panic: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1657 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 56687 9333 32767 0x10 0x4000000 1K syz-executor 6662 45743 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e6da5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309b4d3,ffffffff830d17d7,679,ffffffff82ffe0bd) at __assert+0x29 uvm_fault_unwire_locked(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1620 kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff80003539d460,ffff80002ad7dfc0,ffff80002ad7df10) at sys_sysctl+0x425 syscall(ffff80002ad7dfc0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002ad7dfc0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x978a5a05240, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1657 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e6da5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309b4d3,ffffffff830d17d7,679,ffffffff82ffe0bd) at __assert+0x29 uvm_fault_unwire_locked(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1620 kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff80003539d460,ffff80002ad7dfc0,ffff80002ad7df10) at sys_sysctl+0x425 syscall(ffff80002ad7dfc0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002ad7dfc0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x978a5a05240, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002ad7dae0 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff80003539d460 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x1efb922e7c7ab5 r11 0x719bfa4a8d47de29 r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff82a845c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002ad7dad0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=56687 pid=9333 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371cf978,0xffff80003539c7c8 process=0xffff8000371d04a8 user=0xffff80002ad79000, vmspace=0xfffffd8066bb2020 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 61427 239126 15252 0 2 0x2 syz-executor 9333 417745 67000 32767 2 0x10 syz-executor 9333 182310 67000 32767 3 0x4000090 fsleep syz-executor * 9333 56687 67000 32767 7 0x4000010 syz-executor 9333 280443 67000 32767 3 0x4000090 fsleep syz-executor 45743 6662 62559 32767 7 0x10 syz-executor 45743 88913 62559 32767 3 0x4000090 ttyin syz-executor 31405 275625 63518 32767 3 0x90 nanoslp syz-executor 31405 2785 63518 32767 3 0x4000090 kqread syz-executor 31405 458188 63518 32767 3 0x4000090 fsleep syz-executor 15090 231483 88824 32767 3 0x90 nanoslp syz-executor 15090 368321 88824 32767 3 0x4000090 sbwait syz-executor 15090 323810 88824 32767 3 0x4000090 fsleep syz-executor 64846 474070 0 0 3 0x14200 bored sosplice 960 286883 72943 32767 2 0x10 syz-executor 63518 150205 36429 32767 3 0x90 nanoslp syz-executor 62559 423805 91338 32767 3 0x90 nanoslp syz-executor 88824 76978 74412 32767 3 0x90 nanoslp syz-executor 42293 184567 24623 32767 3 0x90 piperd syz-executor 67000 499396 93422 32767 3 0x90 nanoslp syz-executor 91338 340570 15252 0 3 0x82 wait syz-executor 72943 224514 15252 0 3 0x82 wait syz-executor 74412 140500 15252 0 3 0x82 wait syz-executor 24623 347362 15252 0 3 0x82 wait syz-executor 36429 154387 15252 0 3 0x82 wait syz-executor 93422 428552 15252 0 3 0x82 wait syz-executor 15252 383386 75316 0 3 0x82 nanoslp syz-executor 75316 325533 7393 0 3 0x10008a sigsusp ksh 7393 306802 97314 0 3 0x98 kqread sshd-session 97314 420045 4236 0 3 0x92 kqread sshd-session 96637 254789 1 0 3 0x100083 ttyin getty 4236 181730 1 0 3 0x88 kqread sshd 37748 420122 89014 73 3 0x1100090 kqread syslogd 89014 420963 1 0 3 0x100082 sbwait syslogd 55164 340290 1 0 3 0x100080 kqread resolvd 28254 424653 8424 77 3 0x100092 kqread dhcpleased 32446 3056 8424 77 3 0x100092 kqread dhcpleased 8424 516645 1 0 3 0x80 kqread dhcpleased 68506 17649 0 0 3 0x14200 bored smr 43596 290089 0 0 2 0x14200 zerothread 29180 110012 0 0 3 0x14200 aiodoned aiodoned 49813 67647 0 0 3 0x14200 syncer update 94693 237676 0 0 3 0x14200 cleaner cleaner 85874 281507 0 0 3 0x14200 reaper reaper 93944 14200 0 0 3 0x14200 pgdaemon pagedaemon 