kernel: page fault trap, code=10 Stopped at 0 TID PID UID PRFLAGS PFLAGS CPU COMMAND 512228 8331 73 0x19100010 0 1 syslogd *328352 24406 0 0x14000 0x200 0K reaper 0(0,0,0,ffffffff82d37ff0,0,0) at 0 timeout_run(fffffd805ab85e78) at timeout_run+0xd0 sys/kern/kern_timeout.c:666 softclock_process_kclock_timeout(fffffd805ab85e78,0) at softclock_process_kclock_timeout+0x1cf sys/kern/kern_timeout.c:696 softclock(0) at softclock+0x150 sys/kern/kern_timeout.c:749 softintr_dispatch(0) at softintr_dispatch+0xcd sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x27 Xspllower() at Xspllower+0x1d printf(ffffffff8294702e) at printf+0x88 sys/kern/subr_prf.c:532 uvm_fault_unwire_locked(fffffd806ef97a58,dc16755c000,dc16775b000) at uvm_fault_unwire_locked+0x211 uvm_unmap_kill_entry_withlock(fffffd806ef97a58,fffffd8068ab0578,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1894 uvm_map_teardown(fffffd806ef97a58) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd806ef97a58) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2534 uvmspace_free(fffffd806ef97a58) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 reaper(ffff80002a148f68) at reaper+0x197 sys/kern/kern_exit.c:475 end trace frame: 0x0, count: 3 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: attempt to execute user address 0x0 in supervisor mode ddb{0}> trace 0(0,0,0,ffffffff82d37ff0,0,0) at 0 timeout_run(fffffd805ab85e78) at timeout_run+0xd0 sys/kern/kern_timeout.c:666 softclock_process_kclock_timeout(fffffd805ab85e78,0) at softclock_process_kclock_timeout+0x1cf sys/kern/kern_timeout.c:696 softclock(0) at softclock+0x150 sys/kern/kern_timeout.c:749 softintr_dispatch(0) at softintr_dispatch+0xcd sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x27 Xspllower() at Xspllower+0x1d printf(ffffffff8294702e) at printf+0x88 sys/kern/subr_prf.c:532 uvm_fault_unwire_locked(fffffd806ef97a58,dc16755c000,dc16775b000) at uvm_fault_unwire_locked+0x211 uvm_unmap_kill_entry_withlock(fffffd806ef97a58,fffffd8068ab0578,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1894 uvm_map_teardown(fffffd806ef97a58) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd806ef97a58) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2534 uvmspace_free(fffffd806ef97a58) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 reaper(ffff80002a148f68) at reaper+0x197 sys/kern/kern_exit.c:475 end trace frame: 0x0, count: -12 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a155940 rbx 0 rdx 0 rcx 0xffff80002a148f68 rax 0x9 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8a680b8b5d606d8b r11 0 r12 0 r13 0xffffffff82ce25d0 timeout_spinlock_obj r14 0 r15 0 rip 0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a1558f8 ss 0x10 0 ddb{0}> show proc PROC (reaper) tid=328352 pid=24406 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=86, usrpri=86, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a149488,0xffff80002a1482a8 process=0xffff80002a15b130 user=0xffff80002a150000, vmspace=0xffffffff82e52208 estcpu=36, cpticks=95, pctcpu=24.94, user=0, sys=7, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80542 