panic: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1643 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *498333 98423 32767 0x10 0x4000000 1K syz-executor.2 88655 98423 32767 0x10 0x4000000 0 syz-executor.2 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82576769) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ea40b,ffffffff82549618,66b,ffffffff82558d47) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff80002af32550,ffff800022c5aa08,ffff800022c5aa60) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff800022c5aad0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022c5aad0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8210529a950, 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 *cpu1: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1643 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82576769) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ea40b,ffffffff82549618,66b,ffffffff82558d47) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff80002af32550,ffff800022c5aa08,ffff800022c5aa60) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff800022c5aad0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022c5aad0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8210529a950, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800022c5a790 rbx 0xffff800020ce9bff rdx 0 rcx 0 rax 0xffff80002af32550 r8 0x101010101010101 r9 0x8080808080808080 r10 0x46180f8a5a7dfa60 r11 0xcbb8b399f0625942 r12 0xffff800020ce9a00 r13 0 r14 0 r15 0x1 rip 0xffffffff82285cc8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800022c5a780 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.2) pid=498333 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffef7a8,0xffff80002af33a60 process=0xffff8000ffff14e0 user=0xffff800022c55000, vmspace=0xfffffd8067bd5e78 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98423 376435 13375 32767 2 0x10 syz-executor.2 98423 521159 13375 32767 2 0x4000010 syz-executor.2 *98423 498333 13375 32767 7 0x4000010 syz-executor.2 98423 88655 13375 32767 7 0x4000010 syz-executor.2 37900 320817 15305 32767 2 0x10 syz-executor.1 37900 15239 15305 32767 3 0x4000090 netio syz-executor.1 80773 511345 13631 32767 2 0x10 syz-executor.6 77742 307704 91201 32767 2 0x10 syz-executor.7 77742 326104 91201 32767 3 0x4000090 fsleep syz-executor.7 51289 353336 31810 32767 2 0x4081010 syz-executor.4 51289 130196 31810 32767 3 0x4003010 suspend syz-executor.4 90513 69702 69426 32767 3 0x90 nanoslp syz-executor.3 90513 43807 69426 32767 3 0x4000090 ttyin syz-executor.3 90513 336645 69426 32767 3 0x4000090 fsleep syz-executor.3 13631 498522 70429 32767 3 0x90 nanoslp syz-executor.6 70429 294756 41455 0 3 0x82 wait syz-executor.6 31810 155307 92876 32767 3 0x90 nanoslp syz-executor.4 92876 147478 41455 0 3 0x82 wait syz-executor.4 91201 120833 37199 32767 3 0x90 nanoslp syz-executor.7 37199 299503 41455 0 3 0x82 wait syz-executor.7 15305 194211 20494 32767 3 0x90 nanoslp syz-executor.1 20494 167483 41455 0 3 0x82 wait syz-executor.1 13375 187324 60235 32767 3 0x90 nanoslp syz-executor.2 60235 168149 41455 0 3 0x82 wait syz-executor.2 37673 409961 0 0 3 0x14200 bored sosplice 39193 477677 25418 32767 3 0x90 piperd syz-executor.5 25418 329139 41455 0 3 0x82 wait syz-executor.5 69426 79271 3784 32767 3 0x90 nanoslp syz-executor.3 3784 313019 41455 0 3 0x82 wait syz-executor.3 41455 198365 78754 0 3 0x82 kqread syz-fuzzer 41455 99979 78754 0 3 0x4000082 thrsleep syz-fuzzer 41455 523900 78754 0 3 0x4000082 thrsleep syz-fuzzer 41455 473402 78754 0 3 0x4000082 thrsleep syz-fuzzer 41455 104464 78754 0 3 0x4000082 thrsleep syz-fuzzer 41455 337271 78754 0 3 0x4000082 thrsleep syz-fuzzer 41455 195543 78754 0 3 0x4000082 thrsleep syz-fuzzer 41455 203557 78754 0 3 0x4000082 thrsleep syz-fuzzer 41455 419294 78754 0 3 0x4000082 thrsleep syz-fuzzer 78754 163182 60571 0 3 0x10008a sigsusp ksh 60571 262579 49864 0 3 0x9a kqread sshd 46367 37286 1 0 3 0x100083 ttyin getty 49864 257590 1 0 3 0x88 kqread sshd 99469 506480 33824 73 3 0x1100090 kqread syslogd 33824 378088 1 0 3 0x100082 netio syslogd 17524 430366 1 0 3 0x100080 kqread resolvd 88777 112366 91429 77 3 0x100092 kqread dhcpleased 62110 406641 91429 77 3 0x100092 kqread dhcpleased 91429 179766 1 0 3 0x80 kqread dhcpleased 50068 493689 0 0 3 0x14200 