uvm_fault(0xfffffd806ef5c1f0, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff82fd90a8 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c431630 gsbase 0xffff8000299edff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff82fd90a8 Starting stack trace... panic(ffffffff833a81c5) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c431580) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000148c000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff80002a2a27e0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80002a2a27e0) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c431730) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806fe86b10,81,fffffd80097fb208,ffff80002a2a27e0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805b4abb70,ffff80002a2a27e0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805b4abb70,ffff80002a2a27e0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805b4abb70,ffff80002a2a27e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805b4abb70,ffff80002a2a27e0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a2a27e0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a2a27e0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a2a27e0,ffff80003c431aa0,ffff80003c4319f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c431aa0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c431aa0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75634f95ad10, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON SYSCALL 83 1019423104 EXIT 0 4 Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *266799 58130 0 0 0x4000000 1 syz-executor 501986 56437 0 0x14000 0x40000200 0 softclock savectx() at savectx+0xae end of kernel end trace frame: 0x1bcdfda7000, 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(0xfffffd806ef5c1f0, 0x0, 0, 1) -> e ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x1bcdfda7000, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c557ed0 rbx 0 rdx 0 rcx 0xffff80003c497cc8 rax 0x3b r8 0xffff80003c557e00 r9 0x1 r10 0xcce102527c9d40c7 r11 0xaae0a43682c4751 r12 0 r13 0 r14 0xffff80003c497cc8 r15 0 rip 0xffffffff817273ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80003c557e50 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=266799 pid=58130 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a3f2aa8,0xffff80003c4977a8 process=0xffff80003c428030 user=0xffff80003c552000, vmspace=0xfffffd806b24f200 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58130 290634 44512 0 2 0 syz-executor 58130 43081 44512 0 2 0x4000000 syz-executor *58130 266799 44512 0 7 0x4000000 syz-executor 58130 158717 44512 0 3 0x4000080 fsleep syz-executor 30950 415337 88162 0 2 0 syz-executor 30950 503199 88162 0 3 0x4000080 fsleep syz-executor 55298 499646 89251 0 2 0xc80 syz-executor 55298 152054 89251 0 3 0x4000080 fsleep syz-executor 55298 228831 89251 0 3 0x4000080 sbwait syz-executor 41223 38409 62613 0 2 0xc80 syz-executor 41223 38322 62613 0 3 0x4000080 kqsel syz-executor 41223 210005 62613 0 3 0x4000080 kqsel syz-executor 41223 170648 62613 0 3 0x4000080 fsleep syz-executor 45765 121644 21200 0 2 0xc80 syz-executor 45765 55383 21200 0 3 0x4000080 kqsel syz-executor 45765 449221 21200 0 3 0x4000080 fsleep syz-executor 45765 65520 21200 0 3 0x4000080 fsleep syz-executor 13678 2838 50678 0 2 0xc80 syz-executor 13678 28909 50678 0 2 0x4000000 syz-executor 13678 348156 50678 0 3 0x4000000 inode syz-executor 13678 427590 50678 0 3 0x4000000 inode syz-executor 13678 238978 50678 0 3 0x4000080 fsleep syz-executor 29624 263292 19916 0 3 0x82 sbwait sshd-session 62613 98505 33244 0 2 0xc82 