uvm_fault(0xfffffd8069080408, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff82c1f038 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003a3e2360 gsbase 0xffff8000299ddff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff82c1f038 Starting stack trace... panic(ffffffff833e18b3) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003a3e22b0) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001701000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5b,1,2000,ffff8000fffe8550) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5b,1,2000,ffff8000fffe8550) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003a3e2460) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807a9f4288,1,fffffd80097fd680,ffff8000fffe8550) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c964350,ffff8000fffe8550) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c964350,ffff8000fffe8550) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c964350,ffff8000fffe8550) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c964350,ffff8000fffe8550) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffe8550) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffe8550,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffe8550,ffff80003a3e27d0,ffff80003a3e2720) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003a3e27d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a3e27d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fd9ac75aef0, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON TRAP EXIT 4 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 340124 53358 0 0 0 0 syz-executor * 22955 15773 0 0 0 1 syz-executor proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x74d20c00b870, 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(0xfffffd8069080408, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x74d20c00b870, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002ebca430 rbx 0 rdx 0 rcx 0xffff8000fffe9a10 rax 0x2a r8 0xffff80002ebca360 r9 0x1 r10 0x36f2f1a17bc4039f r11 0x3ab90cd029b01893 r12 0 r13 0xffffffff8239ae88 Xdoreti+0x18 r14 0 r15 0 rip 0xffffffff819114c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002ebca3b0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=22955 pid=15773 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=0xffff8000fffe8a80,0xffff8000fffe8fc0 process=0xffff8000fffe49c0 user=0xffff80002ebc5000, vmspace=0xfffffd8069080038 estcpu=36, cpticks=3, pctcpu=0.0, user=3, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53358 340124 38698 0 7 0 syz-executor *15773 22955 12893 0 7 0 syz-executor 15773 38960 12893 0 2 0x4000000 syz-executor 88508 108263 32675 0 2 0 syz-executor 88508 262462 32675 0 3 0x4000080 bell syz-executor 18966 42098 53096 0 3 0x80 nanoslp syz-executor 18966 188935 53096 0 3 0x4000080 kqsel syz-executor 18966 201761 53096 0 3 0x4000080 fsleep syz-executor 67458 262741 17792 0 3 0x3000 suspend syz-executor 67458 234738 17792 0 3 0x4081000 biowait syz-executor 67458 144440 17792 0 3 0x4081000 inode syz-executor 67458 440468 17792 0 3 0x4081000 inode syz-executor 80781 115604 3126 0 3 0x3000 suspend syz-executor 80781 268579 3126 0 3 0x4081000 biowait syz-executor 3126 138983 13024 0 3 0x82 nanoslp syz-executor 32675 64736 13024 0 3 0x82 nanoslp syz-executor 16605 289424 0 0 3 0x14200 acct acct 38698 145281 13024 0 3 0x82 nanoslp syz-executor 37646 304265 13024 0 3 0x82 nanoslp syz-executor 12893 45615 13024 0 3 0x82 nanoslp syz-executor 49842 20173 13024 0 3 0x82 nanoslp syz-executor 53096 475103 13024 0 3 0x82 nanoslp syz-executor 17792 87801 13024 0 3 0x82 nanoslp syz-executor 13024 340538 47039 0 3 0x82 kqread syz-executor 47039 311937 78353 0 3 0x10008a sigsusp ksh 78353 352454 36038 0 3 0x98 kqread sshd-session 36038 322226 16683 0 3 0x92 kqread sshd-session 93969 405801 1 0 3 0x100083 ttyin getty 16683 61529 1 0 3 0x88 kqread sshd 67196 347949 13350 74 3 0x1100092 bpf pflogd 13350 418024 1 0 3 0x80 sbwait pflogd 18267 442491 53641 73 3 0x1100090 kqread syslogd 53641 15879 1 0 3 0x100082 sbwait syslogd 86340 57642 1 0 3 0x100080 kqread resolvd 73600 13525 17061 77 3 0x100092 kqread dhcpleased 41957 285642 17061 77 3 0x100092 kqread dhcpleased 17061 235038 1 0 3 0x80 kqread dhcpleased 75258 219763 0 0 2 0x40014200 smr 50766 30305 0 0 3 0x14200 pgzero zerothread 17204 438821 0 0 3 0x14200 aiodoned aiodoned 58935 473743 0 0 3 0x14200 syncer update 15929 463271 0 0 3 0x14200 cleaner cleaner 33049 479055 