*cpu1: uvm_fault(0xfffffd806b819c60, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x768dd5ec2de0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800030af6110 rbx 0 rdx 0 rcx 0xffff80002a259558 rax 0x2a r8 0xffff800030af6040 r9 0 r10 0x11e44847cc6b0216 r11 0x49fd99f83fd2f2b5 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff81ebb4d7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff800030af6090 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x660 ddb{0}> show proc PROC (syz-executor.5) tid=64673 pid=23720 tcnt=1 stat=onproc flags process=10 proc=0 runpri=80, usrpri=80, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a259800,0xffff80002a259ab8 process=0xffff8000ffff0020 user=0xffff800030af1000, vmspace=0xfffffd806b8193a0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4720 65791 84791 32767 2 0x10 syz-executor.1 *23720 64673 61937 32767 7 0x10 syz-executor.5 50587 240391 7942 32767 2 0x10 syz-executor.6 52361 403992 60322 32767 2 0x10 syz-executor.3 52361 451164 60322 32767 3 0x4000090 fsleep syz-executor.3 52361 498680 60322 32767 3 0x4000090 fsleep syz-executor.3 52361 308323 60322 32767 3 0x4000090 fsleep syz-executor.3 32668 313260 80523 32767 2 0x10 syz-executor.0 32668 323165 80523 32767 7 0x4000010 syz-executor.0 32485 331805 13686 32767 3 0x90 nanoslp syz-executor.4 32485 199012 13686 32767 3 0x4000090 netcon syz-executor.4 32485 381730 13686 32767 3 0x4000090 fsleep syz-executor.4 11192 346283 96916 32767 3 0x90 nanoslp syz-executor.2 11192 457109 96916 32767 3 0x4000090 netio syz-executor.2 11192 426091 96916 32767 3 0x4000090 fsleep syz-executor.2 7942 10755 29070 32767 3 0x90 nanoslp syz-executor.6 29070 123711 39299 0 3 0x82 wait syz-executor.6 22139 79771 0 0 3 0x14200 bored sosplice 61937 446669 60080 32767 3 0x90 nanoslp syz-executor.5 27229 168828 76803 32767 2 0x10 syz-executor.7 60080 222903 39299 0 3 0x82 wait syz-executor.5 76803 461578 39299 0 3 0x82 wait syz-executor.7 13686 368535 45894 32767 3 0x90 nanoslp syz-executor.4 60322 499023 28953 32767 3 0x90 nanoslp syz-executor.3 84791 248736 50015 32767 2 0x10 syz-executor.1 96916 145896 95546 32767 3 0x90 nanoslp syz-executor.2 45894 311195 39299 0 3 0x82 wait syz-executor.4 28953 500829 39299 0 3 0x82 wait syz-executor.3 50015 160932 39299 0 3 0x82 wait syz-executor.1 80523 316945 97349 32767 3 0x90 nanoslp syz-executor.0 95546 97484 39299 0 3 0x82 wait syz-executor.2 97349 306076 39299 0 3 0x82 wait syz-executor.0 39299 210453 48085 0 3 0x2000082 thrsleep syz-fuzzer 39299 213594 48085 0 3 0x6000082 thrsleep syz-fuzzer 39299 240163 48085 0 3 0x6000082 wait syz-fuzzer 39299 421927 48085 0 3 0x6000082 wait syz-fuzzer 39299 361034 48085 0 3 0x6000082 kqread syz-fuzzer 39299 361893 48085 0 3 0x6000082 wait syz-fuzzer 39299 232410 48085 0 3 0x6000082 wait syz-fuzzer 39299 456395 48085 0 3 0x6000082 wait syz-fuzzer 39299 23505 48085 0 3 0x6000082 thrsleep syz-fuzzer 39299 416755 48085 0 3 0x6000082 wait syz-fuzzer 39299 55563 48085 0 3 0x6000082 thrsleep syz-fuzzer 39299 119141 48085 0 3 0x6000082 wait syz-fuzzer 39299 278982 48085 0 3 0x6000082 thrsleep syz-fuzzer 39299 273119 48085 0 3 0x6000082 thrsleep syz-fuzzer 39299 394555 48085 0 3 0x6000082 wait syz-fuzzer 48085 292375 50621 0 3 0x10008a sigsusp ksh 50621 92958 46115 0 3 0x9a kqread sshd 47732 251967 1 0 3 0x100083 ttyin getty 46115 284741 1 0 3 0x88 kqread sshd 87716 394585 37555 73 3 0x1100090 kqread syslogd 37555 290120 1 0 3 0x100082 netio syslogd 39189 95737 1 0 3 0x100080 kqread resolvd 2060 520860 95927 77 3 0x100092 kqread dhcpleased 