witness: lock_object uninitialized: 0xffff80003c475950 Starting stack trace... witness_checkorder(ffff80003c475950,9,0) at witness_checkorder+0x1a7 witness_debugger sys/kern/subr_witness.c:2573 [inline] witness_checkorder(ffff80003c475950,9,0) at witness_checkorder+0x1a7 sys/kern/subr_witness.c:783 mtx_enter(ffff80003c475940) at mtx_enter+0x4a sys/kern/kern_lock.c:260 filt_procdetach(fffffd805cddb438) at filt_procdetach+0x4d sys/kern/kern_event.c:432 knote_remove(ffff8000fffee7e0,fffffd806eeebd20,fffffd806eeebdc0,35,1) at knote_remove+0x2db sys/kern/kern_event.c:-1 kqueue_purge(ffff8000fffee7e0,fffffd806eeebd20) at kqueue_purge+0x137 sys/kern/kern_event.c:1890 kqueue_close(fffffd8067c7d180,ffff8000fffee7e0) at kqueue_close+0x48 sys/kern/kern_event.c:1934 fdrop(fffffd8067c7d180,ffff8000fffee7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8067c7d180,ffff8000fffee7e0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffee7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffee7e0,0,0,3) at exit1+0x576 sys/kern/kern_exit.c:215 proc_suspend_check_locked(ffff8000fffee7e0,0) at proc_suspend_check_locked+0x2fd sys/kern/kern_sig.c:2235 userret(ffff8000fffee7e0) at userret+0x8c proc_suspend_check sys/kern/kern_sig.c:-1 [inline] userret(ffff8000fffee7e0) at userret+0x8c sys/kern/kern_sig.c:2194 syscall(ffff80003c46f810) at syscall+0x9cd mi_syscall_return sys/sys/syscall_mi.h:203 [inline] syscall(ffff80003c46f810) at syscall+0x9cd sys/arch/amd64/amd64/trap.c:769 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73f45f9ab7e0, count: 243 End of stack trace. Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffff80003c475950,9,0) at witness_checkorder+0x1ac sys/kern/subr_witness.c:-1 mtx_enter(ffff80003c475940) at mtx_enter+0x4a sys/kern/kern_lock.c:260 filt_procdetach(fffffd805cddb438) at filt_procdetach+0x4d sys/kern/kern_event.c:432 knote_remove(ffff8000fffee7e0,fffffd806eeebd20,fffffd806eeebdc0,35,1) at knote_remove+0x2db sys/kern/kern_event.c:-1 kqueue_purge(ffff8000fffee7e0,fffffd806eeebd20) at kqueue_purge+0x137 sys/kern/kern_event.c:1890 kqueue_close(fffffd8067c7d180,ffff8000fffee7e0) at kqueue_close+0x48 sys/kern/kern_event.c:1934 fdrop(fffffd8067c7d180,ffff8000fffee7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8067c7d180,ffff8000fffee7e0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffee7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffee7e0,0,0,3) at exit1+0x576 sys/kern/kern_exit.c:215 proc_suspend_check_locked(ffff8000fffee7e0,0) at proc_suspend_check_locked+0x2fd sys/kern/kern_sig.c:2235 userret(ffff8000fffee7e0) at userret+0x8c proc_suspend_check sys/kern/kern_sig.c:-1 [inline] userret(ffff8000fffee7e0) at userret+0x8c sys/kern/kern_sig.c:2194 syscall(ffff80003c46f810) at syscall+0x9cd mi_syscall_return sys/sys/syscall_mi.h:203 [inline] syscall(ffff80003c46f810) at syscall+0x9cd sys/arch/amd64/amd64/trap.c:769 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73f45f9ab7e0, count: -15 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c46f270 rbx 0 rdx 0 rcx 0xffff8000fffee7e0 rax 0xffff8000299edff0 r8 0xffff80003c46f210 r9 0x8080808080808080 r10 0x9f90e06d9d0ae000 r11 0x25a7fb9c7b600ca7 r12 0xffffffff834730fe user_filtops+0x6 r13 0x9 r14 0xffff80003c475950 r15 0x3 rip 0xffffffff823471f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c46f260 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=325267 pid=79579 tcnt=0 stat=onproc flags process=1008 proc=82000 