0 0 3 0x14200 reaper reaper 79605 466825 0 0 3 0x14200 pgdaemon pagedaemon 3798 190936 0 0 3 0x14200 bored viomb 57726 345647 0 0 3 0x40014200 acpi0 acpi0 86132 82653 0 0 3 0x40014200 idle1 21577 165535 0 0 3 0x14200 bored softnet1 3526 491419 0 0 3 0x14200 netlock softnet0 53124 165403 0 0 3 0x14200 smrbar systqmp 79665 114484 0 0 3 0x14200 bored systq 77015 376066 0 0 3 0x14200 tmoslp softclockmp 65605 473136 0 0 3 0x40014200 tmoslp softclock 31268 239207 0 0 3 0x40014200 idle0 1 160776 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 53358 (syz-executor) thread 0xffff8000fffe87e8 (340124) shared rwlock amaplk r = 0 (0xfffffd806c636e88) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvm_fault_check+0x8a9 sys/uvm/uvm_fault.c:834 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd80690806f0) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 67458 (syz-executor) thread 0xffff8000fffe82b8 (234738) exclusive rrwlock inode r = 0 (0xfffffd806f0c0b88) #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+0xbd 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 67458 (syz-executor) thread 0xffff8000fffe94e0 (144440) exclusive rrwlock inode r = 0 (0xfffffd807eb12c30) #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+0xbd 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 vn_open+0x1f1 sys/kern/vfs_vnops.c:107 #8 doopenat+0x35b sys/kern/vfs_syscalls.c:1138 #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 80781 (syz-executor) thread 0xffff80003c4087f0 (268579) exclusive rrwlock inode r = 0 (0xfffffd806c312210) #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+0xbd 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 53124 (systqmp) thread 0xffff8000ffffecf8 (165403) shared rwlock systqmp r = 0 (0xffffffff837fd358) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11113 12170K 15793K 166960K 15769 0 pcb 18 14K 16K 166960K 727 0 rtable 211 10K 12K 166960K 876 0 pf 32 17K 19K 166960K 267 0 ifaddr 36 6K 9K 166960K 198 0 ifgroup 51 2K 3K 166960K 357 0 sysctl 4 1K 9K 166960K 31 0 counters 68 36K 38K 166960K 390 0 ioctlops 0 0K 4K 166960K 2227 0 iov 0 0K 28K 166960K 166 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1566 98K 99K 166960K 3491 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 200 0 dirhash 12 2K 2K 166960K 60 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 2609 0 sigio 0 0K 0K 166960K 77 0 proc 73 115K 180K 166960K 843 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 319 0 in_multi 62 4K 7K 166960K 267 0 ether_multi 1 0K 0K 166960K 23 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 277 1235K 1235K 166960K 277 0 exec 0 0K 1K 166960K 1016 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 254 161K 177K 166960K 25441 0 UVM aobj 35 24K 24K 166960K 45 0 pinsyscall 43 86K 103K 166960K 3912 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 273 0 NDP 11 0K 2K 166960K 141 0 temp 85 8684K 8780K 166960K 145298 0 kqueue 13 20K 32K 166960K 513 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 120 423 0 420 6 5 1 3 0 8 0 rtentry 176 245 0 165 6 0 6 6 0 8 0 unpcb 144 2209 0 2158 14 11 3 6 0 8 1 syncache 336 19 0 19 4 4 0 1 0 8 0 tcpqe 32 8 0 8 2 2 0 1 0 8 0 tcpcb 736 1218 0 1209 18 15 3 7 0 8 1 arp 136 45 0 28 2 0 2 2 0 8 0 inpcb 328 3438 0 3421 25 18 7 10 0 8 4 nd6 152 41 0 26 1 0 1 1 0 8 0 pkpcb 40 15 0 14 6 5 1 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 mppekey 1024 3 0 3 2 2 0 1 0 8 0 ppxss 1192 126 0 126 3 2 1 1 0 8 1 pppxif 1504 18 0 18 3 2 1 1 0 8 1 pffrag 232 24 0 13 1 0 1 1 0 482 0 pffrnode 88 20 0 9 1 0 1 1 0 8 0 pffrent 40 108 0 96 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 pfrule 1360 2 0 2 1 1 0 1 0 8 0 rttmr 136 4 0 4 4 3 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1127 0 816 37 10 27 31 0 8 3 art_table 40 1130 0 816 5 0 5 5 0 8 0 art_node 32 244 0 178 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 13 1 0 1 1 0 8 0 semupl 112 3 0 3 3 2 1 1 0 8 1 semapl 112 194 0 184 1 0 1 1 0 8 0 shmpl 112 27 0 5 1 0 1 1 0 8 0 dirhash 1024 49 0 32 3 0 3 3 0 8 0 dino2pl 256 6577 0 5066 96 0 96 96 0 8 0 ffsino 296 6577 0 5066 118 0 118 118 0 8 0 nchpl 144 10129 0 8422 64 0 64 64 0 8 0 rtmask 32 22 0 22 6 5 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 37782 0 37780 5 4 1 2 0 8 0 percpumem 16 210 0 161 1 0 1 1 0 8 0 vcpupl 3968 10 0 0 2 0 2 2 0 8 0 vmpool 848 14 0 4 2 0 2 2 0 8 0 kstatmem 264 232 0 206 6 3 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 9 0 9 7 6 