ppanic: pmap_unwire: invalid PDE Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 394166 708 32767 0x10 0 0 syz-executor.7 *312369 708 32767 0x10 0x4000000 1K syz-executor.7 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8296cb41) at panic+0x17b sys/kern/subr_prf.c:198 pmap_unwire(fffffd806ba8bda0,20000000) at pmap_unwire+0x1d9 sys/arch/amd64/amd64/pmap.c:2225 uvm_fault_unwire_locked(fffffd807f004000,20000000,20001000) at uvm_fault_unwire_locked+0x20c sys/uvm/uvm_fault.c:1691 uvm_fault_unwire(fffffd807f004000,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a171018,ffff80002a20a990,ffff80002a20a8e0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002a20a990) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a20a990) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc2681ac21e0, count: 7 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic cpu0: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_vnode.c", line 953 *cpu1: pmap_unwire: invalid PDE ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8296cb41) at panic+0x17b sys/kern/subr_prf.c:198 pmap_unwire(fffffd806ba8bda0,20000000) at pmap_unwire+0x1d9 sys/arch/amd64/amd64/pmap.c:2225 uvm_fault_unwire_locked(fffffd807f004000,20000000,20001000) at uvm_fault_unwire_locked+0x20c sys/uvm/uvm_fault.c:1691 uvm_fault_unwire(fffffd807f004000,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a171018,ffff80002a20a990,ffff80002a20a8e0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002a20a990) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a20a990) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc2681ac21e0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a20a630 rbx 0xffff800029ceccb7 rdx 0 rcx 0xffff80002a171018 rax 0xffff800029cebff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xbba8b13a5011b502 r11 0x7b558be6e04c32af r12 0xffff800029cecab8 r13 0 r14 0 r15 0x1 rip 0xffffffff819322cc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a20a620 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.7) tid=312369 pid=708 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=78, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a1722b0,0xffff80002a171d70 process=0xffff8000fffed650 user=0xffff80002a205000, vmspace=0xfffffd807f004000 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 47404 1268 65786 32767 3 0x90 nanoslp syz-executor.0 47404 214944 65786 32767 3 0x4000090 fsleep syz-executor.0 47404 192321 65786 32767 2 0x4000010 syz-executor.0 47404 162126 65786 32767 3 0x4000090 fsleep syz-executor.0 54017 460521 43149 32767 2 0x10 syz-executor.4 54017 316855 43149 32767 3 0x4000090 fsleep syz-executor.4 71533 302509 80148 32767 2 0x10 syz-executor.1 31924 460881 12523 32767 2 0x10 syz-executor.2 31924 282976 12523 32767 3 0x4000090 fsleep syz-executor.2 13750 383770 31310 32767 2 0x10 syz-executor.6 13750 92303 31310 32767 3 0x4000090 fsleep syz-executor.6 13750 474209 31310 32767 3 0x4000090 fsleep syz-executor.6 708 394166 90720 32767 7 0x10 syz-executor.7 708 197932 90720 32767 3 0x4000090 fsleep syz-executor.7 * 708 312369 90720 32767 7 0x4000010 syz-executor.7 708 228170 90720 32767 2 0x4000010 syz-executor.7 65786 449325 94492 32767 3 0x90 nanoslp syz-executor.0 94492 64709 90024 0 3 0x82 wait syz-executor.0 90720 262079 20160 32767 3 0x90 nanoslp syz-executor.7 20160 226611 90024 0 3 0x82 wait syz-executor.7 43149 504274 57995 32767 3 0x90 nanoslp syz-executor.4 57995 13660 90024 0 3 0x82 wait syz-executor.4 57615 83438 53051 32767 2 0x10 syz-executor.3 53051 275365 90024 0 3 0x82 wait syz-executor.3 71830 302311 0 0 3 0x14200 bored sosplice 31310 166875 53955 32767 3 0x90 nanoslp syz-executor.6 93962 72225 47945 32767 3 0x90 nanoslp syz-executor.5 53955 281289 90024 0 3 0x82 wait syz-executor.6 47945 450718 90024 0 3 0x82 wait syz-executor.5 12523 386041 10705 32767 