*cpu1: uvm_fault(0xfffffd80762b4e70, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xdc end of kernel end trace frame: 0x7f7ffffbbb50, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800027af88b0 rbx 0 rdx 0 rcx 0 rax 0x2a r8 0xffff800027af87e0 r9 0 r10 0x28c77be3160478e3 r11 0x285c900cf82ec285 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff823af50c proc_trampoline+0xdc cs 0x8 rflags 0x246 rsp 0xffff800027af8830 ss 0 proc_trampoline+0xdc: movl $0,%gs:0x538 ddb{0}> show proc PROC (syz-executor.3) pid=427184 stat=onproc flags process=10 proc=0 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff5ce8,0xffff8000ffff4a98 process=0xffff80002116d900 user=0xffff800027af3000, vmspace=0xfffffd8066a59e78 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *31165 427184 58708 32767 7 0x10 syz-executor.3 69192 346612 75684 32767 3 0x90 nanoslp syz-executor.2 69192 358861 75684 32767 3 0x4000090 fsleep syz-executor.2 69192 305775 75684 32767 2 0x4000010 syz-executor.2 54042 183253 75116 32767 2 0x10 syz-executor.0 54042 97026 75116 32767 3 0x4000090 netio syz-executor.0 81157 503514 35466 32767 2 0x10 syz-executor.5 81157 162630 35466 32767 7 0x4000010 syz-executor.5 81157 177708 35466 32767 2 0x4000010 syz-executor.5 84736 317076 64605 32767 3 0x90 nanoslp syz-executor.6 84736 297946 64605 32767 3 0x4000090 netio syz-executor.6 64605 197691 1482 32767 3 0x90 nanoslp syz-executor.6 1482 187718 14402 0 3 0x82 wait syz-executor.6 58708 249590 10888 32767 3 0x90 nanoslp syz-executor.3 10888 200213 14402 0 3 0x82 wait syz-executor.3 35466 106751 61194 32767 3 0x90 nanoslp syz-executor.5 61194 144873 14402 0 3 0x82 wait syz-executor.5 91180 414768 0 0 3 0x14200 bored sosplice 67420 188154 46010 32767 3 0x90 nanoslp syz-executor.7 46010 198247 14402 0 3 0x82 wait syz-executor.7 6485 355003 13990 32767 3 0x10 biowait syz-executor.4 13990 108634 14402 0 3 0x82 wait syz-executor.4 81503 55489 26425 32767 3 0x10 biowait syz-executor.1 75684 247753 79867 32767 3 0x90 nanoslp syz-executor.2 79867 14925 14402 0 3 0x82 wait syz-executor.2 26425 221526 14402 0 3 0x82 wait syz-executor.1 75116 317015 61496 32767 3 0x90 nanoslp syz-executor.0 61496 432654 14402 0 3 0x82 wait syz-executor.0 14402 52454 94740 0 3 0x82 thrsleep syz-fuzzer 14402 121786 94740 0 3 0x4000082 nanoslp syz-fuzzer 14402 121645 94740 0 3 0x4000082 thrsleep syz-fuzzer 14402 241420 94740 0 3 0x4000082 thrsleep syz-fuzzer 14402 218983 94740 0 3 0x4000082 kqread syz-fuzzer 14402 159364 94740 0 3 0x4000082 thrsleep syz-fuzzer 14402 521264 94740 0 3 0x4000082 thrsleep syz-fuzzer 14402 405421 94740 0 3 0x4000082 thrsleep syz-fuzzer 14402 26459 94740 0 3 0x4000082 thrsleep syz-fuzzer 14402 318084 94740 0 3 0x4000082 nanoslp syz-fuzzer 94740 247027 99308 0 3 0x10008a sigsusp ksh 99308 86165 85791 0 3 0x9a kqread sshd 45430 284632 1 0 3 0x100083 ttyin getty 85791 518851 1 0 3 0x88 kqread sshd 14026 243337 56893 73 3 0x1100090 kqread syslogd 56893 188294 1 0 3 0x100082 netio syslogd 56909 522565 1 0 3 0x100080 kqread resolvd 68651 292639 33520 77 3 0x100092 kqread dhcpleased 67478 369178 33520 77 3 0x100092 kqread dhcpleased 33520 72940 1 0 3 0x80 kqread dhcpleased 7673 337117 0 0 3 0x14200 bored smr 9444 192621 0 0 2 0x14200 zerothread 19557 389833 0 0 3 0x14200 aiodoned aiodoned 18086 132024 0 0 3 0x14200 syncer update 66165 207445 0 0 3 0x14200 cleaner cleaner 50542 60743 0 0 3 0x14200 reaper reaper 