panic: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1741 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *456515 35540 32767 0x10 0x4000000 1 syz-executor 516407 69038 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83438c99) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ea060,ffffffff83425cda,6cd,ffffffff83338326) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c122740,400000000000,400000010000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1704 [inline] uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1686 sysctl_vslock(4000000001c0,ffb5) at sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 kern_sysctl_dirs(4e,ffff80003b4c9728,1,4000000001c0,ffff80003b4c9758,0,4bc9c7a46c0be5c0,1) at kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 kern_sysctl(ffff80003b4c9724,2,4000000001c0,ffff80003b4c9758,0,37,c3f3c3e583c26111) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c511218,ffff80003b4c9890,ffff80003b4c97e0) at sys_sysctl+0x425 syscall(ffff80003b4c9890) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b4c9890) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ebfa6a92a0, count: 4 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 1741 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83438c99) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ea060,ffffffff83425cda,6cd,ffffffff83338326) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c122740,400000000000,400000010000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1704 [inline] uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1686 sysctl_vslock(4000000001c0,ffb5) at sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 kern_sysctl_dirs(4e,ffff80003b4c9728,1,4000000001c0,ffff80003b4c9758,0,4bc9c7a46c0be5c0,1) at kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 kern_sysctl(ffff80003b4c9724,2,4000000001c0,ffff80003b4c9758,0,37,c3f3c3e583c26111) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c511218,ffff80003b4c9890,ffff80003b4c97e0) at sys_sysctl+0x425 syscall(ffff80003b4c9890) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b4c9890) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ebfa6a92a0, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003b4c9290 rbx 0xffff800029a9cdc7 rdx 0 rcx 0xffff80003c511218 rax 0xffff800029a9bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa871965d7272f56e r11 0x4897c17240e0ef7d r12 0xffff800029a9cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff816918b5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003b4c9280 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=456515 pid=35540 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=51, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c510f88,0xffff80003c5114b8 process=0xffff80002a48ae08 user=0xffff80003b4c4000, vmspace=0xfffffd806c122740 estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 35540 411182 61339 32767 3 0x10 vmmaplk syz-executor *35540 456515 61339 32767 7 0x4000010 syz-executor 35540 448825 61339 32767 2 0x4000010 syz-executor 35540 209778 61339 32767 3 0x4000010 vmmaplk syz-executor 61170 427010 25445 0 2 0x2 syz-executor 69038 516407 70524 32767 7 0x10 syz-executor 69038 472393 70524 32767 3 0x4000090 fsleep syz-executor 69038 253008 70524 32767 3 0x4000090 fsleep syz-executor 37899 406074 55485 32767 3 0x3010 suspend syz-executor 37899 107554 55485 32767 2 0x4081010 syz-executor 55485 515230 39850 32767 2 0x490 syz-executor 39850 258764 25445 0 3 0x82 wait syz-executor 62381 306966 86397 0 3 0x82 sbwait sshd-session 6223 503200 0 0 3 0x14200 bored sosplice 91830 70467 70714 0 3 0x100082 sbwait arp 70714 3732 16723 0 3 0x10008a sigsusp sh 16723 4027 38515 0 3 0x80 wait syz-executor 20859 216795 25382 32767 3 0x90 piperd syz-executor 61339 115320 50104 32767 3 0x90 nanoslp syz-executor 70524 114889 73681 32767 3 0x90 nanoslp syz-executor 67344 314101 11083 32767 3 0x90 piperd syz-executor 38515 100430 25445 0 3 0x82 wait syz-executor 11083 99660 25445 0 3 0x82 wait syz-executor 25382 150042 25445 0 3 0x82 wait syz-executor 73681 433440 25445 0 3 0x82 wait syz-executor 50104 428853 25445 0 3 0x82 wait syz-executor 25445 294607 1389 0 3 0x82 nanoslp syz-executor 1389 471389 27148 0 3 0x10008a sigsusp ksh 27148 50805 36886 0 3 0x98 kqread sshd-session 36886 4511 86397 0 3 0x92 kqread sshd-session 18101 418736 1 0 3 0x100083 ttyin getty 86397 128847 1 0 3 0x88 kqread sshd 8661 246989 15649 73 3 0x1100090 kqread syslogd 15649 125852 1 0 3 0x100082 sbwait syslogd 44634 246731 1 0 3 0x100080 kqread resolvd 23756 80807 32767 77 3 0x100092 kqread dhcpleased 28028 307047 32767 77 3 0x100092 kqread dhcpleased 32767 198381 1 0 3 0x80 kqread dhcpleased 39673 290168 0 0 3 0x14200 bored smr 63357 127405 0 0 2 0x14200 zerothread 48422 485883 0 0 3 0x14200 aiodoned aiodoned 85918 337493 0 0 3 0x14200 syncer update 47623 62279 0 0 3 