uvm_fault(0xfffffd806c1eb3d8, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff8276eae0 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c45f4a0 gsbase 0xffff8000299ddff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff8276eae0 Starting stack trace... panic(ffffffff8333ab55) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c45f3f0) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000146a000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(21e5f,81,2000,ffff800038bee030) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff800038bee030) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c45f5a0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd80665dbdc0,81,fffffd80097fb820,ffff800038bee030) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8073193a18,ffff800038bee030) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8073193a18,ffff800038bee030) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8073193a18,ffff800038bee030) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8073193a18,ffff800038bee030) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff800038bee030) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff800038bee030,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff800038bee030,ffff80003c45f910,ffff80003c45f860) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c45f910) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45f910) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a04243115c0, 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 * 5438 80266 0 0 0 1 syz-executor 76254 4373 0 0x2 0 0 syz-executor proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6fb50309ca40, 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(0xfffffd806c1eb3d8, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6fb50309ca40, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a34c850 rbx 0 rdx 0 rcx 0xffff800038ff4a78 rax 0x2a r8 0xffff80002a34c780 r9 0x1 r10 0x992c8fb8e0d902fa r11 0xbd747b922dfcb390 r12 0 r13 0xffffffff829f7258 Xdoreti+0x18 r14 0 r15 0 rip 0xffffffff814cd4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a34c7d0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=5438 pid=80266 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=0xffff80003c41acf8,0xffff800038ff5c78 process=0xffff80003c41d380 user=0xffff80002a347000, vmspace=0xfffffd806c1eb1f8 estcpu=36, cpticks=4, pctcpu=0.0, user=2, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91305 89106 82848 0 3 0x80 nanoslp syz-executor 91305 517548 82848 0 3 0x4000080 kqread syz-executor 91305 475945 82848 0 3 0x4000080 fsleep syz-executor *80266 5438 36796 0 7 0 syz-executor 80266 405493 36796 0 3 0x4000000 biowait syz-executor 827 149335 0 0 3 0x14280 nfsidl nfsio 52764 475749 0 0 3 0x14280 nfsidl nfsio 29565 308428 0 0 3 0x14280 nfsidl nfsio 75641 106103 0 0 3 0x14280 nfsidl nfsio 59628 146890 0 0 3 0x14280 nfsidl nfsio 23602 286676 0 0 3 0x14280 nfsidl nfsio 30461 17596 0 0 3 0x14280 nfsidl nfsio 16577 370025 0 0 3 0x14280 nfsidl nfsio 52357 106919 0 0 3 0x14280 nfsidl nfsio 53311 511695 0 0 3 0x14280 nfsidl nfsio 87995 308223 0 0 3 0x14280 nfsidl nfsio 16483 370059 0 0 3 0x14280 nfsidl nfsio 24413 443261 0 0 3 0x14280 nfsidl nfsio 85005 3007 0 0 3 0x14280 nfsidl nfsio 33727 19893 0 0 3 0x14280 nfsidl nfsio 59876 384024 0 0 3 0x14280 nfsidl nfsio 95167 82660 0 0 3 0x14280 nfsidl nfsio 