panic: kernel diagnostic assertion "_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_device.c", line 230 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 192231 75679 0 0 0 1 syz-executor.0 *505203 92961 0 0 0x4000000 0 syz-executor.1 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff824526a8) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff824c05ca,ffffffff8244b560,e6,ffffffff824ced3e) at __assert+0x25 sys/kern/subr_prf.c:161 udv_reference(ffff800000b52480) at udv_reference+0x84 sys/uvm/uvm_device.c:230 uvm_mapent_clone(fffffd8008586730,0,3000,0,7,7) at uvm_mapent_clone+0x1a2 sys/uvm/uvm_map.c:3810 uvm_share(fffffd8008586730,0,7,fffffd806f035e68,20000000,200000) at uvm_share+0x45c uvm_mapent_share sys/uvm/uvm_map.c:3840 [inline] uvm_share(fffffd8008586730,0,7,fffffd806f035e68,20000000,200000) at uvm_share+0x45c sys/uvm/uvm_map.c:3739 vm_impl_init_vmx(ffff800023293a40,ffff800021252540) at vm_impl_init_vmx+0xb4 sys/arch/amd64/amd64/vmm.c:1591 vm_create(ffff800000b57800,ffff800021252540) at vm_create+0x19b vm_impl_init sys/arch/amd64/amd64/vmm.c:1690 [inline] vm_create(ffff800000b57800,ffff800021252540) at vm_create+0x19b sys/arch/amd64/amd64/vmm.c:1510 vmmioctl(a00,c5005601,ffff800000b57800,1,ffff800021252540) at vmmioctl+0x1f2 VOP_IOCTL(fffffd806e154830,c5005601,ffff800000b57800,1,fffffd807f7d86c0,ffff800021252540) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 vn_ioctl(fffffd80645e5280,c5005601,ffff800000b57800,ffff800021252540) at vn_ioctl+0xba sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800021252540,ffff800023291538,ffff800023291580) at sys_ioctl+0x4a2 syscall(ffff800023291600) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023291600) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x35472f3d600, count: 1 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 "_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_device.c", line 230 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff824526a8) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff824c05ca,ffffffff8244b560,e6,ffffffff824ced3e) at __assert+0x25 sys/kern/subr_prf.c:161 udv_reference(ffff800000b52480) at udv_reference+0x84 sys/uvm/uvm_device.c:230 uvm_mapent_clone(fffffd8008586730,0,3000,0,7,7) at uvm_mapent_clone+0x1a2 sys/uvm/uvm_map.c:3810 uvm_share(fffffd8008586730,0,7,fffffd806f035e68,20000000,200000) at uvm_share+0x45c uvm_mapent_share sys/uvm/uvm_map.c:3840 [inline] uvm_share(fffffd8008586730,0,7,fffffd806f035e68,20000000,200000) at uvm_share+0x45c sys/uvm/uvm_map.c:3739 vm_impl_init_vmx(ffff800023293a40,ffff800021252540) at vm_impl_init_vmx+0xb4 sys/arch/amd64/amd64/vmm.c:1591 vm_create(ffff800000b57800,ffff800021252540) at vm_create+0x19b vm_impl_init sys/arch/amd64/amd64/vmm.c:1690 [inline] vm_create(ffff800000b57800,ffff800021252540) at vm_create+0x19b sys/arch/amd64/amd64/vmm.c:1510 vmmioctl(a00,c5005601,ffff800000b57800,1,ffff800021252540) at vmmioctl+0x1f2 VOP_IOCTL(fffffd806e154830,c5005601,ffff800000b57800,1,fffffd807f7d86c0,ffff800021252540) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 vn_ioctl(fffffd80645e5280,c5005601,ffff800000b57800,ffff800021252540) at vn_ioctl+0xba sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800021252540,ffff800023291538,ffff800023291580) at