3 0x90 nanoslp syz-executor.2 80148 179343 56709 32767 3 0x90 nanoslp syz-executor.1 10705 215499 90024 0 3 0x82 wait syz-executor.2 56709 22346 90024 0 3 0x82 wait syz-executor.1 90024 519361 83943 0 3 0x2000082 wait syz-fuzzer 90024 81885 83943 0 3 0x6000082 thrsleep syz-fuzzer 90024 78734 83943 0 3 0x6000082 thrsleep syz-fuzzer 90024 159348 83943 0 3 0x6000082 wait syz-fuzzer 90024 449751 83943 0 3 0x6000082 wait syz-fuzzer 90024 121366 83943 0 3 0x6000082 kqread syz-fuzzer 90024 449741 83943 0 3 0x6000082 wait syz-fuzzer 90024 198113 83943 0 3 0x6000082 thrsleep syz-fuzzer 90024 326943 83943 0 3 0x6000082 thrsleep syz-fuzzer 90024 477003 83943 0 3 0x6000082 wait syz-fuzzer 90024 440747 83943 0 3 0x6000082 thrsleep syz-fuzzer 90024 78050 83943 0 3 0x6000082 thrsleep syz-fuzzer 90024 396760 83943 0 3 0x6000082 wait syz-fuzzer 90024 426018 83943 0 3 0x6000082 thrsleep syz-fuzzer 90024 456336 83943 0 3 0x6000082 wait syz-fuzzer 90024 291888 83943 0 3 0x6000082 wait syz-fuzzer 83943 490245 72149 0 3 0x10008a sigsusp ksh 72149 150160 49864 0 3 0x9a kqread sshd 17358 320360 1 0 3 0x100083 ttyin getty 49864 392432 1 0 3 0x88 kqread sshd 46931 248616 35757 73 3 0x1100090 kqread syslogd 35757 305872 1 0 3 0x100082 netio syslogd 85804 492609 1 0 3 0x100080 kqread resolvd 25224 521279 15255 77 3 0x100092 kqread dhcpleased 36363 60426 15255 77 3 0x100092 kqread dhcpleased 15255 85922 1 0 3 0x80 kqread dhcpleased 79666 449290 0 0 3 0x14200 bored smr 26059 64134 0 0 2 0x14200 zerothread 59080 9699 0 0 3 0x14200 aiodoned aiodoned 21048 428770 0 0 3 0x14200 syncer update 29705 197551 0 0 3 0x14200 cleaner cleaner 63696 108657 0 0 3 0x14200 reaper reaper 74716 88180 0 0 3 0x14200 pgdaemon pagedaemon 84679 233119 0 0 3 0x14200 bored viomb 25337 4655 0 0 3 0x40014200 acpi0 acpi0 16740 55297 0 0 3 0x40014200 idle1 34034 38629 0 0 3 0x14200 bored softnet3 69896 54363 0 0 3 0x14200 bored softnet2 83537 287115 0 0 3 0x14200 bored softnet1 81465 177529 0 0 3 0x14200 bored softnet0 44365 236595 0 0 3 0x14200 bored systqmp 89749 181538 0 0 3 0x14200 bored systq 93342 266066 0 0 3 0x14200 tmoslp softclockmp 97079 341298 0 0 3 0x40014200 tmoslp softclock 78328 433459 0 0 3 0x40014200 idle0 1 368262 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 708 (syz-executor.7) thread 0xffff80002a22ad38 (394166) shared rwlock vmmaplk r = 0 (0xfffffd807f0040f8) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 708 (syz-executor.7) thread 0xffff80002a171018 (312369) exclusive rwlock uobjlk r = 0 (0xfffffd80642427c0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 uvm_fault_unwire_locked+0x1d6 sys/uvm/uvm_fault.c:1682 #3 uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 #4 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #5 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #5 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e2c380) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 rw_enter+0x341 sys/kern/kern_rwlock.c:285 #5 uvm_fault_unwire_locked+0x1d6 sys/uvm/uvm_fault.c:1682 #6 uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 #7 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd807f0040f8) #0 witness_lock+0x447 #1 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #2 sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 #3 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82cb2bb0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 sys_sysctl+0x1c3 sys/kern/kern_sysctl.c:238 #3 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 708 (syz-executor.7) thread 0xffff80002a171d60 (228170) exclusive rrwlock inode r = 0 (0xfffffd8067c02f80) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 sys_ftruncate+0x12e sys/kern/vfs_syscalls.c:2872 #6 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #6 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10183 