*cpu0: uvm_fault(0xfffffd806602f210, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x79c15fd45ed0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff8000373e84c0 rbx 0 rdx 0 rcx 0xffff80003c4a7788 rax 0x2a r8 0xffff8000373e83f0 r9 0 r10 0xbc9bf403cfe8c85e r11 0xdbd57bd636cd89 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff8202d4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff8000373e8440 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=256974 pid=31446 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=0xffff80003c4a6a90,0xffffffff839c75b8 process=0xffff80003c4b4030 user=0xffff8000373e3000, vmspace=0xfffffd806602f5e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *31446 256974 81693 0 7 0 syz-executor 86199 195317 69858 0 2 0 syz-executor 33816 206552 98256 60929 2 0x10 syz-executor 33816 484729 98256 60929 3 0x4000090 fsleep syz-executor 32389 146871 88810 0 2 0 syz-executor 32389 49146 88810 0 3 0x4000080 fsleep syz-executor 32389 133726 88810 0 3 0x4000080 fsleep syz-executor 32389 48409 88810 0 3 0x4000080 fsleep syz-executor 54669 380263 29473 0 3 0x82 nanoslp syz-executor 16712 92781 0 0 3 0x14200 bored sosplice 81693 443780 29473 0 3 0x82 nanoslp syz-executor 98256 429529 29473 0 2 0xc82 syz-executor 69858 282696 29473 0 2 0xc82 syz-executor 20629 463231 29473 0 2 0x2 syz-executor 25716 296651 29473 0 2 0xc82 syz-executor 88810 338873 29473 0 3 0x82 nanoslp syz-executor 40668 139642 29473 0 3 0x82 nanoslp syz-executor 29473 487154 79331 0 3 0x82 kqread syz-executor 79331 118450 94363 0 3 0x10008a sigsusp ksh 94363 446498 9039 0 3 0x98 kqread sshd-session 9039 54247 37348 0 3 0x92 kqread sshd-session 52233 393616 1 0 3 0x100083 ttyopn getty 37348 194573 1 0 3 0x88 kqread sshd 28526 404919 45578 74 3 0x1100092 bpf pflogd 45578 8701 1 0 3 0x80 sbwait pflogd 98065 455998 73715 73 3 0x1100090 kqread syslogd 73715 370105 1 0 3 0x100082 sbwait syslogd 72050 169196 1 0 3 0x100080 kqread resolvd 4595 355568 86382 77 3 0x100092 kqread dhcpleased 50646 389308 86382 77 3 0x100092 kqread dhcpleased 86382 297917 1 0 3 0x80 kqread dhcpleased 99319 257255 0 0 3 0x14200 bored smr 94060 462334 0 0 2 0x14200 zerothread 87394 37051 0 0 3 0x14200 aiodoned aiodoned 82192 412359 0 0 3 0x14200 syncer update 98312 347096 0 0 3 0x14200 cleaner cleaner 37080 275652 0 0 3 0x14200 reaper reaper 93170 488288 0 0 3 0x14200 pgdaemon pagedaemon 29929 217334 0 0 3 0x14200 bored viomb 5298 295760 0 0 3 0x40014200 acpi0 acpi0 99059 205675 0 0 3 0x40014200 idle1 23197 221844 0 0 3 0x14200 bored softnet1 99365 93152 0 0 3 0x14200 bored softnet0 59141 390276 0 0 3 0x14200 bored systqmp 19573 358534 0 0 3 0x14200 bored systq 2697 378833 0 0 3 0x14200 tmoslp softclockmp 7809 518181 0 0 3 0x40014200 tmoslp softclock 30717 198980 0 0 3 0x40014200 idle0 1 509582 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff838cc318) #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 uvm_fault_upper+0x3e2 sys/uvm/uvm_fault.c:1167 #4 uvm_fault+0x198 sys/uvm/uvm_fault.c:641 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #7 recall_trap+0x8 Process 31446 (syz-executor) thread 0xffff80003c4a7788 (256974) exclusive rwlock amaplk r = 0 (0xfffffd806c83f398) #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 uvm_fault_check+0x8bb sys/uvm/uvm_fault.c:840 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806602f6e0) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1902 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:699 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #7 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff838cc318) #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 uvm_fault_upper+0x3e2 sys/uvm/uvm_fault.c:1167 #4 uvm_fault+0x198 sys/uvm/uvm_fault.c:641 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603 #7 recall_trap+0x8 Process 20629 (syz-executor) thread 0xffff80002a271a08 (463231) exclusive rrwlock inode r = 0 (0xfffffd806e46f6a0) #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 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c0c7698) #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10266 11363K 11384K 166960K 13244 0 pcb 17 14K 16K 166960K 307 0 rtable 182 7K 9K 166960K 386 0 pf 42 19K 67487K 166960K 164 0 ifaddr 37 6K 8K 166960K 99 0 ifgroup 57 2K 2K 166960K 169 0 sysctl 4 1K 9K 166960K 14 0 counters 70 37K 37K 166960K 246 0 ioctlops 0 0K 4K 166960K 1757 0 iov 0 0K 16K 166960K 53 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1594 100K 101K 166960K 2401 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 33 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 949 0 sigio 0 0K 0K 166960K 12 0 proc 73 115K 164K 166960K 631 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 108 0 in_multi 68 5K 7K 166960K 146 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 550 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 1K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 232 175K 184K 166960K 10208 0 UVM aobj 86 3K 3K 166960K 90 0 pinsyscall 42 84K 107K 166960K 2073 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 42 0 NDP 13 0K 1K 166960K 70 0 temp 68 8649K 8716K 166960K 36223 0 kqueue 14 22K 29K 166960K 163 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 94 0 91 1 0 1 1 0 8 0 rtentry 176 128 0 54 5 0 5 5 0 8 0 unpcb 144 608 0 590 5 4 1 4 0 8 0 syncache 336 8 0 8 4 3 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 301 0 295 8 7 1 7 0 8 0 arp 136 15 0 3 1 0 1 1 0 8 0 inpcb 328 972 0 963 15 13 2 10 0 8 0 nd6 152 22 0 8 1 0 1 1 0 8 0 pkpcb 40 11 0 11 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 75 0 74 4 3 1 1 0 8 0 pppxif 1504 4 0 4 2 1 1 1 0 8 1 pfstscr 40 36 0 34 1 0 1 1 0 8 0 pffrag 232 6 0 1 1 0 1 1 0 482 0 pffrnode 88 6 0 1 1 0 1 1 0 8 0 pffrent 40 12 0 5 2 1 1 1 0 8 0 pfosfp 40 1430 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfanchor 1288 4 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 73 0 26 1 0 1 1 0 8 0 pfstkey 128 107 0 57 2 0 2 2 0 8 0 pfstate 384 102 0 57 5 0 5 5 0 8 0 pfrule 1344 28 0 23 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 612 0 313 29 5 24 29 0 8 1 art_table 40 614 0 313 5 0 5 5 0 8 0 art_node 32 128 0 66 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 7 3 2 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 30 0 20 1 0 1 1 0 8 0 shmpl 112 87 0 4 3 0 3 3 0 8 0 dirhash 1024 32 0 15 3 0 3 3 0 8 0 dino2pl 256 3059 0 1549 95 0 95 95 0 8 0 ffsino 296 3059 0 1549 117 0 117 117 0 8 0 nchpl 144 4365 0 2670 64 0 64 64 0 8 0 rtmask 32 5 0 5 2 2 0 1 0 8 0 uvmvnodes 80 3891 0 0 80 0 80 80 0 8 0 vnodes 216 3891 0 0 217 0 217 217 0 8 0 namei 1024 14983 0 14983 4 3 1 2 0 8 1 percpumem 16 138 0 88 1 0 1 1 0 8 0 kstatmem 264 106 0 78 5 2 3 3 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 28951 0 28951 11 9 2 8 1 8 2 plimitpl 152 317 0 300 1 0 1 1 0 8 0 sigapl 424 1269 0 1221 9 2 7 8 0 8 0 knotepl 120 557 0 0 17 0 17 17 0 8 0 kqueuepl 224 359 0 349 3 2 1 2 0 8 0 pipepl 344 178 0 150 3 0 3 3 0 8 0 fdescpl 528 1231 0 1200 3 0 3 3 0 8 0 filepl 160 7570 0 7341 26 14 12 19 0 8 1 lockfpl 104 707 0 705 3 2 1 2 0 8 0 lockfspl 48 335 0 333 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 45 0 28 1 0 1 1 0 8 0 ucredpl 104 1201 0 1185 1 0 1 1 0 8 0 zombiepl 144 1374 0 1371 1 0 1 1 0 8 0 processpl 1232 1269 0 1221 7 2 5 6 0 8 0 procpl 664 2695 0 2643 8 2 6 8 0 8 0 sosppl 168 4 0 4 3 2 1 1 0 8 1 sockpl 752 1738 0 1708 29 22 7 17 0 8 3 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 1 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 223 0 0 14 0 14 14 0 8 0 bufpl 280 11980 0 5837 440 0 440 440 0 8 0 anonpl 32 10462 