panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 357028 83330 0 0 0 0 syz-executor.1 *516218 76352 0 0 0x4000000 1 syz-executor.7 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8264c09f) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire_locked+0x311 sys/uvm/uvm_fault.c:1649 uvm_fault_unwire(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1610 sys_sysctl(ffff800021424d20,ffff800021466988,ffff8000214669d0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:253 syscall(ffff800021466a50) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800021466a50) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b7f03defe0, count: 8 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 *cpu1: uvm_fault_unwire_locked: address not in map ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8264c09f) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire_locked+0x311 sys/uvm/uvm_fault.c:1649 uvm_fault_unwire(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1610 sys_sysctl(ffff800021424d20,ffff800021466988,ffff8000214669d0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:253 syscall(ffff800021466a50) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800021466a50) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b7f03defe0, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800021466750 rbx 0xffff800020dd9b8f rdx 0 rcx 0 rax 0xffff800021424d20 r8 0x101010101010101 r9 0x8080808080808080 r10 0x742cd45da8074f58 r11 0xcfa2e915c15526d9 r12 0xffff800020dd9990 r13 0 r14 0 r15 0x1 rip 0xffffffff819d03e8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021466740 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.7) pid=516218 stat=onproc flags process=0 proc=4000000 pri=36, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff8000212e97a8,0xffff800021424550 process=0xffff8000213a7620 user=0xffff800021461000, vmspace=0xfffffd807dc4ea28 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99140 448008 6885 0 2 0 syz-executor.0 99140 97493 6885 0 2 0x4000000 syz-executor.0 99140 234696 6885 0 2 0x4000000 syz-executor.0 83330 357028 10356 0 7 0 syz-executor.1 83330 303390 10356 0 2 0x4000000 syz-executor.1 83330 376509 10356 0 3 0x4000080 fsleep syz-executor.1 76352 65062 45007 0 2 0 syz-executor.7 76352 276486 45007 0 3 0x4000080 fsleep syz-executor.7 *76352 516218 45007 0 7 0x4000000 syz-executor.7 19692 128624 72130 0 3 0x80 nanoslp syz-executor.3 19692 304663 72130 0 2 0x4000000 syz-executor.3 19692 81454 72130 0 3 0x4000080 fsleep syz-executor.3 25861 180042 36335 0 2 0 syz-executor.6 25861 234895 36335 0 2 0x4000000 syz-executor.6 25861 473725 36335 0 2 0x4000000 syz-executor.6 19329 157174 70509 0 2 0 syz-executor.5 78138 470035 77862 0 3 0x80 nanoslp syz-executor.4 78138 234789 77862 0 3 0x4000080 fsleep syz-executor.4 78138 336415 77862 0 2 0x4000000 syz-executor.4 36335 462365 41839 0 3 0x82 nanoslp syz-executor.6 72130 322727 41839 0 3 0x82 nanoslp syz-executor.3 10356 300055 41839 0 3 0x82 nanoslp syz-executor.1 45007 96749 41839 0 3 0x82 nanoslp syz-executor.7 77862 26929 41839 0 3 0x82 nanoslp syz-executor.4 97420 160605 41839 0 2 0x2 syz-executor.2 70509 251748 41839 0 3 0x82 nanoslp syz-executor.5 6885 348247 41839 0 3 0x82 nanoslp syz-executor.0 41839 138900 5633 0 3 0x82 thrsleep syz-execprog 41839 232962 5633 0 3 0x4000082 thrsleep syz-execprog 41839 426978 5633 0 3 0x4000082 kqread syz-execprog 41839 68649 5633 0 3 0x4000082 thrsleep syz-execprog 41839 284455 5633 0 3 0x4000082 thrsleep syz-execprog 41839 469742 5633 0 3 0x4000082 thrsleep syz-execprog 41839 513222 5633 0 3 0x4000082 thrsleep syz-execprog 41839 271601 5633 0 3 0x4000082 thrsleep syz-execprog 41839 479402 5633 0 3 0x4000082 thrsleep syz-execprog 5633 384595 47645 0 3 0x10008a sigsusp ksh 47645 515884 84511 0 3 0x9a kqread sshd 16002 119527 1 0 3 0x100083 ttyin getty 84511 418105 1 0 3 0x88 kqread sshd 15400 330761 58134 74 3 0x1100092 bpf pflogd 58134 454143 1 0 3 0x80 netio pflogd 75228 250401 3337 73 3 0x1100090 kqread syslogd 3337 137038 