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FreeBSD lock order reversal (LOR) #7

ID 7
state patched
responsible
reported first
reported last
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LOR
lock order reversal
 1st ... UMA lock (UMA lock) @ sys/vm/uma_core.c:1201
 2nd ... system map (system map) @ sys/vm/vm_map.c:2210
		
Stack backtrace:
backtrace(....) at backtrace+0x17
witness_lock(....) at wintess_lock+0x672
_mtx_lock_flags(....) at _mtx_lock_flags+0xba
_vm_map_lock(....) at _vm_map_lock+0x36
vm_map_remove(....) at vm_map_remove+0x30
kmem_free(....) at kmem_free+0x32
page_free(....) at page_free+0x3b
zone_drain(....) at zone_drain+0x2cf
zone_foreach(....) at zone_foreach+0x45
uma_reclaim(....) at uma_reclaim+0x17
vm_pageout_scan(....) at vm_pageout_scan+0x148
vm_pageout(....) at vm_pageout+0x31b
fork_exit(....) at fork_exit+0xb4
fork_trampoline(....) at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = ....., ebp = 0 ---
		
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