*cpu1: uvm_fault(0xfffffd8068453e20, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x76f0a5e1c020, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800036fe8880 rbx 0 rdx 0 rcx 0xffff80002a187000 rax 0x2a r8 0xffff800036fe87b0 r9 0 r10 0xcf68897abb28b66e r11 0x6c4f5940486d636a r12 0 r13 0 r14 0 r15 0 rip 0xffffffff819bc4d7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff800036fe8800 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x660 ddb{0}> show proc PROC (syz-executor.6) tid=159314 pid=10306 tcnt=1 stat=onproc flags process=10 proc=0 runpri=70, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a2132b0,0xffffffff82e718d0 process=0xffff8000ffff4d60 user=0xffff800036fe3000, vmspace=0xfffffd8068453aa0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *10306 159314 97884 32767 7 0x10 syz-executor.6 26019 371398 41391 32767 3 0x90 nanoslp syz-executor.3 26019 238066 41391 32767 3 0x4000090 fsleep syz-executor.3 26019 169717 41391 32767 3 0x4000090 fsleep syz-executor.3 4410 426322 35300 32767 3 0x90 nanoslp syz-executor.2 4410 458478 35300 32767 3 0x4000090 fsleep syz-executor.2 4410 126030 35300 32767 3 0x4000090 fsleep syz-executor.2 4410 132055 35300 32767 3 0x4000090 fsleep syz-executor.2 29168 201950 59426 32767 3 0x90 nanoslp syz-executor.4 29168 503641 59426 32767 3 0x4000090 kqread syz-executor.4 29168 424602 59426 32767 3 0x4000090 fsleep syz-executor.4 41973 299822 68414 32767 2 0x10 syz-executor.5 41973 4778 68414 32767 7 0x4000010 syz-executor.5 54556 4243 8949 32767 3 0x90 nanoslp syz-executor.0 54556 217905 8949 32767 3 0x4000090 ttyout syz-executor.0 19253 501936 66499 32767 3 0x90 nanoslp syz-executor.7 19253 421455 66499 32767 3 0x4000090 fsleep syz-executor.7 2678 93713 30825 32767 3 0x90 nanoslp syz-executor.1 2678 512499 30825 32767 3 0x4000090 fsleep syz-executor.1 2678 496584 30825 32767 3 0x4000090 fsleep syz-executor.1 2678 93865 30825 32767 3 0x4000090 fifor syz-executor.1 59426 319729 74437 32767 3 0x90 nanoslp syz-executor.4 74437 390422 70221 0 3 0x82 wait syz-executor.4 97884 335475 56747 32767 3 0x90 nanoslp syz-executor.6 56747 467639 70221 0 3 0x82 wait syz-executor.6 66499 474590 78306 32767 3 0x90 nanoslp syz-executor.7 78306 106254 70221 0 3 0x82 wait syz-executor.7 41391 247230 38259 32767 3 0x90 nanoslp syz-executor.3 38259 228001 70221 0 3 0x82 wait syz-executor.3 8949 114294 99490 32767 3 0x90 nanoslp syz-executor.0 99490 310178 70221 0 3 0x82 wait syz-executor.0 30825 266085 94829 32767 3 0x90 nanoslp syz-executor.1 94829 416877 70221 0 3 0x82 wait syz-executor.1 68414 476760 61734 32767 3 0x90 nanoslp syz-executor.5 61734 411267 70221 0 3 0x82 wait syz-executor.5 4654 348813 0 0 3 0x14200 bored sosplice 35300 344366 95564 32767 3 0x90 nanoslp syz-executor.2 95564 232791 70221 0 3 0x82 wait syz-executor.2 70221 390007 1504 0 3 0x1a000082 thrsleep syz-fuzzer 70221 130916 1504 0 3 0x1e000082 nanoslp syz-fuzzer 70221 22420 1504 0 3 0x1e000082 wait syz-fuzzer 70221 121140 1504 0 3 0x1e000082 wait syz-fuzzer 70221 237100 1504 0 3 0x1e000082 thrsleep syz-fuzzer 70221 5522 1504 0 3 0x1e000082 wait syz-fuzzer 70221 201716 1504 0 3 0x1e000082 thrsleep syz-fuzzer 70221 117467 1504 0 3 0x1e000082 wait syz-fuzzer 70221 227439 1504 0 3 0x1e000082 wait syz-fuzzer 70221 221516 1504 0 3 0x1e000082 thrsleep syz-fuzzer 70221 303063 1504 0 3 0x1e000082 thrsleep syz-fuzzer 70221 110693 1504 0 3 0x1e000082 kqread syz-fuzzer 70221 178734 1504 0 3 0x1e000082 wait syz-fuzzer 70221 251132 1504 0 3 0x1e000082 wait syz-fuzzer 70221 72710 1504 0 3 0x1e000082 thrsleep syz-fuzzer 70221 356229 1504 0 3 0x1e000082 wait syz-fuzzer 1504 353522 42802 0 3 