On Tue, Apr 30, 2024 at 12:27:04PM -0700, Luis Chamberlain wrote: > 2a:* 8b 43 34 mov 0x34(%rbx),%eax <-- trapping instruction > RBX: 0000000000000002 RCX: 0000000000018000 Thanks, got it. I'll send a patch in the morning, but I know exactly what the problem is. You're seeing sibling entries tagged as dirty. That shouldn't happen; we should only see folios tagged as dirty. The bug is in node_set_marks() which calls node_mark_all(). This works fine when splitting to order 0, but we should only mark the first entry of each order. eg if we split to order 3, we should tag slots 0, 8, 16, 24, .., 56.