30828 106397 0 0 3 0x14200 pgdaemon pagedaemon 18510 163107 0 0 3 0x14200 bored viomb 86737 121181 0 0 3 0x40014200 acpi0 acpi0 32059 168564 0 0 3 0x40014200 idle1 36604 407328 0 0 3 0x14200 bored softnet 25588 462766 0 0 3 0x14200 bored systqmp 93095 77108 0 0 3 0x14200 bored systq 29081 340144 0 0 3 0x40014200 bored softclock 77281 12267 0 0 3 0x40014200 idle0 1 384419 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806a90eac8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_extract+0xa2 sys/arch/amd64/amd64/pmap.c:1517 #4 uvm_fault_upper_lookup+0x129 sys/uvm/uvm_fault.c:852 #5 uvm_fault+0x139 sys/uvm/uvm_fault.c:607 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #8 recall_trap+0x8 Process 31165 (syz-executor.3) thread 0xffff8000ffff5508 (427184) exclusive rwlock amaplk r = 0 (0xfffffd80679e5128) #0 witness_lock+0x44d #1 uvm_fault_check+0x3ca sys/uvm/uvm_fault.c:774 #2 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #3 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #4 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8066a59e90) #0 witness_lock+0x44d #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1758 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 #3 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #4 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #5 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806a90eac8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_extract+0xa2 sys/arch/amd64/amd64/pmap.c:1517 #4 uvm_fault_upper_lookup+0x129 sys/uvm/uvm_fault.c:852 #5 uvm_fault+0x139 sys/uvm/uvm_fault.c:607 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #8 recall_trap+0x8 Process 81157 (syz-executor.5) thread 0xffff800027b27a50 (162630) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff829b2b50) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x198 sys/kern/kern_synch.c:433 #4 tsleep+0x12c sys/kern/kern_synch.c:158 #5 biowait+0x91 sys/kern/vfs_bio.c:1271 #6 bwrite+0x21b sys/kern/vfs_bio.c:772 #7 VOP_BWRITE+0x4a sys/kern/vfs_vops.c:656 #8 ufs_direnter+0x8fa sys/ufs/ufs/ufs_lookup.c:909 #9 ufs_makeinode+0x4cc sys/ufs/ufs/ufs_vnops.c:1868 #10 ufs_symlink+0x47 sys/ufs/ufs/ufs_vnops.c:1382 #11 VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:442 #12 dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1804 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806eb214e0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vget+0x1d3 sys/kern/vfs_subr.c:677 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_makeinode+0xae sys/ufs/ufs/ufs_vnops.c:1830 #10 ufs_symlink+0x47 sys/ufs/ufs/ufs_vnops.c:1382 #11 VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:442 #12 dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1804 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 Process 6485 (syz-executor.4) thread 0xffff80002116b7a0 (355003) exclusive rrwlock inode r = 0 (0xfffffd806eb212c0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068eff2b8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 81503 (syz-executor.1) thread 0xffff80002116bce0 (55489) exclusive rrwlock inode r = 0 (0xfffffd80677a3a38) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vget+0x1d3 sys/kern/vfs_subr.c:677 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #11 namei+0x36a sys/kern/vfs_lookup.c:245 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068effb38) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 