panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 38594 72875 32767 0x10 0 1 syz-executor *256868 72875 32767 0x10 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83411c63) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bdfeae0,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_wire(fffffd806bdfeae0,400000000000,400000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1702 [inline] uvm_fault_wire(fffffd806bdfeae0,400000000000,400000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1684 sysctl_vslock(400000000000,10011) at sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 net_sysctl(ffff80003c565b94,3,400000000000,ffff80003c565bc8,0,0,fd24c1e8943b4de5) at net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 sys_sysctl(ffff80003c536f90,ffff80003c565d00,ffff80003c565c50) at sys_sysctl+0x425 syscall(ffff80003c565d00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c565d00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfb5ffdb0870, count: 6 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: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83411c63) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bdfeae0,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_wire(fffffd806bdfeae0,400000000000,400000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1702 [inline] uvm_fault_wire(fffffd806bdfeae0,400000000000,400000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1684 sysctl_vslock(400000000000,10011) at sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 net_sysctl(ffff80003c565b94,3,400000000000,ffff80003c565bc8,0,0,fd24c1e8943b4de5) at net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 sys_sysctl(ffff80003c536f90,ffff80003c565d00,ffff80003c565c50) at sys_sysctl+0x425 syscall(ffff80003c565d00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c565d00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfb5ffdb0870, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c5658f0 rbx 0xffffffff837e2dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff80003c536f90 rax 0xffffffff837e1ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x558e50f706d376a8 r11 0x195e63c3dc215d17 r12 0xffffffff837e2bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff82bd5905 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5658e0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=256868 pid=72875 tcnt=5 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c536d00,0xffff8000ffffacf8 process=0xffff80003acdf740 user=0xffff80003c560000, vmspace=0xfffffd806bdfeae0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51873 457027 97279 32767 2 0x10 syz-executor 51873 299419 97279 32767 3 0x4000090 fsleep syz-executor 72875 38594 35898 32767 7 0x10 syz-executor *72875 256868 35898 32767 7 0x4000010 syz-executor 72875 494013 35898 32767 2 0x4000010 syz-executor 72875 193291 35898 32767 3 0x4000090 fsleep syz-executor 72875 360047 35898 32767 2 0x4000010 syz-executor 98001 380502 2239 32767 2 0x10 syz-executor 98001 29985 2239 32767 3 0x4000090 fsleep syz-executor 73804 6204 59845 32767 2 0x10 syz-executor 2627 300269 52175 32767 2 0x10 syz-executor 2627 147630 52175 32767 3 0x4000090 fsleep syz-executor 90986 196061 0 0 3 0x14200 bored sosplice 43755 19532 79671 32767 2 0x400010 syz-executor 43755 428738 79671 32767 3 0x4400090 fsleep syz-executor 43755 426531 79671 32767 3 0x4400090 fsleep syz-executor 12220 374831 18289 32767 2 0x10 syz-executor 12220 226565 18289 32767 3 0x4000090 fifow syz-executor 12220 148176 18289 32767 3 0x4000090 kqsel syz-executor 12220 36359 18289 32767 3 0x4000090 fsleep syz-executor 79671 414975 33840 32767 2 0x10 syz-executor 35898 83404 10934 32767 3 0x90 nanoslp syz-executor 52175 261867 23873 32767 2 0x10 syz-executor 64250 333380 47970 32767 2 0x10000010 syz-executor 18289 504773 69342 32767 2 0x10 syz-executor 59845 237375 24863 32767 3 0x90 nanoslp syz-executor 2239 399931 93824 32767 2 0x10 syz-executor 97279 365230 94645 32767 3 0x90 nanoslp syz-executor 24863 241366 14404 0 3 0x82 wait syz-executor 47970 405353 14404 0 3 0x82 wait syz-executor 93824 407290 14404 0 3 0x82 wait