*cpu1: uvm_fault(0xfffffd806b7cb208, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x71fd2edd7390, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a321990 rbx 0 rdx 0 rcx 0xffff800038c1e2c0 rax 0x2a r8 0xffff80002a3218c0 r9 0x64959ce6001 r10 0xb56b65a49e1ee6f0 r11 0x46ac3169e3df1360 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff8136f4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a321910 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=10004 pid=8118 tcnt=1 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a322040,0xffffffff838db588 process=0xffff80003c4cec08 user=0xffff80002a31c000, vmspace=0xfffffd806b7cb3f0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND * 8118 10004 54245 0 7 0 syz-executor 15049 25047 10949 60929 2 0x10 syz-executor 15049 210101 10949 60929 3 0x4000090 sbwait syz-executor 20164 406117 23951 0 3 0x80 nanoslp syz-executor 20164 175482 23951 0 3 0x4000080 fsleep syz-executor 20164 341776 23951 0 3 0x4000080 netcon syz-executor 20164 204892 23951 0 3 0x4000080 fsleep syz-executor 48019 168468 65006 0 3 0x80 nanoslp syz-executor 48019 174902 65006 0 3 0x4000080 ttyin syz-executor 48019 255316 65006 0 3 0x4000080 fsleep syz-executor 48019 358816 65006 0 3 0x4000080 fsleep syz-executor 82350 127157 40461 0 2 0x4081000 syz-executor 82350 521412 40461 0 3 0x4003000 suspend syz-executor 73387 164599 1 0 3 0x100083 ttyin getty 40461 426972 77668 0 3 0x82 wait syz-executor 3336 521626 77668 0 3 0x82 wait syz-executor 83877 221129 77668 0 3 0x82 nanoslp syz-executor 34627 70295 0 0 3 0x14280 nfsidl nfsio 36571 83470 0 0 3 0x14280 nfsidl nfsio 58648 347269 0 0 3 0x14280 nfsidl nfsio 34997 434422 0 0 3 0x14280 nfsidl nfsio 54883 119677 0 0 3 0x14280 nfsidl nfsio 68414 270433 0 0 3 0x14280 nfsidl nfsio 69287 25975 0 0 3 0x14280 nfsidl nfsio 83649 218401 0 0 3 0x14280 nfsidl nfsio 57734 70905 0 0 3 0x14280 nfsidl nfsio 60122 292477 0 0 3 0x14280 nfsidl nfsio 21209 152686 0 0 3 0x14280 nfsidl nfsio 64876 491679 0 0 3 0x14280 nfsidl nfsio 47497 422576 0 0 3 0x14280 nfsidl nfsio 10829 383978 0 0 3 0x14280 nfsidl nfsio 57249 350277 0 0 3 0x14280 nfsidl nfsio 20742 496690 0 0 3 0x14280 nfsidl nfsio 48386 495364 0 0 3 0x14280 nfsidl nfsio 26461 415402 0 0 3 0x14280 nfsidl nfsio 40442 91672 0 0 3 0x14280 nfsidl nfsio 94884 181396 0 0 3 0x14280 nfsidl nfsio 56405 314348 0 0 3 0x14200 bored sosplice 65006 76036 77668 0 3 0x82 nanoslp syz-executor 10949 31999 77668 0 3 0x82 nanoslp syz-executor 56 458470 77668 0 3 0x2 biowait syz-executor 23951 23951 77668 0 3 0x82 nanoslp syz-executor 54245 152121 77668 0 3 0x82 nanoslp syz-executor 77668 301976 44748 0 3 0x82 kqread syz-executor 44748 311505 76376 0 3 0x10008a sigsusp ksh 76376 270809 96008 0 3 0x98 kqread sshd-session 96008 247989 28330 0 3 0x92 kqread sshd-session 28330 157154 1 0 3 0x88 kqread sshd 2414 23346 34697 74 3 0x1100092 bpf pflogd 34697 448601 1 0 3 0x80 sbwait pflogd 43704 250388 60275 73 3 0x1100090 kqread syslogd 60275 206079 1 0 3 0x100082 sbwait syslogd 71139 454818 1 0 3 0x100080 kqread resolvd 79431 518411 7164 77 3 0x100092 kqread dhcpleased 38133 228296 7164 77 3 0x100092 kqread dhcpleased 7164 288481 1 0 3 0x80 kqread dhcpleased 66705 241342 0 0 3 0x14200 bored smr 69139 370839 0 0 3 0x14200 pgzero zerothread 92753 93887 0 0 3 0x14200 aiodoned aiodoned 68950 209541 0 0 3 0x14200 syncer update 37203 243512 0 0 3 0x14200 cleaner cleaner 190 143171 0 0 3 0x14200 reaper reaper 72713 512091 0 0 