Re: panic: biodone2 already

[Jaromír Doleček <jaromir.dolecek%gmail.com@localhost>]

2018-08-07 18:42 GMT+02:00 Emmanuel Dreyfus <manu%netbsd.org@localhost>:
>  kern/53506

Thanks. Could  you please try a -current kernel for DOMU and see if it
crashes the same? If possible a DOMU kernel from daily builds, to rule
out local compiler issue.

There are not really many differences in xbd/evtchn code itself
between 8.0 and -current however. There was some interrupt code
reorganization which might affected this, but this happened after
netbsd-8 was created.

xbd is not mpsafe, so it shouldn't be even race due to parallell
processing on different CPUs. Maybe it would be useful to check if the
problem still happens when you assign just single CPU to the DOMU.

Jaromir