uvm_fault(0xfffffd805d9479b8, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff82606a08 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c4697e0 gsbase 0xffffffff8385bff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff82606a08 Starting stack trace... panic(ffffffff833e0b41) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c469730) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001690000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,81,2000,ffff80002f7d9778) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80002f7d9778) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4698e0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8060a4c880,81,fffffd80097fd7b8,ffff80002f7d9778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806d2a4d48,ffff80002f7d9778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806d2a4d48,ffff80002f7d9778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806d2a4d48,ffff80002f7d9778) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806d2a4d48,ffff80002f7d9778) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002f7d9778) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002f7d9778,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002f7d9778,ffff80003c469c50,ffff80003c469ba0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c469c50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c469c50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x741d7b8b64e0, count: 242 End of stack trace. WA RNINdG:u mpS PtLo NdOevT L O4W,1E REnDot ONpo SsYsiSbCAlLeL 91 2072732872 EXIT 0 a Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *434288 37285 0 0x2 0 1 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x741d7b8b64b0, 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 *cpu0: uvm_fault(0xfffffd805d9479b8, 0x0, 0, 1) -> e ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x741d7b8b64b0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c43bf80 rbx 0 rdx 0 rcx 0xffff8000fffe87f0 rax 0x3b r8 0xffff80003c43beb0 r9 0xffff80003c43bb78 r10 0x230e0ba688f8e3fe r11 0xf6566ea5b11bad25 r12 0 r13 0 r14 0xffff8000fffe87f0 r15 0 rip 0xffffffff8178f3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80003c43bf00 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=434288 pid=37285 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2842b0,0xffff8000fffe8fc8 process=0xffff8000fffee698 user=0xffff80003c436000, vmspace=0xfffffd806ddf6210 estcpu=32, cpticks=169, pctcpu=0.52, user=2, sys=166, intr=1 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 3107 520182 74643 0 2 0 syz-executor 3107 427892 74643 0 2 0x4000000 syz-executor 3107 26239 74643 0 3 0x4000080 fsleep syz-executor 11030 71094 96066 0 2 0xc80 syz-executor 11030 483513 96066 0 3 0x4000080 fsleep syz-executor 11030 206919 96066 0 3 0x4000080 fifor syz-executor 44617 500838 15887 60929 2 0xc90 syz-executor 44617 469411 15887 60929 3 0x4000090 kqsel syz-executor 44617 266380 15887 60929 3 0x4000090 fsleep syz-executor 72150 342641 70528 0 2 0xc80 syz-executor 72150 46304 70528 0 3 0x4000080 rest syz-executor 72150 341725 70528 0 3 0x4000080 fsleep syz-executor 96958 61666 30094 0 2 0xc80 syz-executor 96958 358557 30094 0 3 0x4000080 fsleep syz-executor 96958 458686 30094 0 3 0x4000080 ttyout syz-executor 96958 171176 30094 0 3 0x4000080 fsleep syz-executor 8165 111278 1 0 2 0x100083 getty 96448 3707 0 0 3 0x14280 nfsidl nfsio 46945 206883 0 0 3 0x14280 nfsidl nfsio 63682 92107 0 0 3 0x14280 nfsidl nfsio 30094 482110 7989 0 2 0xc82 syz-executor *37285 434288 7989 0 7 0x2 syz-executor 15887 138414 7989 0 2 0xc82 syz-executor 94879 60130 7989 0 3 0x82 wait syz-executor 74643 121807 7989 0 2 0xc82 syz-executor 96066 88592 7989 0 