uvm_fault(0xfffffd805e94a5c8, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81986740 cs 8 rflags 10246 cr2 0 cpl 0 rsp ffff80002a7d1e50 gsbase 0xffff8000299ddff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81986740 Starting stack trace... panic(ffffffff8333d3e6) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80002a7d1da0) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff8000015a4000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(21e5f,81,2000,ffff80003c4334a8) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c4334a8) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a7d1f50) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ec61518,81,fffffd80097fb410,ffff80003c4334a8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806cc2f528,ffff80003c4334a8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806cc2f528,ffff80003c4334a8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806cc2f528,ffff80003c4334a8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806cc2f528,ffff80003c4334a8) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c4334a8) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c4334a8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c4334a8,ffff80002a7d22c0,ffff80002a7d2210) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a7d22c0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7d22c0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7887f9833b20, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON SYSCALL 83 1099806064 EXIT 0 4 Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 154567 16325 0 0 0 0 syz-executor *319287 14467 0 0 0 1 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x7c6a8a8c81e0, 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 *cpu1: uvm_fault(0xfffffd805e94a5c8, 0x0, 0, 1) -> e ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7c6a8a8c81e0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c4399f0 rbx 0 rdx 0 rcx 0xffff80003c4327d8 rax 0x3b r8 0xffff80003c439920 r9 0x1 r10 0xa25a86278a677e03 r11 0xa0a54f35e360f041 r12 0 r13 0 r14 0xffff80003c4327d8 r15 0 rip 0xffffffff826293ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80003c439970 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=319287 pid=14467 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=0xffff80003c4334a8,0xffff8000ffff0030 process=0xffff8000fffedd28 user=0xffff80003c434000, vmspace=0xfffffd806eefa3c8 estcpu=36, cpticks=1, pctcpu=0.0, user=1, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97559 290737 8220 0 2 0 syz-executor 16325 154567 94030 0 7 0 syz-executor 16325 190630 94030 0 2 0x4000000 syz-executor 79012 257273 40969 0 2 0 syz-executor 79012 387974 40969 0 3 0x4000080 kqsel syz-executor 79012 82462 40969 0 2 0x4000000 syz-executor 98494 144012 44734 0 2 0x82000 syz-executor 98494 489363 44734 0 3 0x4002000 suspend syz-executor 98494 469455 44734 0 4 0x4082000 syz-executor 98494 499350 44734 0 4 0x4082000 syz-executor *14467 319287 5986 0 7 0 syz-executor 14467 204537 5986 0 2 0x4000000 syz-executor 33412 153696 0 0 3 0x14200 acct acct 40969 382078 86640 0 3 0x82 nanoslp syz-executor 94705 205619 86640 0 2 0x2 syz-executor 47994 173194 86640 0 3 0x82 nanoslp syz-executor 56325 444082 0 0 3 0x14200 bored sosplice 5986 489827 86640 0 3 0x82 nanoslp syz-executor 58146 83921 86640 0 3 0x82 wait syz-executor 44734 430626 86640 0 3 0x82 nanoslp syz-executor 8220 352339 86640 0 3 0x82 nanoslp syz-executor 94030 277650 86640 0 3 0x82 nanoslp syz-executor 86640 201030 38357 0 3 0x82 kqread syz-executor 38357 488179 88141 0 3 0x10008a sigsusp ksh 88141 213568 60666 0 3 0x98 kqread sshd-session 60666 31254 64472 0 3 0x92 kqread sshd-session 3857 407632 1 0 3 0x100083 ttyin getty 64472 457680 1 0 3 0x88 kqread sshd 29536 24720 3958 74 3 0x1100092 bpf pflogd 3958 49885 1 0 3 0x80 sbwait pflogd 57328 77509 75607 73 3 0x1100090 kqread syslogd 75607 373996 1 0 3 0x100082 sbwait syslogd 81360 378374 1 0 3 0x100080 kqread resolvd 72661 228327 16790 77 3 0x100092 kqread dhcpleased 35210 331160 16790 77 3 0x100092 kqread dhcpleased 16790 28850 1 0 3 0x80 kqread dhcpleased 18549 340026 0 0 3 0x14200 bored smr 34439 249244 0 0 2 0x14200 zerothread 20309 115005 0 0 3 0x14200 aiodoned aiodoned 13661 439526 0 0 3 0x14200 syncer update 22575 517069 0 0 3 0x14200 cleaner cleaner 79573 459341 0 0 2 0x14200 reaper 94960 154314 0 