syz-executor 69342 78275 14404 0 3 0x82 wait syz-executor 94645 189243 14404 0 3 0x82 wait syz-executor 23873 495550 14404 0 3 0x82 wait syz-executor 10934 250294 14404 0 3 0x82 wait syz-executor 33840 439304 14404 0 3 0x82 wait syz-executor 14404 10023 68543 0 3 0x82 kqread syz-executor 68543 326225 51882 0 3 0x10008a sigsusp ksh 51882 29550 3178 0 3 0x98 kqread sshd-session 3178 344867 7391 0 3 0x92 kqread sshd-session 18211 303589 1 0 3 0x100083 ttyin getty 7391 190292 1 0 3 0x88 kqread sshd 46875 263048 17605 73 3 0x1100090 kqread syslogd 17605 234653 1 0 3 0x100082 sbwait syslogd 17503 203308 1 0 3 0x100080 kqread resolvd 25033 157545 37729 77 3 0x100092 kqread dhcpleased 2606 30567 37729 77 3 0x100092 kqread dhcpleased 37729 498772 1 0 3 0x80 kqread dhcpleased 89806 50252 0 0 3 0x14200 bored smr 25368 188605 0 0 2 0x14200 zerothread 85625 389122 0 0 3 0x14200 aiodoned aiodoned 12417 302617 0 0 3 0x14200 syncer update 32456 163855 0 0 3 0x14200 cleaner cleaner 41993 451087 0 0 3 0x14200 reaper reaper 82458 514689 0 0 3 0x14200 pgdaemon pagedaemon 76053 316264 0 0 3 0x14200 bored viomb 10160 71141 0 0 3 0x40014200 acpi0 acpi0 34950 139669 0 0 3 0x40014200 idle1 35642 237110 0 0 3 0x14200 bored softnet3 77183 292115 0 0 3 0x14200 bored softnet2 67944 74687 0 0 3 0x14200 bored softnet1 20673 35015 0 0 3 0x14200 bored softnet0 57770 395414 0 0 3 0x14200 bored systqmp 46737 488895 0 0 3 0x14200 bored systq 2450 11906 0 0 3 0x14200 tmoslp softclockmp 9079 52341 0 0 3 0x40014200 tmoslp softclock 68930 292040 0 0 3 0x40014200 idle0 1 470007 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 72875 (syz-executor) thread 0xffff80003c536f90 (256868) shared rwlock vmmaplk r = 0 (0xfffffd806bdfebe0) #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_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_fault_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1701 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1684 #3 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 #4 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #5 sys_sysctl+0x425 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83981338) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:412 #4 rw_do_enter_read+0x2de sys/kern/kern_rwlock.c:385 #5 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #6 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:730 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:666 #8 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1681 #9 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 #10 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #11 sys_sysctl+0x425 #12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff837b44d8) #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 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:187 #3 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #4 sys_sysctl+0x425 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 10954K 10965K 166960K 11264 0 pcb 17 12K 12K 166960K 17 0 rtable 236 6K 6K 166960K 348 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 16K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1333 84K 84K 166960K 1418 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 5 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 25 93K 117K 166960K 184 0 proc 58 79K 103K 166960K 477 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 18 0 in_multi 99 7K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 346 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 241 74K 75K 166960K 2976 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 46 92K 108K 166960K 1179 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 5 0 NDP 17 0K 2K 166960K 27 0 temp 35 8678K 8742K 166960K 3784 0 kqueue 13 20K 26K 166960K 34 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 37 0 33 1 0 1 1 0 8 0 rtentry 160 112 0 1 5 0 5 5 0 8 0 unpcb 144 61 0 42 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 24 0 18 1 0 1 1 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 376 118 0 103 2 0 2 2 0 8 0 nd6 136 25 0 0 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 256 455 