panic: mtx 0xffffffff83932968: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *222161 88061 0 0 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833db81d) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83932968) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83932968) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8007fc4660) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8007fc4660) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007fc4660) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80632b8220,0,ffff80002a41dc58,ffff80002a41dc34,0,2,555944bbe1bd2c93,ffff80002a41deb0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002a41de78,ffff80002a41deb0,ffff80002a41dce0,ffff80002a41dce8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80002a41de78,ffff80002a41deb0,ffff80002a41ddf0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806eb67398,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a41e000,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a41e000) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7d6c9f558890, count: 2 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: mtx 0xffffffff83932968: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833db81d) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83932968) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83932968) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8007fc4660) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8007fc4660) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007fc4660) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80632b8220,0,ffff80002a41dc58,ffff80002a41dc34,0,2,555944bbe1bd2c93,ffff80002a41deb0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002a41de78,ffff80002a41deb0,ffff80002a41dce0,ffff80002a41dce8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80002a41de78,ffff80002a41deb0,ffff80002a41ddf0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806eb67398,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a41e000,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a41e000) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7d6c9f558890, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a41d9a0 rbx 0xffffffff837b1dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff80003c510550 rax 0xffffffff837b0ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc679a7caf815a195 r11 0x74415235397bf4d5 r12 0xffffffff837b1bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff817cf4e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a41d990 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=222161 pid=88061 tcnt=3 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c5114b0,0xffff80003c5119e0 process=0xffff80002a300938 user=0xffff80002a419000, vmspace=0xfffffd806eb67398 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *88061 222161 22986 0 7 0 syz-executor 88061 400839 22986 0 3 0x4000000 biowait syz-executor 88061 308163 22986 0 3 0x4000080 fsleep syz-executor 75049 144338 68891 0 3 0x80 nanoslp syz-executor 75049 173029 68891 0 3 0x4000080 kqpoll syz-executor 75049 490870 68891 0 3 0x4000080 fsleep syz-executor 3813 258177 0 0 3 0x14200 acct acct 12515 349934 16589 0 3 0x90 nanoslp syz-executor 12515 240422 16589 0 3 0x4000090 ttyin syz-executor 12515 385598 16589 0 3 0x4000090 fsleep syz-executor 53893 245407 61474 60928 3 0x90 nanoslp syz-executor 53893 71871 61474 60928 3 0x4000090 sbwait syz-executor 53893 202419 61474 60928 3 0x4000090 sbufrcv syz-executor 53497 171469 39445 0 3 0x80 nanoslp syz-executor 53497 452609 39445 0 3 0x4000080 kqsel syz-executor 53497 250451 39445 0 3 0x4000080 fifor syz-executor 53497 87805 39445 0 3 0x4000080 fsleep syz-executor 72633 112330 12488 0 3 0x80 nanoslp syz-executor 72633 321711 12488 0 3 0x4000080 semwait syz-executor 44491 310634 95650 0 3 0x82 nanoslp syz-executor 90813 383111 1 0 3 0x100083 ttyopn getty 61474 480934 95650 0 3 0x82 nanoslp syz-executor 16589 501604 95650 0 3 0x82 nanoslp syz-executor 22099 518492 0 0 3 0x14200 bored sosplice 39445 400331 95650 0 3 0x82 nanoslp syz-executor 50896 220924 95650 0 3 0x82 wait syz-executor 68891 308866 95650 0 3 0x82 nanoslp syz-executor 22986 392111 95650 0 3 0x82 nanoslp