syz-executor 89839 261412 33244 0 3 0x82 wait syz-executor 57807 450054 19916 0 3 0x82 sbwait sshd-session 45504 452524 1 0 2 0x100083 getty 85290 346480 0 0 3 0x14280 nfsidl nfsio 94219 190537 0 0 3 0x14280 nfsidl nfsio 26778 427985 0 0 3 0x14280 nfsidl nfsio 54441 187620 0 0 3 0x14280 nfsidl nfsio 82798 165126 0 0 3 0x14280 nfsidl nfsio 18667 69121 0 0 3 0x14280 nfsidl nfsio 55852 296040 0 0 3 0x14280 nfsidl nfsio 80943 63352 0 0 3 0x14280 nfsidl nfsio 25827 334639 0 0 3 0x14280 nfsidl nfsio 87678 191601 0 0 3 0x14280 nfsidl nfsio 83655 355130 0 0 3 0x14280 nfsidl nfsio 53441 447561 0 0 3 0x14280 nfsidl nfsio 44292 246218 0 0 3 0x14280 nfsidl nfsio 54054 16482 0 0 3 0x14280 nfsidl nfsio 96442 38638 0 0 3 0x14280 nfsidl nfsio 39575 468656 0 0 3 0x14280 nfsidl nfsio 44320 271929 0 0 3 0x14280 nfsidl nfsio 59667 74184 0 0 3 0x14280 nfsidl nfsio 11349 482871 0 0 3 0x14280 nfsidl nfsio 63504 197937 0 0 3 0x14280 nfsidl nfsio 23815 511195 0 0 3 0x14200 bored sosplice 44618 479251 33244 0 2 0xc82 syz-executor 44512 16488 33244 0 2 0xc82 syz-executor 89251 330028 33244 0 2 0xc82 syz-executor 88162 99292 33244 0 2 0xc82 syz-executor 21200 222907 33244 0 2 0xc82 syz-executor 50678 178436 33244 0 2 0xc82 syz-executor 33244 402954 45623 0 3 0x82 kqread syz-executor 45623 98750 91126 0 3 0x10008a sigsusp ksh 91126 433679 37322 0 3 0x98 kqread sshd-session 37322 397329 19916 0 3 0x92 kqread sshd-session 19916 490761 1 0 3 0x88 kqread sshd 50320 518627 86576 74 3 0x1100092 bpf pflogd 86576 441182 1 0 3 0x80 sbwait pflogd 87687 159583 41805 73 3 0x1100090 kqread syslogd 41805 207773 1 0 3 0x100082 sbwait syslogd 4061 430227 1 0 3 0x100080 kqread resolvd 87525 253737 69281 77 3 0x100092 kqread dhcpleased 6068 114892 69281 77 3 0x100092 kqread dhcpleased 69281 344035 1 0 3 0x80 kqread dhcpleased 18614 196795 0 0 3 0x14200 bored smr 80254 522012 0 0 2 0x14200 zerothread 98852 24374 0 0 3 0x14200 aiodoned aiodoned 79490 99255 0 0 3 0x14200 syncer update 7321 200213 0 0 3 0x14200 cleaner cleaner 77607 262940 0 0 2 0x14200 reaper 75027 325686 0 0 3 0x14200 pgdaemon pagedaemon 56079 512437 0 0 3 0x14200 bored viomb 76446 63191 0 0 3 0x40014200 acpi0 acpi0 47854 256727 0 0 3 0x40014200 idle1 50045 319504 0 0 3 0x14200 bored softnet7 64525 286527 0 0 3 0x14200 bored softnet6 22006 260966 0 0 3 0x14200 bored softnet5 73563 367736 0 0 3 0x14200 bored softnet4 77871 357275 0 0 3 0x14200 bored softnet3 28549 29598 0 0 3 0x14200 bored softnet2 66785 215760 0 0 3 0x14200 bored softnet1 10836 138875 0 0 2 0x14200 softnet0 29772 156820 0 0 2 0x14200 systqmp 62929 174528 0 0 3 0x14200 bored systq 75913 389912 0 0 2 0x14200 softclockmp 56437 501986 0 0 7 0x40014200 softclock 85365 63013 0 0 3 0x40014200 idle0 1 28507 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 13678 (syz-executor) thread 0xffff80002a3f2d40 (28909) exclusive rwlock vmmaplk r = 0 (0xfffffd806b24fc88) #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:5168 #3 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1918 #4 uvm_fault_check+0x895 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x895 sys/uvm/uvm_fault.c:784 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #6 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283 #7 kerntrap+0x198 sys/arch/amd64/amd64/trap.c:489 #8 alltraps_kern_meltdown+0x7b #9 _copyin+0x57 #10 ffs_write+0x769 sys/ufs/ffs/ffs_vnops.c:359 #11 VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 #12 vn_write+0x1d3 sys/kern/vfs_vnops.c:408 #13 dofilewritev+0x242 sys/kern/sys_generic.c:380 #14 sys_write+0xa2 sys/kern/sys_generic.c:300 #15 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #16 