0 3 0x14200 pgdaemon pagedaemon 66008 146418 0 0 3 0x14200 bored viomb 9494 258427 0 0 3 0x40014200 acpi0 acpi0 54929 326846 0 0 3 0x40014200 idle1 52146 432839 0 0 3 0x14200 bored softnet3 47678 399022 0 0 3 0x14200 bored softnet2 51940 419077 0 0 3 0x14200 bored softnet1 53800 291311 0 0 3 0x14200 netlock softnet0 95764 433663 0 0 2 0x40014200 systqmp 70921 274317 0 0 3 0x14200 bored systq 8918 341446 0 0 3 0x14200 tmoslp softclockmp 61107 398215 0 0 3 0x40014200 tmoslp softclock 97881 504986 0 0 3 0x40014200 idle0 1 500806 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 97559 (syz-executor) thread 0xffff8000ffff0cf0 (290737) exclusive rwlock vmmaplk r = 0 (0xfffffd805e94a4e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #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+0x8a5 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x8a5 sys/uvm/uvm_fault.c:784 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 16325 (syz-executor) thread 0xffff8000ffff1210 (190630) shared rwlock vmmaplk r = 0 (0xfffffd800b0262e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x36e sys/kern/kern_rwlock.c:397 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 Process 79012 (syz-executor) thread 0xffff8000ffff02b0 (82462) exclusive rwlock vmmaplk r = 0 (0xfffffd805e94ac68) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #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+0x8a5 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x8a5 sys/uvm/uvm_fault.c:784 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 14467 (syz-executor) thread 0xffff80003c432a68 (204537) exclusive rwlock vmmaplk r = 0 (0xfffffd806eefa4c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3064 #4 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:590 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #6 Xsyscall+0x128 Process 94705 (syz-executor) thread 0xffff8000ffff1730 (205619) exclusive rwlock vmmaplk r = 0 (0xfffffd800b026e20) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmspace_fork+0x12b sys/uvm/uvm_map.c:3738 #4 process_new+0x572 sys/kern/kern_fork.c:284 #5 fork1+0x3ea sys/kern/kern_fork.c:410 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd805e94a128) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3729 #4 process_new+0x572 sys/kern/kern_fork.c:284 #5 fork1+0x3ea sys/kern/kern_fork.c:410 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 79573 (reaper) thread 0xffff8000ffffd488 (459341) exclusive rwlock kmmaplk r = 0 (0xffffffff838e9058) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_unmap+0x81 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:285 #6 reaper+0x1cb sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10226 11117K 13070K 166960K 12722 0 pcb 18 18K 21K 166960K 263 0 rtable 197 9K 10K 166960K 614 0 pf 33 17K 20K 166960K 136 0 ifaddr 35 6K 8K 166960K 103 0 ifgroup 50 2K 2K 166960K 175 0 sysctl 4 1K 9K 166960K 14 0 counters 64 36K 37K 166960K 170 0 ioctlops 0 0K 4K 166960K 1755 0 iov 0 0K 36K 166960K 77 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1493 94K 95K 166960K 2301 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 97 0 dirhash 15 2K 3K 166960K 42 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 110K 166960K 1211 0 sigio 1 0K 0K 166960K 53 0 proc 73 91K 140K 166960K 709 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 194 0 in_multi 76 5K 7K 166960K 163 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 594 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 242 176K 189K 166960K 12463 0 UVM aobj 12 2K 2K 166960K 18 0 pinsyscall 43 86K 104K 166960K 2368 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 50 0 NDP 10 0K 2K 166960K 68 0 temp 79 8696K 8768K 166960K 44861 0 kqueue 13 20K 32K 166960K 221 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 120 106 0 101 1 0 1 1 0 8 0 rtentry 176 181 0 98 6 0 6 6 0 8 0 unpcb 144 826 0 809 10 2 8 8 0 8 7 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 279 0 275 7 6 1 4 0 8 0 arp 128 30 0 16 1 0 1 1 0 8 0 inpcb 328 1225 0 1216 17 15 2 12 0 8 0 nd6 144 39 0 18 2 1 1 2 0 8 0 pkpcb 40 7 0 7 3 3 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 32 0 32 2 1 1 1 0 8 1 pppxif 1504 7 0 7 3 2 1 1 0 8 1 pffrag 232 10 0 1 1 0 1 1 0 482 0 pffrnode 88 9 0 1 1 0 1 1 0 8 0 pffrent 40 16 0 6 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 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 