0x14200 cleaner cleaner 53342 298672 0 0 3 0x14200 reaper reaper 49239 212706 0 0 3 0x14200 pgdaemon pagedaemon 88832 465858 0 0 3 0x14200 bored viomb 99008 318867 0 0 3 0x40014200 acpi0 acpi0 17921 39952 0 0 3 0x40014200 idle1 33560 191052 0 0 3 0x14200 bored softnet3 23011 432422 0 0 3 0x14200 bored softnet2 57241 99548 0 0 3 0x14200 bored softnet1 71575 236922 0 0 3 0x14200 bored softnet0 76418 211688 0 0 3 0x14200 bored systqmp 2179 99456 0 0 3 0x14200 bored systq 61351 498540 0 0 3 0x14200 tmoslp softclockmp 32309 299467 0 0 3 0x40014200 tmoslp softclock 87201 322483 0 0 3 0x40014200 idle0 1 83631 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 35540 (syz-executor) thread 0xffff80003c511218 (456515) exclusive rwlock amaplk r = 0 (0xfffffd806029e468) #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 uvm_map_lock_entry+0x51 sys/uvm/uvm_map.c:464 #3 uvm_fault_unwire_locked+0x253 sys/uvm/uvm_fault.c:1760 #4 uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1704 [inline] #4 uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1686 #5 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 #6 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #7 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #8 sys_sysctl+0x425 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd806c122840) #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:1703 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1686 #3 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 #4 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #5 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #6 sys_sysctl+0x425 #7 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838df1a0) #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:414 #4 rw_do_enter_write+0x1de sys/kern/kern_rwlock.c:292 #5 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #6 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1860 #7 uvm_fault_check+0x987 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #7 uvm_fault_check+0x987 sys/uvm/uvm_fault.c:774 #8 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #9 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1683 #10 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 #11 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #12 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #13 sys_sysctl+0x425 #14 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff837a1058) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10180 10949K 10966K 166960K 11268 0 pcb 17 12K 12K 166960K 17 0 rtable 174 4K 6K 166960K 363 0 pf 27 16K 16K 166960K 33 0 ifaddr 32 5K 7K 166960K 46 0 ifgroup 42 1K 2K 166960K 54 0 sysctl 1 1K 1K 166960K 1 0 counters 60 35K 36K 166960K 66 0 ioctlops 0 0K 2K 166960K 31 0 iov 0 0K 12K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1332 84K 84K 166960K 1573 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 73K 129K 166960K 301 0 sigio 0 0K 0K 166960K 2 0 proc 61 91K 115K 166960K 505 0 subproc 58 3K 4K 166960K 292 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 10 0 in_multi 67 5K 6K 166960K 109 0 ether_multi 1 0K 0K 166960K 2 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 386 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 216 57K 74K 166960K 3458 0 UVM aobj 8 3K 3K 166960K 8 0 pinsyscall 44 88K 114K 166960K 1345 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 9 0K 1K 166960K 28 0 temp 68 8687K 8752K 166960K 4551 0 kqueue 13 20K 26K 166960K 30 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 42 0 38 1 0 1 1 0 8 0 rtentry 112 115 0 35 3 0 3 3 0 8 0 unpcb 144 153 0 136 4 0 4 4 0 8 2 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 808 29 0 23 1 0 1 1 0 8 0 arp 120 19 0 6 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 44 0 44 1 0 1 1 0 8 1 inpcb 376 174 0 164 8 0 8 8 0 8 7 nd6 136 25 0 10 1 0 1 1 0 8 0 kcovpl 48 32 0 26 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 456 0 134 26 0 26 26 0 8 5 art_table 32 457 0 134 4 0 4 4 0 8 0 art_node 16 114 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 4 0 1 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1654 0 122 96 0 96 96 0 8 0 ffsino 280 1654 0 122 110 0 110 110 0 8 0 nchpl 144 1916 0 213 64 0 64 64 0 8 0 uvmvnodes 80 1955 0 0 40 0 40 40 0 8 0 vnodes 216 1955 0 0 109 0 109 109 0 8 0 namei 1024 6004 0 6004 2 0 2 2 0 8 2 percpumem 16 47 0 3 1 0 1 1 0 8 0 kstatmem 264 24 0 6 2 0 2 2 0 8 0 scxspl 216 6118 0 6118 3 2 1 2 1 8 1 plimitpl 152 96 0 74 2 0 2 2 0 8 1 sigapl 424 532 0 480 8 0 8 8 0 8 0 futexpl 64 808 0 806 1 0 1 1 0 8 0 knotepl 120 73 0 0 3 0 3 3 0 8 0 kqueuepl 216 34 0 25 1 0 1 1 0 8 0 pipepl 328 184 0 156 3 0 3 3 0 8 0 fdescpl 504 513 0 480 7 1 6 6 0 8 0 filepl 152 2153 0 1954 14 0 14 14 0 8 5 lockfpl 104 19 0 16 1 0 1 1 0 8 0 lockfspl 48 11 0 8 1 0 1 1 0 8 0 sessionpl 144 46 0 31 1 0 1 1 0 8 0 pgrppl 48 79 0 57 1 0 1 1 0 8 0 ucredpl 