0x810008a sigsusp ksh 42802 366955 25236 0 3 0x1800009a kqread sshd 93027 18714 1 0 3 0x18100083 ttyin getty 25236 471346 1 0 3 0x18000088 kqread sshd 55776 103367 91037 73 3 0x19100090 kqread syslogd 91037 65078 1 0 3 0x18100082 netio syslogd 80279 465712 1 0 3 0x18100080 kqread resolvd 26350 475721 24283 77 3 0x18100092 kqread dhcpleased 4408 25277 24283 77 3 0x18100092 kqread dhcpleased 24283 143030 1 0 3 0x18000080 kqread dhcpleased 9355 504131 0 0 3 0x14200 bored smr 84013 167235 0 0 3 0x14200 pgzero zerothread 5419 40268 0 0 3 0x14200 aiodoned aiodoned 77091 408675 0 0 3 0x14200 syncer update 29221 473120 0 0 3 0x14200 cleaner cleaner 46908 302040 0 0 3 0x14200 reaper reaper 66995 15452 0 0 3 0x14200 pgdaemon pagedaemon 49023 396206 0 0 3 0x14200 bored viomb 57232 364776 0 0 3 0x40014200 acpi0 acpi0 4485 368939 0 0 3 0x40014200 idle1 86036 439151 0 0 3 0x14200 bored softnet3 19184 364483 0 0 3 0x14200 bored softnet2 72154 70335 0 0 3 0x14200 bored softnet1 2227 489636 0 0 3 0x14200 bored softnet0 65208 101731 0 0 3 0x14200 bored systqmp 36001 263401 0 0 3 0x14200 bored systq 98403 91531 0 0 3 0x14200 tmoslp softclockmp 21295 475472 0 0 3 0x40014200 tmoslp softclock 85119 161875 0 0 3 0x40014200 idle0 1 58759 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bc5e6e8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c6 rcr3 machine/cpufunc.h:141 [inline] #3 pmap_enter+0x1c6 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:425 [inline] #3 pmap_enter+0x1c6 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper+0x2b5 sys/uvm/uvm_fault.c:1056 #5 uvm_fault+0x157 sys/uvm/uvm_fault.c:608 #6 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 10306 (syz-executor.6) thread 0xffff80002a187000 (159314) exclusive rwlock amaplk r = 0 (0xfffffd8057c86328) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 uvm_fault_check+0x3fe sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8068453b98) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #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+0x8b sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bc5e6e8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c6 rcr3 machine/cpufunc.h:141 [inline] #3 pmap_enter+0x1c6 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:425 [inline] #3 pmap_enter+0x1c6 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper+0x2b5 sys/uvm/uvm_fault.c:1056 #5 uvm_fault+0x157 sys/uvm/uvm_fault.c:608 #6 upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 41973 (syz-executor.5) thread 0xffff80002a263010 (4778) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e6ef08) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x494 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19d sys/kern/kern_synch.c:414 #4 biowait+0x91 sys/kern/vfs_bio.c:1254 #5 bwrite+0x1fb sys/kern/vfs_bio.c:766 #6 ffs_update+0x27f sys/ufs/ffs/ffs_inode.c:111 #7 ufs_direnter+0x597 sys/ufs/ufs/ufs_lookup.c:726 #8 ufs_makeinode+0x3c2 sys/ufs/ufs/ufs_vnops.c:1769 #9 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1298 #10 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 #11 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 #12 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80684046f8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8e sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vget+0x1fd 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+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xb0 sys/ufs/ufs/ufs_vnops.c:1733 #10 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1298 #11 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 #13 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #13 