6408K 6419K 166960K 11285 0 pcb 15 16K 18K 166960K 21 0 rtable 242 6K 7K 166960K 897 0 pf 29 8K 8K 166960K 45 0 ifaddr 44 15K 15K 166960K 80 0 ifgroup 50 2K 2K 166960K 82 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 80 0 ioctlops 0 0K 2K 166960K 87 0 iov 0 0K 32K 166960K 740 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 2591 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 59 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1520 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 24 89K 121K 166960K 5417 0 sigio 0 0K 0K 166960K 244 0 proc 56 78K 103K 166960K 1015 0 subproc 104 6K 6K 166960K 208 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 650 0 in_multi 99 7K 7K 166960K 259 0 ether_multi 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 1059 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 400 91K 95K 166960K 55481 0 UVM aobj 131 4K 6K 166960K 138 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 148 0 NDP 11 0K 2K 166960K 51 0 temp 74 6772K 6840K 166960K 16444 0 kqueue 12 18K 26K 166960K 583 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 360 0 357 4 3 1 4 0 8 0 rtentry 112 212 0 98 4 0 4 4 0 8 0 unpcb 144 4676 0 4596 47 41 6 6 0 8 3 syncache 320 108 0 108 13 12 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 331 0 331 14 13 1 1 0 8 1 tcpcb 808 2944 0 2914 58 48 10 11 0 8 4 arp 120 35 0 17 1 0 1 1 0 8 0 ipq 40 78 0 78 5 4 1 1 0 8 1 ipqe 40 204 0 204 5 4 1 1 0 8 1 inpcb 376 5529 0 5496 77 66 11 21 0 8 4 nd6 136 60 0 32 3 1 2 2 0 8 0 kcovpl 48 16 0 8 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 835 0 372 30 1 29 30 0 8 0 art_table 32 836 0 372 4 0 4 4 0 8 0 art_node 16 211 0 107 1 0 1 1 0 8 0 semapl 112 1518 0 1508 1 0 1 1 0 8 0 shmpl 112 135 0 7 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8684 0 7229 92 0 92 92 0 8 0 ffsino 272 8684 0 7229 98 0 98 98 0 8 0 nchpl 144 15801 0 14158 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 52130 0 52130 2 1 1 2 0 8 1 percpumem 16 54 0 8 1 0 1 1 0 8 0 kstatmem 264 38 0 16 2 0 2 2 0 8 0 scxspl 216 44889 0 44889 26 25 1 8 1 8 1 plimitpl 152 1329 0 1306 11 9 2 2 0 8 1 sigapl 424 5699 0 5643 7 0 7 7 0 8 0 futexpl 64 44038 0 44031 1 0 1 1 0 8 0 knotepl 120 654 0 0 17 0 17 17 0 8 0 kqueuepl 216 1573 0 1565 34 29 5 6 0 8 4 pipepl 320 1134 0 1106 31 23 8 8 0 8 5 fdescpl 496 5680 0 5645 7 1 6 6 0 8 0 filepl 152 36630 0 36326 77 62 15 19 0 8 3 lockfpl 104 483 0 481 1 0 1 1 0 8 0 lockfspl 48 182 0 180 1 0 1 1 0 8 0 sessionpl 144 31 0 15 1 0 1 1 0 8 0 pgrppl 48 236 0 220 1 0 1 1 0 8 0 ucredpl 104 6165 0 6147 1 0 1 1 0 8 0 zombiepl 144 5645 0 5643 1 0 1 1 0 8 0 processpl 1136 5699 0 5643 5 0 5 5 0 8 0 procpl 680 15301 0 15220 11 3 8 9 0 8 0 sosppl 168 147 0 144 4 3 1 1 0 8 0 sockpl 584 11100 0 10984 92 78 14 21 0 8 5 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 13 0 0 1 0 1 1 0 8 0 mcl8k 8192 24 0 0 3 0 3 3 0 8 0 mcl4k 4096 22 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 305 0 0 36 4 32 36 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 10518 0 0 652 0 652 652 0 8 0 bufpl 280 12087 0 5770 452 0 452 452 0 8 0 anonpl 24 680100 0 668243 137 50 87 99 0 186 0 amapchunkpl 152 176825 0 175915 71 31 40 44 0 158 1 amappl16 200 14179 0 13833 73 53 20 32 0 8 0 amappl15 192 14 0 14 3 3 0 1 0 8 0 amappl14 184 176 0 164 2 1 1 2 0 8 0 amappl13 176 27 0 26 1 0 1 1 0 8 0 amappl12 168 6527 0 6491 3 1 2 2 0 8 0 amappl11 160 65 0 54 1 0 1 1 0 8 0 amappl10 152 61 0 45 1 0 1 1 0 8 0 amappl9 144 198 0 196 1 0 1 1 0 8 0 amappl8 136 422 0 314 4 0 4 4 0 8 0 amappl7 128 212 0 189 2 0 2 2 0 8 0 amappl6 120 446 0 432 1 0 1 1 0 8 0 amappl5 112 216 0 208 1 0 1 1 0 8 0 amappl4 104 641 0 612 2 1 1 2 0 8 0 amappl3 96 34825 0 34724 12 8 4 4 0 8 1 amappl2 88 6460 0 6376 3 1 2 3 0 8 0 amappl1 80 28417 0 27893 22 10 12 22 0 8 0 amappl 88 54661 0 54402 7 0 7 7 