75367 514535 95927 77 3 0x100092 kqread dhcpleased 95927 390429 1 0 3 0x80 kqread dhcpleased 92368 139867 0 0 3 0x14200 bored smr 31627 481803 0 0 2 0x14200 zerothread 16189 159007 0 0 3 0x14200 aiodoned aiodoned 23965 203598 0 0 3 0x14200 syncer update 22573 451909 0 0 3 0x14200 cleaner cleaner 10298 215721 0 0 3 0x14200 reaper reaper 56690 399995 0 0 3 0x14200 pgdaemon pagedaemon 41404 396966 0 0 3 0x14200 bored viomb 84921 207520 0 0 3 0x40014200 acpi0 acpi0 86105 502580 0 0 3 0x40014200 idle1 72309 252733 0 0 3 0x14200 bored softnet3 78491 206266 0 0 3 0x14200 bored softnet2 43108 66122 0 0 3 0x14200 bored softnet1 58816 103415 0 0 3 0x14200 bored softnet0 21142 156784 0 0 3 0x14200 bored systqmp 21921 277489 0 0 3 0x14200 bored systq 86422 283734 0 0 3 0x14200 tmoslp softclockmp 74934 476683 0 0 3 0x40014200 tmoslp softclock 7561 206906 0 0 3 0x40014200 idle0 1 28158 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82db02b0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 uvm_pmr_getpages+0xeac sys/uvm/uvm_pmemrange.c:1205 #4 uvm_pagealloc+0x1a8 sys/uvm/uvm_page.c:910 #5 pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 #6 pmap_enter+0x2be sys/arch/amd64/amd64/pmap.c:2722 #7 uvm_fault_lower_lookup+0x2a4 sys/uvm/uvm_fault.c:1192 #8 uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227 #9 uvm_fault+0x238 #10 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #11 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #12 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd8066b365e0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c3 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:423 [inline] #3 pmap_enter+0x1c3 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_lower_lookup+0x2a4 sys/uvm/uvm_fault.c:1192 #5 uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227 #6 uvm_fault+0x238 #7 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 23720 (syz-executor.5) thread 0xffff80002a259558 (64673) exclusive rwlock uobjlk r = 0 (0xfffffd806f5a6ac8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 uvm_fault_lower_lookup+0x4a sys/uvm/uvm_fault.c:1126 #3 uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227 #4 uvm_fault+0x238 #5 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b819498) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82db02b0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 uvm_pmr_getpages+0xeac sys/uvm/uvm_pmemrange.c:1205 #4 uvm_pagealloc+0x1a8 sys/uvm/uvm_page.c:910 #5 pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 #6 pmap_enter+0x2be sys/arch/amd64/amd64/pmap.c:2722 #7 uvm_fault_lower_lookup+0x2a4 sys/uvm/uvm_fault.c:1192 #8 uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227 #9 uvm_fault+0x238 #10 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #11 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #12 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd8066b365e0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c3 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:423 [inline] #3 pmap_enter+0x1c3 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_lower_lookup+0x2a4 sys/uvm/uvm_fault.c:1192 #5 uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1227 #6 uvm_fault+0x238 #7 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 32668 (syz-executor.0) thread 0xffff80002a202ab0 (323165) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d9a770) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 biowait+0x91 sys/kern/vfs_bio.c:1254 #5 bwrite+0x21c sys/kern/vfs_bio.c:766 #6 VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 #7 ufs_direnter+0x646 sys/ufs/ufs/ufs_lookup.c:833 #8 ufs_makeinode+0x499 sys/ufs/ufs/ufs_vnops.c:1779 #9 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1308 #10 VOP_SYMLINK+0xd4 sys/kern/vfs_vops.c:426 #11 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1801 #12 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806827e1a8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xae sys/ufs/ufs/ufs_vnops.c:1743 #10 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1308 #11 VOP_SYMLINK+0xd4 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1801 #13 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #13 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10181 6408K 6419K 166960K 11262 0 pcb 15 14K 16K 166960K 19 0 rtable 244 6K 7K 166960K 1517 0 pf 29 8K 8K 166960K 31 0 ifaddr 44 15K 15K 166960K 50 0 ifgroup 50 2K 2K 166960K 54 0 sysctl 1 0K 0K 166960K 1 0 counters 64 36K 36K 166960K 66 0 ioctlops 0 0K 2K 166960K 37 0 iov 0 0K 18K 166960K 297 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1278 80K 80K 166960K 1774 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 42 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1269 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 25 93K 121K 166960K 3121 0 sigio 0 0K 0K 166960K 90 0 proc 56 78K 115K 166960K 596 0 subproc 104 6K 6K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 605 0 in_multi 99 7K 7K 166960K 130 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 716 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 349 86K 91K 166960K 32052 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 673 0 NDP 11 0K 2K 166960K 30 0 temp 74 6772K 6852K 166960K 10743 0 kqueue 12 18K 24K 166960K 233 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 1287 0 1283 8 5 3 3 0 8 2 rtentry 112 132 0 17 4 0 4 4 0 8 0 unpcb 144 2247 0 2230 23 17 6 9 0 8 5 syncache 336 33 0 33 6 5 1 1 0 8 1 tcpqe 32 174 0 174 6 5 1 1 0 8 1 tcpcb 808 2713 0 2705 51 43 8 11 0 8 7 arp 120 21 0 2 1 0 1 1 0 8 0 ipq 40 3 0 3 1 1 0 1 0 8 0 ipqe 40 12 0 12 1 1 0 1 0 8 0 inpcb 392 4507 0 4493 56 47 9 15 0 8 7 nd6 136 36 0 8 2 0 2 2 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 528 0 66 30 1 29 30 0 8 0 art_table 32 529 0 66 4 0 4 4 0 8 0 art_node 16 131 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 1253 0 1243 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 5254 0 3810 91 0 91 91 0 8 0 ffsino 272 5254 0 3810 97 0 97 97 0 8 0 nchpl 144 9336 0 7694 63 0 63 63 0 8 0 uvmvnodes 80 5380 0 0 110 0 110 110 0 8 0 vnodes 216 5380 0 0 299 0 299 299 0 8 0 namei 1024 28804 0 28803 2 1 1 2 0 8 0 percpumem 16 47 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 29832 0 29832 22 19 3 8 1 8 3 plimitpl 152 896 0 873 8 7 1 2 0 8 0 sigapl 424 3407 0 3352 7 0 7 7 0 8 0 futexpl 64 30502 0 30497 1 0 1 1 0 8 0 knotepl 120 123 0 0 4 0 4 4 0 8 0 kqueuepl 216 998 0 988 24 19 5 5 0 8 4 pipepl 320 831 0 803 30 27 3 11 0 8 0 fdescpl 496 3388 0 3352 7 2 5 6 0 8 0 filepl 152 21696 0 21452 45 30 15 18 0 8 5 lockfpl 104 635 0 633 1 0 1 1 0 8 0 lockfspl 48 119 0 117 1 0 1 1 0 8 0 sessionpl 144 24 0 8 1 0 1 1 0 8 0 pgrppl 48 43 0 27 1 0 1 1 0 8 0 ucredpl 104 2718 0 2700 1 0 1 1 0 8 0 zombiepl 144 3352 0 3352 1 0 1 1 0 8 1 processpl 1136 3407 0 3352 5 0 5 5 0 8 0 procpl 680 8573 0 8496 13 5 8 8 0 8 1 srpgc 96 1 0 1 1 1 0 1 0 8 0 sosppl 168 49 0 48 4 3 1 1 0 8 0 sockpl 584 8236 0 8204 62 50 12 17 0 8 9 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 42 0 0 4 1 3 4 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 