From: "Michael S. Tsirkin" <m...@redhat.com> Date: Mon, 12 Apr 2021 18:33:45 -0400
> On Mon, Apr 12, 2021 at 06:08:21PM -0400, Michael S. Tsirkin wrote: >> OK I started looking at this again. My idea is simple. >> A. disable callbacks before we try to drain skbs >> B. actually do disable callbacks even with event idx >> >> To make B not regress, we need to >> C. detect the common case of disable after event triggering and skip the >> write then. >> >> I added a new event_triggered flag for that. >> Completely untested - but then I could not see the warnings either. >> Would be very much interested to know whether this patch helps >> resolve the sruprious interrupt problem at all ... >> >> >> Signed-off-by: Michael S. Tsirkin <m...@redhat.com> > > Hmm a slightly cleaner alternative is to clear the flag when enabling > interrupts ... > I wonder which cacheline it's best to use for this. > > Signed-off-by: Michael S. Tsirkin <m...@redhat.com> Please make a fresh new submission if you want to use this approach, thanks.