0 0 86 1 85 85 0 246 0 amapchunkpl 152 34082 0 33627 53 23 30 33 0 158 10 amappl16 200 5244 0 5208 46 31 15 25 0 8 5 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 119 0 107 1 0 1 1 0 8 0 amappl13 176 13 0 13 3 3 0 1 0 8 0 amappl12 168 1911 0 1882 3 1 2 2 0 8 0 amappl11 160 54 0 39 1 0 1 1 0 8 0 amappl10 152 12 0 12 2 2 0 1 0 8 0 amappl9 144 245 0 244 2 1 1 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 136 0 124 1 0 1 1 0 8 0 amappl6 120 192 0 189 1 0 1 1 0 8 0 amappl5 112 129 0 119 1 0 1 1 0 8 0 amappl4 104 325 0 305 1 0 1 1 0 8 0 amappl3 96 5937 0 5848 4 1 3 3 0 8 0 amappl2 88 1488 0 1412 2 0 2 2 0 8 0 amappl1 80 12695 0 12098 18 3 15 15 0 8 0 amappl 88 9363 0 9205 5 0 5 5 0 92 0 dma65536 65536 2 0 2 2 1 1 1 0 8 1 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 89 0 4 2 0 2 2 0 8 0 uaddrrnd 24 1231 0 1200 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1231 0 1200 1 0 1 1 0 8 0 vmmpekpl 168 11459 0 11415 3 0 3 3 0 8 0 vmmpepl 168 84759 0 82775 122 18 104 108 0 357 8 vmsppl 488 1230 0 1200 6 1 5 5 0 8 0 rwobjpl 80 29074 0 24170 102 1 101 101 0 8 0 pdppl 4096 2470 0 2400 108 36 72 86 0 8 2 pvpl 32 18067 0 0 146 0 146 146 0 265 0 pmappl 256 1230 0 1200 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 298 0 58 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83777ff0) 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_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:662 comcnputc(800,2d) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,2d) at comcnputc+0xd0 sys/dev/ic/com.c:1259 cnputc(2d) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83311ead) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833d5055) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c447340,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c447340) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:489 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 end trace frame: 0xffff80003c447470, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83777ff0) 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_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:662 comcnputc(800,2d) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,2d) at comcnputc+0xd0 sys/dev/ic/com.c:1259 cnputc(2d) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29a5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83311ead) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833d5055) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c447340,0) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c447340) at kerntrap+0x198 sys/arch/amd64/amd64/trap.c:489 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(21e5f,81,2000,ffff80003c422a88) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c422a88) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c4474f0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805a639c08,81,fffffd80097fb548,ffff80003c422a88) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80699f7220,ffff80003c422a88) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80699f7220,ffff80003c422a88) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80699f7220,ffff80003c422a88) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80699f7220,ffff80003c422a88) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c422a88) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c422a88,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c422a88,ffff80003c447860,ffff80003c4477b0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c447860) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c447860) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e96e3aaa790, count: -25 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: 0x79c15fd45ed0, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x79c15fd45ed0, count: -1