sys_ioctl+0x4a2 syscall(ffff800023291600) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023291600) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x35472f3d600, count: -14 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800023290ea0 rbx 0xffffffff82828bff cpu_info_full_primary+0x2bff rdx 0x8b rcx 0x2 rax 0x8c r8 0xffffffff820a9ca4 kprintf+0x144 r9 0x1 r10 0xc1772241ca573511 r11 0xbf97a082c3efaf64 r12 0xffffffff82828a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8230ccb8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800023290e90 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=505203 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000212522a0,0xffff8000212527f0 process=0xffff8000ffffae18 user=0xffff80002328c000, vmspace=0xfffffd806f035e68 estcpu=36, cpticks=6, pctcpu=0.0 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 75679 192231 53394 0 7 0 syz-executor.0 75679 192092 53394 0 2 0x4000000 syz-executor.0 92961 85714 36435 0 2 0 syz-executor.1 *92961 505203 36435 0 7 0x4000000 syz-executor.1 36435 453157 13710 0 2 0x482 syz-executor.1 53394 465636 13710 0 2 0x482 syz-executor.0 13710 486600 38023 0 3 0x82 thrsleep syz-fuzzer 13710 505906 38023 0 2 0x4000482 syz-fuzzer 13710 348493 38023 0 3 0x4000082 thrsleep syz-fuzzer 13710 300960 38023 0 3 0x4000082 thrsleep syz-fuzzer 13710 160694 38023 0 3 0x4000082 thrsleep syz-fuzzer 13710 414039 38023 0 3 0x4000082 thrsleep syz-fuzzer 13710 485736 38023 0 3 0x4000082 thrsleep syz-fuzzer 13710 514877 38023 0 3 0x4000082 kqread syz-fuzzer 38023 216163 15155 0 3 0x10008a sigsusp ksh 15155 71207 8610 0 3 0x9a select sshd 31193 521155 1 0 3 0x100083 ttyin getty 8610 208689 1 0 3 0x88 select sshd 71651 273758 64881 74 3 0x100092 bpf pflogd 64881 312229 1 0 3 0x80 netio pflogd 17629 345331 60661 73 3 0x100090 kqread syslogd 60661 462567 1 0 3 0x100082 netio syslogd 74182 522701 1 0 3 0x100080 kqread resolvd 98664 304609 22109 77 3 0x100092 kqread dhcpleased 54119 360830 22109 77 3 0x100092 kqread dhcpleased 22109 448930 1 0 3 0x80 kqread dhcpleased 78801 515149 0 0 3 0x14200 bored smr 77706 204608 0 0 2 0x14200 zerothread 76585 474381 0 0 3 0x14200 aiodoned aiodoned 99809 146253 0 0 3 0x14200 syncer update 57919 106289 0 0 3 0x14200 cleaner cleaner 70758 187519 0 0 3 0x14200 reaper reaper 12900 458268 0 0 3 0x14200 pgdaemon pagedaemon 24502 199352 0 0 3 0x14200 bored crynlk 95810 100075 0 0 3 0x14200 bored crypto 84794 225045 0 0 3 0x14200 bored viomb 93805 416084 0 0 3 0x40014200 acpi0 acpi0 90720 83800 0 0 3 0x40014200 idle1 55617 350080 0 0 3 0x14200 bored softnet 46275 264796 0 0 3 0x14200 bored systqmp 68420 146462 0 0 3 0x14200 bored systq 91271 50830 0 0 3 0x40014200 bored softclock 37642 347058 0 0 3 0x40014200 idle0 1 23560 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 92961 (syz-executor.1) thread 0xffff800021252540 (505203) shared rwlock vmmaplk r = 0 (0xfffffd806f035e80) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 uvm_share+0xd2 vm_map_lock_read_ln sys/uvm/uvm_map.c:5447 [inline] #1 uvm_share+0xd2 sys/uvm/uvm_map.c:3691 #2 vm_impl_init_vmx+0xb4 sys/arch/amd64/amd64/vmm.c:1591 #3 vm_create+0x19b vm_impl_init sys/arch/amd64/amd64/vmm.c:1690 [inline] #3 vm_create+0x19b sys/arch/amd64/amd64/vmm.c:1510 #4 vmmioctl+0x1f2 #5 VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 #6 vn_ioctl+0xba sys/kern/vfs_vnops.c:531 #7 sys_ioctl+0x4a2 #8 syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 #9 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd8008586748) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 rw_enter+0x3e2 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5425 #3 uvm_share+0xaa vm_map_lock_read_ln sys/uvm/uvm_map.c:5446 [inline] #3 uvm_share+0xaa sys/uvm/uvm_map.c:3691 #4 vm_impl_init_vmx+0xb4 sys/arch/amd64/amd64/vmm.c:1591 #5 vm_create+0x19b vm_impl_init sys/arch/amd64/amd64/vmm.c:1690 [inline] #5 vm_create+0x19b sys/arch/amd64/amd64/vmm.c:1510 #6 vmmioctl+0x1f2 #7 VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 #8 vn_ioctl+0xba sys/kern/vfs_vnops.c:531 #9 sys_ioctl+0x4a2 #10 syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 #11 Xsyscall+0x128 exclusive rwlock vmlistlock r = 0 (0xffff800000655c78) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 vm_create+0x12e vm_impl_init sys/arch/amd64/amd64/vmm.c:1688 [inline] #1 vm_create+0x12e sys/arch/amd64/amd64/vmm.c:1510 #2 vmmioctl+0x1f2 #3 VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 #4 vn_ioctl+0xba sys/kern/vfs_vnops.c:531 #5 sys_ioctl+0x4a2 #6 syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10118 6420K 6420K 78643K 11208 0 pcb 13 8K 8K 78643K 13 0 rtable 106 3K 3K 78643K 172 0 ifaddr 44 10K 10K 78643K 45 0 counters 44 34K 34K 78643K 44 0 ioctlops 1 2K 4K 78643K 1483 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 6 0 vnodes 1216 76K 76K 78643K 1222 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 6 17K 25K 78643K 39 0 proc 67 87K 111K 78643K 334 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 33 2K 2K 78643K 33 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 404 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 233 43K 43K 78643K 2145 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 10 0K 0K 78643K 10 0 temp 65 4195K 4259K 78643K 2358 0 kqueue 10 14K 14K 78643K 10 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 21 0 18 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 36 0 20 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 2119 0 2119 1 0 1 1 0 8 1 tcpcb 736 10 0 6 1 0 1 1 0 8 0 arp 120 6 0 0 1 0 1 1 0 8 0 inpcb 304 42 0 35 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 kcovpl 48 2 0 0 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 12 0 1 1 0 1 1 0 8 0 pfstkey 112 12 0 1 1 0 1 1 0 8 0 pfstate 320 12 0 1 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1443 0 32 89 0 89 89 0 8 0 ffsino 272 1443 0 32 95 0 95 95 0 8 0 nchpl 144 1677 0 57 61 0 61 61 0 8 0 uvmvnodes 72 1487 0 0 28 0 28 28 0 8 0 vnodes 224 1487 0 0 88 0 88 88 0 8 0 namei 1024 4695 0 4695 2 1 1 1 0 8 1 percpumem 16 34 0 0 1 0 1 1 0 8 0 vcpupl 2048 1 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 scxspl 216 4964 0 4964 10 2 8 8 0 8 8 plimitpl 152 17 0 8 1 0 1 1 0 8 0 sigapl 424 289 0 254 5 0 5 5 0 8 1 futexpl 56 73 0 73 1 0 1 1 0 8 1 knotepl 112 58 0 0 2 0 2 2 0 8 0 kqueuepl 216 11 0 0 1 0 1 1 0 8 0 pipepl 336 83 0 72 1 0 1 1 0 8 0 fdescpl 496 273 0 254 3 0 3 3 0 8 0 filepl 152 1254 0 1129 5 0 5 5 0 8 0 lockfpl 104 9 0 7 1 0 1 1 0 8 0 lockfspl 48 5 0 3 1 0 1 1 0 8 0 sessionpl 144 