3 0x14200 pgdaemon pagedaemon 36048 330461 0 0 3 0x14200 bored viomb 94109 458849 0 0 3 0x40014200 acpi0 acpi0 29552 8657 0 0 3 0x40014200 idle1 69647 86352 0 0 3 0x14200 bored softnet7 41875 234944 0 0 3 0x14200 bored softnet6 76948 232022 0 0 3 0x14200 bored softnet5 88471 499715 0 0 3 0x14200 bored softnet4 59232 170740 0 0 3 0x14200 bored softnet3 33852 109548 0 0 3 0x14200 bored softnet2 10164 202077 0 0 3 0x14200 bored softnet1 38250 254941 0 0 3 0x14200 bored softnet0 92933 439823 0 0 3 0x14200 bored systqmp 19176 487929 0 0 3 0x14200 bored systq 88560 474317 0 0 3 0x14200 tmoslp softclockmp 44986 441069 0 0 3 0x40014200 tmoslp softclock 58919 380950 0 0 3 0x40014200 idle0 1 6154 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/kern_malloc.c:96 r = 0 (0xffffffff83804a08) #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 malloc+0x2f2 sys/kern/kern_malloc.c:199 #4 amap_alloc1+0x291 sys/uvm/uvm_amap.c:353 #5 amap_alloc+0xad sys/uvm/uvm_amap.c:-1 #6 amap_copy+0x6ac sys/uvm/uvm_amap.c:569 #7 uvm_fault_check+0x930 uvmfault_amapcopy sys/uvm/uvm_fault.c:249 [inline] #7 uvm_fault_check+0x930 sys/uvm/uvm_fault.c:784 #8 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #9 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #10 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #11 recall_trap+0x8 Process 8118 (syz-executor) thread 0xffff800038c1e2c0 (10004) exclusive rwlock vmmaplk r = 0 (0xfffffd806b7cb4f0) #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 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #7 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #8 recall_trap+0x8 exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/kern_malloc.c:96 r = 0 (0xffffffff83804a08) #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 malloc+0x2f2 sys/kern/kern_malloc.c:199 #4 amap_alloc1+0x291 sys/uvm/uvm_amap.c:353 #5 amap_alloc+0xad sys/uvm/uvm_amap.c:-1 #6 amap_copy+0x6ac sys/uvm/uvm_amap.c:569 #7 uvm_fault_check+0x930 uvmfault_amapcopy sys/uvm/uvm_fault.c:249 [inline] #7 uvm_fault_check+0x930 sys/uvm/uvm_fault.c:784 #8 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #9 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #10 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #11 recall_trap+0x8 Process 15049 (syz-executor) thread 0xffff80002a322040 (210101) exclusive rwlock sbufrcv r = 0 (0xffff8000014fc788) #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 sblock+0xb6 sys/kern/uipc_socket2.c:536 #3 soreceive+0x27d sys/kern/uipc_socket.c:870 #4 recvit+0x40b sys/kern/uipc_syscalls.c:1078 #5 sys_recvmmsg+0x410 sys/kern/uipc_syscalls.c:969 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 82350 (syz-executor) thread 0xffff800038c1efb8 (127157) exclusive rrwlock inode r = 0 (0xfffffd806e0a56f0) #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:748 #9 Xsyscall+0x128 Process 56 (syz-executor) thread 0xffff8000ffff34d0 (458470) exclusive rrwlock inode r = 0 (0xfffffd8076925ef0) #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 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:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cf4e0d0) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 11060K 12478K 166960K 13104 0 pcb 17 16K 18K 166960K 318 0 rtable 212 10K 10K 166960K 544 0 pf 40 19K 26K 166960K 553 0 ifaddr 39 6K 7K 166960K 119 0 ifgroup 56 2K 2K 166960K 204 0 sysctl 4 1K 9K 166960K 15 0 counters 68 36K 37K 166960K 206 0 ioctlops 0 0K 8K 166960K 