21535 147248 0 0 3 0x14280 nfsidl nfsio 4575 238865 0 0 3 0x14280 nfsidl nfsio 33401 172223 0 0 3 0x14280 nfsidl nfsio 77871 251824 4373 0 3 0x82 nanoslp syz-executor 29017 95348 4373 0 2 0x2 syz-executor 44454 75357 1 0 3 0x100083 ttyin getty 71742 442995 4373 0 3 0x2 biowait syz-executor 17859 245341 0 0 3 0x14200 bored sosplice 36796 449031 4373 0 3 0x82 nanoslp syz-executor 23952 27225 4373 0 2 0x2 syz-executor 82848 359946 4373 0 3 0x82 nanoslp syz-executor 9369 104251 4373 0 3 0x82 nanoslp syz-executor 90724 143582 4373 0 3 0x82 nanoslp syz-executor 4373 76254 78029 0 7 0x2 syz-executor 78029 9091 98505 0 3 0x10008a sigsusp ksh 98505 296231 89692 0 3 0x98 kqread sshd-session 89692 29390 45768 0 3 0x92 kqread sshd-session 45768 122982 1 0 3 0x88 kqread sshd 62919 495455 62989 74 3 0x1100092 bpf pflogd 62989 316981 1 0 3 0x80 sbwait pflogd 53398 232688 42831 73 3 0x1100090 kqread syslogd 42831 500839 1 0 3 0x100082 sbwait syslogd 38108 158177 1 0 3 0x100080 kqread resolvd 60205 199988 11506 77 3 0x100092 kqread dhcpleased 5367 312219 11506 77 3 0x100092 kqread dhcpleased 11506 91627 1 0 3 0x80 kqread dhcpleased 83241 337207 0 0 3 0x14200 bored smr 61111 324060 0 0 2 0x14200 zerothread 84306 64321 0 0 3 0x14200 aiodoned aiodoned 62394 329123 0 0 3 0x14200 syncer update 27547 424302 0 0 3 0x14200 cleaner cleaner 57314 37633 0 0 3 0x14200 reaper reaper 47315 190206 0 0 3 0x14200 pgdaemon pagedaemon 97123 138558 0 0 3 0x14200 bored viomb 28222 396882 0 0 3 0x40014200 acpi0 acpi0 19563 482927 0 0 3 0x40014200 idle1 5665 329495 0 0 3 0x14200 bored softnet3 59617 308476 0 0 3 0x14200 bored softnet2 87106 435129 0 0 3 0x14200 bored softnet1 53614 497035 0 0 3 0x14200 netlock softnet0 62210 58037 0 0 2 0x40014200 systqmp 60117 166711 0 0 3 0x14200 bored systq 47554 338277 0 0 3 0x14200 tmoslp softclockmp 83236 294152 0 0 3 0x40014200 tmoslp softclock 97020 517635 0 0 3 0x40014200 idle0 1 101787 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 80266 (syz-executor) thread 0xffff800038ff4038 (405493) exclusive rrwlock inode r = 0 (0xfffffd806e96f650) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 71742 (syz-executor) thread 0xffff80003c41aa68 (442995) exclusive rrwlock inode r = 0 (0xfffffd806e2e79d0) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806be0b640) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 4373 (syz-executor) thread 0xffff80002a284018 (76254) exclusive rwlock sbufsnd r = 0 (0xffff800010fdfb80) #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 sblock+0xb7 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e2 sys/kern/uipc_socket.c:630 #4 dofilewritev+0x23c sys/kern/sys_generic.c:380 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10233 11224K 11590K 166960K 13383 0 pcb 17 13K 14K 166960K 193 0 rtable 181 8K 10K 166960K 544 0 pf 41 19K 23K 166960K 143 0 ifaddr 36 6K 7K 166960K 95 0 ifgroup 59 2K 2K 166960K 139 0 sysctl 4 1K 9K 166960K 16 0 counters 70 37K 37K 166960K 158 0 ioctlops 0 0K 4K 166960K 1738 0 iov 0 0K 16K 166960K 62 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 89K 166960K 2535 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 95 0 dirhash 12 2K 2K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 110K 166960K 1198 0 sigio 1 0K 0K 166960K 124 0 proc 73 91K 140K 166960K 750 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 159 0 in_multi 