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 *431637 20674 32767 0x10 0x4000000 0K syz-executor 505146 44371 32767 0x10 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343e29b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e985d,ffffffff8342bef5,6cb,ffffffff8333e7f9) at __assert+0x29 uvm_fault_unwire_locked(fffffd8071d3d028,400000000000,400000011000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd8071d3d028,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80002a3d8368,1,4000000001c0,ffff80002a3d8398,0,522abeef9ef3ca50,1) at kern_sysctl_dirs+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] kern_sysctl_dirs(4e,ffff80002a3d8368,1,4000000001c0,ffff80002a3d8398,0,522abeef9ef3ca50,1) at kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 kern_sysctl(ffff80002a3d8364,2,4000000001c0,ffff80002a3d8398,0,37,c3c2a5dd8dadd79d) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 sys_sysctl(ffff8000ffff4f88,ffff80002a3d84d0,ffff80002a3d8420) at sys_sysctl+0x425 syscall(ffff80002a3d84d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3d84d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce0540904c0, 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(ffffffff8343e29b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e985d,ffffffff8342bef5,6cb,ffffffff8333e7f9) at __assert+0x29 uvm_fault_unwire_locked(fffffd8071d3d028,400000000000,400000011000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd8071d3d028,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80002a3d8368,1,4000000001c0,ffff80002a3d8398,0,522abeef9ef3ca50,1) at kern_sysctl_dirs+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] kern_sysctl_dirs(4e,ffff80002a3d8368,1,4000000001c0,ffff80002a3d8398,0,522abeef9ef3ca50,1) at kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 kern_sysctl(ffff80002a3d8364,2,4000000001c0,ffff80002a3d8398,0,37,c3c2a5dd8dadd79d) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 sys_sysctl(ffff8000ffff4f88,ffff80002a3d84d0,ffff80002a3d8420) at sys_sysctl+0x425 syscall(ffff80002a3d84d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3d84d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce0540904c0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a3d7f40 rbx 0xffffffff83824dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff8000ffff4f88 rax 0xffffffff83823ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4397fa4d9d9bd07 r11 0x18e64380cf3c5a10 r12 0xffffffff83824bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff82618595 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a3d7f30 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=431637 pid=20674 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=74, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff4a68,0xffff8000ffff5748 process=0xffff80003a8f1940 user=0xffff80002a3d3000, vmspace=0xfffffd8071d3d028 estcpu=24, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20674 507954 96034 32767 2 0x10 syz-executor *20674 431637 96034 32767 7 0x4000010 syz-executor 20674 43677 96034 32767 2 0x4000010 syz-executor 30333 398616 42044 32767 2 0x10 syz-executor 30333 310690 42044 32767 3 0x4000090 fsleep syz-executor 79990 37217 9240 32767 2 0x10 syz-executor 11757 410855 55493 0 2 0x2 syz-executor 62866 510078 0 0 3 0x14200 bored sosplice 83997 97471 49389 32767 2 0x10 syz-executor 44371 505146 45351 32767 7 0x10 syz-executor 96034 337126 63151 32767 3 0x90 nanoslp syz-executor 56772 508614 26034 32767 3 0x90 piperd syz-executor 9240 24319 5706 32767 3 0x90 nanoslp syz-executor 42044 393149 6490 32767 3 0x90 nanoslp syz-executor 49389 520610 55493 0 3 0x82 wait syz-executor 45351 113828 55493 0 3 0x82 wait syz-executor 63151 80322 55493 0 3 0x82 wait syz-executor 6490 13341 55493 0 3 0x82 wait syz-executor 5706 193632 55493 0 3 0x82 wait syz-executor 26034 411070 55493 0 3 0x82 wait syz-executor 55493 32439 32864 0 3 0x82 nanoslp syz-executor 32864 88265 96893 0 3 0x10008a sigsusp ksh 96893 333814 69872 0 3 0x98 kqread sshd-session 69872 485023 30330 0 3 0x92 kqread sshd-session 80258 437998 1 0 3 0x100083 ttyin getty 30330 222240 1 0 3 0x88 kqread sshd 72549 9478 80349 73 3 0x1100090 kqread syslogd 80349 9989 1 0 