2 0xc82 syz-executor 95624 236974 7989 0 2 0xc82 syz-executor 70528 397832 7989 0 2 0xc82 syz-executor 7989 225683 28442 0 2 0x2 syz-executor 28442 500325 7883 0 3 0x10008a sigsusp ksh 7883 279343 41941 0 3 0x98 kqread sshd-session 41941 353021 31912 0 3 0x92 kqread sshd-session 31912 456038 1 0 3 0x88 kqread sshd 63349 455915 84887 74 3 0x1100092 bpf pflogd 84887 337963 1 0 3 0x80 sbwait pflogd 16658 12279 55129 73 3 0x1100090 kqread syslogd 55129 197429 1 0 3 0x100082 sbwait syslogd 37724 4194 1 0 3 0x100080 kqread resolvd 69226 510547 58353 77 3 0x100092 kqread dhcpleased 87516 45264 58353 77 3 0x100092 kqread dhcpleased 58353 15674 1 0 3 0x80 kqread dhcpleased 86749 150517 0 0 3 0x14200 bored smr 73928 464812 0 0 2 0x14200 zerothread 34830 55848 0 0 3 0x14200 aiodoned aiodoned 5922 4647 0 0 3 0x14200 syncer update 17470 85295 0 0 3 0x14200 cleaner cleaner 29278 399355 0 0 2 0x14200 reaper 10591 220499 0 0 3 0x14200 pgdaemon pagedaemon 10392 153789 0 0 3 0x14200 bored viomb 93452 130760 0 0 3 0x40014200 acpi0 acpi0 28884 10755 0 0 3 0x40014200 idle1 87480 101438 0 0 3 0x14200 bored softnet1 37542 18205 0 0 2 0x14200 softnet0 46772 61288 0 0 3 0x14200 bored systqmp 55826 116294 0 0 3 0x14200 bored systq 26235 446133 0 0 2 0x14200 softclockmp 41269 459952 0 0 3 0x40014200 tmoslp softclock 96556 72019 0 0 3 0x40014200 idle0 1 282500 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &(curpg)->mdpage.pv_mtx r = 0 (0xfffffd800896fe28) #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_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pmap_remove_ptes+0x29f pmap_remove_pv sys/arch/amd64/amd64/pmap.c:-1 [inline] #3 pmap_remove_ptes+0x29f sys/arch/amd64/amd64/pmap.c:1711 #4 pmap_do_remove+0x589 sys/arch/amd64/amd64/pmap.c:1920 #5 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863 #6 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #6 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2486 #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 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd800b062410) #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_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #3 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1824 #4 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863 #5 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #5 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2486 #6 exit1+0x6fc sys/kern/kern_exit.c:260 #7 sys_exit+0x1a sys/kern/kern_exit.c:-1 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 3107 (syz-executor) thread 0xffff80002f7d8a80 (427892) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10274 11158K 12548K 166960K 15877 0 pcb 18 18K 20K 166960K 579 0 rtable 180 11K 13K 166960K 733 0 pf 36 18K 25K 166960K 564 0 ifaddr 30 5K 7K 166960K 166 0 ifgroup 58 2K 3K 166960K 332 0 sysctl 4 1K 9K 166960K 22 0 counters 70 37K 38K 166960K 414 0 ioctlops 0 0K 8K 166960K 2317 0 iov 0 0K 28K 166960K 222 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1556 98K 98K 166960K 4641 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 66 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 2723 0 sigio 0 0K 0K 166960K 115 0 proc 73 115K 164K 166960K 860 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 588 0 in_multi 51 3K 7K 166960K 215 0 ether_multi 1 0K 0K 166960K 22 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 367 1632K 1632K 166960K 367 0 exec 0 0K 1K 166960K 1291 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 255 178K 189K 166960K 26916 0 UVM aobj 40 20K 20K 166960K 44 0 pinsyscall 42 84K 104K 166960K 3948 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 217 0 NDP 12 0K 2K 166960K 123 0 temp 83 8680K 8776K 166960K 