1 1 0 8 1 scxspl 216 69612 0 69610 12 11 1 8 1 8 0 plimitpl 152 1036 0 1015 1 0 1 1 0 8 0 sigapl 424 2911 0 2862 7 1 6 7 0 8 0 knotepl 120 810 0 0 23 0 23 23 0 8 0 kqueuepl 224 1129 0 1119 8 7 1 5 0 8 0 pipepl 344 533 0 503 10 6 4 6 0 8 1 fdescpl 528 2885 0 2853 3 0 3 3 0 8 0 filepl 160 22212 0 21943 35 21 14 18 0 8 2 lockfpl 104 808 0 806 1 0 1 1 0 8 0 lockfspl 48 333 0 331 1 0 1 1 0 8 0 sessionpl 144 41 0 32 1 0 1 1 0 8 0 pgrppl 48 79 0 62 1 0 1 1 0 8 0 ucredpl 104 3677 0 3664 1 0 1 1 0 8 0 zombiepl 144 3065 0 3061 1 0 1 1 0 8 0 processpl 1232 2911 0 2862 5 0 5 5 0 8 0 procpl 664 6966 0 6909 6 0 6 6 0 8 0 sosppl 176 16 0 16 5 4 1 1 0 8 1 sockpl 752 6271 0 6199 36 26 10 18 0 8 2 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 139 0 0 17 0 17 17 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 10 0 0 1 0 1 1 0 8 0 mbufpl 256 6102 0 0 380 0 380 380 0 8 0 bufpl 280 29116 0 22980 439 0 439 439 0 8 0 anonpl 32 16492 0 0 133 0 133 133 0 246 0 amapchunkpl 152 86462 0 85879 79 47 32 39 0 158 6 amappl16 200 9916 0 9394 63 33 30 40 0 8 0 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 7 0 7 2 2 0 1 0 8 0 amappl13 176 483 0 482 1 0 1 1 0 8 0 amappl12 168 3323 0 3281 3 0 3 3 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 50 0 36 1 0 1 1 0 8 0 amappl9 144 256 0 256 1 1 0 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 97 0 95 1 0 1 1 0 8 0 amappl6 120 368 0 353 1 0 1 1 0 8 0 amappl5 112 87 0 76 1 0 1 1 0 8 0 amappl4 104 527 0 495 1 0 1 1 0 8 0 amappl3 96 15442 0 15349 4 1 3 3 0 8 0 amappl2 88 3116 0 3037 3 1 2 3 0 8 0 amappl1 80 23580 0 22988 16 0 16 16 0 8 0 amappl 88 24118 0 23942 5 0 5 5 0 92 0 uvmvnodes 80 184 0 0 4 0 4 4 0 8 0 dma4096 4096 1 0 1 1 1 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 7 0 7 2 2 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 44 0 10 1 0 1 1 0 8 0 uaddrrnd 24 2886 0 2854 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2886 0 2854 1 0 1 1 0 8 0 vmmpekpl 168 24555 0 24514 3 0 3 3 0 8 0 vmmpepl 168 191390 0 188907 148 39 109 120 0 357 0 vmsppl 488 2885 0 2854 8 3 5 5 0 8 0 rwobjpl 80 51450 0 49796 42 6 36 39 0 8 0 pdppl 4096 5808 0 5726 144 61 83 86 0 8 1 pvpl 32 24935 0 0 201 0 201 201 0 265 0 pmappl 256 2899 0 2858 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 725 0 100 18 0 18 18 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83891ff0) 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(ffffffff83a190c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(2) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(2) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsofttty() at Xsofttty+0x27 __mp_lock(ffffffff83a190c0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x199 sys/kern/kern_lock.c:173 intr_handler(ffff80003c3fa1d0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d pool_cache_get(ffffffff8393c898) at pool_cache_get+0x344 sys/kern/subr_pool.c:1924 pool_get(ffffffff8393c898,2) at pool_get+0xd6 sys/kern/subr_pool.c:-1 pmap_enter(fffffd806eb0cc00,f0d2a24e000,6c512000,1,20) at pmap_enter+0x1eb sys/arch/amd64/amd64/pmap.c:-1 end trace frame: 0xffff80003c3fa5f0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83891ff0) 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(ffffffff83a190c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(2) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(2) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsofttty() at Xsofttty+0x27 __mp_lock(ffffffff83a190c0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x199 sys/kern/kern_lock.c:173 intr_handler(ffff80003c3fa1d0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d pool_cache_get(ffffffff8393c898) at pool_cache_get+0x344 sys/kern/subr_pool.c:1924 pool_get(ffffffff8393c898,2) at pool_get+0xd6 sys/kern/subr_pool.c:-1 pmap_enter(fffffd806eb0cc00,f0d2a24e000,6c512000,1,20) at pmap_enter+0x1eb sys/arch/amd64/amd64/pmap.c:-1 uvm_fault_upper_lookup(ffff80003c3fa700,ffff80003c3fa738,ffff80003c3fa600,ffff80003c3fa680) at uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1 uvm_fault(fffffd80690805f0,f0d2a24b000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:632 upageflttrap(ffff80003c3fa8a0,f0d2a24bec0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c3fa8a0) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7e6b5494c720, count: -19 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x74d20c00b870, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x74d20c00b870, count: -1