My i386 box (P200, 64MB, Apr 2 sources) just stopped. No coredump, sorry.
>From memory:

	uvm_pageout -> pool_drain -> pool_reclaim+0x108

249             /*
250              * Unlink a page from the pool and release it.
251              */
252     ****    TAILQ_REMOVE(&pp->pr_pagelist, ph, ph_pagelist);
253             (*pp->pr_free)(ph->ph_page, pp->pr_pagesz, pp->pr_mtype);
254             pp->pr_npages--;
255             pp->pr_npagefree++;

	<pool_reclaim+257>:  testl  %edx,%edx
	<pool_reclaim+259>:  je     0xf0137418 <pool_reclaim+272>
	<pool_reclaim+261>:  movl   0x4(%esi),%eax
****	<pool_reclaim+264>:  movl   %eax,0x4(%edx)

-- 
Juergen Hannken-Illjes - hannken@eis.cs.tu-bs.de - TU Braunschweig (Germany)