104 153 0 137 1 0 1 1 0 8 0 zombiepl 144 481 0 480 1 0 1 1 0 8 0 processpl 1176 532 0 480 5 0 5 5 0 8 0 procpl 656 639 0 581 6 0 6 6 0 8 0 sockpl 688 371 0 340 16 5 11 16 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 15 0 15 15 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 274 0 0 18 0 18 18 0 8 0 bufpl 280 2324 0 124 158 0 158 158 0 8 0 anonpl 24 103453 0 100232 33 0 33 33 0 184 11 amapchunkpl 152 10692 0 10234 27 0 27 27 0 158 6 amappl16 200 1854 0 1838 5 2 3 5 0 8 1 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 108 0 96 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1136 0 1103 2 0 2 2 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 8 0 8 2 2 0 1 0 8 0 amappl9 144 243 0 243 1 1 0 1 0 8 0 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 93 0 81 1 0 1 1 0 8 0 amappl6 120 182 0 177 1 0 1 1 0 8 0 amappl5 112 119 0 113 1 0 1 1 0 8 0 amappl4 104 282 0 267 1 0 1 1 0 8 0 amappl3 96 1727 0 1620 4 0 4 4 0 8 0 amappl2 88 633 0 569 2 0 2 2 0 8 0 amappl1 80 8142 0 7509 14 0 14 14 0 8 0 amappl 88 3083 0 2923 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 513 0 480 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 513 0 480 1 0 1 1 0 8 0 vmmpekpl 168 6307 0 6259 3 0 3 3 0 8 0 vmmpepl 168 37557 0 35657 93 0 93 93 0 357 2 vmsppl 456 512 0 480 7 1 6 6 0 8 0 rwobjpl 64 15304 0 12403 48 0 48 48 0 8 0 pdppl 4096 1033 0 960 115 36 79 99 0 8 6 pvpl 32 12720 0 0 104 1 103 103 0 265 0 pmappl 248 512 0 480 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 294 0 39 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8387dff0) 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(ffffffff838def98) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838def98) at __mp_lock+0x199 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff838def98) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838def98) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 uvm_fault(fffffd806c122020,eeb5e9aa000,0,1) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:691 upageflttrap(ffff80003c50fb50,eeb5e9aa000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c50fb50) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7b9e97cd5e20, count: 3 ddb{0}> trace x86_ipi_db(ffffffff8387dff0) 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(ffffffff838def98) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838def98) at __mp_lock+0x199 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff838def98) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838def98) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 uvm_fault(fffffd806c122020,eeb5e9aa000,0,1) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:691 upageflttrap(ffff80003c50fb50,eeb5e9aa000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c50fb50) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7b9e97cd5e20, count: -12 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:438 panic(ffffffff83438c99) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ea060,ffffffff83425cda,6cd,ffffffff83338326) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c122740,400000000000,400000010000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1704 [inline] uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1686 sysctl_vslock(4000000001c0,ffb5) at sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 kern_sysctl_dirs(4e,ffff80003b4c9728,1,4000000001c0,ffff80003b4c9758,0,4bc9c7a46c0be5c0,1) at kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 kern_sysctl(ffff80003b4c9724,2,4000000001c0,ffff80003b4c9758,0,37,c3f3c3e583c26111) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c511218,ffff80003b4c9890,ffff80003b4c97e0) at sys_sysctl+0x425 syscall(ffff80003b4c9890) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b4c9890) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ebfa6a92a0, count: 4 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83438c99) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ea060,ffffffff83425cda,6cd,ffffffff83338326) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c122740,400000000000,400000010000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1704 [inline] uvm_fault_wire(fffffd806c122740,400000000000,400000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1686 sysctl_vslock(4000000001c0,ffb5) at sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 kern_sysctl_dirs(4e,ffff80003b4c9728,1,4000000001c0,ffff80003b4c9758,0,4bc9c7a46c0be5c0,1) at kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 kern_sysctl(ffff80003b4c9724,2,4000000001c0,ffff80003b4c9758,0,37,c3f3c3e583c26111) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c511218,ffff80003b4c9890,ffff80003b4c97e0) at sys_sysctl+0x425 syscall(ffff80003b4c9890) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b4c9890) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ebfa6a92a0, count: -11