141563 0 kqueue 13 20K 34K 166960K 477 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 120 283 0 280 3 2 1 3 0 8 0 rtentry 176 198 0 138 6 1 5 6 0 8 0 unpcb 144 2192 0 2171 23 21 2 8 0 8 1 syncache 336 15 0 15 5 5 0 1 0 8 0 tcpqe 32 6 0 6 1 1 0 1 0 8 0 tcpcb 736 1285 0 1279 32 28 4 13 0 8 3 arp 136 29 0 20 1 0 1 1 0 8 0 inpcb 328 4054 0 4043 36 32 4 18 0 8 2 nd6 152 37 0 22 2 0 2 2 0 8 0 pkpcb 40 16 0 16 4 3 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 4 0 4 2 2 0 1 0 8 0 ppxss 1192 139 0 139 4 3 1 1 0 8 1 pppxif 1504 13 0 13 6 5 1 1 0 8 1 pffrag 232 27 0 14 1 0 1 1 0 482 0 pffrnode 88 20 0 10 1 0 1 1 0 8 0 pffrent 40 68 0 55 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 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 166 0 95 1 0 1 1 0 8 0 pfstkey 128 166 0 95 3 0 3 3 0 8 0 pfstate 448 166 0 95 9 0 9 9 0 8 0 pfrule 1344 29 0 24 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 849 0 551 32 8 24 29 0 8 2 art_table 40 853 0 551 5 0 5 5 0 8 0 art_node 32 195 0 141 1 0 1 1 0 8 0 sysvmsgpl 40 45 0 38 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 62 0 52 1 0 1 1 0 8 0 shmpl 112 31 0 2 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 6801 0 5303 96 0 96 96 0 8 0 ffsino 296 6801 0 5303 118 1 117 118 0 8 0 nchpl 144 10797 0 10173 64 39 25 64 0 8 0 rtmask 32 18 0 18 7 6 1 1 0 8 1 vnodes 216 4503 0 0 251 0 251 251 0 8 0 namei 1024 38834 0 38833 2 1 1 1 0 8 0 percpumem 16 222 0 172 1 0 1 1 0 8 0 vcpupl 3968 8 0 0 1 0 1 1 0 8 0 vmpool 840 10 0 2 1 0 1 1 0 8 0 kstatmem 264 210 0 180 3 0 3 3 0 8 0 acpiwqpl 32 3 0 3 1 0 1 1 1 8 1 scsiplug 72 11 0 11 4 4 0 1 0 8 0 scxspl 216 74214 0 74214 13 11 2 8 1 8 2 plimitpl 152 810 0 792 1 0 1 1 0 8 0 sigapl 424 3034 0 2983 7 1 6 7 0 8 0 knotepl 120 904 0 0 27 0 27 27 0 8 0 kqueuepl 224 1251 0 1241 16 12 4 5 0 8 3 pipepl 344 453 0 425 12 9 3 9 0 8 0 fdescpl 528 3010 0 2979 3 0 3 3 0 8 0 filepl 160 23834 0 23605 52 30 22 27 0 8 11 lockfpl 104 1199 0 1196 3 2 1 2 0 8 0 lockfspl 48 512 0 509 1 0 1 1 0 8 0 sessionpl 144 37 0 28 1 0 1 1 0 8 0 pgrppl 48 79 0 62 1 0 1 1 0 8 0 ucredpl 104 4207 0 4193 1 0 1 1 0 8 0 zombiepl 144 2986 0 2983 1 0 1 1 0 8 0 processpl 1232 3034 0 2983 6 1 5 5 0 8 0 procpl 664 7365 0 7303 6 0 6 6 0 8 0 sosppl 176 23 0 23 4 3 1 1 0 8 1 sockpl 752 6617 0 6581 74 67 7 30 0 8 3 mcl64k 65536 23 0 0 3 0 3 3 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 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 51 0 0 7 2 5 7 0 8 0 mtagpl 96 64 0 0 2 0 2 2 0 8 0 mbufpl 256 1202 0 0 74 0 74 74 0 8 0 bufpl 280 30193 0 24056 439 0 439 439 0 8 0 anonpl 32 15506 0 0 125 0 125 125 0 246 0 amapchunkpl 152 91576 0 91077 71 40 31 35 0 158 9 amappl16 200 11494 0 11455 110 94 16 40 0 8 5 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 5 0 5 2 2 0 1 0 8 0 amappl13 176 449 0 448 1 0 1 1 0 8 0 amappl12 168 3489 0 3447 3 0 3 3 0 8 0 amappl11 160 8 0 7 1 0 1 1 0 8 0 amappl10 152 51 0 36 1 0 1 1 0 8 0 amappl9 144 270 0 269 1 0 1 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 91 0 89 1 0 1 1 0 8 0 amappl6 120 321 0 307 1 0 1 1 0 8 0 amappl5 112 101 0 90 1 0 1 1 0 8 0 amappl4 104 511 0 480 1 0 1 1 0 8 0 amappl3 96 18843 0 18734 5 1 4 4 0 8 0 amappl2 88 656 0 594 2 0 2 2 0 8 0 amappl1 80 22663 0 22076 15 1 14 15 0 8 0 amappl 88 25640 0 25467 5 0 5 5 0 92 0 uvmvnodes 80 186 0 0 4 0 4 4 0 8 0 dma65536 65536 8 0 8 2 2 0 1 0 8 0 dma16384 16384 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 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 257 0 257 4 4 0 1 0 8 0 dma64 64 7 0 7 2 2 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 43 0 4 1 0 1 1 0 8 0 uaddrrnd 24 3010 0 2979 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3010 0 2979 1 0 1 1 0 8 0 vmmpekpl 