runpri=32, usrpri=81, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000fffeefa8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c450038,0xffff8000fffee558 process=0xffff80002a3d1358 user=0xffff80003c46a000, vmspace=0xfffffd8072f4d9a8 estcpu=31, cpticks=20, pctcpu=0.2, user=0, sys=16, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40543 387741 43344 0 3 0x80 fsleep syz-executor 40543 163694 43344 0 3 0x4000080 ttyopn syz-executor 82097 225734 36147 0 3 0x80 fsleep syz-executor 82097 245392 36147 0 3 0x4000080 bell syz-executor 82272 419087 86167 0 3 0x80 fsleep syz-executor 82272 239918 86167 0 3 0x4000080 ttyin syz-executor 50640 493973 83324 0 3 0x80 fsleep syz-executor 50640 300533 83324 0 3 0x4000080 semwait syz-executor 42341 368450 46117 0 3 0x80 fsleep syz-executor 42341 454078 46117 0 3 0x4000080 kqsel syz-executor 31984 209624 93650 0 3 0x80 fsleep syz-executor 31984 126852 93650 0 3 0x4000080 ttyin syz-executor 53197 217080 45009 0 3 0x82 nanoslp syz-executor 49043 392542 1 0 3 0x100083 ttyin getty 61044 16360 0 0 3 0x14200 bored sosplice 36147 317089 45009 0 3 0x82 nanoslp syz-executor 86167 127311 45009 0 3 0x82 nanoslp syz-executor 65530 359356 45009 0 2 0x2 syz-executor 83324 366458 45009 0 3 0x82 nanoslp syz-executor 46117 60454 45009 0 3 0x82 nanoslp syz-executor 93650 227627 45009 0 3 0x82 nanoslp syz-executor 43344 120749 45009 0 3 0x82 nanoslp syz-executor 45009 417329 74960 0 3 0x82 kqread syz-executor 74960 512064 13134 0 3 0x10008a sigsusp ksh 13134 11958 15096 0 3 0x98 kqread sshd-session 15096 249751 10347 0 3 0x92 kqread sshd-session 10347 341851 1 0 3 0x88 kqread sshd 34344 343336 82583 74 3 0x1100092 bpf pflogd 82583 358106 1 0 3 0x80 sbwait pflogd 23315 112004 68192 73 3 0x1100090 kqread syslogd 68192 164481 1 0 3 0x100082 sbwait syslogd 92061 234524 1 0 3 0x100080 kqread resolvd 33230 394560 25656 77 3 0x100092 kqread dhcpleased 93814 235762 25656 77 3 0x100092 kqread dhcpleased 25656 219234 1 0 3 0x80 kqread dhcpleased 26365 167986 0 0 3 0x14200 bored smr 58817 73796 0 0 3 0x14200 pgzero zerothread 95005 280954 0 0 3 0x14200 aiodoned aiodoned 686 493105 0 0 3 0x14200 syncer update 8057 196773 0 0 3 0x14200 cleaner cleaner 56902 434730 0 0 3 0x14200 reaper reaper 13060 313853 0 0 3 0x14200 pgdaemon pagedaemon 6930 257660 0 0 3 0x14200 bored viomb 94760 485647 0 0 3 0x40014200 acpi0 acpi0 41344 490946 0 0 3 0x40014200 idle1 27387 425229 0 0 3 0x14200 bored softnet1 96713 395985 0 0 2 0x14200 softnet0 32285 487780 0 0 3 0x14200 bored systqmp 90358 24878 0 0 3 0x14200 bored systq 74383 124754 0 0 3 0x14200 tmoslp softclockmp 9318 84990 0 0 3 0x40014200 tmoslp softclock 97144 493220 0 0 3 0x40014200 idle0 1 202339 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 31984 (syz-executor) thread 0xffff8000383fca88 (126852) exclusive rrwlock inode r = 0 (0xfffffd806e089810) #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 spec_open+0x2f2 sys/kern/spec_vnops.c:151 #6 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138 #7 vn_open+0x6a0 sys/kern/vfs_vnops.c:177 #8 vndioctl+0xc42 sys/dev/vnd.c:458 #9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #10 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #11 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #12 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 11136K 11306K 166960K 11676 0 pcb 21 13K 14K 166960K 159 0 rtable 156 8K 11K 166960K 398 0 pf 38 18K 67485K 166960K 158 0 ifaddr 35 5K 7K 166960K 85 0 ifgroup 59 2K 2K 166960K 143 0 sysctl 4 1K 9K 166960K 24 0 counters 70 37K 