6411K 6419K 78643K 11305 0 pcb 13 12K 14K 78643K 17 0 rtable 248 7K 7K 78643K 536 0 ifaddr 81 16K 16K 78643K 110 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 35K 78643K 64 0 ioctlops 0 0K 2K 78643K 94 0 iov 0 0K 12K 78643K 433 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1270 79K 79K 78643K 1845 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 19 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 906 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 125K 78643K 2807 0 sigio 0 0K 0K 78643K 16 0 proc 56 74K 99K 78643K 768 0 subproc 104 6K 6K 78643K 156 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 378 0 in_multi 99 6K 6K 78643K 177 0 ether_multi 1 0K 0K 78643K 18 0 mrt 2 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 223 996K 996K 78643K 223 0 exec 0 0K 2K 78643K 1046 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 374 95K 108K 78643K 37537 0 UVM aobj 52 6K 6K 78643K 52 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 93 0 NDP 11 0K 2K 78643K 39 0 temp 125 4703K 4767K 78643K 10643 0 kqueue 12 18K 26K 78643K 309 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 119 0 116 1 0 1 1 0 8 0 rtentry 112 161 0 46 4 0 4 4 0 8 0 unpcb 136 2652 0 2573 23 20 3 6 0 8 0 syncache 296 31 0 31 6 5 1 1 0 8 1 tcpqe 32 6 0 6 3 3 0 1 0 8 0 tcpcb 736 1328 0 1305 40 34 6 17 0 8 3 arp 120 27 0 8 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 5 0 5 1 1 0 1 0 8 0 inpcb 304 5676 0 5563 42 32 10 15 0 8 1 ip6q 72 18 0 18 1 1 0 1 0 8 0 ip6af 40 35 0 35 1 1 0 1 0 8 0 nd6 48 41 0 13 1 0 1 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 638 0 177 29 0 29 29 0 8 0 art_table 32 639 0 177 4 0 4 4 0 8 0 art_node 16 160 0 55 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 6 2 1 1 1 0 8 0 semapl 112 904 0 894 1 0 1 1 0 8 0 shmpl 112 49 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 5037 0 3606 91 0 91 91 0 8 0 ffsino 272 5037 0 3606 97 0 97 97 0 8 0 nchpl 144 8770 0 7146 62 0 62 62 0 8 0 uvmvnodes 80 5202 0 0 107 0 107 107 0 8 0 vnodes 224 5202 0 0 306 0 306 306 0 8 0 namei 1024 29768 0 29765 2 1 1 2 0 8 0 percpumem 16 44 0 4 1 0 1 1 0 8 0 scxspl 216 25267 0 25265 16 14 2 8 0 8 1 plimitpl 152 338 0 316 1 0 1 1 0 8 0 sigapl 424 3075 0 3025 7 1 6 7 0 8 0 futexpl 64 24140 0 24139 1 0 1 1 0 8 0 knotepl 120 216 0 0 6 0 6 6 0 8 0 kqueuepl 216 1178 0 1169 21 16 5 5 0 8 4 pipepl 336 990 0 962 23 17 6 8 0 8 3 fdescpl 496 3060 0 3026 6 1 5 6 0 8 0 filepl 152 22904 0 22502 43 27 16 19 0 8 0 lockfpl 104 520 0 518 1 0 1 1 0 8 0 lockfspl 48 187 0 185 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 119 0 103 1 0 1 1 0 8 0 ucredpl 96 2971 0 2953 1 0 1 1 0 8 0 zombiepl 144 3026 0 3025 1 0 1 1 0 8 0 processpl 1064 3075 0 3025 4 0 4 4 0 8 0 procpl 672 8507 0 8442 9 2 7 8 0 8 0 sosppl 168 26 0 26 5 4 1 1 0 8 1 sockpl 480 8694 0 8501 180 155 25 34 0 8 0 mcl64k 65536 23 0 0 3 0 3 3 0 8 0 mcl16k 16384 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 10 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 165 0 0 18 1 17 18 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 355 0 0 18 0 18 18 0 8 0 bufpl 288 8232 0 1897 453 0 453 453 0 8 0 anonpl 24 855018 0 840386 186 53 133 133 0 186 26 amapchunkpl 152 104397 0 103556 66 29 37 50 0 158 1 amappl16 200 9608 0 9264 90 62 28 44 0 8 8 amappl15 192 437 0 429 1 0 1 1 0 8 0 amappl14 184 12 0 8 1 0 1 1 0 8 0 amappl13 176 103 0 102 1 0 1 1 0 8 0 amappl12 168 1039 