panic: mtx 0xffffffff839e22b0: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *474909 87426 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f5458) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839e22b0) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839e22b0) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd8007ca6a98) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8007ca6a98) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007ca6a98) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd807e3ccb50,0,ffff80003c459028,ffff80003c45900c,0,2,97476aaefa087d3c,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c459240,ffff80003c459278,ffff80003c4590c0,ffff80003c4590a8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c459240,ffff80003c459278,ffff80003c4591c0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806c4b7030,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4593d0,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4593d0) at usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x6fa1162e6990, 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 0xffffffff839e22b0: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f5458) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839e22b0) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839e22b0) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd8007ca6a98) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8007ca6a98) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007ca6a98) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd807e3ccb50,0,ffff80003c459028,ffff80003c45900c,0,2,97476aaefa087d3c,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c459240,ffff80003c459278,ffff80003c4590c0,ffff80003c4590a8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c459240,ffff80003c459278,ffff80003c4591c0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806c4b7030,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4593d0,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4593d0) at usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x6fa1162e6990, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c458d60 rbx 0xffffffff838b8dd7 cpu_info_full_primary+0x2dd7 rdx 0 rcx 0xffff80002a297498 rax 0xffffffff838b7ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x1bcb8baffd660760 r11 0xc36fc949c541a50 r12 0xffffffff838b8bd8 cpu_info_full_primary+0x2bd8 r13 0 r14 0 r15 0x1 rip 0xffffffff819ecef5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c458d50 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=474909 pid=87426 tcnt=3 stat=onproc flags process=10 proc=0 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff1c50,0xffff80002a296cf8 process=0xffff8000fffee200 user=0xffff80003c454000, vmspace=0xfffffd806c4b7030 estcpu=36, cpticks=1, pctcpu=0.0, user=1, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *87426 474909 25019 32767 7 0x10 syz-executor 87426 365432 25019 32767 3 0x4000010 uobjlk syz-executor 87426 301405 25019 32767 3 0x4000010 biowait syz-executor 8858 18617 73405 32767 3 0x90 nanoslp syz-executor 8858 294926 73405 32767 3 0x4000090 ttyin syz-executor 8858 387004 73405 32767 3 0x4000090 fsleep syz-executor 8858 423887 73405 32767 3 0x4000090 fsleep syz-executor 71955 108506 0 0 3 0x14200 bored sosplice 73405 192475 24422 32767 3 0x90 nanoslp syz-executor 35788 305984 26663 32767 3 0x90 wait syz-executor 65366 130051 672 32767 3 0x10 biowait syz-executor 85476 343150 18416 32767 3 0x90 wait syz-executor 5909 360334 22681 32767 3 0x90 nanoslp syz-executor 25019 183305 66275 32767 3 0x90 nanoslp syz-executor 53903 157329 22083 32767 3 0x90 nanoslp syz-executor 55340 439999 461 32767 3 0x90 wait syz-executor 672 15992 80542 0 3 0x82 wait syz-executor 26663 268282 80542 0 3 0x82 wait syz-executor 18416 307096 80542 0 3 0x82 wait syz-executor 24422 161138 80542 0 3 0x82 wait syz-executor 22681 95176 80542 0 3 0x82 wait syz-executor 66275 418348 80542 0 3 0x82 wait syz-executor 22083 496533 80542 0 3 0x82 wait