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 72 137 0 7 3 0 3 3 0 8 0 uaddrrnd 24 5680 0 5645 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5680 0 5645 1 0 1 1 0 8 0 vmmpekpl 168 47048 0 46991 4 0 4 4 0 8 0 vmmpepl 168 347894 0 345424 209 95 114 133 0 357 1 vmsppl 448 5679 0 5645 5 0 5 5 0 8 0 rwobjpl 56 96082 0 88610 112 5 107 109 0 8 0 pdppl 4096 11367 0 11290 277 196 81 93 0 8 4 pvpl 32 41581 0 0 336 0 336 336 0 265 0 pmappl 248 5679 0 5645 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1372 0 333 30 0 30 30 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82d32ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82e2c178) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e2c178) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 cnputc(70) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff8293171e) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff828a5677) at panic+0xdb sys/kern/subr_prf.c:216 __assert(ffffffff8292e7e3,ffffffff829567c9,3b9,ffffffff82884c9c) at __assert+0x29 sys/kern/subr_prf.c:157 uvn_get(fffffd8068563b58,0,ffff8000359781f0,ffff800035978064,2,2,5a64a574090e25ff,fffffd8068563b58) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952 uvm_fault_lower_lookup(ffff800035978270,ffff8000359782a8,ffff8000359781f0) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1128 end trace frame: 0xffff800035978160, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82d32ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82e2c178) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e2c178) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 cnputc(70) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff8293171e) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff828a5677) at panic+0xdb sys/kern/subr_prf.c:216 __assert(ffffffff8292e7e3,ffffffff829567c9,3b9,ffffffff82884c9c) at __assert+0x29 sys/kern/subr_prf.c:157 uvn_get(fffffd8068563b58,0,ffff8000359781f0,ffff800035978064,2,2,5a64a574090e25ff,fffffd8068563b58) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952 uvm_fault_lower_lookup(ffff800035978270,ffff8000359782a8,ffff8000359781f0) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1128 uvm_fault_lower(ffff800035978270,ffff8000359782a8,ffff8000359781f0,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227 uvm_fault(fffffd807f004000,20002000,0,2) at uvm_fault+0x238 upageflttrap(ffff8000359783f0,20002bb0) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff8000359783f0) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x731c54bda8f0, count: -19 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8296cb41) at panic+0x17b sys/kern/subr_prf.c:198 pmap_unwire(fffffd806ba8bda0,20000000) at pmap_unwire+0x1d9 sys/arch/amd64/amd64/pmap.c:2225 uvm_fault_unwire_locked(fffffd807f004000,20000000,20001000) at uvm_fault_unwire_locked+0x20c sys/uvm/uvm_fault.c:1691 uvm_fault_unwire(fffffd807f004000,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a171018,ffff80002a20a990,ffff80002a20a8e0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002a20a990) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a20a990) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc2681ac21e0, count: 7 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8296cb41) at panic+0x17b sys/kern/subr_prf.c:198 pmap_unwire(fffffd806ba8bda0,20000000) at pmap_unwire+0x1d9 sys/arch/amd64/amd64/pmap.c:2225 uvm_fault_unwire_locked(fffffd807f004000,20000000,20001000) at uvm_fault_unwire_locked+0x20c sys/uvm/uvm_fault.c:1691 uvm_fault_unwire(fffffd807f004000,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a171018,ffff80002a20a990,ffff80002a20a8e0) at sys_sysctl+0x239 sys/kern/kern_sysctl.c:259 syscall(ffff80002a20a990) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a20a990) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc2681ac21e0, count: -8