uvm_fault(0xfffffd806c1ec018, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81f21268 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c445450 gsbase 0xffff8000299edff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81f21268 Starting stack trace... panic(ffffffff833b3c24) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c4453a0) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff8000016a7000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,41,2000,ffff80003c424fd0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,41,2000,ffff80003c424fd0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c445550) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807af6c380,41,fffffd80097fb680,ffff80003c424fd0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c1c1180,ffff80003c424fd0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c1c1180,ffff80003c424fd0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c1c1180,ffff80003c424fd0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c1c1180,ffff80003c424fd0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c424fd0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c424fd0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c424fd0,ffff80003c4458c0,ffff80003c445810) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c4458c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4458c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77919829da30, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON TRAP EXIT 4 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 422585 51156 0 0 0 0 syz-executor *494113 68900 0 0 0 1 syz-executor proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7081b5645270, count: 14 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}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806c1ec018, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7081b5645270, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c43d300 rbx 0 rdx 0 rcx 0xffff8000fffefa08 rax 0x2a r8 0xffff80003c43d230 r9 0x1 r10 0xb4909d4cd61ed802 r11 0x5abe6d8936fdc9ca r12 0 r13 0xffffffff813cc8c8 Xdoreti+0x18 r14 0 r15 0 rip 0xffffffff82a2a4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c43d280 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=494113 pid=68900 tcnt=2 stat=onproc flags process=0 proc=0 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c424fd0,0xffff80003c424818 process=0xffff80002a3cce88 user=0xffff80003c438000, vmspace=0xfffffd806c1ec3e8 estcpu=36, cpticks=5, pctcpu=0.0, user=4, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51156 422585 91431 0 7 0 syz-executor *68900 494113 38206 0 7 0 syz-executor 68900 234415 38206 0 3 0x4000080 bell syz-executor 74992 347554 7104 0 3 0x80 nanoslp syz-executor 74992 209030 7104 0 3 0x4000000 biowait syz-executor 74992 448361 7104 0 3 0x4000080 fsleep syz-executor 65684 378015 68212 0 3 0x3000 suspend syz-executor 65684 133158 68212 0 3 0x4081000 smrbar syz-executor 65684 336457 68212 0 3 0x4081000 clonelk syz-executor 57195 504027 50797 0 2 0 syz-executor 57195 233564 50797 0 3 0x4000000 biowait syz-executor 57195 337579 50797 0 3 0x4000080 fsleep syz-executor 57195 69458 50797 0 3 0x4000080 fsleep syz-executor 57195 196857 50797 0 3 0x4000080 fsleep syz-executor 57195 455160 50797 0 3 0x4000080 fsleep syz-executor 44532 310233 59269 0 4 0x82000 syz-executor 44532 245923 59269 0 3 0x4082000 biowait syz-executor 44532 233920 59269 0 3 0x4002000 suspend syz-executor 7104 226452 40840 0 3 0x82 