lang: en

FreeBSD lock order reversal (LOR) #127

ID 127
state unknown
responsible
reported first
reported last
do you know more? submit update by email
LOR
lock order reversal
 1st 0xc08e8c80 UMA lock (UMA lock) @ sys/vm/uma_core.c:1494
 2nd 0xc1060144 system map (system map) @ sys/vm/vm_map.c:2317
		
KDB: stack backtrace:
witness_checkorder(c1060144,9,c081a48c,90d,9d6) at witness_checkorder+0x526
_mtx_lock_flags(c1060144,0,c081a48c,90d,c21ae000) at _mtx_lock_flags+0x54
_vm_map_lock(c10600c0,c081a48c,90d,0,c1044500) at _vm_map_lock+0x35
vm_map_remove(c10600c0,c21ae000,c21af000,2df,c08195ca) at vm_map_remove+0x32
zone_drain(c103f000,8,c08195ca,5d6,c085f2c0) at zone_drain+0x27b
zone_foreach(29e,c081b9a6,cca47d00,c07519d7,c154fa0c) at zone_foreach+0x4a
uma_reclaim(c154fa0c,0,c081b9a6,29e,1388) at uma_reclaim+0x1b
vm_pageout(0,cca47d38,c0801d74,30d,0) at vm_pageout+0x3c7
fork_exit(c0751610,0,cca47d38) at fork_exit+0xa4
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xcca47d6c, ebp = 0 ---
		
comments/references