uvm_fault(0xfffffd8069e11020, 0x20, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81a8632e cs 8 rflags 10246 cr2 20 cpl 0 rsp ffff80003c40c770 gsbase 0xffffffff8386bff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81a8632e Starting stack trace... panic(ffffffff833dc6e8) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c40c6c0) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b mtx_enter(18) at mtx_enter+0x9e sys/kern/kern_lock.c:406 clockintr_unbind(ffff80000169aa30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff8000015a2000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(41e60,1,2000,ffff800032bdf778) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(41e60,1,2000,ffff800032bdf778) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c40c940) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806c1efcf8,1,fffffd80097fd410,ffff800032bdf778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806cf9fc08,ffff800032bdf778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806cf9fc08,ffff800032bdf778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806cf9fc08,ffff800032bdf778) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806cf9fc08,ffff800032bdf778) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800032bdf778) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800032bdf778,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bdf778,ffff80003c40ccb0,ffff80003c40cc00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c40ccb0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40ccb0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e2e5f06d10, count: 240 End of stack trace. WARNI NdumGp: SPL N T4 LO,W1 notD OpNo sSsYiSbClAeL L 91 2019601656 EXIT 0 a Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *429381 57670 0 0x2 0 1 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x74267860ace0, 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}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu0: uvm_fault(0xfffffd8069e11020, 0x20, 0, 1) -> e ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x74267860ace0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a3be810 rbx 0 rdx 0 rcx 0xffff80002a281240 rax 0x3b r8 0xffff80002a3be740 r9 0x1 r10 0x83d7372326a8ee52 r11 0x5b283669b5048e2a r12 0 r13 0 r14 0xffff80002a281240 r15 0 rip 0xffffffff820f53ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a3be790 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=429381 pid=57670 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a280018,0xffff800032bdf4f0 process=0xffff8000fffef508 user=0xffff80002a3b9000, vmspace=0xfffffd80672063f8 estcpu=34, cpticks=25, pctcpu=0.6, user=0, sys=25, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 35994 258778 21037 0 2 0 syz-executor 35994 513893 21037 0 3 0x4000080 fsleep syz-executor 53109 397802 0 0 3 0x14200 acct acct 36834 507056 6428 0 2 0xc80 syz-executor 36834 146814 6428 0 3 0x4000080 fifor syz-executor 40228 344577 84453 0 2 0xc80 syz-executor 40228 29020 84453 0 3 0x4000080 wsevent_read syz-executor 40228 144587 84453 0 3 0x4000080 fsleep syz-executor 40228 357581 84453 0 3 0x4000080 fsleep syz-executor 38096 461351 50962 0 2 0x2 syz-executor 21636 71141 50962 0 2 0x2 syz-executor *57670 429381 50962 0 7 0x2 syz-executor 21037 367593 50962 0 2 0xc82 syz-executor 74106 366914 50962 0 2 0xc82 syz-executor 15225 206315 1 0 3 0x100083 ttyopn getty 99986 152034 0 0 3 0x14280 nfsidl nfsio 54435 499565 0 0 3 0x14280 nfsidl nfsio 3130 404821 50962 0 3 0x82 wait syz-executor 6428 126844 50962 0 2 0xc82 syz-executor 84453 138198 50962 0 2 0xc82 syz-executor 50962 81280 68268 0 3 0x82 kqread syz-executor 68268 92856 27843 0 3 0x10008a sigsusp ksh 27843 140780 13537 0 3 0x98 kqread sshd-session 13537 324256 59304 0 3 