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806afd3ec0) #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:746 #9 Xsyscall+0x128 Process 13678 (syz-executor) thread 0xffff800037411a28 (427590) exclusive rrwlock inode r = 0 (0xfffffd806afd3208) #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 domknodat+0xb4 sys/kern/vfs_syscalls.c:1592 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 Process 77607 (reaper) thread 0xffff8000ffffc2a0 (262940) exclusive rwlock kmmaplk r = 0 (0xffffffff83993808) #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:5168 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:831 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1aa sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10271 11115K 11304K 166960K 13419 0 pcb 19 20K 34K 166960K 904 0 rtable 228 14K 14K 166960K 947 0 pf 45 19K 131090K 166960K 444 0 ifaddr 46 9K 9K 166960K 213 0 ifgroup 75 3K 3K 166960K 399 0 sysctl 4 1K 9K 166960K 34 0 counters 76 37K 39K 166960K 728 0 ioctlops 0 0K 4K 166960K 2259 0 iov 0 0K 44K 166960K 346 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1481 93K 93K 166960K 3991 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 13K 166960K 58 0 VM map 2 1K 1K 166960K 2 0 sem 26 36K 36K 166960K 166 0 dirhash 12 2K 2K 166960K 90 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 2873 0 sigio 1 0K 0K 166960K 206 0 proc 73 115K 180K 166960K 934 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 0 0K 0K 166960K 412 0 in_multi 88 6K 7K 166960K 262 0 ether_multi 1 0K 0K 166960K 37 0 mrt 2 0K 0K 166960K 19 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 920 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 99 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 299 186K 190K 166960K 27857 0 UVM aobj 133 9K 9K 166960K 137 0 pinsyscall 47 94K 104K 166960K 4104 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 1K 166960K 286 0 NDP 16 0K 2K 166960K 162 0 temp 86 8652K 8769K 166960K 149427 0 kqueue 15 24K 32K 166960K 627 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 120 290 0 287 3 2 1 3 0 8 0 rtentry 176 237 0 157 5 0 5 5 0 8 0 unpcb 144 2678 0 2653 23 17 6 6 0 8 5 syncache 336 22 0 22 7 6 1 1 0 8 1 tcpqe 32 8 0 8 6 6 0 1 0 8 0 tcpcb 736 1256 0 1246 24 17 7 10 0 8 5 arp 128 32 0 19 1 0 1 1 0 8 0 inpcb 328 4339 0 4320 42 35 7 13 0 8 5 nd6 144 29 0 14 1 0 1 1 0 8 0 pkpcb 40 23 0 23 5 4 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 296 0 296 3 2 1 1 0 8 1 pppxif 1504 18 0 18 6 5 1 1 0 8 1 pffrag 232 25 0 15 1 0 1 1 0 482 0 pffrnode 88 22 0 13 1 0 1 1 0 8 0 pffrent 40 41 0 31 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 1 0 1 1 1 0 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 143 0 73 1 0 1 1 0 8 0 pfstkey 128 143 0 73 3 0 3 3 0 8 0 pfstate 384 143 0 73 8 0 8 8 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 4 0 4 4 4 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 851 0 453 31 6 25 30 0 8 0 art_table 40 854 0 453 5 0 5 5 0 8 0 art_node 32 201 0 131 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 20 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 151 0 127 1 0 1 1 0 8 0 shmpl 112 134 0 4 4 0 4 4 0 8 0 dirhash 1024 71 0 54 3 0 3 3 0 8 0 dino2pl 256 7551 0 6029 96 0 96 96 0 8 0 ffsino 296 7551 0 6029 118 0 118 118 0 8 0 nchpl 144 11660 0 9949 64 0 64 64 0 8 0 rtmask 32 32 0 32 5 5 0 1 0 8 0 uvmvnodes 80 4780 0 0 98 0 98 98 0 8 0 vnodes 216 4780 0 0 266 0 266 266 0 8 0 namei 1024 42576 0 42574 5 4 1 2 0 8 0 percpumem 16 379 0 326 1 0 1 1 0 8 0 kstatmem 264 284 0 246 4 1 3 3 0 8 0 acpiwqpl 32 4 0 4 1 0 1 1 1 8 1 