86 0 26 1 0 1 1 0 8 0 pfstkey 128 86 0 26 2 0 2 2 0 8 0 pfstate 384 86 0 26 6 0 6 6 0 8 0 pfrule 1344 25 0 20 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 699 0 333 33 6 27 30 0 8 1 art_table 32 702 0 333 4 0 4 4 0 8 0 art_node 16 173 0 105 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semapl 112 94 0 84 1 0 1 1 0 8 0 shmpl 112 15 0 6 1 0 1 1 0 8 0 dirhash 1024 37 0 18 3 0 3 3 0 8 0 dino2pl 256 3665 0 2155 96 0 96 96 0 8 0 ffsino 288 3665 0 2155 109 0 109 109 0 8 0 nchpl 144 5258 0 3559 64 0 64 64 0 8 0 rtmask 32 5 0 5 2 1 1 1 0 8 1 uvmvnodes 80 3246 0 0 67 0 67 67 0 8 0 vnodes 216 3246 0 0 181 0 181 181 0 8 0 namei 1024 19208 0 19208 3 2 1 2 0 8 1 percpumem 16 100 0 53 1 0 1 1 0 8 0 kstatmem 264 94 0 72 4 2 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 16046 0 16046 13 11 2 8 1 8 2 plimitpl 152 264 0 246 1 0 1 1 0 8 0 sigapl 424 1496 0 1444 7 1 6 7 0 8 0 knotepl 120 795 0 0 24 0 24 24 0 8 0 kqueuepl 224 388 0 378 5 3 2 2 0 8 1 pipepl 336 330 0 303 8 5 3 8 0 8 0 fdescpl 520 1475 0 1443 3 0 3 3 0 8 0 filepl 160 9709 0 9484 26 8 18 18 0 8 6 lockfpl 104 567 0 564 2 0 2 2 0 8 1 lockfspl 48 192 0 189 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 47 0 30 1 0 1 1 0 8 0 ucredpl 104 1859 0 1845 1 0 1 1 0 8 0 zombiepl 144 1518 0 1516 1 0 1 1 0 8 0 processpl 1240 1496 0 1444 5 0 5 5 0 8 0 procpl 656 3254 0 3193 6 0 6 6 0 8 0 srpgc 96 12 0 12 3 3 0 1 0 8 0 sosppl 168 4 0 4 2 2 0 1 0 8 0 sockpl 728 2190 0 2159 41 30 11 21 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 14 0 14 14 0 8 0 mcl2k 2048 32 0 0 4 0 4 4 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 258 0 0 17 0 17 17 0 8 0 bufpl 280 4348 0 126 302 0 302 302 0 8 0 anonpl 32 7677 0 0 62 0 62 62 0 246 0 amapchunkpl 152 41102 0 40611 41 13 28 32 0 158 6 amappl16 200 3828 0 3793 26 22 4 15 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 121 0 108 1 0 1 1 0 8 0 amappl13 176 57 0 57 1 1 0 1 0 8 0 amappl12 168 2166 0 2135 4 2 2 3 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 9 0 9 2 2 0 1 0 8 0 amappl9 144 262 0 262 1 1 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 130 0 117 1 0 1 1 0 8 0 amappl6 120 207 0 204 1 0 1 1 0 8 0 amappl5 112 143 0 133 1 0 1 1 0 8 0 amappl4 104 325 0 305 1 0 1 1 0 8 0 amappl3 96 8253 0 8141 5 1 4 4 0 8 0 amappl2 88 689 0 626 2 0 2 2 0 8 0 amappl1 80 12761 0 12157 17 2 15 15 0 8 0 amappl 88 11558 0 11390 5 0 5 5 0 92 0 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 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 2 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 17 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1475 0 1443 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1475 0 1443 1 0 1 1 0 8 0 vmmpekpl 168 13097 0 13051 3 0 3 3 0 8 0 vmmpepl 168 96150 0 94144 101 7 94 100 0 357 0 vmsppl 480 1474 0 1443 6 1 5 5 0 8 0 rwobjpl 72 28747 0 24552 81 2 79 81 0 8 0 pdppl 4096 2958 0 2886 124 52 72 84 0 8 0 pvpl 32 15006 0 0 122 1 121 121 0 265 0 pmappl 256 1474 0 1443 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 435 0 78 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837caff0) 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(ffffffff838d06f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838d06f8) at __mp_lock+0x192 sys/kern/kern_lock.c:162 intr_handler(ffff80003c43f760,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff838d06f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838d06f8) at __mp_lock+0x192 sys/kern/kern_lock.c:162 softintr_dispatch(0) at softintr_dispatch+0x12a sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7c9161b564e0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff837caff0) 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(ffffffff838d06f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838d06f8) at __mp_lock+0x192 sys/kern/kern_lock.c:162 intr_handler(ffff80003c43f760,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff838d06f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838d06f8) at __mp_lock+0x192 sys/kern/kern_lock.c:162 softintr_dispatch(0) at softintr_dispatch+0x12a sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7c9161b564e0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x688 savectx() at savectx+0xae end of kernel end trace frame: 0x7c6a8a8c81e0, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7c6a8a8c81e0, count: -1