93041 133491 0 0 3 0x14200 bored viomb 99492 419995 0 0 3 0x40014200 acpi0 acpi0 76334 368053 0 0 3 0x40014200 idle1 9273 319689 0 0 3 0x14200 bored softnet3 42441 324287 0 0 3 0x14200 bored softnet2 897 162418 0 0 3 0x14200 bored softnet1 71419 415217 0 0 3 0x14200 bored softnet0 43976 56932 0 0 3 0x14200 bored systqmp 80774 187664 0 0 3 0x14200 bored systq 87419 483967 0 0 3 0x14200 tmoslp softclockmp 12688 243269 0 0 3 0x40014200 tmoslp softclock 40864 23773 0 0 3 0x40014200 idle0 1 257754 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 9333 (syz-executor) thread 0xffff80003539d460 (56687) exclusive rwlock amaplk r = 0 (0xfffffd806c1ccdd8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_map_lock_entry+0x4c sys/uvm/uvm_map.c:464 #2 uvm_fault_unwire_locked+0x253 sys/uvm/uvm_fault.c:1676 #3 uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1620 #4 kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] #4 kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 #5 sys_sysctl+0x425 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd8066bb2118) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1619 #2 kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] #2 kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 #3 sys_sysctl+0x425 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8351c888) #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+0x278 sys/kern/kern_synch.c:417 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #6 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #7 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #8 vget+0x2bd sys/kern/vfs_subr.c:678 #9 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #10 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #11 ufs_lookup+0x1631 sys/ufs/ufs/ufs_lookup.c:555 #12 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #13 vfs_getcwd_scandir+0x12b sys/kern/vfs_getcwd.c:93 #14 vfs_getcwd_common+0x3f5 sys/kern/vfs_getcwd.c:353 #15 sysctl_proc_cwd+0x2b2 sys/kern/kern_sysctl.c:2322 #16 kern_sysctl+0x492 sys/kern/kern_sysctl.c:506 #17 sys_sysctl+0x425 #18 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #18 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 exclusive rwlock sysctllk r = 0 (0xffffffff834afa00) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:181 #3 kern_sysctl+0x1ad sys/kern/kern_sysctl.c:504 #4 sys_sysctl+0x425 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 11045K 11059K 166960K 11286 0 pcb 17 12K 12K 166960K 17 0 rtable 192 5K 7K 166960K 353 0 pf 27 16K 16K 166960K 31 0 ifaddr 34 6K 7K 166960K 44 0 ifgroup 42 1K 2K 166960K 50 0 counters 60 35K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 31 0 iov 1 2K 4K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1365 86K 86K 166960K 1618 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 19 66K 121K 166960K 267 0 proc 58 79K 127K 166960K 477 0 subproc 78 4K 6K 166960K 338 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 17 0 in_multi 79 5K 7K 166960K 102 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 211 943K 943K 166960K 211 0 exec 0 0K 1K 166960K 362 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 214 60K 74K 166960K 3423 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 40 80K 110K 166960K 1272 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 9 0K 2K 166960K 27 0 temp 27 6813K 6878K 166960K 4326 0 kqueue 17 24K 24K 166960K 34 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 45 0 41 1 0 1 1 0 8 0 rtentry 112 112 0 23 4 0 4 4 0 8 0 unpcb 144 64 0 44 1 0 1 1 0 8 0 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 75 0 68 5 0 5 5 0 8 3 arp 120 18 0 4 1 0 1 1 0 8 0 inpcb 336 192 0 180 7 0 7 7 0 8 5 nd6 136 25 0 6 1 0 1 1 0 8 0 kcovpl 48 26 0 20 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 454 0 88 29 0 29 29 0 8 3 art_table 32 455 0 88 4 0 4 4 0 8 0 art_node 16 111 0 30 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 4 0 0 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1645 0 115 96 0 96 96 0 8 0 ffsino 272 1645 0 115 102 0 102 102 0 8 0 nchpl 