0x92 kqread sshd-session 59304 221534 1 0 3 0x88 kqread sshd 74753 46891 74058 74 3 0x1100092 bpf pflogd 74058 522213 1 0 3 0x80 sbwait pflogd 37760 408651 70749 73 3 0x1100090 kqread syslogd 70749 314868 1 0 3 0x100082 sbwait syslogd 80871 449024 1 0 3 0x100080 kqread resolvd 36667 395283 98250 77 3 0x100092 kqread dhcpleased 49879 90713 98250 77 3 0x100092 kqread dhcpleased 98250 249485 1 0 3 0x80 kqread dhcpleased 45179 36565 0 0 3 0x14200 bored smr 10894 438532 0 0 2 0x14200 zerothread 84053 474056 0 0 3 0x14200 aiodoned aiodoned 87946 346658 0 0 3 0x14200 syncer update 52964 28241 0 0 3 0x14200 cleaner cleaner 81129 474489 0 0 2 0x14200 reaper 4948 212134 0 0 3 0x14200 pgdaemon pagedaemon 76158 125667 0 0 3 0x14200 bored viomb 42850 79401 0 0 3 0x40014200 acpi0 acpi0 37920 253669 0 0 3 0x40014200 idle1 64921 137975 0 0 3 0x14200 bored softnet1 63038 351102 0 0 2 0x14200 softnet0 65393 504208 0 0 3 0x14200 bored systqmp 61169 388764 0 0 3 0x14200 bored systq 412 86220 0 0 3 0x14200 tmoslp softclockmp 8059 235238 0 0 3 0x40014200 tmoslp softclock 19834 290422 0 0 3 0x40014200 idle0 1 460492 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83a09190) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #3 uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 #4 amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 #5 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #6 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 #7 exit1+0x6fc sys/kern/kern_exit.c:260 #8 sys_exit+0x1a sys/kern/kern_exit.c:-1 #9 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 Process 40228 (syz-executor) thread 0xffff80002a2802b0 (29020) Process 38096 (syz-executor) thread 0xffff800032bde020 (461351) Process 21636 (syz-executor) thread 0xffff800032bdf4e0 (71141) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11109 12199K 12543K 166960K 17260 0 pcb 17 16K 18K 166960K 642 0 rtable 278 14K 15K 166960K 938 0 pf 42 19K 83K 166960K 345 0 ifaddr 44 9K 10K 166960K 234 0 ifgroup 55 2K 2K 166960K 416 0 sysctl 4 1K 17K 166960K 27 0 counters 70 37K 38K 166960K 530 0 ioctlops 0 0K 5K 166960K 2179 0 iov 0 0K 16K 166960K 362 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1417 89K 89K 166960K 4071 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 34 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 128 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 106K 166960K 2758 0 sigio 0 0K 0K 166960K 160 0 proc 73 115K 163K 166960K 1104 0 subproc 72 4K 4K 166960K 144 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 379 0 in_multi 102 7K 7K 166960K 321 0 ether_multi 1 0K 0K 166960K 37 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 944 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 246 160K 178K 166960K 26806 0 UVM aobj 119 19K 21K 166960K 192 0 pinsyscall 41 82K 98K 166960K 4190 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 204 0 NDP 12 0K 2K 166960K 163 0 temp 88 8680K 8808K 166960K 126573 0 kqueue 13 20K 33K 166960K 490 0 SYN cache 2 8K 16K 166960K 3 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 120 264 0 261 2 1 1 2 0 8 0 rtentry 176 298 0 186 6 0 6 6 0 8 0 unpcb 144 2042 0 2023 19 15 4 6 0 8 3 syncache 336 20 0 20 7 6 1 1 0 8 1 tcpqe 32 4 0 4 3 3 0 1 0 8 0 tcpcb 736 901 0 895 22 18 4 7 0 8 3 arp 136 43 0 21 1 0 1 1 0 8 0 inpcb 328 3083 0 3072 27 20 7 7 0 8 5 nd6 152 53 0 26 2 0 2 2 0 8 0 pkpcb 40 15 0 15 7 7 0 1 0 8 0 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 182 0 182 3 2 1 1 0 8 1 pppxif 1504 34 0 34 3 3 0 1 0 8 0 pfstscr 40 3 0 3 1 1 0 1 0 8 0 pffrag 232 37 0 29 1 0 1 1 0 482 0 pffrnode 88 18 0 10 1 0 1 1 0 8 0 pffrent 40 68 0 60 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 3 0 3 2 2 0 1 0 8 0 pfanchor 1288 5 0 0 1 0 1 1 0 8 0 pfqueue 320 2 0 2 2 2 