66 4K 7K 166960K 159 0 ether_multi 1 0K 0K 166960K 7 0 mrt 2 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 578 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 246 173K 178K 166960K 12439 0 UVM aobj 34 2K 2K 166960K 37 0 pinsyscall 41 82K 105K 166960K 2372 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 52 0 NDP 13 0K 2K 166960K 65 0 temp 66 8692K 8768K 166960K 47423 0 kqueue 14 22K 30K 166960K 215 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 120 172 0 169 3 2 1 3 0 8 0 rtentry 176 162 0 87 6 0 6 6 0 8 0 unpcb 144 1211 0 1190 14 10 4 6 0 8 3 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 405 0 398 8 7 1 7 0 8 0 arp 128 27 0 11 1 0 1 1 0 8 0 inpcb 328 1171 0 1157 12 5 7 7 0 8 5 nd6 144 34 0 18 1 0 1 1 0 8 0 pkpcb 40 9 0 9 2 1 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 1 0 1 0 8 0 ppxss 1192 36 0 36 1 0 1 1 0 8 1 pppxif 1504 4 0 4 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 58 0 51 1 0 1 1 0 482 0 pffrnode 88 39 0 33 1 0 1 1 0 8 0 pffrent 40 110 0 103 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 3 0 2 1 0 1 1 0 8 0 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pftag 88 5 0 4 2 1 1 1 0 8 0 pfstitem 24 84 0 23 1 0 1 1 0 8 0 pfstkey 128 88 0 27 3 0 3 3 0 8 0 pfstate 384 85 0 25 7 0 7 7 0 8 0 pfrule 1344 29 0 20 2 1 1 2 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 723 0 388 29 7 22 29 0 8 0 art_table 32 727 0 388 4 0 4 4 0 8 0 art_node 16 161 0 95 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 9 1 0 1 1 0 8 0 semupl 112 5 0 5 3 2 1 1 0 8 1 semapl 112 91 0 81 1 0 1 1 0 8 0 shmpl 112 34 0 3 1 0 1 1 0 8 0 dirhash 1024 41 0 24 3 0 3 3 0 8 0 dino2pl 256 3576 0 2064 96 0 96 96 0 8 0 ffsino 288 3576 0 2064 109 0 109 109 0 8 0 nchpl 144 5206 0 3500 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 1 0 1 0 8 0 uvmvnodes 80 4390 0 0 90 0 90 90 0 8 0 vnodes 216 4390 0 0 244 0 244 244 0 8 0 namei 1024 18364 0 18361 2 1 1 1 0 8 0 percpumem 16 94 0 44 1 0 1 1 0 8 0 kstatmem 264 86 0 56 3 0 3 3 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 15932 0 15930 12 10 2 8 1 8 1 plimitpl 152 232 0 214 1 0 1 1 0 8 0 sigapl 424 1509 0 1440 10 1 9 9 0 8 0 knotepl 120 310 0 0 10 0 10 10 0 8 0 kqueuepl 224 578 0 568 13 4 9 9 0 8 8 pipepl 336 176 0 146 3 0 3 3 0 8 0 fdescpl 520 1467 0 1437 3 0 3 3 0 8 0 filepl 160 9951 0 9657 24 6 18 18 0 8 3 lockfpl 104 599 0 596 2 1 1 2 0 8 0 lockfspl 48 219 0 216 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 49 0 32 1 0 1 1 0 8 0 ucredpl 104 1208 0 1194 1 0 1 1 0 8 0 zombiepl 144 1447 0 1443 1 0 1 1 0 8 0 processpl 1240 1509 0 1440 6 0 6 6 0 8 0 procpl 656 3302 0 3230 8 0 8 8 0 8 0 srpgc 96 11 0 11 2 2 0 1 0 8 0 sosppl 168 6 0 6 2 1 1 1 0 8 1 sockpl 728 2584 0 2546 30 20 10 16 0 8 6 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 16 0 16 16 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 22 0 0 1 0 1 1 0 8 0 mbufpl 256 512 0 0 32 0 32 32 0 8 0 bufpl 280 4561 0 143 316 0 316 316 0 8 0 anonpl 32 9639 0 0 78 0 78 78 0 246 0 amapchunkpl 152 41148 0 40655 38 10 28 31 0 158 6 amappl16 200 3855 0 3820 20 9 11 15 0 8 7 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 127 0 115 1 0 1 1 0 8 0 amappl13 176 7 0 7 3 3 0 1 0 8 0 amappl12 168 2169 0 2139 3 1 2 2 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 269 0 268 2 1 1 1 0 8 0 amappl8 136 85 0 83 1 0 1 1 0 8 0 amappl7 128 116 0 103 1 0 1 1 0 