3 0x100082 sbwait syslogd 52880 68243 1 0 3 0x100080 kqread resolvd 1131 293561 50904 77 3 0x100092 kqread dhcpleased 95810 56 50904 77 3 0x100092 kqread dhcpleased 50904 140571 1 0 3 0x80 kqread dhcpleased 81770 442667 0 0 3 0x14200 bored smr 70270 303575 0 0 2 0x14200 zerothread 80351 338552 0 0 3 0x14200 aiodoned aiodoned 12074 19573 0 0 3 0x14200 syncer update 94989 99828 0 0 3 0x14200 cleaner cleaner 59470 86436 0 0 3 0x14200 reaper reaper 15874 323815 0 0 3 0x14200 pgdaemon pagedaemon 84899 276894 0 0 3 0x14200 bored viomb 56928 392659 0 0 3 0x40014200 acpi0 acpi0 51920 90203 0 0 3 0x40014200 idle1 45727 210113 0 0 3 0x14200 bored softnet3 30360 342436 0 0 3 0x14200 bored softnet2 3705 351170 0 0 3 0x14200 bored softnet1 70380 152210 0 0 3 0x14200 bored softnet0 93425 380028 0 0 3 0x14200 bored systqmp 86892 411322 0 0 3 0x14200 bored systq 67759 69716 0 0 3 0x14200 tmoslp softclockmp 54574 15060 0 0 3 0x40014200 tmoslp softclock 70723 306282 0 0 3 0x40014200 idle0 1 429133 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 20674 (syz-executor) thread 0xffff8000ffff4f88 (431637) exclusive rwlock amaplk r = 0 (0xfffffd807d039628) #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+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] #5 kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 #6 kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 #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 (0xfffffd8071d3d128) #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+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] #3 kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 #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 (0xffffffff838cec88) #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 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #6 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #8 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1681 #9 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:195 #10 kern_sysctl_dirs+0x247 sys/kern/kern_sysctl.c:426 #11 kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 #12 sys_sysctl+0x425 #13 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8387b278) #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:185 #3 kern_sysctl_dirs+0x247 sys/kern/kern_sysctl.c:426 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 #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 83997 (syz-executor) thread 0xffff8000ffff8a58 (97471) exclusive rrwlock inode r = 0 (0xfffffd806bd7a0a0) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3111 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c507880) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3096 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10180 10949K 10966K 166960K 11265 0 pcb 17 12K 12K 166960K 17 0 rtable 192 5K 6K 166960K 348 0 pf 27 16K 16K 166960K 31 0 ifaddr 34 6K 7K 166960K 44 0 ifgroup 42 1K 2K 166960K 50 0 sysctl 1 1K 1K 166960K 1 0 counters 60 35K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 8K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1332 84K 84K 166960K 1617 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 62K 113K 166960K 319 0 sigio 0 0K 0K 166960K 3 0 proc 58 79K 115K 166960K 485 0 subproc 54 3K 4K 166960K 306 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 31 0 in_multi 77 5K 7K 166960K 104 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 371 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 180 56K 79K 166960K 3557 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 39 78K 106K 166960K 1323 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 9 0K 2K 166960K 27 0 temp 33 8639K 8705K 166960K 4447 0 kqueue 13 20K 28K 166960K 45 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 35 0 32 1 0 1 1 0 8 0 rtentry 112 112 0 23 4 0 4 4 0 8 0 unpcb 144 142 0 127 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 113 0 107 7 0 7 7 0 8 6 arp 120 18 0 4 1 0 1 1 0 8 0 inpcb 376 213 0 204 5 0 5 5 0 8 3 nd6 136 25 0 6 1 0 1 1 0 8 0 kcovpl 48 34 0 28 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 458 0 88 29 0 29 29 0 8 4 art_table 32 459 0 88 4 0 4 4 0 8 0 art_node 16 111 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1708 