1 0 3 0x100082 netio syslogd 67895 22989 1 0 3 0x100080 kqread resolvd 97048 489405 8915 77 3 0x100092 kqread dhcpleased 59353 453608 8915 77 3 0x100092 kqread dhcpleased 8915 88500 1 0 3 0x80 kqread dhcpleased 98987 416216 0 0 3 0x14200 bored smr 38843 39980 0 0 2 0x14200 zerothread 71046 148708 0 0 3 0x14200 aiodoned aiodoned 54745 288302 0 0 3 0x14200 syncer update 99974 290150 0 0 3 0x14200 cleaner cleaner 78700 331864 0 0 3 0x14200 reaper reaper 20664 314910 0 0 3 0x14200 pgdaemon pagedaemon 89712 1777 0 0 3 0x14200 bored viomb 19324 419684 0 0 3 0x40014200 acpi0 acpi0 76439 231265 0 0 3 0x40014200 idle1 92138 503171 0 0 3 0x14200 bored softnet 46195 216274 0 0 3 0x14200 bored softnet 26637 32132 0 0 3 0x14200 bored softnet 73377 509180 0 0 3 0x14200 bored softnet 72201 224935 0 0 3 0x14200 bored systqmp 55909 88826 0 0 3 0x14200 bored systq 75386 70432 0 0 3 0x40014200 bored softclock 26801 361013 0 0 3 0x40014200 idle0 1 31689 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 76352 (syz-executor.7) thread 0xffff8000212e97a8 (276486) exclusive rwlock futex r = 0 (0xffffffff829a9610) #0 witness_lock+0x44d #1 sys_futex+0x5c sys/kern/sys_futex.c:107 #2 syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] #2 syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 #3 Xsyscall+0x128 Process 76352 (syz-executor.7) thread 0xffff800021424d20 (516218) shared rwlock vmmaplk r = 0 (0xfffffd807dc4ea40) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 uvm_fault_unwire+0x31 sys/uvm/uvm_fault.c:1609 #3 sys_sysctl+0x229 sys/kern/kern_sysctl.c:253 #4 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #4 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82af9610) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:415 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 rw_enter+0x35a sys/kern/kern_rwlock.c:286 #5 uvm_fault_unwire+0x31 sys/uvm/uvm_fault.c:1609 #6 sys_sysctl+0x229 sys/kern/kern_sysctl.c:253 #7 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #7 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #8 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff829d37f0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:232 #3 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #3 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10179 6474K 6474K 78643K 11272 0 pcb 13 8K 8K 78643K 13 0 rtable 234 6K 6K 78643K 377 0 ifaddr 87 17K 17K 78643K 100 0 counters 56 35K 35K 78643K 58 0 ioctlops 0 0K 4K 78643K 1488 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1180 74K 74K 78643K 1193 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 17 61K 93K 78643K 4983 0 proc 67 91K 128K 78643K 534 0 subproc 0 0K 0K 78643K 13 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 99 6K 6K 78643K 110 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 715 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 62K 78643K 8 0 UVM amap 181 73K 74K 78643K 36432 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 12 0K 2K 78643K 31 0 temp 56 4710K 4774K 78643K 13730 0 kqueue 12 18K 18K 78643K 34 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 35 0 32 1 0 1 1 0 8 0 rtentry 112 122 0 12 4 0 4 4 0 8 0 unpcb 144 47 0 32 1 0 1 1 0 8 0 syncache 296 8 0 8 2 2 0 1 0 8 0 tcpcb 768 12 0 9 1 0 1 1 0 8 0 arp 120 20 0 2 1 0 1 1 0 8 0 inpcb 368 72 0 66 1 0 1 1 0 8 0 nd6 48 27 0 3 2 1 1 1 0 8 0 kcovpl 48 1 0 1 1 1 0 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 pfstitem 24 32 0 21 1 0 1 1 0 8 0 pfstkey 120 32 0 21 1 0 1 1 0 8 0 pfstate 336 32 0 21 3 1 2 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 501 0 48 32 3 29 29 0 8 0 art_table 32 502 0 48 5 1 4 4 0 8 0 art_node 16 121 0 21 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6327 0 4889 90 0 90 90 0 8 0 ffsino 272 6327 0 4889 96 0 96 96 0 8 0 nchpl 144 11433 0 9748 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 26211 0 26211 3 2 1 2 0 8 1 percpumem 16 41 0 1 1 0 1 1 0 8 0 kstatmem 264 26 0 2 2 0 2 2 0 8 0 scxspl 216 35097 0 35097 10 9 1 8 0 8 1 plimitpl 152 28 