37K 166960K 144 0 ioctlops 0 0K 4K 166960K 1624 0 iov 0 0K 28K 166960K 69 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1436 90K 91K 166960K 2050 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 18 10K 20K 166960K 37 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 887 0 sigio 0 0K 0K 166960K 22 0 proc 72 115K 164K 166960K 618 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 248 0 in_multi 66 4K 7K 166960K 143 0 ether_multi 1 0K 0K 166960K 12 0 mrt 2 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 584 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 229 159K 168K 166960K 9735 0 UVM aobj 22 2K 2K 166960K 24 0 pinsyscall 42 84K 102K 166960K 2005 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 32 0 NDP 13 0K 1K 166960K 56 0 temp 78 8656K 8728K 166960K 33775 0 kqueue 17 26K 34K 166960K 188 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 120 137 0 134 3 2 1 3 0 8 0 rtentry 176 122 0 66 5 0 5 5 0 8 0 unpcb 144 534 0 517 7 6 1 6 0 8 0 syncache 336 6 0 6 2 2 0 1 0 8 0 tcpcb 736 189 0 185 2 1 1 2 0 8 0 arp 136 14 0 6 1 0 1 1 0 8 0 inpcb 328 834 0 821 8 6 2 7 0 8 0 nd6 152 20 0 10 1 0 1 1 0 8 0 pkpcb 40 10 0 10 3 3 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 24 0 24 3 3 0 1 0 8 0 pppxif 1504 4 0 4 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 13 0 4 1 0 1 1 0 482 0 pffrnode 88 11 0 2 1 0 1 1 0 8 0 pffrent 40 29 0 19 1 0 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 pfrktable 1344 14 0 14 2 2 0 1 0 8 0 pfanchor 1288 3 0 2 1 0 1 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfstitem 24 82 0 22 1 0 1 1 0 8 0 pfstkey 128 84 0 24 2 0 2 2 0 8 0 pfstate 384 83 0 23 6 0 6 6 0 8 0 pfrule 1344 28 0 23 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 600 0 297 29 7 22 28 0 8 0 art_table 40 602 0 297 5 0 5 5 0 8 0 art_node 32 122 0 74 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 29 0 13 1 0 1 1 0 8 0 shmpl 112 21 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 3003 0 1495 95 0 95 95 0 8 0 ffsino 296 3003 0 1495 117 0 117 117 0 8 0 nchpl 144 4291 0 2592 64 0 64 64 0 8 0 rtmask 32 4 0 4 3 3 0 1 0 8 0 vnodes 216 3455 0 0 192 0 192 192 0 8 0 namei 1024 14045 0 14045 6 5 1 3 0 8 1 percpumem 16 87 0 37 1 0 1 1 0 8 0 pfiaddrpl 120 3 0 3 1 1 0 1 0 8 0 kstatmem 264 82 0 50 5 2 3 3 0 8 0 scsiplug 72 4 0 4 4 4 0 1 0 8 0 scxspl 216 29563 0 29563 18 17 1 8 1 8 1 plimitpl 152 297 0 278 1 0 1 1 0 8 0 sigapl 424 1211 0 1162 8 1 7 8 0 8 0 knotepl 120 541 0 0 17 0 17 17 0 8 0 kqueuepl 224 330 0 315 4 2 2 3 0 8 0 pipepl 344 184 0 157 3 0 3 3 0 8 0 fdescpl 528 1168 0 1137 3 0 3 3 0 8 0 filepl 160 6792 0 6564 23 13 10 15 0 8 0 lockfpl 104 283 0 281 1 0 1 1 0 8 0 lockfspl 48 117 0 115 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 49 0 32 1 0 1 1 0 8 0 ucredpl 104 1175 0 1161 1 0 1 1 0 8 0 zombiepl 144 1299 0 1297 3 2 1 1 0 8 0 processpl 1232 1211 0 1162 6 2 4 6 0 8 0 procpl 664 2469 0 2414 8 2 6 8 0 8 0 sosppl 168 7 0 7 3 3 0 1 0 8 0 sockpl 752 1537 0 1503 25 21 4 17 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 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 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 132 0 0 17 0 17 17 0 8 0 mcl2k 2048 29 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 332 0 0 18 0 18 18 0 8 0 bufpl 280 13026 0 6883 440 1 439 440 0 8 0 anonpl 32 11822 0 0 96 0 96 96 0 246 0 amapchunkpl 152 32136 0 31670 41 19 22 26 0 158 0 amappl16 200 5286 0 5224 66 53 13 28 0 8 0 amappl15 192 8 0 8 2 2 0 1 0 8 0 amappl14 184 118 0 106 1 0 1 1 0 8 0 