On 2021/04/29 16:59, Alexander Bluhm wrote: > On Thu, Apr 29, 2021 at 04:17:05PM +0200, Martin Pieuchot wrote: > > On 29/04/21(Thu) 12:07, Alexander Bluhm wrote: > > > On Thu, Apr 29, 2021 at 11:08:30AM +0200, Mark Kettenis wrote: > > > > > > panic: kernel diagnostic assertion "pg->wire_count == 0" failed: > > > > > > file "/usr/src/sys/uvm/uvm_page.c", line 1265 > > > > > > > > I suspect pmapae.c rev 1.61 causes this issue. Does reverting that > > > > commit "fix" the issue? > > > > > > > > It won't really fix the issue as you may still hit the "can't locate PD > > > > page" > > > > panic. > > > > > > I think this diff prevents the panic. But I need one more test run > > > to be sure. > > One test without and one with this diff. Either panic or make build > passes. I am convinced that this triggers the bug. And one of my > i386 regress machines can easily reproduce it. Console access for > developers possible.
I only tried backing out the whole commit so far; it's been building ports for 5h including some huge ram-hungry ones, I think I would have seen it on at least one of the four machines by now.
