panic: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_fault.c", line 1739 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *459177 72313 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343d8a7) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e808d,ffffffff8337e4df,6cb,ffffffff8333820c) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4c45b4,2,400000000100,ffff80003c4c45e8,0,ffffffffffffff5a,2fae3989503e3090) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c4d79c8,ffff80003c4c4720,ffff80003c4c4670) at sys_sysctl+0x425 syscall(ffff80003c4c4720) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4c4720) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4797e81d4b0, count: 5 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/multicore/kernel/sys/uvm/uvm_fault.c", line 1739 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343d8a7) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e808d,ffffffff8337e4df,6cb,ffffffff8333820c) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4c45b4,2,400000000100,ffff80003c4c45e8,0,ffffffffffffff5a,2fae3989503e3090) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c4d79c8,ffff80003c4c4720,ffff80003c4c4670) at sys_sysctl+0x425 syscall(ffff80003c4c4720) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4c4720) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4797e81d4b0, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4c4190 rbx 0xffff800029a9cdc7 rdx 0 rcx 0xffff80003c4d79c8 rax 0xffff800029a9bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x6dd45b331508eb1a r11 0x919c93726e5d36d1 r12 0xffff800029a9cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff818fdc85 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4c4180 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=459177 pid=72313 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4d6a68,0xffff8000ffff6a70 process=0xffff80003c4d84b8 user=0xffff80003c4bf000, vmspace=0xfffffd806bd05578 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 72313 502104 96457 0 3 0x80 fsleep syz-executor *72313 459177 96457 0 7 0x4000000 syz-executor 72313 220728 96457 0 3 0x4000080 fsleep syz-executor 72313 417624 96457 0 3 0x4000000 amaplk syz-executor 71987 363174 49415 0 3 0x80 fsleep syz-executor 71987 288525 49415 0 3 0x4000080 sbwait syz-executor 71987 313554 49415 0 3 0x4000080 sbwait syz-executor 24360 473103 79810 60928 3 0x90 fsleep syz-executor 24360 482108 79810 60928 3 0x4000090 fifor syz-executor 24360 84653 79810 60928 3 0x4000090 fsleep syz-executor 86055 114728 46474 0 3 0x80 fsleep syz-executor 86055 339495 46474 0 3 0x4000080 kqsel syz-executor 64882 156885 61528 0 3 0x80 fsleep syz-executor 64882 72672 61528 0 3 0x4000080 sbwait syz-executor 59781 521649 88856 0 3 0x80 fsleep syz-executor 59781 324387 88856 0 3 0x4000080 ttyin syz-executor 55289 55475 66961 0 3 0x80 fsleep syz-executor 55289 207680 66961 0 3 0x4000080 ttyin syz-executor 19758 380640 0 0 3 0x14200 acct acct 28766 258113 35138 0 3 0x80 fsleep syz-executor 28766 183331 35138 0 3 0x4000080 sbwait syz-executor 85608 304652 0 0 3 0x14200 bored sosplice 35138 253797 3124 0 3 0x82 nanoslp syz-executor 88856 304447 3124 0 3 0x82 nanoslp syz-executor 61528 418246 3124 0 3 0x82 nanoslp syz-executor 79810 259295 3124 0 3 0x82 nanoslp syz-executor 49415 519141 3124 0 3 0x82 nanoslp syz-executor 66961 210750 3124 0 3 0x82 nanoslp syz-executor 96457 120896 3124 0 3 0x82 nanoslp syz-executor 46474 361875 3124 0 3 0x82 nanoslp syz-executor 3124 491320 15035 0 3 0x82 kqread syz-executor 15035 506777 62236 0 3 0x10008a sigsusp ksh 62236 48432 85311 0 3 0x98 kqread sshd-session 85311 256251 42869 0 3 0x92 kqread sshd-session 5525 941 1 0 3 0x100083 ttyin getty 42869 186781 1 0 3 0x88 kqread sshd 84207 437872 71178 74 3 0x1100092 bpf pflogd 71178 523002 1 0 3 0x80 sbwait pflogd 58564 270689 78027 73 3 0x1100090 kqread syslogd 78027 208026 1 0 3 0x100082 sbwait syslogd 4780 23104 1 0 3 0x100080 kqread resolvd 17642 486728 325 77 3 0x100092 kqread dhcpleased 87064 522573 325 77 3 0x100092 kqread dhcpleased 325 139659 1 0 3 0x80 kqread dhcpleased 22249 199922 0 0 3 0x14200 bored smr 75964 196974 0 0 3 0x14200 pgzero zerothread 65946 372540 0 0 3 0x14200 aiodoned aiodoned 37083 