0 1 0 8 0 pfstitem 24 105 0 82 1 0 1 1 0 8 0 pfstkey 128 122 0 102 3 0 3 3 0 8 0 pfstate 448 113 0 95 8 0 8 8 0 8 0 pfrule 1344 30 0 24 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 2 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1153 0 681 43 13 30 31 0 8 0 art_table 40 1157 0 681 5 0 5 5 0 8 0 art_node 32 280 0 180 1 0 1 1 0 8 0 sysvmsgpl 40 81 0 73 2 1 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 125 0 115 1 0 1 1 0 8 0 shmpl 112 115 0 5 4 0 4 4 0 8 0 dirhash 1024 37 0 20 3 0 3 3 0 8 0 dino2pl 256 6549 0 5031 96 0 96 96 0 8 0 ffsino 296 6549 0 5031 118 0 118 118 0 8 0 nchpl 144 10482 0 9843 66 41 25 64 0 8 0 rtmask 32 29 0 29 8 7 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 36689 0 36689 7 3 4 5 0 8 4 percpumem 16 280 0 230 1 0 1 1 0 8 0 vcpupl 3968 7 0 1 2 1 1 1 0 8 0 vmpool 848 74 0 68 2 1 1 1 0 8 0 kstatmem 264 262 0 236 4 1 3 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 15 0 15 5 5 0 1 0 8 0 scxspl 216 65237 0 65237 13 12 1 8 1 8 1 plimitpl 152 813 0 795 1 0 1 1 0 8 0 sigapl 424 3075 0 3025 6 0 6 6 0 8 0 knotepl 120 594 0 0 17 0 17 17 0 8 0 kqueuepl 224 1204 0 1195 16 11 5 5 0 8 4 pipepl 344 464 0 436 10 7 3 9 0 8 0 fdescpl 528 3047 0 3017 3 0 3 3 0 8 0 filepl 160 21327 0 21099 43 27 16 26 0 8 3 lockfpl 104 1218 0 1214 2 1 1 2 0 8 0 lockfspl 48 383 0 379 1 0 1 1 0 8 0 sessionpl 144 46 0 37 1 0 1 1 0 8 0 pgrppl 48 152 0 135 1 0 1 1 0 8 0 ucredpl 104 3384 0 3370 1 0 1 1 0 8 0 zombiepl 144 3804 0 3801 1 0 1 1 0 8 0 processpl 1232 3075 0 3025 5 0 5 5 0 8 0 procpl 664 7590 0 7535 6 0 6 6 0 8 0 sosppl 176 23 0 23 3 2 1 1 0 8 1 sockpl 752 5508 0 5475 44 33 11 18 0 8 6 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 39 0 0 5 0 5 5 0 8 0 mtagpl 96 287 0 0 7 0 7 7 0 8 0 mbufpl 256 564 0 0 34 0 34 34 0 8 0 bufpl 280 25745 0 19609 439 0 439 439 0 8 0 anonpl 32 14290 0 0 115 0 115 115 0 246 0 amapchunkpl 152 91949 0 91376 62 31 31 41 0 158 0 amappl16 200 10175 0 9842 89 59 30 31 0 8 3 amappl15 192 9 0 9 2 2 0 1 0 8 0 amappl14 184 8 0 8 1 1 0 1 0 8 0 amappl13 176 545 0 544 1 0 1 1 0 8 0 amappl12 168 3540 0 3500 3 0 3 3 0 8 0 amappl11 160 27 0 25 1 0 1 1 0 8 0 amappl10 152 48 0 34 1 0 1 1 0 8 0 amappl9 144 253 0 253 1 1 0 1 0 8 0 amappl8 136 42 0 38 1 0 1 1 0 8 0 amappl7 128 117 0 115 1 0 1 1 0 8 0 amappl6 120 397 0 383 1 0 1 1 0 8 0 amappl5 112 94 0 82 1 0 1 1 0 8 0 amappl4 104 556 0 523 2 1 1 2 0 8 0 amappl3 96 18943 0 18844 5 1 4 4 0 8 0 amappl2 88 751 0 689 2 0 2 2 0 8 0 amappl1 80 24192 0 23612 17 3 14 16 0 8 0 amappl 88 25425 0 25259 5 0 5 5 0 92 0 uvmvnodes 80 182 0 0 4 0 4 4 0 8 0 dma65536 65536 3 0 3 3 2 1 1 0 8 1 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 9 0 9 4 4 0 1 0 8 0 dma128 128 260 0 260 6 6 0 1 0 8 0 dma64 64 10 0 10 5 5 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 72 191 0 73 3 0 3 3 0 8 0 uaddrrnd 24 3047 0 3017 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3047 0 3017 1 0 1 1 0 8 0 vmmpekpl 168 24609 0 24556 3 0 3 3 0 8 0 vmmpepl 168 201952 0 199794 151 38 113 113 0 357 1 vmsppl 488 3046 0 3016 6 1 5 5 0 8 0 rwobjpl 80 54127 0 52582 45 7 38 38 0 8 1 pdppl 4096 6249 0 6174 139 60 79 80 0 8 4 pvpl 32 22788 0 0 183 0 183 183 0 265 0 pmappl 256 3120 0 3084 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 401 0 109 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8386bff0) 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(ffffffff83951300) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83951300) at __mp_lock+0x192 sys/kern/kern_lock.c:173 scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f scsi_iopool_get sys/scsi/scsi_base.c:260 [inline] scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f sys/scsi/scsi_base.c:655 sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sd_flush sys/scsi/sd.c:-1 [inline] sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sys/scsi/sd.c:271 config_suspend(ffff8000002a2c00,6) at config_suspend+0x62 sys/kern/subr_autoconf.c:834 scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_link sys/scsi/scsiconf.c:410 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_bus sys/scsi/scsiconf.c:360 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab sys/scsi/scsiconf.c:259 config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 pciactivate(ffff80000002ce00,6) at pciactivate+0xd8 sys/dev/pci/pci.c:230 config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_suspend_all(6) at config_suspend_all+0x49a config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_suspend_all(6) at config_suspend_all+0x49a sys/kern/subr_autoconf.c:858 end trace frame: 0xffff80003c40c590, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8386bff0) 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(ffffffff83951300) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83951300) at __mp_lock+0x192 sys/kern/kern_lock.c:173 scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f scsi_iopool_get sys/scsi/scsi_base.c:260 [inline] scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f sys/scsi/scsi_base.c:655 sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sd_flush sys/scsi/sd.c:-1 [inline] sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sys/scsi/sd.c:271 config_suspend(ffff8000002a2c00,6) at config_suspend+0x62 sys/kern/subr_autoconf.c:834 scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_link sys/scsi/scsiconf.c:410 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_bus sys/scsi/scsiconf.c:360 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab sys/scsi/scsiconf.c:259 config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 pciactivate(ffff80000002ce00,6) at pciactivate+0xd8 sys/dev/pci/pci.c:230 config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_suspend_all(6) at config_suspend_all+0x49a config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_suspend_all(6) at config_suspend_all+0x49a sys/kern/subr_autoconf.c:858 boot(104) at boot+0x253 sys/arch/amd64/amd64/machdep.c:946 reboot(104) at reboot+0xb1 panic(ffffffff833dc6e8) at panic+0x1f9 kerntrap(ffff80003c40c6c0) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b mtx_enter(18) at mtx_enter+0x9e sys/kern/kern_lock.c:406 clockintr_unbind(ffff80000169aa30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff8000015a2000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(41e60,1,2000,ffff800032bdf778) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(41e60,1,2000,ffff800032bdf778) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c40c940) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806c1efcf8,1,fffffd80097fd410,ffff800032bdf778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806cf9fc08,ffff800032bdf778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806cf9fc08,ffff800032bdf778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806cf9fc08,ffff800032bdf778) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806cf9fc08,ffff800032bdf778) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800032bdf778) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800032bdf778,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800032bdf778,ffff80003c40ccb0,ffff80003c40cc00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c40ccb0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40ccb0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76e2e5f06d10, count: -33 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x688 savectx() at savectx+0xae end of kernel end trace frame: 0x74267860ace0, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x74267860ace0, count: -1