uvm_fault(0xfffffd806cada200, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81a26328 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c460f10 gsbase 0xffffffff83806ff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81a26328 Starting stack trace... panic(ffffffff833d64f7) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c460e60) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001617000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,81,2000,ffff8000357e9a10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000357e9a10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c461010) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f2b6cb0,81,fffffd80097fd6e8,ffff8000357e9a10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805fd69bc8,ffff8000357e9a10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805fd69bc8,ffff8000357e9a10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805fd69bc8,ffff8000357e9a10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805fd69bc8,ffff8000357e9a10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c461270) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c461270) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3319422a790, count: 245 End of stack trace. WA RNdIuNG:m SpP Lt NOT o LdOeWvE R4,E1D OnoNt p oSssiYbSleCA LL 91 -1046448264 EXIT 0 c Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 34820 84902 0 0 0x4000000 0 syz-executor *253425 68047 0 0x2 0 1 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x7d68c1a07760, 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(0xfffffd806cada200, 0x0, 0, 1) -> e ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7d68c1a07760, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a3a8260 rbx 0 rdx 0 rcx 0xffff80003c46e2d0 rax 0x3c r8 0xffff80002a3a8190 r9 0xffff80002a3a7e58 r10 0x3915fa77014b455a r11 0xdb7aec323461f689 r12 0 r13 0 r14 0xffff80003c46e2d0 r15 0 rip 0xffffffff8196c3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a3a81e0 ss 0 savectx+0xae: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=253425 pid=68047 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c456030,0xffff80003c46e810 process=0xffff80003c4c4030 user=0xffff80002a3a3000, vmspace=0xfffffd8062ae73f8 estcpu=36, cpticks=269, pctcpu=0.89, user=1, sys=166, intr=101 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30858 238144 39219 0 2 0 syz-executor 30858 514231 39219 0 3 0x4000080 nanoslp syz-executor 81775 407921 43161 0 2 0 syz-executor 81775 116193 43161 0 3 0x4000080 fsleep syz-executor 89158 326238 67326 0 2 0 syz-executor 89158 256170 67326 0 3 0x4000080 kqsel syz-executor 46426 92311 89967 0 2 0 syz-executor 46426 346915 89967 0 2 0x4000000 syz-executor 46426 434167 89967 0 3 0x4000000 inode syz-executor 46426 189759 89967 0 2 0x4000000 syz-executor 84902 184125 9004 0 2 0 syz-executor 84902 34820 9004 0 7 0x4000000 syz-executor 84902 381820 9004 0 3 0x4000080 fsleep syz-executor 84902 368113 9004 0 3 0x4000080 fsleep syz-executor 6200 83693 0 0 3 0x14200 acct acct 37195 215780 99227 0 2 0xc82 syz-executor 67326 510128 99227 0 2 0xc82 syz-executor *68047 253425 99227 0 7 0x2 syz-executor 9787 442247 0 0 3 0x14280 nfsidl nfsio 28197 520433 0 0 3 0x14280 nfsidl nfsio 66220 227969 0 0 3 0x14280 nfsidl nfsio 60793 281440 0 0 3 0x14280 nfsidl nfsio 89967 287973 99227 0 2 0xc82 syz-executor 88123 455463 99227 0 2 0xc82 syz-executor 43161 315855 99227 0 2 0xc82 syz-executor 9004 351586 99227 0 2 0xc82 syz-executor 39219 499337 99227 0 2 0xc82 syz-executor 99227 214869 43189 0 3 0x82 kqread syz-executor 43189 369737 8819 0 3 0x10008a sigsusp ksh 