8 0 amappl6 120 215 0 210 1 0 1 1 0 8 0 amappl5 112 136 0 127 1 0 1 1 0 8 0 amappl4 104 335 0 316 1 0 1 1 0 8 0 amappl3 96 8277 0 8163 4 0 4 4 0 8 0 amappl2 88 694 0 631 2 0 2 2 0 8 0 amappl1 80 13041 0 12435 15 0 15 15 0 8 0 amappl 88 11506 0 11337 5 0 5 5 0 92 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 8 0 8 3 2 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 36 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1467 0 1437 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1467 0 1437 1 0 1 1 0 8 0 vmmpekpl 168 12849 0 12797 3 0 3 3 0 8 0 vmmpepl 168 96322 0 94342 105 7 98 99 0 357 6 vmsppl 480 1466 0 1437 5 0 5 5 0 8 0 rwobjpl 72 30212 0 24836 99 0 99 99 0 8 1 pdppl 4096 2942 0 2874 110 38 72 84 0 8 4 pvpl 32 16990 0 0 138 0 138 138 0 265 0 pmappl 256 1466 0 1437 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 428 0 58 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83880ff0) 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(ffffffff83994068) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff83994068) at __mp_lock+0x192 sys/kern/kern_lock.c:162 intr_handler(ffff80002a2e58f0,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83994068) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff83994068) at __mp_lock+0x192 sys/kern/kern_lock.c:162 intr_handler(ffff80002a2e5a50,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f mtx_enter_try(fffffd80788881c0) at mtx_enter_try+0xaa sys/kern/kern_lock.c:-1 mtx_enter(fffffd80788881c0) at mtx_enter+0x62 sys/kern/kern_lock.c:255 kqueue_scan(ffff80002a2e5da0,8,ffff80002a2e5ca0,ffff80002a2e5fd8,ffff80002a284018,ffff80002a2e5f4c) at kqueue_scan+0x26d sys/kern/kern_event.c:1645 dopselect(ffff80002a284018,35,7a87a6369c30,0,0,ffff80002a2e5fd8,3cc131dff380564a,ffff80002a284018) at dopselect+0x5eb sys/kern/sys_generic.c:691 sys_pselect(ffff80002a284018,ffff80002a2e6120,ffff80002a2e6070) at sys_pselect+0x263 sys/kern/sys_generic.c:589 end trace frame: 0xffff80002a2e6110, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83880ff0) 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(ffffffff83994068) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff83994068) at __mp_lock+0x192 sys/kern/kern_lock.c:162 intr_handler(ffff80002a2e58f0,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83994068) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff83994068) at __mp_lock+0x192 sys/kern/kern_lock.c:162 intr_handler(ffff80002a2e5a50,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f mtx_enter_try(fffffd80788881c0) at mtx_enter_try+0xaa sys/kern/kern_lock.c:-1 mtx_enter(fffffd80788881c0) at mtx_enter+0x62 sys/kern/kern_lock.c:255 kqueue_scan(ffff80002a2e5da0,8,ffff80002a2e5ca0,ffff80002a2e5fd8,ffff80002a284018,ffff80002a2e5f4c) at kqueue_scan+0x26d sys/kern/kern_event.c:1645 dopselect(ffff80002a284018,35,7a87a6369c30,0,0,ffff80002a2e5fd8,3cc131dff380564a,ffff80002a284018) at dopselect+0x5eb sys/kern/sys_generic.c:691 sys_pselect(ffff80002a284018,ffff80002a2e6120,ffff80002a2e6070) at sys_pselect+0x263 sys/kern/sys_generic.c:589 syscall(ffff80002a2e6120) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2e6120) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a87a6369be0, count: -16 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: 0x6fb50309ca40, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6fb50309ca40, count: -1