nanoslp syz-executor 22274 419051 0 0 3 0x14200 acct acct 61266 367262 1 0 3 0x100083 ttyin getty 59269 504758 40840 0 3 0x82 nanoslp syz-executor 38206 129345 40840 0 3 0x82 nanoslp syz-executor 24590 489127 0 0 3 0x14280 nfsidl nfsio 64405 6927 0 0 3 0x14280 nfsidl nfsio 90951 423114 0 0 3 0x14280 nfsidl nfsio 68051 259082 0 0 3 0x14280 nfsidl nfsio 14101 420639 0 0 3 0x14280 nfsidl nfsio 15393 194069 0 0 3 0x14280 nfsidl nfsio 86722 302619 0 0 3 0x14280 nfsidl nfsio 67660 258518 0 0 3 0x14280 nfsidl nfsio 36706 452373 0 0 3 0x14280 nfsidl nfsio 13779 207850 0 0 3 0x14280 nfsidl nfsio 56591 487066 0 0 3 0x14280 nfsidl nfsio 63020 47011 0 0 3 0x14280 nfsidl nfsio 19881 398852 0 0 3 0x14280 nfsidl nfsio 89802 326113 0 0 3 0x14280 nfsidl nfsio 29340 116405 0 0 3 0x14280 nfsidl nfsio 99568 174883 0 0 3 0x14280 nfsidl nfsio 12352 499468 0 0 3 0x14280 nfsidl nfsio 65146 135671 0 0 3 0x14280 nfsidl nfsio 90582 211810 0 0 3 0x14280 nfsidl nfsio 87244 378001 0 0 3 0x14280 nfsidl nfsio 33616 240455 0 0 3 0x14200 bored sosplice 91431 154452 40840 0 3 0x82 nanoslp syz-executor 64412 507185 40840 0 3 0x82 nanoslp syz-executor 50797 486048 40840 0 2 0x2 syz-executor 81016 436983 40840 0 3 0x82 wait syz-executor 68212 441978 40840 0 3 0x82 nanoslp syz-executor 40840 349588 94308 0 3 0x82 kqread syz-executor 94308 131674 68503 0 3 0x10008a sigsusp ksh 68503 125563 45903 0 3 0x98 kqread sshd-session 45903 230924 90801 0 3 0x92 kqread sshd-session 90801 295436 1 0 3 0x88 kqread sshd 29781 504075 88851 74 3 0x1100092 bpf pflogd 88851 273541 1 0 3 0x80 sbwait pflogd 96030 149335 31770 73 3 0x1100090 kqread syslogd 31770 403163 1 0 3 0x100082 sbwait syslogd 82128 427876 1 0 3 0x100080 kqread resolvd 97090 108190 54534 77 3 0x100092 kqread dhcpleased 93249 392738 54534 77 3 0x100092 kqread dhcpleased 54534 515989 1 0 3 0x80 kqread dhcpleased 98831 168379 0 0 3 0x14200 bored smr 63086 174226 0 0 3 0x14200 pgzero zerothread 7013 316129 0 0 3 0x14200 aiodoned aiodoned 88854 413062 0 0 3 0x14200 syncer update 89351 422983 0 0 3 0x14200 cleaner cleaner 39412 58907 0 0 3 0x14200 reaper reaper 17085 418608 0 0 3 0x14200 pgdaemon pagedaemon 92718 190253 0 0 3 0x14200 bored viomb 50833 56622 0 0 3 0x40014200 acpi0 acpi0 46753 510113 0 0 3 0x40014200 idle1 41127 394005 0 0 3 0x14200 bored softnet1 58852 31114 0 0 3 0x14200 netlock softnet0 26520 65695 0 0 3 0x14200 smrbar systqmp 10483 262852 0 0 3 0x14200 bored systq 75263 341062 0 0 3 0x14200 tmoslp softclockmp 4523 111827 0 0 3 0x40014200 tmoslp softclock 95493 422374 0 0 3 0x40014200 idle0 1 129011 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 74992 (syz-executor) thread 0xffff800037bef248 (209030) exclusive rrwlock inode r = 0 (0xfffffd806e9f07d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 65684 (syz-executor) thread 0xffff80003c43fcb0 (133158) exclusive rwlock clonelk r = 0 (0xffffffff837a7718) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 if_clone_destroy+0x67 sys/net/if.c:-1 #3 ifioctl+0x59d sys/net/if.c:2092 #4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #6 Xsyscall+0x128 Process 57195 (syz-executor) thread 0xffff80003c43f250 (233564) exclusive rrwlock inode r = 0 (0xfffffd806e09cc88) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 44532 (syz-executor) thread 0xffff80003c424aa0 (245923) exclusive rrwlock inode r = 0 (0xfffffd807546eec0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 26520 (systqmp) thread 0xffff8000ffffe000 (65695) shared rwlock systqmp r = 0 (0xffffffff838446c8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10217 11081K 14379K 166960K 14430 0 pcb 17 16K 17K 166960K 795 0 rtable 190 12K 14K 166960K 920 0 pf 36 18K 67486K 166960K 482 0 ifaddr 30 5K 9K 166960K 214 0 ifgroup 54 2K 3K 166960K 404 0 sysctl 4 1K 9K 166960K 41 0 counters 66 36K 38K 166960K 416 0 ioctlops 0 0K 4K 166960K 2447 0 iov 0 0K 28K 166960K 236 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1547 97K 98K 166960K 3793 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 616K 620K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 189 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 236K 166960K 3388 0 sigio 0 0K 0K 166960K 119 0 proc 73 131K 164K 166960K 1030 0 subproc 72 4K 4K 166960K 128 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 661 0 in_multi 36 2K 7K 166960K 316 0 ether_multi 1 0K 0K 166960K 57 0 mrt 2 0K 0K 166960K 41 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 950 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 281 191K 197K 166960K 32130 0 UVM aobj 146 4K 4K 166960K 149 0 pinsyscall 43 86K 103K 166960K 4778 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 213 0 NDP 11 0K 2K 166960K 155 0 temp 86 8656K 8916K 166960K 152465 0 kqueue 13 20K 35K 166960K 688 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 455 0 452 6 3 3 3 0 8 2 rtentry 176 273 0 209 6 0 6 6 0 8 0 unpcb 144 2134 0 2114 13 11 2 6 0 8 1 syncache 336 26 0 26 5 5 0 1 0 8 0 tcpqe 32 6 0 6 3 3 0 1 0 8 0 tcpcb 736 1283 0 1273 22 20 2 7 0 8 0 arp 136 46 0 30 1 0 1 1 0 8 0 inpcb 328 4239 0 4223 34 27 7 12 0 8 5 nd6 152 51 0 41 2 0 2 2 0 8 0 pkpcb 40 23 0 23 5 4 1 1 0 8 1 kcovpl 48 14 0 6 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 132 0 132 6 5 1 1 0 8 1 pppxif 1504 17 0 17 7 6 1 1 0 8 1 pfstscr 40 5 0 3 1 0 1 1 0 8 0 pffrag 232 22 0 11 1 0 1 1 0 482 0 pffrnode 88 20 0 9 1 0 1 1 0 8 0 pffrent 40 50 0 39 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 pfrktable 1344 5 0 5 1 1 0 1 0 8 0 pfanchor 1288 1 0 1 1 1 0 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 243 0 72 2 0 2 2 0 8 0 pfstkey 128 246 0 76 6 0 6 6 0 8 0 pfstate 384 243 0 74 19 0 19 19 0 8 0 pfrule 1344 90 0 85 2 1 1 2 0 8 0 rttmr 136 8 0 8 3 2 1 1 0 8 1 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 1081 0 857 30 7 23 30 0 8 4 art_table 40 1086 0 857 5 0 5 5 0 8 0 art_node 32 269 0 221 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 10 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 184 0 174 1 0 1 1 0 8 0 shmpl 112 146 0 3 5 0 5 5 0 8 0 dirhash 1024 41 0 24 3 0 3 3 0 8 0 dino2pl 256 7748 0 6224 96 0 96 96 0 8 0 ffsino 296 7748 0 6224 118 0 118 118 0 8 0 nchpl 144 12402 0 11842 64 42 22 64 0 8 0 rtmask 32 29 0 29 6 5 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 45608 0 45608 9 8 1 3 0 8 1 percpumem 16 223 0 175 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 258 0 232 5 2 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 14 0 14 5 4 1 1 0 8 1 scxspl 216 75690 0 75687 19 16 3 8 1 8 2 plimitpl 152 988 0 967 1 0 1 1 0 8 0 sigapl 424 3707 0 3637 10 1 9 9 0 8 0 knotepl 120 837 0 0 26 0 26 26 0 8 0 kqueuepl 224 1477 0 1468 18 13 5 5 0 8 4 pipepl 344 589 0 560 7 4 3 6 0 8 0 fdescpl 528 3663 0 3631 3 0 3 3 0 8 0 filepl 160 26547 0 26313 42 29 13 20 0 8 1 lockfpl 104 1483 0 1480 3 2 1 2 0 8 0 lockfspl 48 397 0 394 1 0 1 1 0 8 0 sessionpl 144 50 0 41 1 0 1 1 0 8 0 pgrppl 48 90 0 73 1 0 1 1 0 8 0 ucredpl 104 3959 0 3945 1 0 1 1 0 8 0 zombiepl 144 4010 0 4007 1 0 1 1 0 8 0 processpl 