144 1898 0 202 63 0 63 63 0 8 0 uvmvnodes 80 1992 0 0 41 0 41 41 0 8 0 vnodes 216 1992 0 0 111 0 111 111 0 8 0 namei 1024 6503 0 6503 2 0 2 2 0 8 2 percpumem 16 46 0 2 1 0 1 1 0 8 0 kstatmem 264 22 0 4 2 0 2 2 0 8 0 scxspl 216 5525 0 5525 3 1 2 2 1 8 2 plimitpl 152 112 0 89 2 0 2 2 0 8 1 sigapl 424 507 0 456 7 0 7 7 0 8 0 futexpl 64 932 0 928 1 0 1 1 0 8 0 knotepl 120 67 0 0 3 0 3 3 0 8 0 kqueuepl 216 104 0 90 5 0 5 5 0 8 4 pipepl 320 161 0 134 3 0 3 3 0 8 0 fdescpl 496 488 0 457 7 1 6 6 0 8 0 filepl 152 2562 0 2272 15 0 15 15 0 8 3 lockfpl 104 25 0 23 1 0 1 1 0 8 0 lockfspl 48 12 0 10 1 0 1 1 0 8 0 sessionpl 144 41 0 27 1 0 1 1 0 8 0 pgrppl 48 69 0 48 1 0 1 1 0 8 0 ucredpl 104 240 0 223 1 0 1 1 0 8 0 zombiepl 144 457 0 456 1 0 1 1 0 8 0 processpl 1160 507 0 456 5 0 5 5 0 8 0 procpl 648 601 0 542 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 664 301 0 265 9 0 9 9 0 8 5 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 134 0 0 17 0 17 17 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 255 0 0 16 0 16 16 0 8 0 bufpl 280 2252 0 94 155 0 155 155 0 8 0 anonpl 24 194856 0 191845 23 1 22 23 0 185 1 amapchunkpl 152 11832 0 11376 23 0 23 23 0 158 4 amappl16 200 5821 0 5809 5 1 4 5 0 8 3 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 134 0 124 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1160 0 1130 2 0 2 2 0 8 0 amappl11 160 64 0 54 1 0 1 1 0 8 0 amappl10 152 94 0 94 1 1 0 1 0 8 0 amappl9 144 156 0 156 1 1 0 1 0 8 0 amappl8 136 28 0 27 1 0 1 1 0 8 0 amappl7 128 99 0 89 1 0 1 1 0 8 0 amappl6 120 228 0 227 1 0 1 1 0 8 0 amappl5 112 137 0 129 1 0 1 1 0 8 0 amappl4 104 289 0 273 1 0 1 1 0 8 0 amappl3 96 1987 0 1901 3 0 3 3 0 8 0 amappl2 88 764 0 688 2 0 2 2 0 8 0 amappl1 80 7983 0 7473 14 0 14 14 0 8 0 amappl 88 3062 0 2900 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 24 488 0 457 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 488 0 457 1 0 1 1 0 8 0 vmmpekpl 168 6086 0 6031 3 0 3 3 0 8 0 vmmpepl 168 41303 0 39598 89 0 89 89 0 357 4 vmsppl 448 487 0 457 5 0 5 5 0 8 0 rwobjpl 56 19302 0 16521 41 0 41 41 0 8 0 pdppl 4096 983 0 914 109 32 77 95 0 8 8 pvpl 32 9691 0 0 79 0 79 79 0 265 0 pmappl 248 487 0 457 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 402 0 35 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834e2ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8351c680) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8351c680) 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 end of kernel end trace frame: 0x7b9999cda750, count: 9 ddb{0}> trace x86_ipi_db(ffffffff834e2ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8351c680) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8351c680) 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 end of kernel end trace frame: 0x7b9999cda750, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e6da5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309b4d3,ffffffff830d17d7,679,ffffffff82ffe0bd) at __assert+0x29 uvm_fault_unwire_locked(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1620 kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff80003539d460,ffff80002ad7dfc0,ffff80002ad7df10) at sys_sysctl+0x425 syscall(ffff80002ad7dfc0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002ad7dfc0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x978a5a05240, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e6da5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309b4d3,ffffffff830d17d7,679,ffffffff82ffe0bd) at __assert+0x29 uvm_fault_unwire_locked(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd8066bb2020,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1620 kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff80002ad7de54,2,200001c0,ffff80002ad7de88,0,37,f22398afbae470d7) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff80003539d460,ffff80002ad7dfc0,ffff80002ad7df10) at sys_sysctl+0x425 syscall(ffff80002ad7dfc0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002ad7dfc0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x978a5a05240, count: -9