5.2-CURRENT crashes everyday

Hello all

 well i have a real big problem it is the server with 5.2-current.
Harware is IBM eServer 345 Dual Xeon with serveRAID 6i, raid controller
has no support under STABLE thus i had no choice :(
 There are apache and sendmail on the server, load averages about 0.01,
but it crashes everyday and i have no idea how to force it work.
 The only messages before it goes down is

lock order reversal
 1st 0xc6574738 vm object (vm object) _at_ /usr/src/sys/vm/swap_pager.c:1311
 2nd 0xc0673ae0 swap_pager swhash (swap_pager swhash) _at_ /usr/src/sys/vm/swap_pager.c:1797
 3rd 0xc0c43a50 vm object (vm object) _at_ /usr/src/sys/vm/uma_core.c:925
Stack backtrace:
backtrace(0,1,c064cf90,c064e0c0,c06194dc) at backtrace+0x12
witness_checkorder(c0c43a50,9,c05fe7bf,39d) at witness_checkorder+0x53b
_mtx_lock_flags(c0c43a50,0,c05fe7bf,39d,c350b288) at _mtx_lock_flags+0x57
obj_alloc(c3502dc0,1000,de086a2b,101,de086a38) at obj_alloc+0x31
slab_zalloc(c3502dc0,1,c3502dc0,c3502dc0,c350b280) at slab_zalloc+0x87
uma_zone_slab(c3502dc0,1,c350b288,0,c05fe7bf,79c) at uma_zone_slab+0xb0
uma_zalloc_internal(c3502dc0,0,1,c350b288,0) at uma_zalloc_internal+0x29
uma_zalloc_arg(c3502dc0,0,1) at uma_zalloc_arg+0x2a2
swp_pager_meta_build(c6574738,5e,0,2,0) at swp_pager_meta_build+0x108
swap_pager_putpages(c6574738,de086bf0,1,0,de086b60) at swap_pager_putpages+0x2a8
default_pager_putpages(c6574738,de086bf0,1,0,de086b60) at default_pager_putpages+0x18
vm_pageout_flush(de086bf0,1,0,c064c6e0,2ff) at vm_pageout_flush+0x112
vm_pageout_clean(c2ca1f88) at vm_pageout_clean+0x2a5
vm_pageout_scan(0,c0673fe0,0,c05fe55f,5a7) at vm_pageout_scan+0x543
vm_pageout(0,de086d48,0,c057f0e4,0) at vm_pageout+0x2cf
fork_exit(c057f0e4,0,de086d48) at fork_exit+0x98
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xde086d7c, ebp = 0 ---

 Kernel config and dmesg  are attached.

Appreciate any comments or feedback on this.

--
BR, Andrew