1232 3707 0 3637 7 1 6 6 0 8 0 procpl 664 9182 0 9100 9 1 8 8 0 8 0 sosppl 168 22 0 22 6 5 1 1 0 8 1 sockpl 752 6951 0 6912 55 44 11 18 0 8 6 mcl64k 65536 26 0 0 4 0 4 4 0 8 0 mcl16k 16384 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 132 0 0 17 0 17 17 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 63 0 0 6 0 6 6 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 272 0 0 16 0 16 16 0 8 0 bufpl 280 29571 0 23434 439 0 439 439 0 8 0 anonpl 32 12775 0 0 103 0 103 103 0 246 0 amapchunkpl 152 110925 0 110160 61 27 34 34 0 158 4 amappl16 200 11044 0 10755 50 34 16 21 0 8 0 amappl15 192 54 0 54 1 1 0 1 0 8 0 amappl14 184 13 0 13 5 4 1 1 0 8 1 amappl13 176 527 0 526 1 0 1 1 0 8 0 amappl12 168 4152 0 4108 3 0 3 3 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 46 0 32 1 0 1 1 0 8 0 amappl9 144 254 0 253 1 0 1 1 0 8 0 amappl8 136 29 0 26 1 0 1 1 0 8 0 amappl7 128 108 0 106 1 0 1 1 0 8 0 amappl6 120 381 0 367 1 0 1 1 0 8 0 amappl5 112 101 0 90 1 0 1 1 0 8 0 amappl4 104 595 0 564 1 0 1 1 0 8 0 amappl3 96 19869 0 19768 4 1 3 3 0 8 0 amappl2 88 3931 0 3853 3 0 3 3 0 8 0 amappl1 80 28914 0 28317 17 3 14 16 0 8 0 amappl 88 30544 0 30348 5 0 5 5 0 92 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 10 0 10 4 3 1 1 0 8 1 dma128 128 260 0 260 5 5 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 148 0 3 3 0 3 3 0 8 0 uaddrrnd 24 3663 0 3631 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3663 0 3631 1 0 1 1 0 8 0 vmmpekpl 168 30535 0 30485 3 0 3 3 0 8 0 vmmpepl 168 241890 0 239606 126 26 100 105 0 357 0 vmsppl 488 3662 0 3631 6 1 5 5 0 8 0 rwobjpl 80 68195 0 60896 152 2 150 151 0 8 0 pdppl 4096 7333 0 7262 145 72 73 85 0 8 2 pvpl 32 21253 0 0 172 1 171 171 0 265 0 pmappl 256 3662 0 3631 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 376 0 121 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8387cff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8391b820) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8391b820) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 softintr_dispatch(2) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(2) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsofttty() at Xsofttty+0x27 __mp_lock(ffffffff8391b820) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8391b820) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c516fb0,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4 sys/dev/kcov.c:153 syscall(ffff80003c517190) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80003c517190) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ff95154aa50, count: 1 ddb{0}> trace x86_ipi_db(ffffffff8387cff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8391b820) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8391b820) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 softintr_dispatch(2) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(2) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsofttty() at Xsofttty+0x27 __mp_lock(ffffffff8391b820) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8391b820) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c516fb0,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4 sys/dev/kcov.c:153 syscall(ffff80003c517190) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80003c517190) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ff95154aa50, count: -14 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7081b5645270, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7081b5645270, count: -1