lock order reversal
1st 0xc3bcfde0 vm object (vm object) @ /usr/src/sys/vm/swap_pager.c:1323
2nd 0xc06f60a0 swap_pager swhash (swap_pager swhash) @ /usr/src/sys/vm/swap_pager.c:1838
3rd 0xc1036b90 vm object (vm object) @ /usr/src/sys/vm/uma_core.c:876
Stack backtrace:
backtrace(c0668b52,c1036b90,c067678e,c067678e,c067763c) at backtrace+0x17
witness_lock(c1036b90,8,c067763c,36c,1) at witness_lock+0x672
_mtx_lock_flags(c1036b90,0,c067763c,36c,1) at _mtx_lock_flags+0xba
obj_alloc(c10207e0,1000,d38859df,101,c06ca450) at obj_alloc+0x3f
slab_zalloc(c10207e0,1,c067763c,68c,c10207f4) at slab_zalloc+0xb3
uma_zone_slab(c10207e0,1,c067763c,68c,c1020890) at uma_zone_slab+0xd6
uma_zalloc_internal(c10207e0,0,1,5c1,72e,c06cb8c8) at uma_zalloc_internal+0x3e
uma_zalloc_arg(c10207e0,0,1,72e,2) at uma_zalloc_arg+0x3b9
swp_pager_meta_build(c3bcfde0,9,0,2,0) at swp_pager_meta_build+0x194
swap_pager_putpages(c3bcfde0,d3885bd0,7,0,d3885b20) at swap_pager_putpages+0x32d
default_pager_putpages(c3bcfde0,d3885bd0,7,0,d3885b20) at default_pager_putpages+0x2e
vm_pageout_flush(d3885bd0,7,0,eb,c071f820) at vm_pageout_flush+0x17a
vm_pageout_clean(c153bd90,0,c0677457,32a,0) at vm_pageout_clean+0x305
vm_pageout_scan(0,0,c0677457,5a9,1f4) at vm_pageout_scan+0x669
vm_pageout(0,d3885d48,c06633e1,311,0) at vm_pageout+0x31b
fork_exit(c05ecee0,0,d3885d48) at fork_exit+0xb4
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xd3885d7c, ebp = 0 ---
Pete...
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