49337 0 0 3 0x14200 syncer update 93911 64938 0 0 3 0x14200 cleaner cleaner 50055 370801 0 0 3 0x14200 reaper reaper 75765 505491 0 0 3 0x14200 pgdaemon pagedaemon 6104 86991 0 0 3 0x14200 bored viomb 30633 52685 0 0 3 0x40014200 acpi0 acpi0 53239 151921 0 0 3 0x40014200 idle1 53188 158750 0 0 3 0x14200 bored softnet3 59707 204002 0 0 3 0x14200 bored softnet2 37829 490563 0 0 3 0x14200 bored softnet1 92334 235685 0 0 3 0x14200 bored softnet0 98745 440541 0 0 3 0x14200 bored systqmp 13350 336005 0 0 3 0x14200 bored systq 18287 64146 0 0 3 0x14200 tmoslp softclockmp 75735 260100 0 0 3 0x40014200 tmoslp softclock 22817 108307 0 0 7 0x40014200 idle0 1 380318 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 72313 (syz-executor) thread 0xffff80003c4d79c8 (459177) exclusive rwlock amaplk r = 0 (0xfffffd806d55e620) #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:1758 #4 uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 #5 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #5 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #6 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #7 sys_sysctl+0x425 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd806bd05678) #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_unwire+0x3e sys/uvm/uvm_fault.c:1701 #3 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #3 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839721b0) #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_read+0x2de sys/kern/kern_rwlock.c:385 #5 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1701 #6 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #6 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #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 exclusive rwlock sysctllk r = 0 (0xffffffff8382bb08) #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 Process 64882 (syz-executor) thread 0xffff8000ffff7210 (72672) exclusive rwlock sbufrcv r = 0 (0xffff800001443920) #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 sblock+0xb7 sys/kern/uipc_socket2.c:536 #3 soreceive+0x28e sys/kern/uipc_socket.c:882 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #5 sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 #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 10224 11035K 11038K 166960K 11342 0 pcb 17 12K 12K 166960K 54 0 rtable 246 8K 8K 166960K 392 0 pf 34 17K 18K 166960K 62 0 ifaddr 43 7K 8K 166960K 52 0 ifgroup 55 2K 2K 166960K 68 0 sysctl 3 1K 1K 166960K 3 0 counters 64 36K 36K 166960K 80 0 ioctlops 0 0K 4K 166960K 1502 0 iov 1 4K 12K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1438 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 7 1K 1K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 335 0 sigio 0 0K 0K 166960K 2 0 proc 71 91K 128K 166960K 553 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 28 0 in_multi 99 7K 7K 166960K 105 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 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 379 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 239 73K 81K 166960K 4624 0 UVM aobj 9 2K 2K 166960K 11 0 pinsyscall 43 86K 107K 166960K 1418 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 19 0 NDP 12 0K 2K 166960K 32 0 temp 45 8636K 8701K 166960K 12984 0 kqueue 15 22K 28K 166960K 56 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 82 0 79 2 0 2 2 0 8 1 rtentry 112 114 0 2 4 0 4 4 0 8 0 unpcb 144 144 0 116 2 0 2 2 0 8 0 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 60 0 53 2 0 2 2 0 8 1 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 376 272 0 261 5 0 5 5 0 8 3 nd6 136 26 0 0 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 6 0 6 1 0 1 1 0 8 1 pppxif 1472 2 0 2 1 0 1 1 0 8 1 pffrent 40 2 0 2 1 0 1 1 0 8 1 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 4 0 4 1 0 1 1 0 8 1 pfstitem 24 37 0 1 1 0 1 1 0 8 0 pfstkey 128 37 0 1 2 0 2 2 0 8 0 pfstate 376 37 0 1 4 0 4 4 0 8 0 pfrule 1344 25 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 463 0 6 29 0 29 29 0 8 0 art_table 32 464 0 6 4 0 4 4 0 8 0 art_node 16 113 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semapl 112 5 0 0 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1929 0 420 95 0 95 95 0 8 0 ffsino 280 1929 0 420 109 0 109 109 