1681 0 iov 1 4K 28K 166960K 70 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1497 94K 94K 166960K 2656 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 13K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 113 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 85K 166960K 1182 0 sigio 0 0K 0K 166960K 29 0 proc 75 131K 147K 166960K 754 0 subproc 72 4K 4K 166960K 110 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 286 0 in_multi 80 5K 7K 166960K 188 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 570 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 248 172K 181K 166960K 12472 0 UVM aobj 29 2K 3K 166960K 32 0 pinsyscall 42 84K 98K 166960K 2383 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 59 0 NDP 12 0K 1K 166960K 82 0 temp 66 8649K 8737K 166960K 39553 0 kqueue 14 22K 31K 166960K 265 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 120 174 0 171 3 2 1 3 0 8 0 rtentry 176 164 0 84 5 0 5 5 0 8 0 unpcb 144 822 0 799 4 3 1 4 0 8 0 syncache 336 6 0 6 3 2 1 1 0 8 1 tcpqe 32 2 0 2 2 1 1 1 0 8 1 tcpcb 736 277 0 264 6 4 2 4 0 8 0 arp 128 18 0 6 1 0 1 1 0 8 0 inpcb 328 1472 0 1453 22 15 7 13 0 8 4 nd6 144 29 0 16 1 0 1 1 0 8 0 pkpcb 40 11 0 11 3 2 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 49 0 49 3 2 1 1 0 8 1 pppxif 1504 7 0 7 3 2 1 1 0 8 1 pfstscr 40 6 0 5 1 0 1 1 0 8 0 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 5 0 0 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 1 0 1 1 0 1 1 0 8 1 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 74 0 24 1 0 1 1 0 8 0 pfstkey 128 81 0 31 2 0 2 2 0 8 0 pfstate 384 77 0 28 5 0 5 5 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 4 0 0 4 0 4 4 0 8 0 art_heap4 256 795 0 427 31 6 25 28 0 8 1 art_table 40 799 0 427 5 0 5 5 0 8 0 art_node 32 163 0 94 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 7 2 1 1 1 0 8 0 semupl 112 4 0 4 3 3 0 1 0 8 0 semapl 112 111 0 101 1 0 1 1 0 8 0 shmpl 112 29 0 3 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 3602 0 2086 96 0 96 96 0 8 0 ffsino 296 3602 0 2086 117 0 117 117 0 8 0 nchpl 144 5219 0 3516 64 0 64 64 0 8 0 rtmask 32 5 0 5 2 2 0 1 0 8 0 uvmvnodes 80 4445 0 0 91 0 91 91 0 8 0 vnodes 216 4445 0 0 247 0 247 247 0 8 0 namei 1024 18458 0 18457 4 3 1 2 0 8 0 percpumem 16 118 0 69 1 0 1 1 0 8 0 kstatmem 264 120 0 92 4 1 3 3 0 8 0 scsiplug 72 5 0 5 2 1 1 1 0 8 1 scxspl 216 39988 0 39987 11 10 1 8 1 8 0 plimitpl 152 180 0 161 1 0 1 1 0 8 0 sigapl 424 1504 0 1430 9 0 9 9 0 8 0 knotepl 120 565 0 0 17 0 17 17 0 8 0 kqueuepl 224 464 0 454 3 1 2 3 0 8 1 pipepl 344 381 0 354 12 3 9 9 0 8 6 fdescpl 528 1458 0 1427 3 0 3 3 0 8 0 filepl 160 10369 0 10137 21 6 15 17 0 8 2 lockfpl 104 722 0 720 3 2 1 2 0 8 0 lockfspl 48 186 0 184 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 56 0 39 1 0 1 1 0 8 0 ucredpl 104 1981 0 1967 1 0 1 1 0 8 0 zombiepl 144 1859 0 1856 3 2 1 1 0 8 0 processpl 1248 1504 0 1430 6 0 6 6 0 8 0 procpl 664 3311 0 3228 9 0 9 9 0 8 0 sosppl 168 14 0 13 4 3 1 1 0 8 0 sockpl 752 2521 0 2476 25 15 10 17 0 8 4 mcl64k 65536 4 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 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 46 0 0 6 0 6 6 0 8 0 mtagpl 96 10 0 0 1 0 1 1 0 8 0 mbufpl 256 391 0 0 24 0 24 24 0 8 0 bufpl 280 16939 0 10795 440 0 440 440 0 8 0 anonpl 32 13965 0 0 113 0 113 113 0 246 0 amapchunkpl 152 41677 0 41156 47 20 27 33 0 158 3 amappl16 200 6683 0 6412 49 31 18 22 0 8 2 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 