8819 226104 15683 0 3 0x98 kqread sshd-session 15683 3755 3019 0 3 0x92 kqread sshd-session 35439 484365 1 0 2 0x100083 getty 3019 256338 1 0 3 0x88 kqread sshd 4708 490265 41620 74 3 0x1100092 bpf pflogd 41620 287307 1 0 3 0x80 sbwait pflogd 90204 328089 75800 73 3 0x1100090 kqread syslogd 75800 65428 1 0 3 0x100082 sbwait syslogd 64582 276700 1 0 3 0x100080 kqread resolvd 84420 286395 57765 77 3 0x100092 kqread dhcpleased 19893 189212 57765 77 3 0x100092 kqread dhcpleased 57765 250127 1 0 3 0x80 kqread dhcpleased 25815 246244 0 0 2 0x14200 smr 34559 394698 0 0 2 0x14200 zerothread 1831 264561 0 0 3 0x14200 aiodoned aiodoned 93494 351846 0 0 3 0x14200 syncer update 45443 404511 0 0 3 0x14200 cleaner cleaner 89703 314781 0 0 2 0x14200 reaper 75028 180811 0 0 3 0x14200 pgdaemon pagedaemon 67864 365836 0 0 3 0x14200 bored viomb 11946 96067 0 0 3 0x40014200 acpi0 acpi0 34568 302136 0 0 3 0x40014200 idle1 12790 235870 0 0 3 0x14200 bored softnet1 55928 173756 0 0 2 0x14200 softnet0 18103 473897 0 0 3 0x14200 bored systqmp 31693 212529 0 0 3 0x14200 bored systq 82339 236042 0 0 2 0x14200 softclockmp 91021 373141 0 0 3 0x40014200 tmoslp softclock 10132 248794 0 0 3 0x40014200 idle0 1 355899 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &sched_lock r = 0 (0xffffffff839aa818) #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 wakeup_n+0x54 sys/kern/kern_synch.c:581 #4 uvm_pmr_freepages+0x3eb sys/uvm/uvm_pmemrange.c:1337 #5 uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 #6 amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 #7 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #8 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 #9 exit1+0x6fc sys/kern/kern_exit.c:260 #10 sys_exit+0x1a sys/kern/kern_exit.c:-1 #11 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #12 Xsyscall+0x128 exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff839bc708) #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 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #4 uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 #5 amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 #6 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #7 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 #8 exit1+0x6fc sys/kern/kern_exit.c:260 #9 sys_exit+0x1a sys/kern/kern_exit.c:-1 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 Process 46426 (syz-executor) thread 0xffff80003c457258 (346915) exclusive rrwlock inode r = 0 (0xfffffd806ebfa7c8) #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:775 #9 Xsyscall+0x128 Process 46426 (syz-executor) thread 0xffff80003c46efc8 (434167) exclusive rrwlock inode r = 0 (0xfffffd80793435c0) #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 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 uipc_bind+0x328 sys/kern/uipc_usrreq.c:371 #8 sys_bind+0x2f6 sys/kern/uipc_syscalls.c:190 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 Process 46426 (syz-executor) thread 0xffff80003c457a20 (189759) exclusive rwlock vmmaplk r = 0 (0xfffffd806cada4e8) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171 #3 uvm_map_pageable+0x183 sys/uvm/uvm_map.c:2214 #4 sysctl_vslock+0x106 sys/kern/kern_sysctl.c:201 #5 sys_sysctl+0x371 sys/kern/kern_sysctl.c:301 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff83857a38) #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 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:191 #3 sys_sysctl+0x371 sys/kern/kern_sysctl.c:301 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #5 Xsyscall+0x128 Process 84902 (syz-executor) thread 0xffff8000357e9a10 (34820) exclusive