scsiplug 72 10 0 10 7 7 0 1 0 8 0 scxspl 216 73741 0 73741 13 11 2 8 1 8 2 plimitpl 152 676 0 656 1 0 1 1 0 8 0 sigapl 424 3219 0 3142 9 0 9 9 0 8 0 knotepl 120 683 0 0 20 0 20 20 0 8 0 kqueuepl 224 1377 0 1360 21 16 5 9 0 8 4 pipepl 344 517 0 490 13 10 3 9 0 8 0 fdescpl 528 3170 0 3136 3 0 3 3 0 8 0 filepl 160 25936 0 25696 46 27 19 21 0 8 7 lockfpl 104 1144 0 1142 3 2 1 2 0 8 0 lockfspl 48 385 0 383 1 0 1 1 0 8 0 sessionpl 144 44 0 33 1 0 1 1 0 8 0 pgrppl 48 91 0 72 1 0 1 1 0 8 0 ucredpl 104 5187 0 5173 1 0 1 1 0 8 0 zombiepl 144 4025 0 4023 2 1 1 1 0 8 0 processpl 1232 3219 0 3142 7 0 7 7 0 8 0 procpl 664 8047 0 7952 10 1 9 9 0 8 0 sosppl 168 21 0 21 6 5 1 1 0 8 1 sockpl 752 7506 0 7459 101 88 13 25 0 8 8 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 68 0 0 9 1 8 9 0 8 1 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 1181 0 0 74 0 74 74 0 8 0 bufpl 280 31178 0 25035 441 1 440 440 0 8 0 anonpl 32 18739 0 0 151 0 151 151 0 246 0 amapchunkpl 152 99729 0 99002 65 32 33 36 0 158 3 amappl16 200 11442 0 11241 68 47 21 32 0 8 4 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 152 0 138 1 0 1 1 0 8 0 amappl13 176 49 0 48 1 0 1 1 0 8 0 amappl12 168 3900 0 3866 2 0 2 2 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 25 0 23 1 0 1 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 36 0 33 1 0 1 1 0 8 0 amappl7 128 172 0 157 1 0 1 1 0 8 0 amappl6 120 283 0 278 1 0 1 1 0 8 0 amappl5 112 134 0 124 1 0 1 1 0 8 0 amappl4 104 384 0 364 1 0 1 1 0 8 0 amappl3 96 17478 0 17355 5 1 4 4 0 8 0 amappl2 88 3544 0 3450 4 1 3 3 0 8 0 amappl1 80 24022 0 23251 18 2 16 16 0 8 0 amappl 88 26552 0 26338 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 3 0 3 3 3 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 5 5 0 1 0 8 0 dma128 128 257 0 257 5 5 0 1 0 8 0 dma64 64 8 0 8 3 3 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 72 136 0 4 3 0 3 3 0 8 0 uaddrrnd 24 3170 0 3136 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3170 0 3136 1 0 1 1 0 8 0 vmmpekpl 168 28159 0 28121 3 0 3 3 0 8 0 vmmpepl 168 209174 0 206608 139 26 113 120 0 357 1 vmsppl 488 3169 0 3136 7 2 5 5 0 8 0 rwobjpl 80 60267 0 53985 135 5 130 130 0 8 0 pdppl 4096 6348 0 6272 128 52 76 86 0 8 0 pvpl 32 26907 0 0 217 0 217 217 0 265 0 pmappl 256 3169 0 3136 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 415 0 98 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83822ff0) 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(ffffffff83918a60) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83918a60) at __mp_lock+0x192 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff83918a60,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:367 softclock_thread_run(ffffffff83852de8) at softclock_thread_run+0x79 sys/kern/kern_timeout.c:836 softclock_thread(ffff8000ffffef90) at softclock_thread+0x10a sys/kern/kern_timeout.c:858 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff83822ff0) 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(ffffffff83918a60) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83918a60) at __mp_lock+0x192 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff83918a60,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:367 softclock_thread_run(ffffffff83852de8) at softclock_thread_run+0x79 sys/kern/kern_timeout.c:836 softclock_thread(ffff8000ffffef90) at softclock_thread+0x10a sys/kern/kern_timeout.c:858 end trace frame: 0x0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x688 savectx() at savectx+0xae end of kernel end trace frame: 0x1bcdfda7000, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x1bcdfda7000, count: -1