panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *342259 8948 32767 0x10 0x4000000 0K syz-executor 335255 95762 32767 0x10000010 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834077f3) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bdea030,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806bdea030,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(49,ffff8000398e4178,4,400000000100,ffff8000398e41a8,0,29f92b479cccaee0,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(49,ffff8000398e4178,4,400000000100,ffff8000398e41a8,0,29f92b479cccaee0,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff8000398e4174,5,400000000100,ffff8000398e41a8,0,37,2d40c5cba8785641) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff4548,ffff8000398e42e0,ffff8000398e4230) at sys_sysctl+0x425 syscall(ffff8000398e42e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398e42e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e3b14ba5a0, 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(ffffffff834077f3) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bdea030,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806bdea030,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(49,ffff8000398e4178,4,400000000100,ffff8000398e41a8,0,29f92b479cccaee0,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(49,ffff8000398e4178,4,400000000100,ffff8000398e41a8,0,29f92b479cccaee0,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff8000398e4174,5,400000000100,ffff8000398e41a8,0,37,2d40c5cba8785641) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff4548,ffff8000398e42e0,ffff8000398e4230) at sys_sysctl+0x425 syscall(ffff8000398e42e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398e42e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e3b14ba5a0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000398e3d80 rbx 0xffffffff837f1dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff8000ffff4548 rax 0xffffffff837f0ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xcd16550774e60674 r11 0xb5a1808dbfa6de00 r12 0xffffffff837f1bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff81884775 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000398e3d70 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=342259 pid=8948 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=59, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff54a8,0xffff8000ffff7c60 process=0xffff8000ffff04b8 user=0xffff8000398df000, vmspace=0xfffffd806bdea030 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 35526 443050 26934 32767 2 0x10 syz-executor 8948 448835 63140 32767 2 0x10 syz-executor 8948 203662 63140 32767 3 0x4000090 fsleep syz-executor * 8948 342259 63140 32767 7 0x4000010 syz-executor 49120 282767 73131 32767 2 0x10 syz-executor 49120 129775 73131 32767 3 0x4000090 lockf syz-executor 49120 113337 73131 32767 3 0x4000090 semwait syz-executor 61038 209799 79295 32767 2 0x10 syz-executor 61038 245786 79295 32767 2 0x4000010 syz-executor 43022 60700 91949 32767 3 0x90 nanoslp syz-executor 43022 155879 91949 32767 3 0x4000090 kqread syz-executor 43022 304162 91949 32767 3 0x4000090 fsleep syz-executor 42743 493409 64826 32767 3 0x90 nanoslp syz-executor 42743 482271 64826 32767 3 0x4000090 ttyout syz-executor 42743 154739 64826 32767 3 0x4000090 fsleep syz-executor 26934 304947 94283 32767 3 0x90 nanoslp syz-executor 79295 213406 94183 32767 3 0x90 nanoslp syz-executor 95762 335255 6363 32767 7 0x10000010 syz-executor 91949 481808 20379 32767 3 0x90 nanoslp syz-executor 63140 47957 8510 32767 3 0x90 nanoslp syz-executor 73131 380025 31609 32767 3 0x90 nanoslp syz-executor 64826 43330 79686 32767 3 0x90 nanoslp syz-executor 71513 38869 6624 0 2 0 syz-executor 31609 458228 88739 0 3 0x82 wait syz-executor 6363 480579 88739 0 3 0x82 wait