131 0 119 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 2163 0 2132 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 262 0 262 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 125 0 113 1 0 1 1 0 8 0 amappl6 120 222 0 218 1 0 1 1 0 8 0 amappl5 112 144 0 133 1 0 1 1 0 8 0 amappl4 104 322 0 300 1 0 1 1 0 8 0 amappl3 96 8295 0 8175 4 0 4 4 0 8 0 amappl2 88 718 0 656 2 0 2 2 0 8 0 amappl1 80 13514 0 12909 16 1 15 15 0 8 0 amappl 88 11528 0 11355 5 0 5 5 0 92 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 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 3 2 1 1 0 8 1 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 31 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1458 0 1427 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1458 0 1427 1 0 1 1 0 8 0 vmmpekpl 168 13508 0 13460 3 0 3 3 0 8 0 vmmpepl 168 99701 0 97451 125 16 109 109 0 357 5 vmsppl 488 1457 0 1427 6 1 5 5 0 8 0 rwobjpl 80 33846 0 28177 117 0 117 117 0 8 0 pdppl 4096 2924 0 2854 104 32 72 82 0 8 2 pvpl 32 23048 0 0 186 0 186 186 0 265 0 pmappl 256 1457 0 1427 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 305 0 50 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x71fd2edd7390, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x57 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x57 sys/dev/acpi/acpitimer.c:120 comcnputc(800,31) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(31) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff833149ec) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833d06d1) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a30fa10,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a30fa10) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:491 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80002a30faf0, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x57 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x57 sys/dev/acpi/acpitimer.c:120 comcnputc(800,31) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(31) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff833149ec) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833d06d1) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a30fa10,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a30fa10) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:491 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001532000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(31e5f,81,2000,ffff800038c1e7f0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(31e5f,81,2000,ffff800038c1e7f0) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a30fbc0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068c0e498,81,fffffd80097fb4e0,ffff800038c1e7f0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805ec25788,ffff800038c1e7f0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805ec25788,ffff800038c1e7f0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805ec25788,ffff800038c1e7f0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805ec25788,ffff800038c1e7f0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800038c1e7f0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800038c1e7f0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800038c1e7f0,ffff80002a30ff30,ffff80002a30fe80) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a30ff30) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a30ff30) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7912fd947130, count: -26