250 0 0 32 1 31 32 0 8 1 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 4550 0 0 278 0 278 278 0 8 0 bufpl 280 10025 0 3708 452 0 452 452 0 8 0 anonpl 24 484087 0 472382 125 33 92 98 0 186 0 amapchunkpl 152 100860 0 99999 47 8 39 40 0 158 1 amappl16 200 13252 0 12901 76 53 23 32 0 8 0 amappl15 192 35 0 35 1 1 0 1 0 8 0 amappl14 184 153 0 142 2 1 1 2 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 4011 0 3976 2 0 2 2 0 8 0 amappl11 160 61 0 50 1 0 1 1 0 8 0 amappl10 152 32 0 20 1 0 1 1 0 8 0 amappl9 144 193 0 191 1 0 1 1 0 8 0 amappl8 136 284 0 209 3 0 3 3 0 8 0 amappl7 128 176 0 155 2 0 2 2 0 8 0 amappl6 120 302 0 289 1 0 1 1 0 8 0 amappl5 112 180 0 169 1 0 1 1 0 8 0 amappl4 104 511 0 482 2 1 1 2 0 8 0 amappl3 96 20430 0 20337 7 4 3 4 0 8 0 amappl2 88 3985 0 3909 3 1 2 3 0 8 0 amappl1 80 19982 0 19446 23 10 13 22 0 8 0 amappl 88 31460 0 31222 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 3388 0 3352 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3388 0 3352 1 0 1 1 0 8 0 vmmpekpl 168 29505 0 29439 4 0 4 4 0 8 0 vmmpepl 168 216079 0 213635 161 47 114 129 0 357 0 vmsppl 448 3387 0 3352 5 0 5 5 0 8 0 rwobjpl 56 65837 0 58954 102 4 98 98 0 8 0 pdppl 4096 6783 0 6704 187 106 81 93 0 8 2 pvpl 32 41582 0 0 336 0 336 336 0 265 0 pmappl 248 3387 0 3352 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 873 0 215 19 0 19 19 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: 0x768dd5ec2de0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x2c sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,65) at comcnputc+0x1a7 sys/dev/ic/com.c:1270 cnputc(65) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828b9d1c) at db_printf+0x89 sys/kern/subr_prf.c:498 db_ktrap(6,0,ffff800030b16760) at db_ktrap+0xb5 db_printtrap sys/arch/amd64/amd64/db_interface.c:98 [inline] db_ktrap(6,0,ffff800030b16760) at db_ktrap+0xb5 sys/arch/amd64/amd64/db_interface.c:127 kerntrap(ffff800030b16760) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff800030b16860) at fifo_write+0x52 sys/miscfs/fifofs/fifo_vnops.c:271 VOP_WRITE(fffffd8078b85eb0,ffff800030b168f8,8,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 end trace frame: 0xffff800030b16990, count: 0 ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x2c sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,65) at comcnputc+0x1a7 sys/dev/ic/com.c:1270 cnputc(65) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828b9d1c) at db_printf+0x89 sys/kern/subr_prf.c:498 db_ktrap(6,0,ffff800030b16760) at db_ktrap+0xb5 db_printtrap sys/arch/amd64/amd64/db_interface.c:98 [inline] db_ktrap(6,0,ffff800030b16760) at db_ktrap+0xb5 sys/arch/amd64/amd64/db_interface.c:127 kerntrap(ffff800030b16760) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff800030b16860) at fifo_write+0x52 sys/miscfs/fifofs/fifo_vnops.c:271 VOP_WRITE(fffffd8078b85eb0,ffff800030b168f8,8,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8078b85eb0,ffff80002a20c000,fc,0,1,2ade644dd072866b,ffff800030b16a20,fffffd8078b85eb0,78) at vn_rdwr+0xed sys/kern/vfs_vnops.c:324 ufs_symlink(ffff800030b16a20) at ufs_symlink+0x12a sys/ufs/ufs/ufs_vnops.c:1324 VOP_SYMLINK(fffffd806155d570,ffff800030b16ba0,ffff800030b16bd0,ffff800030b16ad0,ffff80002a20c000) at VOP_SYMLINK+0xd4 sys/kern/vfs_vops.c:426 dosymlinkat(ffff80002a202ab0,20000200,ffffff9c,20000080) at dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1801 syscall(ffff800030b16d50) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800030b16d50) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x158a5804160, count: -20