syz-executor 79686 360914 88739 0 3 0x82 wait syz-executor 20379 300107 88739 0 3 0x82 wait syz-executor 6624 267423 88739 0 3 0x82 wait syz-executor 94183 157466 88739 0 3 0x82 wait syz-executor 8510 332222 88739 0 3 0x82 wait syz-executor 94283 271245 88739 0 3 0x82 wait syz-executor 88739 243454 73829 0 3 0x82 kqread syz-executor 73829 354950 49748 0 3 0x10008a sigsusp ksh 49748 229889 23361 0 3 0x98 kqread sshd-session 23361 236863 31324 0 3 0x92 kqread sshd-session 86779 483919 1 0 3 0x100083 ttyin getty 31324 300341 1 0 3 0x88 kqread sshd 77533 126968 73288 73 3 0x1100090 kqread syslogd 73288 507214 1 0 3 0x100082 sbwait syslogd 8219 262634 1 0 3 0x100080 kqread resolvd 4532 282127 71181 77 3 0x100092 kqread dhcpleased 89158 259633 71181 77 3 0x100092 kqread dhcpleased 71181 295934 1 0 3 0x80 kqread dhcpleased 66961 508382 0 0 3 0x14200 bored smr 37522 396567 0 0 2 0x14200 zerothread 78046 89744 0 0 3 0x14200 aiodoned aiodoned 98235 6108 0 0 3 0x14200 syncer update 95298 348398 0 0 3 0x14200 cleaner cleaner 91434 314462 0 0 3 0x14200 reaper reaper 56464 486153 0 0 3 0x14200 pgdaemon pagedaemon 37617 508713 0 0 3 0x14200 bored viomb 88407 446558 0 0 3 0x40014200 acpi0 acpi0 74292 120000 0 0 3 0x40014200 idle1 7003 173452 0 0 3 0x14200 bored softnet3 21457 151417 0 0 3 0x14200 bored softnet2 74180 95936 0 0 3 0x14200 bored softnet1 65619 417680 0 0 3 0x14200 bored softnet0 78289 329883 0 0 3 0x14200 bored systqmp 75296 432419 0 0 3 0x14200 bored systq 32716 20670 0 0 3 0x14200 tmoslp softclockmp 66206 3162 0 0 3 0x40014200 tmoslp softclock 50887 203197 0 0 3 0x40014200 idle0 1 286787 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 8948 (syz-executor) thread 0xffff8000ffff4548 (342259) shared rwlock vmmaplk r = 0 (0xfffffd806bdea130) #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_unwire+0x3e sys/uvm/uvm_fault.c:1703 #3 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #3 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #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 (0xffffffff839d9e20) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sysctl_vslock+0x80 sys/kern/kern_sysctl.c:192 #2 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #3 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #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 exclusive rwlock sysctllk r = 0 (0xffffffff838012c8) #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 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10186 10954K 10966K 166960K 11265 0 pcb 17 12K 12K 166960K 17 0 rtable 234 6K 6K 166960K 344 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 29 0 iov 0 0K 4K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1333 84K 84K 166960K 1350 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 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 24 89K 125K 166960K 162 0 proc 64 103K 127K 166960K 483 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 5 0 in_multi 99 7K 7K 166960K 99 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 342 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 225 77K 77K 166960K 2750 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 45 90K 112K 166960K 1162 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 2 0 NDP 27 2K 2K 166960K 27 0 temp 35 8642K 8706K 166960K 3696 0 kqueue 14 22K 24K 166960K 28 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 33 0 30 1 0 1 1 0 8 0 rtentry 112 111 0 1 4 0 4 4 0 8 0 unpcb 144 52 0 32 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 808 11 0 7 1 0 1 1 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 376 76 0 67 2 0 2 2 0 8 0 nd6 136 24 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 256 453 0 0 29 0 29 29 0 8 0 art_table 32 454 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 