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10209 6412K 6419K 166960K 11385 0 pcb 15 20K 22K 166960K 23 0 rtable 248 7K 7K 166960K 2491 0 pf 29 8K 8K 166960K 93 0 ifaddr 44 15K 16K 166960K 178 0 ifgroup 50 2K 2K 166960K 178 0 sysctl 4 1K 3K 166960K 13 0 counters 64 36K 36K 166960K 128 0 ioctlops 0 0K 2K 166960K 499 0 iov 0 0K 44K 166960K 2240 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1365 86K 86K 166960K 5480 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 314 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 4125 0 dirhash 12 2K 2K 166960K 279 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 26 97K 117K 166960K 19296 0 sigio 0 0K 0K 166960K 1021 0 proc 56 78K 115K 166960K 2364 0 subproc 104 6K 6K 166960K 520 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 2056 0 in_multi 99 7K 7K 166960K 557 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 3348 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 448 89K 108K 166960K 192049 0 UVM aobj 131 4K 4K 166960K 148 0 pinsyscall 22 44K 100K 166960K 2257 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 431 0 NDP 11 0K 2K 166960K 123 0 temp 74 6812K 6940K 166960K 49774 0 kqueue 13 20K 30K 166960K 2164 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 1428 0 1425 18 17 1 3 0 8 0 rtentry 112 497 0 380 4 0 4 4 0 8 0 unpcb 144 17474 0 17456 148 142 6 10 0 8 5 syncache 336 221 0 221 38 38 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 751 0 751 33 33 0 2 0 8 0 tcpcb 808 8019 0 7991 188 175 13 16 0 8 8 arp 120 86 0 67 1 0 1 1 0 8 0 ipq 40 107 0 107 13 13 0 1 0 8 0 ipqe 40 426 0 426 13 13 0 1 0 8 0 inpcb 392 17089 0 17049 265 251 14 22 0 8 8 ip6q 72 17 0 17 1 1 0 1 0 8 0 ip6af 40 34 0 34 1 1 0 1 0 8 0 nd6 136 150 0 120 4 2 2 2 0 8 0 kcovpl 48 40 0 32 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1948 0 1479 33 3 30 30 0 8 0 art_table 32 1949 0 1479 4 0 4 4 0 8 0 art_node 16 496 0 389 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 4 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 4123 0 4113 1 0 1 1 0 8 0 shmpl 112 145 0 17 4 0 4 4 0 8 0 dirhash 1024 195 0 178 3 0 3 3 0 8 0 dino2pl 256 27639 0 26103 97 0 97 97 0 8 0 ffsino 272 27639 0 26103 103 0 103 103 0 8 0 nchpl 144 52823 0 51086 66 0 66 66 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 181240 0 181239 17 16 1 2 0 8 0 percpumem 16 78 0 32 1 0 1 1 0 8 0 kstatmem 264 86 0 64 2 0 2 2 0 8 0 scxspl 216 174285 0 174285 76 75 1 8 1 8 1 plimitpl 152 3084 0 3060 32 30 2 2 0 8 1 sigapl 424 19528 0 19472 7 0 7 7 0 8 0 futexpl 64 153291 0 153282 3 2 1 1 0 8 0 knotepl 120 676 0 0 10 3 7 10 0 8 0 kqueuepl 216 5543 0 5534 89 88 1 12 0 8 0 pipepl 320 4718 0 4689 126 123 3 13 0 8 0 fdescpl 496 19509 0 19472 7 2 5 6 0 8 0 filepl 152 126929 0 126671 205 186 19 22 0 8 8 lockfpl 104 3520 0 3518 5 4 1 2 0 8 0 lockfspl 48 985 0 983 1 0 1 1 0 8 0 sessionpl 144 55 0 39 1 0 1 1 0 8 0 pgrppl 48 239 0 223 1 0 1 1 0 8 0 ucredpl 104 21411 0 21393 1 0 1 1 0 8 0 zombiepl 144 19472 0 19472 1 0 1 1 0 8 1 processpl 1136 19528 0 19472 6 1 5 5 0 8 0 procpl 680 54525 0 54441 9 1 8 9 0 8 0 sosppl 168 356 0 354 22 21 1 1 0 8 0 sockpl 584 36958 0 36905 299 286 13 23 0 8 8 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 18 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 41 0 0 3 0 3 3 0 8 0 mcl4k 4096 84 0 0 6 2 4 6 0 8 0 mcl2k2 2112 25 0 0 2 0 2 2 0 8 0 mcl2k 2048 485 0 0 34 18 16 33 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 3666 0 0 216 0 216 216 0 8 0 bufpl 280 39375 0 33113 448 0 448 448 0 8 0 anonpl 24 2050705 0 2038394 141 41 100 106 0 186 0 amapchunkpl 152 605755 0 604776 126 85 41 56 0 158 1 amappl16 200 48795 