On 17/03/2016 17:08, Christian Borntraeger wrote:
Good (or bad?) news is the assert also triggers on F23, it just seems
to take longer.
I guess good news, because we can rule out the kernel (not that I
believed it was a kernel problem, but the thought is always there in
the background...).
The interaction between ioeventfd and dataplane is too complicated. I
think if we get rid of the start/stop ioeventfd calls (just set up the
ioeventfd as soon as possible and then only set/clear the handlers)
things would be much simpler.
I'll see if I can produce something based on Conny's patches, which are
already a start. Today I had a short day so I couldn't play with the
bug; out of curiosity, does the bug reproduce with her work + patch 4
from this series + the reentrancy assertion?