panic: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_fault.c", line 1694 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 75498 53871 0 0 0x4000000 0K syz-executor 105349 53871 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83105635) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff830b74ae,ffffffff83057108,69e,ffffffff8301833c) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bea5720,20000000,20011000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd806bea5720,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff800036da4904,5,20000100,ffff800036da4938,0,37,e400db5247cf10d9) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff800036da4904,5,20000100,ffff800036da4938,0,37,e400db5247cf10d9) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000371e6f58,ffff800036da4a70,ffff800036da49c0) at sys_sysctl+0x425 syscall(ffff800036da4a70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800036da4a70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb563a9e1f80, 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: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_fault.c", line 1694 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83105635) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff830b74ae,ffffffff83057108,69e,ffffffff8301833c) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bea5720,20000000,20011000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd806bea5720,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff800036da4904,5,20000100,ffff800036da4938,0,37,e400db5247cf10d9) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff800036da4904,5,20000100,ffff800036da4938,0,37,e400db5247cf10d9) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000371e6f58,ffff800036da4a70,ffff800036da49c0) at sys_sysctl+0x425 syscall(ffff800036da4a70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800036da4a70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb563a9e1f80, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800036da4590 rbx 0xffffffff83425dbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff8000371e6f58 rax 0xffffffff83424ff0 cpu_info_full_primary+0x1ff0 r8 0 r9 0x8080808080808080 r10 0x6497c25131c2765b r11 0x9bd2fece544b7c29 r12 0xffffffff83425bc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff81668fa5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800036da4580 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=75498 pid=53871 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371e67c0,0xffff8000371e6548 process=0xffff8000ffff6d68 user=0xffff800036d9f000, vmspace=0xfffffd806bea5720 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53871 257880 29804 0 3 0x80 fsleep syz-executor *53871 75498 29804 0 7 0x4000000 syz-executor 53871 420594 29804 0 3 0x4000080 fsleep syz-executor 53871 105349 29804 0 7 0x4000000 syz-executor 37528 497220 48348 0 3 0x80 fsleep syz-executor 37528 496269 48348 0 3 0x4000080 pipewr syz-executor 83801 282717 8541 0 3 0x80 fsleep syz-executor 83801 150115 8541 0 3 0x4000080 sbwait syz-executor 83801 134036 8541 0 3 0x4000080 fsleep syz-executor 98079 512592 29715 0 3 0x80 fsleep syz-executor 98079 316432 29715 0 3 0x4000080 msgwait syz-executor 3607 55383 95561 0 3 0x80 fsleep syz-executor 3607 50591 95561 0 3 0x4000080 msgwait syz-executor 34563 341753 16824 0 3 0x80 fsleep syz-executor 34563 389579 16824 0 3 0x4000080 kqread syz-executor 28660 276829 37699 0 3 0x3800 suspend syz-executor 28660 126514 37699 0 4 0x4081800 syz-executor 84299 158857 0 0 3 0x14200 bored sosplice 95561 59860 69541 0 2 0x482 syz-executor 37699 144889 69541 0 3 0x82 wait syz-executor 53314 378729 69541 0 2 0x482 syz-executor 8541 62669 69541 0 2 0x482 syz-executor 48348 56853 69541 0 2 0x482 syz-executor 16824 398170 69541 0 3 0x82 nanoslp syz-executor 29715 280951 69541 0 3 0x82 nanoslp syz-executor 29804 412110 69541 0 2 0x482 syz-executor 69541 74344 5081 0 3 0x82 kqread syz-executor 5081 330724 14662 0 3 0x10008a sigsusp ksh 14662 175296 84630 0 3 0x98 kqread sshd-session 84630 367862 85432 0 3 0x92 kqread sshd-session 37269 136911 1 0 3 0x100083 ttyin getty 85432 496338 1 0 3 0x88 kqread sshd 59336 353165 5393 74 3 0x1100092 bpf pflogd 5393 61785 1 0 3 0x80 sbwait pflogd 16162 40518 81657 73 3 0x1100090 kqread syslogd 81657 67786 1 0 3 0x100082 sbwait