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 63 0 51 1 0 1 1 0 8 0 zombiepl 144 254 0 254 2 1 1 1 0 8 1 processpl 1072 289 0 254 3 0 3 3 0 8 0 procpl 672 307 0 263 4 0 4 4 0 8 0 sockpl 480 99 0 73 4 0 4 4 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 268 0 0 33 0 33 33 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 310 0 0 19 0 19 19 0 8 0 bufpl 280 3436 0 136 236 0 236 236 0 8 0 anonpl 24 58192 0 36624 133 2 131 131 0 186 1 amapchunkpl 152 4540 0 3862 30 2 28 28 0 158 0 amappl16 200 947 0 139 43 0 43 43 0 8 0 amappl14 184 7 0 1 1 0 1 1 0 8 0 amappl13 176 30 0 28 1 0 1 1 0 8 0 amappl12 168 17 0 12 1 0 1 1 0 8 0 amappl11 160 47 0 33 1 0 1 1 0 8 0 amappl10 152 41 0 35 1 0 1 1 0 8 0 amappl9 144 243 0 238 1 0 1 1 0 8 0 amappl8 136 360 0 327 2 0 2 2 0 8 0 amappl7 128 71 0 57 1 0 1 1 0 8 0 amappl6 120 132 0 120 1 0 1 1 0 8 0 amappl5 112 173 0 154 1 0 1 1 0 8 0 amappl4 104 571 0 548 1 0 1 1 0 8 0 amappl3 96 53 0 45 1 0 1 1 0 8 0 amappl2 88 475 0 421 2 0 2 2 0 8 0 amappl1 80 7949 0 7496 15 4 11 13 0 8 1 amappl 88 1829 0 1653 5 0 5 5 0 92 1 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 64 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 275 0 254 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 275 0 254 1 0 1 1 0 8 0 vmmpekpl 168 6582 0 6551 2 0 2 2 0 8 0 vmmpepl 168 29334 0 27087 134 0 134 134 0 357 36 vmsppl 368 274 0 254 2 0 2 2 0 8 0 rwobjpl 56 8598 0 7010 24 0 24 24 0 8 1 pdppl 4096 558 0 509 70 20 50 50 0 8 1 pvpl 32 178822 0 153334 208 1 207 207 0 265 0 pmappl 224 274 0 254 2 0 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 336 0 24 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff824526a8) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff824c05ca,ffffffff8244b560,e6,ffffffff824ced3e) at __assert+0x25 sys/kern/subr_prf.c:161 udv_reference(ffff800000b52480) at udv_reference+0x84 sys/uvm/uvm_device.c:230 uvm_mapent_clone(fffffd8008586730,0,3000,0,7,7) at uvm_mapent_clone+0x1a2 sys/uvm/uvm_map.c:3810 uvm_share(fffffd8008586730,0,7,fffffd806f035e68,20000000,200000) at uvm_share+0x45c uvm_mapent_share sys/uvm/uvm_map.c:3840 [inline] uvm_share(fffffd8008586730,0,7,fffffd806f035e68,20000000,200000) at uvm_share+0x45c sys/uvm/uvm_map.c:3739 vm_impl_init_vmx(ffff800023293a40,ffff800021252540) at vm_impl_init_vmx+0xb4 sys/arch/amd64/amd64/vmm.c:1591 vm_create(ffff800000b57800,ffff800021252540) at vm_create+0x19b vm_impl_init sys/arch/amd64/amd64/vmm.c:1690 [inline] vm_create(ffff800000b57800,ffff800021252540) at vm_create+0x19b sys/arch/amd64/amd64/vmm.c:1510 vmmioctl(a00,c5005601,ffff800000b57800,1,ffff800021252540) at vmmioctl+0x1f2 VOP_IOCTL(fffffd806e154830,c5005601,ffff800000b57800,1,fffffd807f7d86c0,ffff800021252540) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 vn_ioctl(fffffd80645e5280,c5005601,ffff800000b57800,ffff800021252540) at vn_ioctl+0xba sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800021252540,ffff800023291538,ffff800023291580) at sys_ioctl+0x4a2 syscall(ffff800023291600) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023291600) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x35472f3d600, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7ffffd9c30, count: 12 ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7ffffd9c30, count: -3