panic: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1739 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 27785 70084 32767 0x10 0 1 syz-executor *510432 70084 32767 0x10 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343db1c) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ec338,ffffffff8342dd3c,6cb,ffffffff83340e9e) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bf733b8,400000000000,400000011000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd806bf733b8,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 sysctl_vsunlock(400000000000,10011) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff80003c0dde14,3,400000000000,ffff80003c0dde48,0,0,9c609133836764ef) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff80003c5179d0,ffff80003c0ddf80,ffff80003c0dded0) at sys_sysctl+0x425 syscall(ffff80003c0ddf80) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c0ddf80) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc301e2d2ee0, 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{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/setuid/kernel/sys/uvm/uvm_fault.c", line 1739 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343db1c) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ec338,ffffffff8342dd3c,6cb,ffffffff83340e9e) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bf733b8,400000000000,400000011000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd806bf733b8,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 sysctl_vsunlock(400000000000,10011) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff80003c0dde14,3,400000000000,ffff80003c0dde48,0,0,9c609133836764ef) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff80003c5179d0,ffff80003c0ddf80,ffff80003c0dded0) at sys_sysctl+0x425 syscall(ffff80003c0ddf80) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c0ddf80) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc301e2d2ee0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c0ddb70 rbx 0xffffffff83856dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff80003c5179d0 rax 0xffffffff83855ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xdbf4e879af68fff5 r11 0xb1c05c27f354a0db r12 0xffffffff83856bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff81ba54b5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c0ddb60 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=510432 pid=70084 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c516550,0xffff8000ffff94b0 process=0xffff8000ffff3740 user=0xffff80003c0d9000, vmspace=0xfffffd806bf733b8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 32286 358927 26563 32767 2 0x10 syz-executor 32286 290734 26563 32767 3 0x4000090 fsleep syz-executor 70084 27785 29672 32767 7 0x10 syz-executor *70084 510432 29672 32767 7 0x4000010 syz-executor 70084 442336 29672 32767 2 0x4000090 syz-executor 70084 369612 29672 32767 2 0x4000010 syz-executor 27170 494607 35689 32767 2 0x10 syz-executor 2924 405750 72945 0 3 0x82 sbwait sshd-session 70342 51195 46687 32767 2 0x10 syz-executor 70342 7812 46687 32767 3 0x4000090 pipewr syz-executor 70342 4644 46687 32767 2 0x4000010 syz-executor 43290 284143 51004 32767 2 0x10 syz-executor 43290 224002 51004 32767 3 0x4000090 fsleep syz-executor 43290 149389 51004 32767 2 0x4000010 syz-executor 68403 161057 21991 32767 3 0x90 nanoslp syz-executor 68403 480682 21991 32767 3 0x4000090 kqsel syz-executor 68403 121821 21991 32767 3 0x4000090 fsleep syz-executor 77070 362184 67900 32767 2 0x10 syz-executor 77070 83914 67900 32767 2 0x4000010 syz-executor 77070 22137 67900 32767 2 0x4000010 syz-executor 77070 475843 67900 32767 3 0x4000090 fsleep syz-executor 77070 496433 67900 32767 3 0x4000090 fsleep syz-executor 78607 181020 57376 32767 2 0x10 syz-executor 78607 383981 57376 32767 3 0x4000090 ttyout syz-executor 78607 297990 57376 32767 3 0x4000090 ttybg syz-executor 78607 454970 57376 32767 3 0x4000090 fsleep syz-executor 23759 234819 0 0 3 0x14200 bored sosplice 51004 130535 17305 32767 3 0x90 nanoslp syz-executor 57376 382127 76763 32767 2 0x490 syz-executor 46687 148357 40788 32767 3 0x90 nanoslp syz-executor 