amappl13 176 8 0 8 2 2 0 1 0 8 0 amappl12 168 1825 0 1794 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 267 0 267 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 108 0 95 1 0 1 1 0 8 0 amappl6 120 188 0 185 1 0 1 1 0 8 0 amappl5 112 128 0 118 1 0 1 1 0 8 0 amappl4 104 308 0 288 1 0 1 1 0 8 0 amappl3 96 5561 0 5468 3 0 3 3 0 8 0 amappl2 88 1414 0 1332 2 0 2 2 0 8 0 amappl1 80 11743 0 11148 14 0 14 14 0 8 0 amappl 88 8916 0 8759 5 0 5 5 0 92 0 uvmvnodes 80 3455 0 0 71 0 71 71 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 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 128 254 0 254 2 2 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 23 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1168 0 1137 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1168 0 1137 1 0 1 1 0 8 0 vmmpekpl 168 10889 0 10843 4 1 3 3 0 8 0 vmmpepl 168 79885 0 77884 143 42 101 110 0 357 0 vmsppl 488 1167 0 1136 6 2 4 5 0 8 0 rwobjpl 80 27511 0 23086 103 7 96 96 0 8 0 pdppl 4096 2343 0 2272 99 28 71 85 0 8 0 pvpl 32 20587 0 0 167 0 167 167 0 265 0 pmappl 256 1167 0 1136 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 289 0 46 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83876ff0) 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 __mp_lock(ffffffff83937158) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83937158) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff8000333eba00,ffff80000006ac00) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83937158) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83937158) at __mp_lock+0x192 sys/kern/kern_lock.c:165 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83937158) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83937158) at __mp_lock+0x192 sys/kern/kern_lock.c:165 exit1(ffff8000383fd4e8,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff8000383fd4e8,ffff8000333ebe10,ffff8000333ebd60) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000333ebe10) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000333ebe10) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x716503ce1d10, count: -15 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffff80003c475950,9,0) at witness_checkorder+0x1ac sys/kern/subr_witness.c:-1 mtx_enter(ffff80003c475940) at mtx_enter+0x4a sys/kern/kern_lock.c:260 filt_procdetach(fffffd805cddb438) at filt_procdetach+0x4d sys/kern/kern_event.c:432 knote_remove(ffff8000fffee7e0,fffffd806eeebd20,fffffd806eeebdc0,35,1) at knote_remove+0x2db sys/kern/kern_event.c:-1 kqueue_purge(ffff8000fffee7e0,fffffd806eeebd20) at kqueue_purge+0x137 sys/kern/kern_event.c:1890 kqueue_close(fffffd8067c7d180,ffff8000fffee7e0) at kqueue_close+0x48 sys/kern/kern_event.c:1934 fdrop(fffffd8067c7d180,ffff8000fffee7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8067c7d180,ffff8000fffee7e0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffee7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffee7e0,0,0,3) at exit1+0x576 sys/kern/kern_exit.c:215 proc_suspend_check_locked(ffff8000fffee7e0,0) at proc_suspend_check_locked+0x2fd sys/kern/kern_sig.c:2235 userret(ffff8000fffee7e0) at userret+0x8c proc_suspend_check sys/kern/kern_sig.c:-1 [inline] userret(ffff8000fffee7e0) at userret+0x8c sys/kern/kern_sig.c:2194 syscall(ffff80003c46f810) at syscall+0x9cd mi_syscall_return sys/sys/syscall_mi.h:203 [inline] syscall(ffff80003c46f810) at syscall+0x9cd sys/arch/amd64/amd64/trap.c:769 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73f45f9ab7e0, count: -15