0 13 1 0 1 1 0 8 0 sigapl 424 5312 0 5265 9 3 6 7 0 8 0 futexpl 64 11911 0 11907 2 1 1 1 0 8 0 knotepl 120 122 0 0 4 0 4 4 0 8 0 kqueuepl 216 30 0 22 1 0 1 1 0 8 0 pipepl 320 173 0 145 5 2 3 3 0 8 0 fdescpl 496 5295 0 5265 6 2 4 5 0 8 0 filepl 152 6768 0 6634 7 1 6 6 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 33 0 16 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 96 0 84 1 0 1 1 0 8 0 zombiepl 144 5265 0 5265 2 1 1 1 0 8 1 processpl 1064 5312 0 5265 4 0 4 4 0 8 0 procpl 672 14569 0 14502 10 4 6 7 0 8 0 sockpl 488 154 0 130 5 1 4 4 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 83 0 0 10 0 10 10 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 233 0 0 14 0 14 14 0 8 0 bufpl 288 8794 0 2462 453 0 453 453 0 8 0 anonpl 24 962099 0 956452 54 16 38 42 0 186 0 amapchunkpl 152 90182 0 89779 30 13 17 18 0 158 1 amappl16 200 9632 0 9516 12 5 7 7 0 8 0 amappl15 192 746 0 737 1 0 1 1 0 8 0 amappl14 184 614 0 609 2 1 1 1 0 8 0 amappl13 176 705 0 702 2 1 1 1 0 8 0 amappl12 168 1865 0 1858 3 2 1 1 0 8 0 amappl11 160 121 0 103 1 0 1 1 0 8 0 amappl10 152 39 0 35 1 0 1 1 0 8 0 amappl9 144 2123 0 2115 1 0 1 1 0 8 0 amappl8 136 631 0 600 2 0 2 2 0 8 0 amappl7 128 150 0 135 1 0 1 1 0 8 0 amappl6 120 1449 0 1436 3 2 1 2 0 8 0 amappl5 112 3106 0 3087 1 0 1 1 0 8 0 amappl4 104 1048 0 1022 3 2 1 2 0 8 0 amappl3 96 18476 0 18415 3 1 2 2 0 8 0 amappl2 88 2392 0 2352 3 1 2 2 0 8 0 amappl1 80 139589 0 138887 28 12 16 20 0 8 0 amappl 88 31483 0 31356 5 1 4 4 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 5295 0 5265 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5295 0 5265 1 0 1 1 0 8 0 vmmpekpl 168 43479 0 43447 2 0 2 2 0 8 0 vmmpepl 168 468672 0 466633 108 16 92 93 0 357 3 vmsppl 368 5294 0 5265 5 2 3 4 0 8 0 rwobjpl 56 138162 0 131174 106 7 99 99 0 8 0 pdppl 4096 10597 0 10530 131 62 69 83 0 8 2 pvpl 32 1842809 0 1833074 259 63 196 258 0 265 117 pmappl 248 5294 0 5265 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 849 0 73 23 0 23 23 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8296aff0) at x86_ipi_db+0x1a 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+0x23 spllower(ffffffff82aee1d8) at spllower+0xaf sys/arch/amd64/amd64/intr.c:729 sys_nanosleep(ffff8000212e9508,ffff80002141c8b0,ffff80002141c900) at sys_nanosleep+0x1f5 sys/kern/kern_time.c:298 syscall(ffff80002141c980) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002141c980) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbbe90, count: 8 ddb{0}> trace x86_ipi_db(ffffffff8296aff0) at x86_ipi_db+0x1a 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+0x23 spllower(ffffffff82aee1d8) at spllower+0xaf sys/arch/amd64/amd64/intr.c:729 sys_nanosleep(ffff8000212e9508,ffff80002141c8b0,ffff80002141c900) at sys_nanosleep+0x1f5 sys/kern/kern_time.c:298 syscall(ffff80002141c980) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002141c980) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbbe90, count: -7 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8264c09f) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire_locked+0x311 sys/uvm/uvm_fault.c:1649 uvm_fault_unwire(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1610 sys_sysctl(ffff800021424d20,ffff800021466988,ffff8000214669d0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:253 syscall(ffff800021466a50) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800021466a50) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b7f03defe0, count: 8 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8264c09f) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire_locked+0x311 sys/uvm/uvm_fault.c:1649 uvm_fault_unwire(fffffd807dc4ea28,20000000,20001000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1610 sys_sysctl(ffff800021424d20,ffff800021466988,ffff8000214669d0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:253 syscall(ffff800021466a50) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800021466a50) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b7f03defe0, count: -7