syz-executor 461 246145 80542 0 3 0x82 wait syz-executor 80542 76894 72313 0 3 0x82 kqread syz-executor 72313 104071 17034 0 3 0x10008a sigsusp ksh 17034 359859 42537 0 3 0x98 kqread sshd-session 42537 69979 15987 0 3 0x92 kqread sshd-session 9704 255752 1 0 3 0x100083 ttyin getty 15987 327568 1 0 3 0x88 kqread sshd 93248 99863 93911 73 3 0x1100090 kqread syslogd 93911 59918 1 0 3 0x100082 sbwait syslogd 87834 195433 1 0 3 0x100080 kqread resolvd 98019 102911 54272 77 3 0x100092 kqread dhcpleased 20299 197960 54272 77 3 0x100092 kqread dhcpleased 54272 180679 1 0 3 0x80 kqread dhcpleased 74009 524251 0 0 3 0x14200 bored smr 99517 177132 0 0 3 0x14200 pgzero zerothread 19956 437435 0 0 3 0x14200 aiodoned aiodoned 9004 270542 0 0 3 0x14200 syncer update 11210 435185 0 0 3 0x14200 cleaner cleaner 33177 351577 0 0 3 0x14200 reaper reaper 2230 229081 0 0 3 0x14200 pgdaemon pagedaemon 21884 138591 0 0 3 0x14200 bored viomb 38539 296180 0 0 3 0x40014200 acpi0 acpi0 66268 230425 0 0 7 0x40014200 idle1 74553 390832 0 0 3 0x14200 bored softnet3 14176 190852 0 0 3 0x14200 bored softnet2 27490 470167 0 0 3 0x14200 bored softnet1 98332 348336 0 0 3 0x14200 bored softnet0 92335 115305 0 0 3 0x14200 bored systqmp 51509 183712 0 0 3 0x14200 bored systq 17447 270715 0 0 3 0x14200 tmoslp softclockmp 96169 40562 0 0 3 0x40014200 tmoslp softclock 99368 44211 0 0 3 0x40014200 idle0 1 470890 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839e22c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599 #9 recall_trap+0x8 Process 87426 (syz-executor) thread 0xffff80002a297498 (474909) exclusive rwlock uobjlk r = 0 (0xfffffd805b0121c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #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+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839e22c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599 #9 recall_trap+0x8 Process 87426 (syz-executor) thread 0xffff80002a296ce8 (365432) exclusive rwlock vmmaplk r = 0 (0xfffffd806c4b7130) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_map_clean+0x11b sys/uvm/uvm_map.c:4366 #4 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83995660) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #1 syscall+0xae6 sys/arch/amd64/amd64/trap.c:742 #2 Xsyscall+0x128 Process 87426 (syz-executor) thread 0xffff80002a297c48 (301405) exclusive rrwlock inode r = 0 (0xfffffd8063ece200) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c4 sys/kern/vfs_syscalls.c:2912 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #7 Xsyscall+0x128 Process 65366 (syz-executor) thread 0xffff8000ffff07d0 (130051) exclusive rrwlock inode r = 0 (0xfffffd8063ecef80) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ca34438) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10193 10956K 10967K 166960K 11271 0 pcb 17 12K 12K 166960K 17 0 rtable 237 6K 7K 166960K 374 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 4 1K 9K 166960K 10 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 43 0 iov 0 0K 20K 166960K 35 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1445 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 40 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 25 93K 125K 166960K 606 0 sigio 0 0K 0K 166960K 4 0 proc 64 103K 127K 166960K 564 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 83 0 in_multi 99 7K 7K 166960K 119 0 ether_multi 1 0K 0K 166960K 5 0 mrt 2 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 432 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 260 154K 170K 166960K 7363 0 UVM aobj 92 6K 6K 166960K 95 0 pinsyscall 46 92K 114K 166960K 1683 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 74 0 NDP 11 0K 2K 166960K 27 0 temp 75 8684K 8750K 166960K 5912 0 kqueue 14 20K 27K 166960K 133 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 169 0 166 4 1 3 3 0 8 2 rtentry 176 112 0 2 6 0 6 6 0 8 1 unpcb 144 455 0 438 4 2 2 4 0 8 1 syncache 336 14 0 14 1 0 1 1 0 8 1 tcpqe 32 3 0 3 1 0 1 1 0 8 1 tcpcb 736 321 0 314 8 1 7 7 