168 25132 0 25092 3 0 3 3 0 8 0 vmmpepl 168 196643 0 194699 159 59 100 118 0 357 5 vmsppl 488 3009 0 2978 7 2 5 5 0 8 0 rwobjpl 80 52894 0 51731 43 9 34 38 0 8 0 pdppl 4096 6048 0 5968 131 51 80 84 0 8 0 pvpl 32 23799 0 0 191 0 191 191 0 265 0 pmappl 256 3019 0 2980 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 429 0 104 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8385bff0) 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(ffffffff839301a0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839301a0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 scsi_xs_get(ffff8000001a0100,103) at scsi_xs_get+0x15f scsi_iopool_get sys/scsi/scsi_base.c:260 [inline] scsi_xs_get(ffff8000001a0100,103) at scsi_xs_get+0x15f sys/scsi/scsi_base.c:655 sdactivate(ffff8000001a1000,6) at sdactivate+0x268 sd_flush sys/scsi/sd.c:-1 [inline] sdactivate(ffff8000001a1000,6) at sdactivate+0x268 sys/scsi/sd.c:271 config_suspend(ffff8000001a1000,6) at config_suspend+0x62 sys/kern/subr_autoconf.c:834 scsibusactivate(ffff80000007b180,6) at scsibusactivate+0xab scsi_activate_link sys/scsi/scsiconf.c:410 [inline] scsibusactivate(ffff80000007b180,6) at scsibusactivate+0xab scsi_activate_bus sys/scsi/scsiconf.c:360 [inline] scsibusactivate(ffff80000007b180,6) 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: 0xffff80003c469600, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8385bff0) 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(ffffffff839301a0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839301a0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 scsi_xs_get(ffff8000001a0100,103) at scsi_xs_get+0x15f scsi_iopool_get sys/scsi/scsi_base.c:260 [inline] scsi_xs_get(ffff8000001a0100,103) at scsi_xs_get+0x15f sys/scsi/scsi_base.c:655 sdactivate(ffff8000001a1000,6) at sdactivate+0x268 sd_flush sys/scsi/sd.c:-1 [inline] sdactivate(ffff8000001a1000,6) at sdactivate+0x268 sys/scsi/sd.c:271 config_suspend(ffff8000001a1000,6) at config_suspend+0x62 sys/kern/subr_autoconf.c:834 scsibusactivate(ffff80000007b180,6) at scsibusactivate+0xab scsi_activate_link sys/scsi/scsiconf.c:410 [inline] scsibusactivate(ffff80000007b180,6) at scsibusactivate+0xab scsi_activate_bus sys/scsi/scsiconf.c:360 [inline] scsibusactivate(ffff80000007b180,6) 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(ffffffff833e0b41) at panic+0x1f9 kerntrap(ffff80003c469730) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001690000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,81,2000,ffff80002f7d9778) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80002f7d9778) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4698e0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8060a4c880,81,fffffd80097fd7b8,ffff80002f7d9778) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806d2a4d48,ffff80002f7d9778) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806d2a4d48,ffff80002f7d9778) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806d2a4d48,ffff80002f7d9778) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806d2a4d48,ffff80002f7d9778) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002f7d9778) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002f7d9778,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002f7d9778,ffff80003c469c50,ffff80003c469ba0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c469c50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c469c50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x741d7b8b64e0, count: -31 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x688 savectx() at savectx+0xae end of kernel end trace frame: 0x741d7b8b64b0, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x741d7b8b64b0, count: -1