0 1031 1 0 1 1 0 8 0 amappl11 160 701 0 682 1 0 1 1 0 8 0 amappl10 152 52 0 45 1 0 1 1 0 8 0 amappl9 144 1114 0 1107 1 0 1 1 0 8 0 amappl8 136 725 0 642 3 0 3 3 0 8 0 amappl7 128 131 0 119 1 0 1 1 0 8 0 amappl6 120 866 0 840 2 1 1 2 0 8 0 amappl5 112 2404 0 2385 1 0 1 1 0 8 0 amappl4 104 1942 0 1908 1 0 1 1 0 8 0 amappl3 96 1390 0 1373 1 0 1 1 0 8 0 amappl2 88 1114 0 1066 3 1 2 3 0 8 0 amappl1 80 58470 0 57845 23 9 14 18 0 8 0 amappl 88 36949 0 36679 8 0 8 8 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 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 51 0 0 1 0 1 1 0 8 0 uaddrrnd 24 3060 0 3026 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3060 0 3026 1 0 1 1 0 8 0 vmmpekpl 168 30222 0 30178 3 0 3 3 0 8 0 vmmpepl 168 285230 0 282660 184 46 138 138 0 357 16 vmsppl 368 3059 0 3026 4 0 4 4 0 8 0 rwobjpl 56 76820 0 70238 97 0 97 97 0 8 1 pdppl 4096 6127 0 6052 158 77 81 95 0 8 6 pvpl 32 1493810 0 1473982 304 85 219 239 0 265 36 pmappl 248 3059 0 3026 3 0 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 951 0 132 24 0 24 24 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xdc end of kernel end trace frame: 0x7f7ffffbbb50, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_write_1(3f8,0,2d) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,2d) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,2d) at comcnputc+0x128 sys/dev/ic/com.c:1263 cnputc(2d) at cnputc+0x4b sys/dev/cons.c:239 db_putchar(2d) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1068 db_printf(ffffffff82627876) at db_printf+0x85 sys/kern/subr_prf.c:502 fault(ffffffff825d5252) at fault+0x95 sys/arch/amd64/amd64/trap.c:154 kpageflttrap(ffff800027b479b0,8) at kpageflttrap+0x25a sys/arch/amd64/amd64/trap.c:275 kerntrap(ffff800027b479b0) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff800027b47ab0) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:271 end trace frame: 0xffff800027b47b20, count: 0 ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_write_1(3f8,0,2d) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,2d) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,2d) at comcnputc+0x128 sys/dev/ic/com.c:1263 cnputc(2d) at cnputc+0x4b sys/dev/cons.c:239 db_putchar(2d) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1068 db_printf(ffffffff82627876) at db_printf+0x85 sys/kern/subr_prf.c:502 fault(ffffffff825d5252) at fault+0x95 sys/arch/amd64/amd64/trap.c:154 kpageflttrap(ffff800027b479b0,8) at kpageflttrap+0x25a sys/arch/amd64/amd64/trap.c:275 kerntrap(ffff800027b479b0) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff800027b47ab0) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:271 VOP_WRITE(fffffd8079edad50,ffff800027b47b48,8,fffffd807f7d87e0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8079edad50,ffff800021161800,ae,0,1,29fe8821b3e0b619,ffff800027b47c70,fffffd8079edad50,78) at vn_rdwr+0xe9 sys/kern/vfs_vnops.c:330 ufs_symlink(ffff800027b47c70) at ufs_symlink+0x142 sys/ufs/ufs/ufs_vnops.c:1398 VOP_SYMLINK(fffffd8079eda570,ffff800027b47df0,ffff800027b47e20,ffff800027b47d20,ffff800021161800) at VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:442 dosymlinkat(ffff800027b27a50,200000c0,5,20d06ff8) at dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1804 syscall(ffff800027b47fa0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027b47fa0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa63ddfab00, count: -21