bored smr 60298 309223 0 0 2 0x14200 zerothread 12591 10153 0 0 3 0x14200 aiodoned aiodoned 54448 341148 0 0 3 0x14200 syncer update 51138 222447 0 0 3 0x14200 cleaner cleaner 20338 121806 0 0 3 0x14200 reaper reaper 76443 312128 0 0 3 0x14200 pgdaemon pagedaemon 23001 513016 0 0 3 0x14200 bored viomb 29396 35115 0 0 3 0x40014200 acpi0 acpi0 61215 128925 0 0 3 0x40014200 idle1 59421 54981 0 0 3 0x14200 bored softnet 3169 104306 0 0 3 0x14200 bored systqmp 81421 21227 0 0 3 0x14200 bored systq 98400 201726 0 0 3 0x40014200 bored softclock 95233 321932 0 0 3 0x40014200 idle0 1 460485 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 98423 (syz-executor.2) thread 0xffff80002af32550 (498333) exclusive rwlock amaplk r = 0 (0xfffffd8079066de0) #0 witness_lock+0x44d #1 uvm_map_lock_entry+0x36 sys/uvm/uvm_map.c:508 #2 uvm_fault_unwire_locked+0x1e8 sys/uvm/uvm_fault.c:1655 #3 uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 #4 sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd8067bd5e90) #0 witness_lock+0x44d #1 uvm_fault_unwire+0x31 sys/uvm/uvm_fault.c:1600 #2 sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a3b270) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x198 sys/kern/kern_synch.c:437 #4 rw_enter+0x35a sys/kern/kern_rwlock.c:286 #5 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #6 uvmfault_lookup+0xb9 sys/uvm/uvm_fault.c:1752 #7 uvm_fault_check+0x603 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #7 uvm_fault_check+0x603 sys/uvm/uvm_fault.c:712 #8 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #9 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1580 #10 sys_sysctl+0x2d8 sys/kern/kern_sysctl.c:240 #11 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #11 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #12 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff828fe3f0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:233 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10209 6410K 6419K 78643K 11403 0 pcb 13 12K 14K 78643K 17 0 rtable 246 7K 8K 78643K 4021 0 ifaddr 74 16K 17K 78643K 315 0 sysctl 3 1K 4K 78643K 6 0 counters 54 35K 35K 78643K 122 0 ioctlops 0 0K 2K 78643K 313 0 iov 1 0K 28K 78643K 5417 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1271 79K 79K 78643K 7500 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 324 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 2608 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 22 81K 105K 78643K 33407 0 sigio 0 0K 0K 78643K 497 0 proc 56 74K 111K 78643K 3533 0 subproc 91 5K 6K 78643K 533 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2645 0 in_multi 88 5K 7K 78643K 808 0 ether_multi 1 0K 0K 78643K 79 0 mrt 6 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 289 1288K 1288K 78643K 289 0 exec 0 0K 2K 78643K 6528 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 7 26K 26K 78643K 7 0 UVM amap 496 92K 117K 78643K 432053 0 UVM aobj 131 7K 7K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 973 0 NDP 10 0K 2K 78643K 126 0 temp 117 4702K 4767K 78643K 83879 0 kqueue 13 20K 28K 78643K 2850 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 3427 0 3424 45 44 1 4 0 8 0 rtentry 112 550 0 436 4 0 4 4 0 8 0 unpcb 136 84201 0 84176 351 345 6 10 0 8 5 syncache 296 305 0 305 50 50 0 1 0 8 0 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 334 0 334 29 29 0 1 0 8 0 tcpcb 736 13877 0 13865 388 382 6 24 0 8 4 arp 120 93 0 77 1 0 1 1 0 8 0 ipq 40 48 0 47 17 16 1 1 0 8 0 ipqe 40 820 0 819 17 16 1 1 0 8 0 inpcb 304 28911 0 28903 323 317 6 14 0 8 5 rttmr 72 173 0 170 2 1 1 1 0 8 0 ip6q 72 138 0 137 12 11 1 1 0 8 0 ip6af 40 276 0 275 12 11 1 1 0 8 0 nd6 48 179 0 145 1 0 1 1 0 8 0 kcovpl 48 41 0 34 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2497 0 1947 53 13 40 42 0 8 0 art_table 32 2498 0 1947 6 0 6 6 0 8 0 art_node 16 549 0 444 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 1 0 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 2602 0 2592 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 46169 0 44666 95 0 95 95 0 8 0 ffsino 272 46169 0 44666 101 0 101 101 0 8 0 nchpl 144 90423 0 88799 62 0 62 62 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 302392 0 302392 14 13 1 2 0 8 1 percpumem 16 73 0 34 1 0 1 1 0 8 0 scxspl 216 265914 0 265914 111 108 3 8 0 8 3 plimitpl 