29672 42183 58464 32767 3 0x90 nanoslp syz-executor 21991 51629 7502 32767 2 0x10 syz-executor 35689 482855 82111 32767 3 0x90 nanoslp syz-executor 67900 404853 30871 32767 2 0x10 syz-executor 26563 341956 98966 32767 3 0x90 nanoslp syz-executor 76763 313990 15073 0 3 0x82 wait syz-executor 17305 59968 15073 0 3 0x82 wait syz-executor 40788 387712 15073 0 3 0x82 wait syz-executor 7502 220957 15073 0 3 0x82 wait syz-executor 58464 346475 15073 0 3 0x82 wait syz-executor 30871 354697 15073 0 3 0x82 wait syz-executor 82111 423148 15073 0 3 0x82 wait syz-executor 98966 102465 15073 0 3 0x82 wait syz-executor 15073 136968 39897 0 3 0x82 kqread syz-executor 39897 509924 60581 0 3 0x10008a sigsusp ksh 60581 67046 22412 0 3 0x98 kqread sshd-session 22412 191697 72945 0 3 0x92 kqread sshd-session 60570 289376 1 0 3 0x100083 ttyin getty 72945 275003 1 0 2 0 sshd 91144 331394 49465 73 3 0x1100090 kqread syslogd 49465 414948 1 0 3 0x100082 sbwait syslogd 70471 468171 1 0 3 0x100080 kqread resolvd 31212 277280 17502 77 3 0x100092 kqread dhcpleased 35052 371082 17502 77 3 0x100092 kqread dhcpleased 17502 73142 1 0 3 0x80 kqread dhcpleased 4373 216876 0 0 3 0x14200 bored smr 20203 40076 0 0 2 0x14200 zerothread 82335 91155 0 0 3 0x14200 aiodoned aiodoned 82542 426104 0 0 3 0x14200 syncer update 78679 307063 0 0 3 0x14200 cleaner cleaner 94552 503564 0 0 3 0x14200 reaper reaper 88750 450069 0 0 3 0x14200 pgdaemon pagedaemon 62601 465897 0 0 3 0x14200 bored viomb 29273 285018 0 0 3 0x40014200 acpi0 acpi0 10033 450832 0 0 3 0x40014200 idle1 21883 459910 0 0 3 0x14200 bored softnet3 26725 508817 0 0 3 0x14200 bored softnet2 32813 82202 0 0 3 0x14200 bored softnet1 7716 100414 0 0 3 0x14200 bored softnet0 55975 521327 0 0 3 0x14200 bored systqmp 78747 369942 0 0 3 0x14200 bored systq 96775 275939 0 0 3 0x14200 tmoslp softclockmp 59420 121723 0 0 2 0x40014200 softclock 37592 475310 0 0 3 0x40014200 idle0 1 448054 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 70084 (syz-executor) thread 0xffff80003c5179d0 (510432) exclusive rwlock amaplk r = 0 (0xfffffd806d33d520) #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 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 #6 net_sysctl+0x69a sys/kern/uipc_domain.c:259 #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 (0xfffffd806bf734b8) #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 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 #4 net_sysctl+0x69a sys/kern/uipc_domain.c:259 #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 (0xffffffff839e35a8) #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:412 #4 rw_do_enter_read+0x2de sys/kern/kern_rwlock.c:385 #5 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #6 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:730 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:666 #8 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1681 #9 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 #10 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #11 sys_sysctl+0x425 #12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8383f768) #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 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #4 sys_sysctl+0x425 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 10954K 10965K 166960K 11264 0 pcb 17 12K 12K 166960K 17 0 rtable 238 6K 7K 166960K 356 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 2 1K 1K 166960K 2 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 29 0 iov 0 0K 12K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1332 84K 84K 166960K 1351 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 26 97K 121K 166960K 202 0 sigio 0 0K 0K 166960K 2 0 proc 58 79K 115K 166960K 473 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 13 0 in_multi 99 7K 7K 166960K 99 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 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 353 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 261 74K 77K 166960K 3226 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 49 98K 112K 166960K 1239 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 