syslogd 35880 130177 1 0 3 0x100080 kqread resolvd 2283 54755 32679 77 3 0x100092 kqread dhcpleased 66349 276929 32679 77 3 0x100092 kqread dhcpleased 32679 88145 1 0 3 0x80 kqread dhcpleased 26824 151377 0 0 3 0x14200 bored smr 31114 431912 0 0 3 0x14200 pgzero zerothread 68738 5422 0 0 3 0x14200 aiodoned aiodoned 65749 172861 0 0 3 0x14200 syncer update 37358 248113 0 0 3 0x14200 cleaner cleaner 15309 440138 0 0 3 0x14200 reaper reaper 68370 367518 0 0 3 0x14200 pgdaemon pagedaemon 37179 15305 0 0 3 0x14200 bored viomb 55267 500880 0 0 3 0x40014200 acpi0 acpi0 45890 421138 0 0 3 0x40014200 idle1 25170 505267 0 0 3 0x14200 bored softnet3 81385 140255 0 0 3 0x14200 bored softnet2 96475 351704 0 0 3 0x14200 bored softnet1 41000 166839 0 0 3 0x14200 bored softnet0 40919 80517 0 0 3 0x14200 bored systqmp 60492 8230 0 0 3 0x14200 bored systq 36210 490475 0 0 3 0x14200 tmoslp softclockmp 51261 60266 0 0 2 0x40014200 softclock 92732 212608 0 0 3 0x40014200 idle0 1 346593 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 53871 (syz-executor) thread 0xffff8000371e6f58 (75498) exclusive rwlock amaplk r = 0 (0xfffffd805f3ec898) #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:1713 #3 uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 #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 (0xfffffd806bea5818) #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:1656 #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 (0xffffffff835f75c8) #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+0x2f2 sys/kern/kern_synch.c:425 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5255 #6 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1813 #7 uvm_fault_check+0x831 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #7 uvm_fault_check+0x831 sys/uvm/uvm_fault.c:712 #8 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #9 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1636 #10 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:191 #11 kern_sysctl+0x1ad sys/kern/kern_sysctl.c:504 #12 sys_sysctl+0x425 #13 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #13 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8349bfa0) #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 Process 53871 (syz-executor) thread 0xffff8000371e7c00 (105349) exclusive rwlock amaplk r = 0 (0xfffffd805fef0dd8) #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_check+0x525 sys/uvm/uvm_fault.c:784 #2 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806bea5818) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1819 #2 uvm_fault_check+0x49 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10237 11414K 11449K 166960K 11633 0 pcb 17 14K 14K 166960K 150 0 rtable 211 7K 8K 166960K 390 0 pf 35 17K 18K 166960K 64 0 ifaddr 42 7K 7K 166960K 58 0 ifgroup 55 2K 2K 166960K 77 0 sysctl 2 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 80 0 ioctlops 0 0K 4K 166960K 1508 0 iov 0 0K 16K 166960K 83 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1369 86K 86K 166960K 1615 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 18 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 93K 166960K 462 0 sigio 0 0K 0K 166960K 8 0 proc 73 91K 128K 166960K 573 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 47 0 in_multi 95 7K 7K 166960K 125 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 422 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 247 73K 77K 166960K 6043 0 UVM aobj 14 2K 2K 166960K 18 0 pinsyscall 43 86K 107K 166960K 1541 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 22 0 NDP 12 0K 2K 166960K 37 0 temp 50 6821K 6886K 166960K 15106 0 kqueue 13 20K 26K 166960K 71 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 120 158 0 155 3 1 2 3 0 8 1 rtentry 112 116 0 19 4 0 4 4 0 8 0 unpcb 144 464 0 445 6 4 2 6 0 8 1 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 155 0 151 5 1 4 5 0 8 3 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 336 563 0 554 5 1 4 5 0 8 2 nd6 136 26 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 6 0 6 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 3 0 2 1 0 1 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 42 0 1 1 0 1 1 0 8 0 pfstkey 128 43 0 2 2 0 2 2 0 8 0 pfstate 376 43 0 2 5 0 5 5 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 520 0 86 29 0 29 29 0 8 1 art_table 32 