0 8 6 arp 128 18 0 0 1 0 1 1 0 8 0 ipq 40 4 0 0 1 0 1 1 0 8 0 ipqe 40 8 0 2 1 0 1 1 0 8 0 inpcb 328 648 0 638 8 1 7 7 0 8 5 nd6 144 25 0 1 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 1 29 0 29 29 0 8 0 art_table 40 454 0 1 5 0 5 5 0 8 0 art_node 32 112 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 37 0 27 1 0 1 1 0 8 0 shmpl 112 92 0 3 3 0 3 3 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2265 0 759 95 0 95 95 0 8 0 ffsino 288 2265 0 759 108 0 108 108 0 8 0 nchpl 144 3131 0 1455 63 0 63 63 0 8 0 uvmvnodes 80 2346 0 0 48 0 48 48 0 8 0 vnodes 216 2346 0 0 131 0 131 131 0 8 0 namei 1024 10426 0 10425 2 1 1 2 0 8 0 percpumem 16 49 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 10038 0 10035 10 2 8 8 1 8 7 plimitpl 152 174 0 150 2 0 2 2 0 8 1 sigapl 424 898 0 842 8 0 8 8 0 8 0 knotepl 120 504 0 0 16 0 16 16 0 8 0 kqueuepl 224 294 0 284 5 0 5 5 0 8 4 pipepl 336 223 0 196 8 0 8 8 0 8 5 fdescpl 520 879 0 842 4 0 4 4 0 8 0 filepl 160 5095 0 4875 18 0 18 18 0 8 7 lockfpl 104 105 0 102 1 0 1 1 0 8 0 lockfspl 48 45 0 42 1 0 1 1 0 8 0 sessionpl 144 30 0 14 1 0 1 1 0 8 0 pgrppl 48 85 0 61 1 0 1 1 0 8 0 ucredpl 104 876 0 857 1 0 1 1 0 8 0 zombiepl 144 847 0 842 1 0 1 1 0 8 0 processpl 1240 898 0 842 5 0 5 5 0 8 0 procpl 656 1730 0 1669 7 0 7 7 0 8 0 sosppl 168 6 0 6 1 0 1 1 0 8 1 sockpl 728 1282 0 1252 13 3 10 13 0 8 5 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 1234 0 0 78 0 78 78 0 8 0 bufpl 280 3210 0 118 221 0 221 221 0 8 0 anonpl 32 13544 0 0 110 0 110 110 0 246 0 amapchunkpl 152 36942 0 36376 44 3 41 44 0 158 15 amappl16 200 3532 0 3505 32 17 15 27 0 8 11 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 119 0 109 1 0 1 1 0 8 0 amappl13 176 3 0 2 1 0 1 1 0 8 0 amappl12 168 1506 0 1469 2 0 2 2 0 8 0 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 26 0 25 1 0 1 1 0 8 0 amappl7 128 107 0 96 1 0 1 1 0 8 0 amappl6 120 180 0 177 1 0 1 1 0 8 0 amappl5 112 114 0 107 1 0 1 1 0 8 0 amappl4 104 324 0 309 1 0 1 1 0 8 0 amappl3 96 4509 0 4378 4 0 4 4 0 8 0 amappl2 88 681 0 625 2 0 2 2 0 8 0 amappl1 80 11988 0 11412 15 0 15 15 0 8 1 amappl 88 6582 0 6390 6 1 5 6 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 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 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 94 0 3 2 0 2 2 0 8 0 uaddrrnd 24 879 0 842 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 879 0 842 1 0 1 1 0 8 0 vmmpekpl 168 9477 0 9442 3 0 3 3 0 8 0 vmmpepl 168 64033 0 61911 115 0 115 115 0 357 12 vmsppl 480 878 0 842 7 1 6 6 0 8 0 rwobjpl 72 23102 0 19807 65 1 64 64 0 8 1 pdppl 4096 1765 0 1684 117 32 85 97 0 8 4 pvpl 32 22050 0 0 178 0 178 178 0 265 0 pmappl 256 878 0 842 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 477 0 37 13 0 13 13 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(ffffffff833f5458) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839e22b0) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839e22b0) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd8007ca6a98) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8007ca6a98) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007ca6a98) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd807e3ccb50,0,ffff80003c459028,ffff80003c45900c,0,2,97476aaefa087d3c,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c459240,ffff80003c459278,ffff80003c4590c0,ffff80003c4590a8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c459240,ffff80003c459278,ffff80003c4591c0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806c4b7030,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4593d0,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4593d0) at usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x6fa1162e6990, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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_x86.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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_x86.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5