rwlock dtlk r = 0 (0xffffffff837eb718) #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 dt_ioctl_record_stop+0x2e sys/dev/dt/dt_dev.c:572 #3 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #3 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #4 spec_close+0x466 sys/kern/spec_vnops.c:-1 #5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #7 fdrop+0x121 sys/kern/kern_descrip.c:1280 #8 closef+0x192 sys/kern/kern_descrip.c:1264 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839a9528) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608 #2 fdrop+0x121 sys/kern/kern_descrip.c:1280 #3 closef+0x192 sys/kern/kern_descrip.c:1264 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #5 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10252 11143K 11696K 166960K 14312 0 pcb 17 18K 20K 166960K 464 0 rtable 213 11K 12K 166960K 678 0 pf 33 17K 81K 166960K 230 0 ifaddr 35 6K 8K 166960K 153 0 ifgroup 52 2K 2K 166960K 286 0 sysctl 4 1K 9K 166960K 21 0 counters 68 36K 38K 166960K 302 0 ioctlops 0 0K 4K 166960K 1952 0 iov 0 0K 18K 166960K 98 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1454 91K 92K 166960K 3251 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 103 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1996 0 sigio 0 0K 0K 166960K 44 0 proc 75 131K 164K 166960K 797 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 405 0 in_multi 66 4K 7K 166960K 206 0 ether_multi 1 0K 0K 166960K 17 0 mrt 0 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 888 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 162K 184K 166960K 20668 0 UVM aobj 89 17K 17K 166960K 90 0 pinsyscall 42 84K 100K 166960K 3241 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 115 0 NDP 11 0K 1K 166960K 110 0 temp 81 8680K 8758K 166960K 96102 0 kqueue 13 20K 30K 166960K 404 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 120 237 0 234 3 2 1 3 0 8 0 rtentry 176 196 0 116 6 0 6 6 0 8 0 unpcb 144 1935 0 1915 22 18 4 6 0 8 3 syncache 336 13 0 13 5 5 0 1 0 8 0 tcpqe 32 14 0 14 3 3 0 1 0 8 0 tcpcb 736 642 0 635 20 18 2 14 0 8 0 arp 136 32 0 16 1 0 1 1 0 8 0 inpcb 328 2411 0 2397 37 30 7 19 0 8 5 nd6 152 38 0 20 2 0 2 2 0 8 0 pkpcb 40 9 0 9 5 5 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 86 0 86 5 5 0 1 0 8 0 pppxif 1504 12 0 12 3 3 0 1 0 8 0 pffrag 232 13 0 7 1 0 1 1 0 482 0 pffrnode 88 11 0 5 1 0 1 1 0 8 0 pffrent 40 41 0 35 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 pfstitem 24 123 0 72 1 0 1 1 0 8 0 pfstkey 128 123 0 72 2 0 2 2 0 8 0 pfstate 448 123 0 72 7 0 7 7 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 834 0 497 34 8 26 31 0 8 0 art_table 40 838 0 497 5 0 5 5 0 8 0 art_node 32 194 0 126 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 13 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 100 0 90 1 0 1 1 0 8 0 shmpl 112 80 0 0 3 0 3 3 0 8 0 dirhash 1024 42 0 25 3 0 3 3 0 8 0 dino2pl 256 5082 0 3565 97 1 96 96 0 8 0 ffsino 296 5082 0 3565 118 0 118 118 0 8 0 nchpl 144 7999 0 7389 64 41 23 64 0 8 0 rtmask 32 15 0 15 4 4 0 1 0 8 0 vnodes 216 5504 0 0 306 0 306 306 0 8 0 namei 1024 28789 0 28788 8 6 2 3 0 8 1 percpumem 16 166 0 117 1 0 1 1 0 8 0 vcpupl 3968 6 0 0 1 0 1 1 0 8 0 vmpool 840 7 0 1 1 0 1 1 0 8 0 kstatmem 264 180 0 154 4 2 2 3 0 8 0 scsiplug 72 8 0 8 5 5 0 1 0 8 0 scxspl 216 34147 0 34147 14 13 1 8 1 8 1 plimitpl 152 608 0 589 1 0 1 1 0 8 0 sigapl 424 2313 0 2260 8 1 7 8 0 8 0 knotepl 120 743 0 0 23 0 23 23 0 8 0 kqueuepl 224 978 0 966 11 10 1 5 0 8 0 pipepl 344 400 0 373 9 3 6 6 0 8 3 fdescpl 528 2272 0 2241 3 0 3 3 0 8 0 filepl 160 16772 0 16542 40 22 18 20 0 8 4 lockfpl 104 688 0 684 1 0 