522 0 86 4 0 4 4 0 8 0 art_node 16 115 0 27 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 15 0 4 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2162 0 661 95 0 95 95 0 8 0 ffsino 272 2162 0 661 101 0 101 101 0 8 0 nchpl 144 2892 0 2359 63 37 26 63 0 8 3 uvmvnodes 80 2375 0 0 49 0 49 49 0 8 0 vnodes 216 2375 0 0 132 0 132 132 0 8 0 namei 1024 9275 0 9275 2 1 1 2 0 8 1 percpumem 16 54 0 8 1 0 1 1 0 8 0 kstatmem 264 40 0 16 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7939 0 7939 3 2 1 2 1 8 1 plimitpl 152 67 0 48 1 0 1 1 0 8 0 sigapl 424 764 0 713 7 1 6 7 0 8 0 futexpl 64 6066 0 6058 1 0 1 1 0 8 0 knotepl 120 316 0 0 10 0 10 10 0 8 0 kqueuepl 216 101 0 91 1 0 1 1 0 8 0 pipepl 320 145 0 117 3 0 3 3 0 8 0 fdescpl 496 745 0 713 5 0 5 5 0 8 0 filepl 152 4286 0 4029 16 2 14 16 0 8 3 lockfpl 104 235 0 231 2 0 2 2 0 8 1 lockfspl 48 52 0 48 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 13 1 0 1 1 0 8 0 ucredpl 104 715 0 702 1 0 1 1 0 8 0 zombiepl 144 714 0 713 1 0 1 1 0 8 0 processpl 1160 764 0 713 5 1 4 5 0 8 0 procpl 648 1345 0 1284 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 664 1191 0 1160 15 7 8 14 0 8 5 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 139 0 0 18 0 18 18 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 11 0 0 1 0 1 1 0 8 0 mbufpl 256 2537 0 0 159 0 159 159 0 8 0 bufpl 280 2850 0 96 197 0 197 197 0 8 0 anonpl 24 188615 0 185095 46 1 45 46 0 185 22 amapchunkpl 152 20280 0 19749 31 4 27 31 0 158 6 amappl16 200 4977 0 4945 18 9 9 15 0 8 7 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 117 0 104 1 0 1 1 0 8 0 amappl13 176 12 0 12 1 1 0 1 0 8 0 amappl12 168 1397 0 1365 4 1 3 3 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 12 0 12 3 2 1 1 0 8 1 amappl9 144 143 0 143 1 1 0 1 0 8 0 amappl8 136 41 0 38 1 0 1 1 0 8 0 amappl7 128 105 0 93 1 0 1 1 0 8 0 amappl6 120 172 0 170 1 0 1 1 0 8 0 amappl5 112 138 0 126 1 0 1 1 0 8 0 amappl4 104 303 0 283 1 0 1 1 0 8 0 amappl3 96 3644 0 3541 3 0 3 3 0 8 0 amappl2 88 1010 0 925 2 0 2 2 0 8 0 amappl1 80 8468 0 7895 14 1 13 14 0 8 0 amappl 88 5633 0 5450 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 128 254 0 254 2 1 1 1 0 8 1 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 17 0 4 1 0 1 1 0 8 0 uaddrrnd 24 745 0 713 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 745 0 713 1 0 1 1 0 8 0 vmmpekpl 168 7360 0 7322 3 0 3 3 0 8 0 vmmpepl 168 53826 0 51902 95 1 94 95 0 357 10 vmsppl 448 744 0 713 6 2 4 5 0 8 0 rwobjpl 56 21442 0 18105 47 0 47 47 0 8 0 pdppl 4096 1497 0 1426 103 32 71 87 0 8 0 pvpl 32 13886 0 0 112 0 112 112 0 265 0 pmappl 248 744 0 713 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 538 0 40 15 0 15 15 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:437 panic(ffffffff83105635) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff830b74ae,ffffffff83057108,69e,ffffffff8301833c) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bea5720,20000000,20011000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd806bea5720,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1657 kern_sysctl(ffff800036da4904,5,20000100,ffff800036da4938,0,37,e400db5247cf10d9) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff800036da4904,5,20000100,ffff800036da4938,0,37,e400db5247cf10d9) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:508 sys_sysctl(ffff8000371e6f58,ffff800036da4a70,ffff800036da49c0) at sys_sysctl+0x425 syscall(ffff800036da4a70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800036da4a70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb563a9e1f80, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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(ffffffff835f73c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835f73c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000371c6bb0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371c6bb0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb55f4729ba0, count: 9 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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(ffffffff835f73c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835f73c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000371c6bb0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371c6bb0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb55f4729ba0, count: -6