0 8 0 nchpl 144 2403 0 715 63 0 63 63 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 uvmvnodes 80 2039 0 0 42 0 42 42 0 8 0 vnodes 216 2039 0 0 114 0 114 114 0 8 0 namei 1024 7417 0 7417 2 1 1 2 0 8 1 percpumem 16 54 0 8 1 0 1 1 0 8 0 kstatmem 264 32 0 8 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 7974 0 7974 3 2 1 2 1 8 1 plimitpl 152 95 0 77 1 0 1 1 0 8 0 sigapl 424 636 0 584 7 1 6 7 0 8 0 futexpl 64 4348 0 4338 1 0 1 1 0 8 0 knotepl 120 320 0 0 10 0 10 10 0 8 0 kqueuepl 216 142 0 131 5 0 5 5 0 8 4 pipepl 328 127 0 99 3 0 3 3 0 8 0 fdescpl 504 616 0 584 5 0 5 5 0 8 0 filepl 152 2822 0 2589 12 0 12 12 0 8 2 lockfpl 104 123 0 121 1 0 1 1 0 8 0 lockfspl 48 37 0 35 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 458 0 443 1 0 1 1 0 8 0 zombiepl 144 584 0 584 1 0 1 1 0 8 1 processpl 1176 636 0 584 5 0 5 5 0 8 0 procpl 656 957 0 893 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 688 504 0 462 7 0 7 7 0 8 2 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 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 1184 0 0 74 0 74 74 0 8 0 bufpl 280 2964 0 127 203 0 203 203 0 8 0 anonpl 24 110251 0 106457 34 4 30 33 0 184 2 amapchunkpl 152 14462 0 13914 27 0 27 27 0 158 5 amappl16 200 1805 0 1772 5 3 2 5 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 114 0 102 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1279 0 1247 4 2 2 3 0 8 0 amappl11 160 50 0 36 1 0 1 1 0 8 0 amappl10 152 6 0 5 1 0 1 1 0 8 0 amappl9 144 264 0 264 1 1 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 109 0 97 1 0 1 1 0 8 0 amappl6 120 179 0 176 1 0 1 1 0 8 0 amappl5 112 125 0 116 1 0 1 1 0 8 0 amappl4 104 308 0 289 1 0 1 1 0 8 0 amappl3 96 2565 0 2445 4 0 4 4 0 8 0 amappl2 88 644 0 582 2 0 2 2 0 8 0 amappl1 80 8620 0 8047 15 1 14 14 0 8 0 amappl 88 4232 0 4050 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 10 0 2 1 0 1 1 0 8 0 uaddrrnd 24 616 0 584 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 616 0 584 1 0 1 1 0 8 0 vmmpekpl 168 6636 0 6597 3 0 3 3 0 8 0 vmmpepl 168 43436 0 41522 90 0 90 90 0 357 4 vmsppl 456 615 0 584 6 1 5 5 0 8 1 rwobjpl 64 16648 0 13658 49 0 49 49 0 8 0 pdppl 4096 1240 0 1168 100 26 74 86 0 8 2 pvpl 32 12605 0 0 103 1 102 102 0 265 0 pmappl 248 615 0 584 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 338 0 30 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837e0ff0) 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(ffffffff83971fa8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83971fa8) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffffffff837e0ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff837e0ff0) 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(ffffffff83971fa8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83971fa8) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffffffff837e0ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -8 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(ffffffff8343d8a7) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e808d,ffffffff8337e4df,6cb,ffffffff8333820c) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4c45b4,2,400000000100,ffff80003c4c45e8,0,ffffffffffffff5a,2fae3989503e3090) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c4d79c8,ffff80003c4c4720,ffff80003c4c4670) at sys_sysctl+0x425 syscall(ffff80003c4c4720) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4c4720) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4797e81d4b0, count: 5 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343d8a7) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e808d,ffffffff8337e4df,6cb,ffffffff8333820c) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd806bd05578,400000000000,400000003000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(33,ffff80003c4c45b8,1,400000000100,ffff80003c4c45e8,0,dae8ff2d401b462d,1) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c4c45b4,2,400000000100,ffff80003c4c45e8,0,ffffffffffffff5a,2fae3989503e3090) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c4d79c8,ffff80003c4c4720,ffff80003c4c4670) at sys_sysctl+0x425 syscall(ffff80003c4c4720) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4c4720) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4797e81d4b0, count: -10