0 48446 175 151 24 35 0 8 0 amappl15 192 61 0 60 1 0 1 1 0 8 0 amappl14 184 284 0 267 3 2 1 2 0 8 0 amappl13 176 33 0 33 5 5 0 1 0 8 0 amappl12 168 20616 0 20575 2 0 2 2 0 8 0 amappl11 160 52 0 40 1 0 1 1 0 8 0 amappl10 152 122 0 102 1 0 1 1 0 8 0 amappl9 144 374 0 373 1 0 1 1 0 8 0 amappl8 136 940 0 788 6 0 6 6 0 8 0 amappl7 128 178 0 161 1 0 1 1 0 8 0 amappl6 120 949 0 924 2 1 1 2 0 8 0 amappl5 112 649 0 637 1 0 1 1 0 8 0 amappl4 104 1337 0 1300 3 1 2 2 0 8 0 amappl3 96 118438 0 118323 25 21 4 4 0 8 1 amappl2 88 20959 0 20867 11 8 3 4 0 8 0 amappl1 80 78134 0 77601 22 9 13 22 0 8 0 amappl 88 190336 0 190045 8 1 7 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 72 147 0 17 3 0 3 3 0 8 0 uaddrrnd 24 19509 0 19472 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 19509 0 19472 1 0 1 1 0 8 0 vmmpekpl 168 147845 0 147779 5 1 4 4 0 8 0 vmmpepl 168 1149851 0 1147198 365 236 129 140 0 357 0 vmsppl 448 19508 0 19472 5 0 5 5 0 8 0 rwobjpl 56 292985 0 285409 121 10 111 111 0 8 0 pdppl 4096 39025 0 38944 727 646 81 91 0 8 0 pvpl 32 44642 0 0 362 1 361 361 0 265 0 pmappl 248 19508 0 19472 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1788 0 1187 18 0 18 18 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: 0x76f0a5e1c020, 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+0x2e sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,6b) at comcnputc+0x1a7 sys/dev/ic/com.c:1270 cnputc(6b) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(6b) at db_putchar+0x3eb sys/ddb/db_output.c:155 kprintf() at kprintf+0x69a db_printf(ffffffff82883bd7) at db_printf+0x89 sys/kern/subr_prf.c:498 db_ktrap(6,0,ffff8000357c5f50) at db_ktrap+0xb5 db_printtrap sys/arch/amd64/amd64/db_interface.c:98 [inline] db_ktrap(6,0,ffff8000357c5f50) at db_ktrap+0xb5 sys/arch/amd64/amd64/db_interface.c:127 kerntrap(ffff8000357c5f50) at kerntrap+0x142 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff8000357c6040) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273 VOP_WRITE(fffffd80763399a8,ffff8000357c60d8,8,fffffd807f7d7410) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 end trace frame: 0xffff8000357c6170, 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+0x2e sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,6b) at comcnputc+0x1a7 sys/dev/ic/com.c:1270 cnputc(6b) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(6b) at db_putchar+0x3eb sys/ddb/db_output.c:155 kprintf() at kprintf+0x69a db_printf(ffffffff82883bd7) at db_printf+0x89 sys/kern/subr_prf.c:498 db_ktrap(6,0,ffff8000357c5f50) at db_ktrap+0xb5 db_printtrap sys/arch/amd64/amd64/db_interface.c:98 [inline] db_ktrap(6,0,ffff8000357c5f50) at db_ktrap+0xb5 sys/arch/amd64/amd64/db_interface.c:127 kerntrap(ffff8000357c5f50) at kerntrap+0x142 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff8000357c6040) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273 VOP_WRITE(fffffd80763399a8,ffff8000357c60d8,8,fffffd807f7d7410) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80763399a8,ffff80002a261400,fe,0,1,f9b4b723abecd686,ffff8000357c6200,fffffd80763399a8,78) at vn_rdwr+0xee sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000357c6200) at ufs_symlink+0x172 sys/ufs/ufs/ufs_vnops.c:1314 VOP_SYMLINK(fffffd806ba61568,ffff8000357c6380,ffff8000357c63b0,ffff8000357c62b0,ffff80002a261400) at VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:426 dosymlinkat(ffff80002a263010,20000100,4,20000c80) at dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809 syscall(ffff8000357c6530) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000357c6530) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8e6b363c610, count: -20