syz-executor 12488 198794 95650 0 3 0x82 nanoslp syz-executor 95650 220873 21893 0 3 0x82 kqread syz-executor 21893 507548 20773 0 3 0x10008a sigsusp ksh 20773 33786 30593 0 3 0x98 kqread sshd-session 30593 335114 20219 0 3 0x92 kqread sshd-session 20219 38363 1 0 3 0x88 kqread sshd 27041 139192 46590 74 3 0x1100092 bpf pflogd 46590 487714 1 0 3 0x80 sbwait pflogd 54938 156333 67086 73 3 0x1100090 kqread syslogd 67086 443831 1 0 3 0x100082 sbwait syslogd 80036 522543 1 0 3 0x100080 kqread resolvd 74568 188633 25029 77 3 0x100092 kqread dhcpleased 92389 281216 25029 77 3 0x100092 kqread dhcpleased 25029 317427 1 0 3 0x80 kqread dhcpleased 35983 22267 0 0 3 0x14200 bored smr 7378 227550 0 0 3 0x14200 pgzero zerothread 81706 216585 0 0 3 0x14200 aiodoned aiodoned 85254 94594 0 0 3 0x14200 syncer update 78033 516865 0 0 3 0x14200 cleaner cleaner 9292 263057 0 0 3 0x14200 reaper reaper 93325 19458 0 0 3 0x14200 pgdaemon pagedaemon 46821 151402 0 0 3 0x14200 bored viomb 65258 32758 0 0 3 0x40014200 acpi0 acpi0 97999 272004 0 0 7 0x40014200 idle1 10326 26071 0 0 3 0x14200 bored softnet3 93456 34294 0 0 3 0x14200 bored softnet2 69200 408908 0 0 3 0x14200 bored softnet1 75048 292374 0 0 3 0x14200 bored softnet0 50344 121018 0 0 3 0x14200 bored systqmp 54495 102646 0 0 3 0x14200 bored systq 32019 179518 0 0 3 0x14200 tmoslp softclockmp 80956 485017 0 0 3 0x40014200 tmoslp softclock 70180 497714 0 0 3 0x40014200 idle0 1 439285 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83932978) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 88061 (syz-executor) thread 0xffff80003c510550 (222161) exclusive rwlock uobjlk r = 0 (0xfffffd8076e2a458) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvn_io+0x667 sys/uvm/uvm_vnode.c:1297 #3 uvn_get+0x31d sys/uvm/uvm_vnode.c:1102 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83932978) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 88061 (syz-executor) thread 0xffff80003c5119d0 (400839) exclusive rrwlock inode r = 0 (0xfffffd806dde1cc0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c4 sys/kern/vfs_syscalls.c:2920 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 88061 (syz-executor) thread 0xffff8000ffffa2b0 (308163) exclusive rwlock futex r = 0 (0xffffffff8388b2d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sys_futex+0x69 sys/kern/sys_futex.c:98 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 53893 (syz-executor) thread 0xffff80003c510f90 (71871) exclusive rwlock sbufrcv r = 0 (0xffff8000014e0988) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sblock+0xb7 sys/kern/uipc_socket2.c:536 #3 soreceive+0x28e sys/kern/uipc_socket.c:881 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #5 sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10231 11123K 11367K 166960K 12328 0 pcb 18 12K 12K 166960K 116 0 rtable 216 7K 7K 166960K 532 0 pf 32 17K 20K 166960K 92 0 ifaddr 38 6K 7K 166960K 76 0 ifgroup 51 2K 2K 166960K 108 0 sysctl 2 1K 1K 166960K 2 0 counters 62 36K 37K 166960K 112 0 ioctlops 0 0K 4K 166960K 1697 0 iov 1 4K 16K 166960K 96 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1402 88K 88K 166960K 2205 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 169 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 838 0 sigio 0 0K 0K 166960K 42 0 proc 72 91K 140K 166960K 696 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 364 0 in_multi 85 6K 7K 166960K 149 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 552 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 269 164K 170K 166960K 9442 0 UVM aobj 53 7K 7K 166960K 56 0 pinsyscall 43 86K 102K 166960K 2052 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 31 0 NDP 11 0K 2K 166960K 50 0 temp 57 8686K 8753K 166960K 25735 0 kqueue 15 24K 34K 166960K 153 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 84 0 80 1 0 1 1 0 8 0 rtentry 168 164 0 67 5 0 5 5 0 8 0 unpcb 144 642 0 619 6 4 2 6 0 8 1 syncache 336 5 0 5 2 2 0 1 0 8 0 tcpcb 808 187 0 182 5 1 4 4 0 8 3 arp 120 28 0 8 1 0 1 1 0 8 0 inpcb 376 871 0 855 15 7 8 12 0 8 6 nd6 136 36 0 12 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 1 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1168 15 0 15 1 0 1 1 0 8 1 pppxif 1480 4 0 4 1 1 0 