In article <444E6642.20804@geekrants.org>
netbsd@geekrants.org wrote:

> I get the following with GENERIC :
 :
> pickle ~ # panic: lockmgr: no context
> Stopped at      netbsd:cpu_Debugger+0x4:        jr      ra
>                  bdslot: nop
> db> trace
> 801c41b4+214 (88ffe000,0,bc800000,d) ra 80146b0c sz 0
> panic+190 (88ffe000,d,bc800000,74) ra 80121b00 sz 40
> 80121924+1dc (88ffe000,d,bc800000,74) ra 0 sz 0
> User-level: curlwp NULL
> db>

Hmm, looks like kernel stack overflow caused by spurious interrupts
(but not sure). Could you try GENERIC kernels from recent -current?
ftp://ftp.NetBSD.org/pub/NetBSD-daily/HEAD/
---
Izumi Tsutsui