11 0K 2K 166960K 27 0 temp 39 8683K 8747K 166960K 3967 0 kqueue 13 20K 28K 166960K 28 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 73 0 69 2 0 2 2 0 8 1 rtentry 160 113 0 1 5 0 5 5 0 8 0 unpcb 144 98 0 75 2 0 2 2 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 44 0 36 2 0 2 2 0 8 1 arp 120 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 2 1 0 1 1 0 8 0 inpcb 376 137 0 126 3 0 3 3 0 8 1 nd6 136 26 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 466 0 0 30 0 30 30 0 8 0 art_table 32 467 0 0 4 0 4 4 0 8 0 art_node 16 112 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 1 1 0 1 1 0 8 0 semapl 112 7 0 1 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1613 0 111 94 0 94 94 0 8 0 ffsino 280 1613 0 111 108 0 108 108 0 8 0 nchpl 144 1879 0 206 63 0 63 63 0 8 0 uvmvnodes 80 1694 0 0 35 0 35 35 0 8 0 vnodes 216 1694 0 0 95 0 95 95 0 8 0 namei 1024 5559 0 5559 1 0 1 1 0 8 1 percpumem 16 46 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6017 0 6017 3 2 1 2 1 8 1 plimitpl 152 39 0 14 2 0 2 2 0 8 1 sigapl 424 485 0 427 7 0 7 7 0 8 0 futexpl 64 922 0 916 1 0 1 1 0 8 0 knotepl 120 286 0 0 9 0 9 9 0 8 0 kqueuepl 216 34 0 22 1 0 1 1 0 8 0 pipepl 328 113 0 83 3 0 3 3 0 8 0 fdescpl 504 466 0 427 7 1 6 6 0 8 0 filepl 152 1728 0 1496 10 0 10 10 0 8 0 lockfpl 104 23 0 21 1 0 1 1 0 8 0 lockfspl 48 10 0 8 1 0 1 1 0 8 0 sessionpl 144 24 0 7 1 0 1 1 0 8 0 pgrppl 48 33 0 7 1 0 1 1 0 8 0 ucredpl 104 180 0 161 1 0 1 1 0 8 0 zombiepl 144 427 0 427 1 0 1 1 0 8 1 processpl 1176 485 0 427 5 0 5 5 0 8 0 procpl 656 600 0 525 7 0 7 7 0 8 0 sockpl 688 310 0 269 7 0 7 7 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 129 0 0 17 0 17 17 0 8 0 mcl2k 2048 26 0 0 4 0 4 4 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 261 0 0 17 0 17 17 0 8 0 bufpl 280 2302 0 124 156 0 156 156 0 8 0 anonpl 24 99370 0 95872 24 2 22 23 0 184 0 amapchunkpl 152 9761 0 9166 26 0 26 26 0 158 0 amappl16 200 1853 0 1829 5 1 4 5 0 8 2 amappl15 192 23 0 23 1 1 0 1 0 8 0 amappl14 184 112 0 101 1 0 1 1 0 8 0 amappl13 176 45 0 45 1 1 0 1 0 8 0 amappl12 168 1090 0 1052 2 0 2 2 0 8 0 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 243 0 243 1 1 0 1 0 8 0 amappl8 136 19 0 18 1 0 1 1 0 8 0 amappl7 128 94 0 83 1 0 1 1 0 8 0 amappl6 120 192 0 188 1 0 1 1 0 8 0 amappl5 112 116 0 110 1 0 1 1 0 8 0 amappl4 104 304 0 289 1 0 1 1 0 8 0 amappl3 96 1650 0 1513 4 0 4 4 0 8 0 amappl2 88 629 0 571 2 0 2 2 0 8 0 amappl1 80 8192 0 7604 14 0 14 14 0 8 0 amappl 88 2868 0 2661 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 466 0 427 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 466 0 427 1 0 1 1 0 8 0 vmmpekpl 168 5541 0 5502 2 0 2 2 0 8 0 vmmpepl 168 35695 0 33567 96 0 96 96 0 357 3 vmsppl 456 465 0 427 7 1 6 6 0 8 0 rwobjpl 64 14798 0 12193 43 0 43 43 0 8 0 pdppl 4096 939 0 854 111 26 85 95 0 8 0 pvpl 32 13987 0 0 113 0 113 113 0 265 0 pmappl 248 465 0 427 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 294 0 29 8 0 8 8 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:438 panic(ffffffff8343db1c) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833ec338,ffffffff8342dd3c,6cb,ffffffff83340e9e) at __assert+0x29 uvm_fault_unwire_locked(fffffd806bf733b8,400000000000,400000011000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd806bf733b8,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 sysctl_vsunlock(400000000000,10011) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff80003c0dde14,3,400000000000,ffff80003c0dde48,0,0,9c609133836764ef) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff80003c5179d0,ffff80003c0ddf80,ffff80003c0dded0) at sys_sysctl+0x425 syscall(ffff80003c0ddf80) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c0ddf80) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc301e2d2ee0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) 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 end of kernel end trace frame: 0x7d31d712fc60, count: 12 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) 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 end of kernel end trace frame: 0x7d31d712fc60, count: -3