1 1 0 8 0 lockfspl 48 260 0 256 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 70 0 53 1 0 1 1 0 8 0 ucredpl 104 2478 0 2463 1 0 1 1 0 8 0 zombiepl 144 3583 0 3580 2 1 1 1 0 8 0 processpl 1232 2313 0 2260 7 2 5 6 0 8 0 procpl 664 5724 0 5662 8 1 7 8 0 8 0 sosppl 176 8 0 8 3 3 0 1 0 8 0 sockpl 752 4773 0 4736 62 51 11 25 0 8 6 mcl64k 65536 18 0 0 3 1 2 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 124 0 0 16 1 15 16 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 35 0 0 4 0 4 4 0 8 0 mtagpl 96 152 0 0 4 0 4 4 0 8 0 mbufpl 256 358 0 0 21 0 21 21 0 8 0 bufpl 280 12534 0 6398 439 0 439 439 0 8 0 anonpl 32 9430 0 0 77 1 76 77 0 246 0 amapchunkpl 152 72262 0 71744 49 18 31 34 0 158 5 amappl16 200 5333 0 5275 41 27 14 17 0 8 8 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 46 0 46 1 1 0 1 0 8 0 amappl13 176 507 0 506 1 0 1 1 0 8 0 amappl12 168 2682 0 2640 3 0 3 3 0 8 0 amappl11 160 4 0 4 2 2 0 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 57 0 54 1 0 1 1 0 8 0 amappl7 128 91 0 90 1 0 1 1 0 8 0 amappl6 120 326 0 312 1 0 1 1 0 8 0 amappl5 112 82 0 70 1 0 1 1 0 8 0 amappl4 104 478 0 449 1 0 1 1 0 8 0 amappl3 96 12396 0 12299 4 1 3 3 0 8 0 amappl2 88 2448 0 2371 2 0 2 2 0 8 0 amappl1 80 18934 0 18338 15 1 14 14 0 8 0 amappl 88 19507 0 19331 5 0 5 5 0 92 0 uvmvnodes 80 167 0 0 4 0 4 4 0 8 0 dma8192 8192 2 0 2 2 2 0 1 0 8 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 128 255 0 255 3 3 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 89 0 1 2 0 2 2 0 8 0 uaddrrnd 24 2272 0 2241 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2272 0 2241 1 0 1 1 0 8 0 vmmpekpl 168 20283 0 20224 4 0 4 4 0 8 0 vmmpepl 168 148931 0 146960 121 24 97 99 0 357 3 vmsppl 488 2271 0 2240 6 1 5 5 0 8 0 rwobjpl 80 39849 0 38624 32 2 30 30 0 8 0 pdppl 4096 4566 0 4488 136 58 78 82 0 8 0 pvpl 32 16987 0 0 137 0 137 137 0 265 0 pmappl 256 2278 0 2241 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 369 0 103 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83806ff0) 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+0x19 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 sys/dev/kcov.c:153 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: 0xffff80003c460d30, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83806ff0) 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+0x19 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 sys/dev/kcov.c:153 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(ffffffff833d64f7) at panic+0x1f9 kerntrap(ffff80003c460e60) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001617000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,81,2000,ffff8000357e9a10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000357e9a10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c461010) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f2b6cb0,81,fffffd80097fd6e8,ffff8000357e9a10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805fd69bc8,ffff8000357e9a10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805fd69bc8,ffff8000357e9a10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805fd69bc8,ffff8000357e9a10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805fd69bc8,ffff8000357e9a10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c461270) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c461270) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3319422a790, count: -28 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x688 savectx() at savectx+0xae end of kernel end trace frame: 0x7d68c1a07760, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7d68c1a07760, count: -1