at 03:55:58PM -0700, Sinan Kaya wrote:
On 8/31/2018 3:33 PM, Keith Busch wrote:
Darn, you're right. The kernel allocates up to 32 vectors and the port is
free to divvy them up however it wants amont its supported services. It
just so happened most of the ports I tested used the same one. There's
no way to really close this race if they are separate vectors though,
so maybe just leave this as a 'best effort' approach and update the
change log accodingly.
or take the big hammer and move them into a single workqueue?
That wouldn't really help if they're different interrupt vectors since
they could happen in either order with a delay between the CPU seeing
each of them.
I was trying to make it look like single interrupt in software even though
they are sourced from different interrupt handlers.
But, you are right. Interrupts can arrive in arbitrary order.