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 15 0 12 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfanchor 1288 1 0 1 1 1 0 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfstitem 24 63 0 15 1 0 1 1 0 8 0 pfstkey 128 63 0 15 2 0 2 2 0 8 0 pfstate 376 63 0 15 5 0 5 5 0 8 0 pfrule 1344 62 0 54 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 621 0 244 29 5 24 29 0 8 0 art_table 32 623 0 244 4 0 4 4 0 8 0 art_node 16 156 0 72 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semapl 112 166 0 157 1 0 1 1 0 8 0 shmpl 112 53 0 3 2 0 2 2 0 8 0 dirhash 1024 28 0 11 3 0 3 3 0 8 0 dino2pl 256 2985 0 1477 96 0 96 96 0 8 0 ffsino 280 2985 0 1477 109 0 109 109 0 8 0 nchpl 144 4118 0 2418 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 uvmvnodes 80 3503 0 0 72 0 72 72 0 8 0 vnodes 216 3503 0 0 195 0 195 195 0 8 0 namei 1024 15125 0 15125 2 1 1 2 0 8 1 percpumem 16 70 0 25 1 0 1 1 0 8 0 kstatmem 264 56 0 34 2 0 2 2 0 8 0 scsiplug 72 4 0 4 2 1 1 1 0 8 1 scxspl 216 14989 0 14987 10 7 3 8 1 8 2 plimitpl 152 121 0 102 1 0 1 1 0 8 0 sigapl 424 1150 0 1098 8 2 6 7 0 8 0 futexpl 64 10520 0 10516 1 0 1 1 0 8 0 knotepl 120 778 0 0 24 0 24 24 0 8 0 kqueuepl 216 466 0 453 7 2 5 5 0 8 4 pipepl 328 293 0 265 8 0 8 8 0 8 5 fdescpl 504 1128 0 1096 5 0 5 5 0 8 0 filepl 152 8014 0 7780 21 5 16 19 0 8 4 lockfpl 104 335 0 332 2 1 1 2 0 8 0 lockfspl 48 114 0 111 1 0 1 1 0 8 0 sessionpl 144 29 0 20 1 0 1 1 0 8 0 pgrppl 48 50 0 33 1 0 1 1 0 8 0 ucredpl 104 1408 0 1391 1 0 1 1 0 8 0 zombiepl 144 1100 0 1098 1 0 1 1 0 8 0 processpl 1176 1150 0 1098 5 0 5 5 0 8 0 procpl 656 2282 0 2218 7 1 6 6 0 8 0 srpgc 96 8 0 8 1 1 0 1 0 8 0 sosppl 168 9 0 9 2 1 1 1 0 8 1 sockpl 688 1608 0 1569 21 12 9 15 0 8 4 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 25 0 0 1 0 1 1 0 8 0 mbufpl 256 198 0 0 12 0 12 12 0 8 0 bufpl 280 5024 0 127 350 0 350 350 0 8 0 anonpl 24 184322 0 180640 49 2 47 47 0 184 9 amapchunkpl 152 29802 0 29221 30 3 27 27 0 158 4 amappl16 200 3728 0 3693 25 10 15 15 0 8 10 amappl15 192 8 0 7 1 0 1 1 0 8 0 amappl14 184 123 0 111 1 0 1 1 0 8 0 amappl13 176 33 0 33 1 1 0 1 0 8 0 amappl12 168 1836 0 1804 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 245 0 245 1 1 0 1 0 8 0 amappl8 136 27 0 22 1 0 1 1 0 8 0 amappl7 128 135 0 123 1 0 1 1 0 8 0 amappl6 120 216 0 213 1 0 1 1 0 8 0 amappl5 112 139 0 129 1 0 1 1 0 8 0 amappl4 104 351 0 330 1 0 1 1 0 8 0 amappl3 96 6044 0 5912 4 0 4 4 0 8 0 amappl2 88 725 0 663 2 0 2 2 0 8 0 amappl1 80 11763 0 11164 16 2 14 15 0 8 0 amappl 88 8538 0 8342 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 55 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1128 0 1096 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1128 0 1096 1 0 1 1 0 8 0 vmmpekpl 168 10835 0 10785 3 0 3 3 0 8 0 vmmpepl 168 76704 0 74622 103 2 101 101 0 357 10 vmsppl 456 1127 0 1096 5 0 5 5 0 8 0 rwobjpl 64 26056 0 21528 77 0 77 77 0 8 2 pdppl 4096 2264 0 2192 104 32 72 86 0 8 0 pvpl 32 15929 0 0 130 1 129 129 0 265 0 pmappl 248 1127 0 1096 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 286 0 44 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833db81d) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83932968) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83932968) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8007fc4660) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8007fc4660) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007fc4660) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80632b8220,0,ffff80002a41dc58,ffff80002a41dc34,0,2,555944bbe1bd2c93,ffff80002a41deb0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002a41de78,ffff80002a41deb0,ffff80002a41dce0,ffff80002a41dce8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80002a41de78,ffff80002a41deb0,ffff80002a41ddf0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806eb67398,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a41e000,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a41e000) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7d6c9f558890, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029a9bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029a9bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5