On Mon, Jan 20, 2020 at 12:51:00PM +0000, Andrew Doran wrote: > This also happened the last time I touched rw_downgrade(), and I backed out > the change then, but both times I don't see the bug. I have some questions: > > - Are you running DIAGNOSTIC and/or LOCKDEBUG? I would be very interested > to see what happens with a LOCKDEBUG kernel here.
I think that's basically it! - custom without any of DIAGNOSTIC / DEBUG / LOCKDEBUG fails - standard GENERIC with DIAGNOSTIC fails - custom with all of DIAGNOSTIC / DEBUG / LOCKDEBUG boots! > - Do you have an ATI Radeon graphics chip? (of the two failing one with and one without) > - Are you using ZFS? no I'll try addking LOCKDEBUG to the other one and see if that allows it to boot too... Cheers, Patrick