0 0 29 0 29 29 0 8 0 art_table 32 456 0 0 4 0 4 4 0 8 0 art_node 16 111 0 10 1 0 1 1 0 8 0 semapl 112 3 0 0 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1668 0 164 95 0 95 95 0 8 0 ffsino 280 1668 0 164 108 0 108 108 0 8 0 nchpl 144 1922 0 244 63 0 63 63 0 8 0 uvmvnodes 80 1749 0 0 36 0 36 36 0 8 0 vnodes 216 1749 0 0 98 0 98 98 0 8 0 namei 1024 5712 0 5712 2 0 2 2 0 8 2 percpumem 16 46 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6167 0 6167 3 1 2 2 1 8 2 plimitpl 152 39 0 14 2 0 2 2 0 8 1 sigapl 424 456 0 399 7 0 7 7 0 8 0 futexpl 64 664 0 657 1 0 1 1 0 8 0 knotepl 120 320 0 0 10 0 10 10 0 8 0 kqueuepl 216 36 0 26 1 0 1 1 0 8 0 pipepl 328 101 0 74 3 0 3 3 0 8 0 fdescpl 504 437 0 400 7 1 6 6 0 8 0 filepl 152 1742 0 1521 12 0 12 12 0 8 1 lockfpl 104 21 0 19 1 0 1 1 0 8 0 lockfspl 48 11 0 9 1 0 1 1 0 8 0 sessionpl 144 21 0 5 1 0 1 1 0 8 0 pgrppl 48 29 0 5 1 0 1 1 0 8 0 ucredpl 104 345 0 326 1 0 1 1 0 8 0 zombiepl 144 400 0 399 1 0 1 1 0 8 0 processpl 1176 456 0 399 5 0 5 5 0 8 0 procpl 656 539 0 470 7 0 7 7 0 8 1 sosppl 168 5 0 5 1 0 1 1 0 8 1 sockpl 688 218 0 179 4 0 4 4 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 14 0 0 2 0 2 2 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 167 0 0 11 0 11 11 0 8 0 bufpl 280 2422 0 124 165 0 165 165 0 8 0 anonpl 24 105882 0 102650 35 0 35 35 0 184 10 amapchunkpl 152 9297 0 8743 30 0 30 30 0 158 7 amappl16 200 2158 0 2139 5 0 5 5 0 8 3 amappl15 192 9 0 9 2 1 1 1 0 8 1 amappl14 184 98 0 88 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 0 1 1 0 8 1 amappl12 168 1033 0 996 2 0 2 2 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 6 0 6 2 2 0 1 0 8 0 amappl9 144 245 0 245 1 0 1 1 0 8 1 amappl8 136 29 0 27 1 0 1 1 0 8 0 amappl7 128 93 0 83 1 0 1 1 0 8 0 amappl6 120 171 0 168 1 0 1 1 0 8 0 amappl5 112 118 0 111 1 0 1 1 0 8 0 amappl4 104 280 0 266 1 0 1 1 0 8 0 amappl3 96 1403 0 1274 4 0 4 4 0 8 0 amappl2 88 590 0 537 2 0 2 2 0 8 0 amappl1 80 7431 0 6891 13 0 13 13 0 8 0 amappl 88 2641 0 2449 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 128 253 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 437 0 400 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 437 0 400 1 0 1 1 0 8 0 vmmpekpl 168 5038 0 5001 3 0 3 3 0 8 0 vmmpepl 168 33017 0 31039 91 0 91 91 0 357 2 vmsppl 456 436 0 400 7 1 6 6 0 8 0 rwobjpl 64 14278 0 11698 43 1 42 43 0 8 0 pdppl 4096 882 0 800 104 14 90 94 0 8 8 pvpl 32 14627 0 0 118 0 118 118 0 265 0 pmappl 248 436 0 400 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 276 0 17 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(ffffffff83411c63) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bdfeae0,400000000000,400000001000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_wire(fffffd806bdfeae0,400000000000,400000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1702 [inline] uvm_fault_wire(fffffd806bdfeae0,400000000000,400000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1684 sysctl_vslock(400000000000,10011) at sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 net_sysctl(ffff80003c565b94,3,400000000000,ffff80003c565bc8,0,0,fd24c1e8943b4de5) at net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 sys_sysctl(ffff80003c536f90,ffff80003c565d00,ffff80003c565c50) at sys_sysctl+0x425 syscall(ffff80003c565d00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c565d00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfb5ffdb0870, count: -9 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 __mp_lock(ffffffff83981130) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83981130) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000378c19d0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000378c19d0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7113ffa1c750, count: 9 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 __mp_lock(ffffffff83981130) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83981130) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000378c19d0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000378c19d0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7113ffa1c750, count: -6