semapl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1568 0 65 95 0 95 95 0 8 0 ffsino 280 1568 0 65 108 0 108 108 0 8 0 nchpl 144 1778 0 99 63 0 63 63 0 8 0 uvmvnodes 80 1649 0 0 34 0 34 34 0 8 0 vnodes 216 1649 0 0 92 0 92 92 0 8 0 namei 1024 5195 0 5195 1 0 1 1 0 8 1 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 5793 0 5793 5 1 4 4 1 8 4 plimitpl 152 37 0 12 2 0 2 2 0 8 1 sigapl 424 434 0 379 8 0 8 8 0 8 0 futexpl 64 314 0 311 1 0 1 1 0 8 0 knotepl 120 66 0 0 2 0 2 2 0 8 0 kqueuepl 216 23 0 13 1 0 1 1 0 8 0 pipepl 328 103 0 76 3 0 3 3 0 8 0 fdescpl 504 416 0 380 7 1 6 6 0 8 0 filepl 152 1414 0 1194 9 0 9 9 0 8 0 lockfpl 104 12 0 7 1 0 1 1 0 8 0 lockfspl 48 7 0 3 1 0 1 1 0 8 0 sessionpl 144 22 0 6 1 0 1 1 0 8 0 pgrppl 48 30 0 6 1 0 1 1 0 8 0 ucredpl 104 114 0 96 1 0 1 1 0 8 0 zombiepl 144 380 0 379 1 0 1 1 0 8 0 processpl 1176 434 0 379 5 0 5 5 0 8 0 procpl 656 468 0 404 6 0 6 6 0 8 0 sockpl 688 161 0 129 4 0 4 4 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 157 0 0 10 0 10 10 0 8 0 bufpl 280 2320 0 124 157 0 157 157 0 8 0 anonpl 24 98646 0 95610 23 0 23 23 0 184 1 amapchunkpl 152 8389 0 7895 22 0 22 22 0 158 1 amappl16 200 2000 0 1985 5 0 5 5 0 8 4 amappl15 192 5 0 5 1 0 1 1 0 8 1 amappl14 184 104 0 93 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 0 1 1 0 8 1 amappl12 168 1010 0 975 2 0 2 2 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 0 1 1 0 8 1 amappl9 144 249 0 248 1 0 1 1 0 8 0 amappl8 136 21 0 20 1 0 1 1 0 8 0 amappl7 128 105 0 95 1 0 1 1 0 8 0 amappl6 120 183 0 180 1 0 1 1 0 8 0 amappl5 112 115 0 109 1 0 1 1 0 8 0 amappl4 104 277 0 263 1 0 1 1 0 8 0 amappl3 96 1284 0 1169 4 0 4 4 0 8 0 amappl2 88 599 0 545 2 0 2 2 0 8 0 amappl1 80 7566 0 7035 14 0 14 14 0 8 0 amappl 88 2413 0 2237 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 416 0 380 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 416 0 380 1 0 1 1 0 8 0 vmmpekpl 168 5006 0 4973 2 0 2 2 0 8 0 vmmpepl 168 32264 0 30365 94 0 94 94 0 357 2 vmsppl 456 415 0 380 7 1 6 6 0 8 0 rwobjpl 64 13938 0 11484 42 0 42 42 0 8 0 pdppl 4096 840 0 760 108 10 98 98 0 8 18 pvpl 32 10685 0 0 87 0 87 87 0 265 0 pmappl 248 415 0 380 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 277 0 13 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(ffffffff834077f3) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bdea030,400000000000,400000001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1741 uvm_fault_unwire(fffffd806bdea030,400000000000,400000001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 kern_sysctl_dirs(49,ffff8000398e4178,4,400000000100,ffff8000398e41a8,0,29f92b479cccaee0,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(49,ffff8000398e4178,4,400000000100,ffff8000398e41a8,0,29f92b479cccaee0,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff8000398e4174,5,400000000100,ffff8000398e41a8,0,37,2d40c5cba8785641) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff4548,ffff8000398e42e0,ffff8000398e4230) at sys_sysctl+0x425 syscall(ffff8000398e42e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398e42e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e3b14ba5a0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029aabff0) 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(ffffffff839d9c18) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839d9c18) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 timeout_barrier(ffff8000ffff6878) at timeout_barrier+0x297 timeout_del_barrier(ffff8000ffff6878) at timeout_del_barrier+0x133 sys/kern/kern_timeout.c:462 sleep_finish(2,1) at sleep_finish+0x317 sys/kern/kern_synch.c:432 sys_nanosleep(ffff8000ffff67d0,ffff8000390ddf70,ffff8000390ddec0) at sys_nanosleep+0x28a sys/kern/kern_time.c:303 syscall(ffff8000390ddf70) at syscallConnection to us-central1-ssh-serialport.googleapis.com closed by remote host.