0 176 96 0 96 96 0 8 0 ffsino 280 1708 0 176 110 0 110 110 0 8 0 nchpl 144 1990 0 290 64 0 64 64 0 8 0 uvmvnodes 80 2023 0 0 42 0 42 42 0 8 0 vnodes 216 2023 0 0 113 0 113 113 0 8 0 namei 1024 6131 0 6130 2 0 2 2 0 8 1 percpumem 16 46 0 2 1 0 1 1 0 8 0 kstatmem 264 22 0 4 2 0 2 2 0 8 0 scxspl 216 6632 0 6632 9 1 8 8 1 8 8 plimitpl 152 133 0 113 2 0 2 2 0 8 1 sigapl 424 540 0 491 7 0 7 7 0 8 0 futexpl 64 1172 0 1171 1 0 1 1 0 8 0 knotepl 120 314 0 0 10 0 10 10 0 8 0 kqueuepl 216 50 0 41 1 0 1 1 0 8 0 pipepl 328 195 0 168 4 0 4 4 0 8 0 fdescpl 504 521 0 491 7 1 6 6 0 8 1 filepl 152 2231 0 2049 11 0 11 11 0 8 3 lockfpl 104 36 0 33 1 0 1 1 0 8 0 lockfspl 48 12 0 9 1 0 1 1 0 8 0 sessionpl 144 49 0 35 1 0 1 1 0 8 0 pgrppl 48 85 0 64 1 0 1 1 0 8 0 ucredpl 104 261 0 244 1 0 1 1 0 8 0 zombiepl 144 491 0 491 1 0 1 1 0 8 1 processpl 1168 540 0 491 5 0 5 5 0 8 0 procpl 656 655 0 603 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 688 394 0 367 7 0 7 7 0 8 3 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 110 0 0 14 0 14 14 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 206 0 0 13 0 13 13 0 8 0 bufpl 280 2350 0 124 159 0 159 159 0 8 0 anonpl 24 111110 0 108380 44 1 43 43 0 184 22 amapchunkpl 152 11046 0 10674 27 0 27 27 0 158 9 amappl16 200 2313 0 2297 14 0 14 14 0 8 12 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 104 0 94 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1148 0 1120 2 0 2 2 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 39 0 39 1 1 0 1 0 8 0 amappl9 144 277 0 275 1 0 1 1 0 8 0 amappl8 136 50 0 49 1 0 1 1 0 8 0 amappl7 128 130 0 120 1 0 1 1 0 8 0 amappl6 120 175 0 170 1 0 1 1 0 8 0 amappl5 112 147 0 141 1 0 1 1 0 8 0 amappl4 104 293 0 280 1 0 1 1 0 8 0 amappl3 96 1797 0 1711 4 0 4 4 0 8 1 amappl2 88 616 0 564 2 0 2 2 0 8 0 amappl1 80 8311 0 7800 13 0 13 13 0 8 0 amappl 88 3189 0 3056 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 521 0 491 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 521 0 491 1 0 1 1 0 8 0 vmmpekpl 168 6353 0 6313 3 0 3 3 0 8 0 vmmpepl 168 39105 0 37485 88 0 88 88 0 357 7 vmsppl 456 520 0 491 7 1 6 6 0 8 1 rwobjpl 64 15982 0 13212 47 0 47 47 0 8 1 pdppl 4096 1050 0 982 104 28 76 94 0 8 8 pvpl 32 12498 0 0 101 0 101 101 0 265 0 pmappl 248 520 0 491 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 292 0 31 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(ffffffff8343e29b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833e985d,ffffffff8342bef5,6cb,ffffffff8333e7f9) at __assert+0x29 uvm_fault_unwire_locked(fffffd8071d3d028,400000000000,400000011000) at uvm_fault_unwire_locked+0x4c1 uvm_fault_unwire(fffffd8071d3d028,400000000000,400000011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(4e,ffff80002a3d8368,1,4000000001c0,ffff80002a3d8398,0,522abeef9ef3ca50,1) at kern_sysctl_dirs+0x340 sysctl_vsunlock sys/kern/kern_sysctl.c:213 [inline] kern_sysctl_dirs(4e,ffff80002a3d8368,1,4000000001c0,ffff80002a3d8398,0,522abeef9ef3ca50,1) at kern_sysctl_dirs+0x340 sys/kern/kern_sysctl.c:430 kern_sysctl(ffff80002a3d8364,2,4000000001c0,ffff80002a3d8398,0,37,c3c2a5dd8dadd79d) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:524 sys_sysctl(ffff8000ffff4f88,ffff80002a3d84d0,ffff80002a3d8420) at sys_sysctl+0x425 syscall(ffff80002a3d84d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3d84d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xce0540904c0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029aabff0) 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(ffffffff838cea80) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838cea80) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80003a9068f0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a9068f0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b6367238b10, count: 9 ddb{1}> trace x86_ipi_db(ffff800029aabff0) 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(ffffffff838cea80) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838cea80) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80003a9068f0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a9068f0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b6367238b10, count: -6