152 5930 0 5910 21 20 1 2 0 8 0 sigapl 424 33625 0 33577 6 0 6 6 0 8 0 futexpl 64 291752 0 291750 11 10 1 1 0 8 0 knotepl 120 2246 0 0 20 3 17 18 0 8 0 kqueuepl 216 12327 0 12317 193 191 2 9 0 8 1 pipepl 336 7064 0 7039 169 163 6 11 0 8 3 fdescpl 496 33610 0 33577 6 1 5 5 0 8 0 filepl 152 272380 0 272149 396 380 16 24 0 8 5 lockfpl 104 5920 0 5917 7 6 1 2 0 8 0 lockfspl 48 1497 0 1494 1 0 1 1 0 8 0 sessionpl 144 56 0 41 1 0 1 1 0 8 0 pgrppl 48 486 0 471 1 0 1 1 0 8 0 ucredpl 96 35824 0 35807 1 0 1 1 0 8 0 zombiepl 144 33578 0 33577 6 5 1 1 0 8 0 processpl 1064 33625 0 33577 5 1 4 4 0 8 0 procpl 672 98784 0 98719 52 45 7 8 0 8 1 sosppl 168 391 0 391 52 52 0 1 0 8 0 sockpl 480 117827 0 117790 2563 2551 12 42 0 8 7 mcl64k 65536 82 0 0 5 2 3 3 0 8 0 mcl16k 16384 33 0 0 4 1 3 3 0 8 0 mcl12k 12288 65 0 0 2 0 2 2 0 8 0 mcl9k 9216 49 0 0 3 1 2 2 0 8 0 mcl8k 8192 81 0 0 5 2 3 3 0 8 0 mcl4k 4096 81 0 0 4 1 3 3 0 8 0 mcl2k2 2112 22 0 0 2 0 2 2 0 8 0 mcl2k 2048 626 0 0 26 7 19 20 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 2820 0 0 80 2 78 78 0 8 0 bufpl 288 59405 0 53070 453 0 453 453 0 8 0 anonpl 24 9752892 0 9739451 341 227 114 141 0 186 0 amapchunkpl 152 1117061 0 1116264 407 363 44 48 0 158 10 amappl16 200 98668 0 98237 427 403 24 36 0 8 0 amappl15 192 1586 0 1578 1 0 1 1 0 8 0 amappl14 184 5943 0 5935 1 0 1 1 0 8 0 amappl13 176 3707 0 3706 1 0 1 1 0 8 0 amappl12 168 1236 0 1236 6 6 0 1 0 8 0 amappl11 160 3289 0 3270 1 0 1 1 0 8 0 amappl10 152 15089 0 15079 1 0 1 1 0 8 0 amappl9 144 1602 0 1600 1 0 1 1 0 8 0 amappl8 136 4145 0 3902 9 0 9 9 0 8 0 amappl7 128 1868 0 1856 1 0 1 1 0 8 0 amappl6 120 1458 0 1435 2 1 1 2 0 8 0 amappl5 112 47814 0 47789 2 0 2 2 0 8 0 amappl4 104 6300 0 6263 2 0 2 2 0 8 0 amappl3 96 4069 0 4057 1 0 1 1 0 8 0 amappl2 88 7582 0 7533 3 1 2 3 0 8 0 amappl1 80 604938 0 604316 41 26 15 18 0 8 0 amappl 88 429542 0 429260 20 12 8 8 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 33610 0 33577 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 33610 0 33577 1 0 1 1 0 8 0 vmmpekpl 168 254763 0 254711 3 0 3 3 0 8 0 vmmpepl 168 3075231 0 3072411 429 294 135 143 0 357 0 vmsppl 368 33609 0 33577 4 0 4 4 0 8 0 rwobjpl 56 747708 0 740092 158 47 111 111 0 8 0 pdppl 4096 67227 0 67154 729 650 79 85 0 8 6 pvpl 32 15820792 0 15802029 684 494 190 259 0 265 0 pmappl 248 33609 0 33577 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2137 0 1238 27 0 27 27 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff828eaff0) 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 __mp_lock(ffffffff82a3b068) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a3b068) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x7 sys/dev/kcov.c:144 syscall(ffff800022c60520) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800022c60520) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x821064d8170, count: 6 ddb{0}> trace x86_ipi_db(ffffffff828eaff0) 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 __mp_lock(ffffffff82a3b068) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a3b068) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x7 sys/dev/kcov.c:144 syscall(ffff800022c60520) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800022c60520) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x821064d8170, count: -9 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:440 panic(ffffffff82576769) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ea40b,ffffffff82549618,66b,ffffffff82558d47) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff80002af32550,ffff800022c5aa08,ffff800022c5aa60) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff800022c5aad0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022c5aad0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8210529a950, count: 7 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82576769) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ea40b,ffffffff82549618,66b,ffffffff82558d47) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8067bd5e78,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff80002af32550,ffff800022c5aa08,ffff800022c5aa60) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff800022c5aad0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022c5aad0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8210529a950, count: -8