210968 58438 0 2 0x8000482 syz-executor.5 32695 245372 58438 0 3 0x8000082 wait syz-executor.3 5605 242963 58438 0 3 0x8000082 wait syz-executor.4 1362 145473 58438 0 3 0x8000082 wait syz-executor.1 91262 437649 58438 0 3 0x8000082 wait syz-executor.7 19735 173248 0 0 3 0x14200 acct acct 37721 429711 58438 0 3 0x8000082 wait syz-executor.0 88884 395169 1 0 3 0x18100083 ttyin getty 48946 240563 58438 0 3 0x8000082 wait syz-executor.6 80669 43915 58438 0 3 0x8000082 wait syz-executor.2 70852 88773 0 0 3 0x14200 bored sosplice 58438 491662 37522 0 3 0x1a000082 wait syz-fuzzer 58438 495197 37522 0 3 0x1e000082 thrsleep syz-fuzzer 58438 442606 37522 0 3 0x1e000082 thrsleep syz-fuzzer 58438 25668 37522 0 3 0x1e000082 wait syz-fuzzer 58438 121022 37522 0 3 0x1e000082 thrsleep syz-fuzzer 58438 72381 37522 0 3 0x1e000082 kqread syz-fuzzer 58438 354493 37522 0 3 0x1e000082 wait syz-fuzzer 58438 304711 37522 0 3 0x1e000082 thrsleep syz-fuzzer 58438 438998 37522 0 3 0x1e000082 thrsleep syz-fuzzer 58438 228790 37522 0 3 0x1e000082 wait syz-fuzzer 58438 243367 37522 0 3 0x1e000082 thrsleep syz-fuzzer 58438 8499 37522 0 3 0x1e000082 wait syz-fuzzer 58438 175941 37522 0 3 0x1e000082 wait syz-fuzzer 58438 143735 37522 0 3 0x1e000082 wait syz-fuzzer 58438 287025 37522 0 3 0x1e000082 wait syz-fuzzer 58438 175047 37522 0 3 0x1e000082 thrsleep syz-fuzzer 37522 109078 64054 0 3 0x810008a sigsusp ksh 64054 497897 81466 0 3 0x1800009a kqread sshd 81466 363099 1 0 3 0x18000088 kqread sshd 8331 512228 92891 73 7 0x19100010 syslogd 92891 177274 1 0 3 0x18100082 sbwait syslogd 81171 225902 1 0 3 0x18100080 kqread resolvd 92006 27654 24354 77 3 0x18100092 kqread dhcpleased 67470 334671 24354 77 3 0x18100092 kqread dhcpleased 24354 475576 1 0 3 0x18000080 kqread dhcpleased 46285 403568 0 0 3 0x14200 bored smr 50313 153850 0 0 3 0x14200 pgzero zerothread 98784 215607 0 0 3 0x14200 aiodoned aiodoned 15787 474129 0 0 3 0x14200 syncer update 96989 330877 0 0 3 0x14200 cleaner cleaner *24406 328352 0 0 7 0x14200 reaper 6068 355746 0 0 3 0x14200 pgdaemon pagedaemon 40853 204382 0 0 3 0x14200 bored viomb 46790 116756 0 0 3 0x40014200 acpi0 acpi0 99399 178601 0 0 3 0x40014200 idle1 18480 459850 0 0 3 0x14200 bored softnet3 53210 91240 0 0 3 0x14200 bored softnet2 96230 468508 0 0 3 0x14200 bored softnet1 52899 372416 0 0 3 0x14200 bored softnet0 36233 238696 0 0 3 0x14200 bored systqmp 12010 293593 0 0 3 0x14200 bored systq 17163 367625 0 0 3 0x14200 tmoslp softclockmp 36393 330830 0 0 2 0x40014200 softclock 96681 13895 0 0 3 0x40014200 idle0 1 85150 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: shared mutex timeout r = 0 (0xffffffff82ce25d0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 timeout_run+0xbb sys/kern/kern_timeout.c:662 #2 softclock_process_kclock_timeout+0x1cf sys/kern/kern_timeout.c:696 #3 softclock+0x150 sys/kern/kern_timeout.c:749 #4 softintr_dispatch+0xcd sys/arch/amd64/amd64/softintr.c:90 #5 Xsoftclock+0x27 #6 Xspllower+0x1d #7 printf+0x88 sys/kern/subr_prf.c:532 #8 uvm_fault_unwire_locked+0x211 #9 uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1894 #10 uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #10 uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2534 #11 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 #12 reaper+0x197 sys/kern/kern_exit.c:475 #13 proc_trampoline+0x10 Process 8331 (syslogd) thread 0xffff8000ffffd9b0 (512228) Process 24406 (reaper) thread 0xffff80002a148f68 (328352) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10237 6954K 9523K 166960K 19543 0 pcb 17 12K 12K 166960K 700 0 rtable 188 8K 9K 166960K 2382 0 pf 35 10K 11K 166960K 259 0 ifaddr 41 15K 17K 166960K 316 0 ifgroup 62 2K 2K 166960K 433 0 sysctl 4 1K 5K 166960K 16 0 counters 68 36K 37K 166960K 278 0 ioctlops 0 0K 4K 166960K 1749 0 iov 0 0K 20K 166960K 355 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1441 91K 91K 166960K 5724 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 32K 40K 166960K 117 0 VM map 2 1K 1K 166960K 2 0 sem 21 32K 64K 166960K 293 0 dirhash 12 2K 2K 166960K 123 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 10 33K 81K 166960K 4882 0 sigio 0 0K 0K 166960K 65 0 proc 60 79K 128K 166960K 2067 0 subproc 104 6K 7K 166960K 711 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 731 0 in_multi 71 5K 7K 166960K 798 0 ether_multi 1 0K 0K 166960K 66 0 mrt 1 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 289 1288K 1288K 166960K 289 0 exec 0 0K 1K 166960K 1589 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 320 120K 139K 166960K 43487 0 UVM aobj 229 13K 15K 166960K 242 0 pinsyscall 30 60K 100K 166960K 7311 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 331 0 NDP 13 0K 1K 166960K 227 0 temp 75 6820K 14756K 166960K 160447 0 kqueue 12 18K 28K 166960K 693 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 120 594 0 591 1 0 1 1 0 8 0 rtentry 112 825 0 743 4 0 4 4 0 8 0 unpcb 144 3684 0 3671 15 14 1 4 0 8 0 syncache 336 11 0 11 5 5 0 1 0 8 0 tcpqe 32 2 7 2 2 2 0 1 0 8 0 tcpcb 808 1320 0 1313 23 22 1 5 0 8 0 arp 120 164 0 147 1 0 1 1 0 8 0 inpcb 384 4951 0 4940 39 37 2 9 0 8 0 nd6 136 204 0 183 2 1 1 2 0 8 0 pkpcb 40 28 0 28 10 10 0 1 0 8 0 kcovpl 48 54 0 46 1 0 1 1 0 8 0 ppxss 1168 28 0 28 13 12 1 1 0 8 1 pffrag 232 36 0 34 4 3 1 1 0 482 0 pffrnode 88 35 0 33 4 3 1 1 0 8 0 pffrent 40 438 0 436 4 3 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 401 0 385 1 0 1 1 0 8 0 pfstkey 128 401 0 385 2 0 2 2 0 8 0 pfstate 376 401 0 385 7 3 4 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 5 0 4 5 4 1 3 0 8 0 art_heap4 256 2844 0 2500 41 17 24 30 0 8 0 art_table 32 2849 0 2504 4 0 4 4 0 8 0 art_node 16 817 0 746 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 10 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 272 0 253 1 0 1 1 0 8 0 shmpl 112 239 0 13 7 0 7 7 0 8 0 dirhash 1024 91 0 74 3 0 3 3 0 8 0 dino2pl 256 9356 0 7812 98 0 98 98 0 8 0 ffsino 272 9356 0 7812 104 0 104 104 0 8 0 nchpl 144 16589 0 14839 67 0 67 67 0 8 0 uvmvnodes 80 9217 0 0 189 0 189 189 0 8 0 vnodes 216 9217 0 0 513 0 513 513 0 8 0 namei 1024 60372 0 60372 13 12 1 2 0 8 1 percpumem 16 153 0 105 1 0 1 1 0 8 0 vcpupl 3904 15 0 4 2 0 2 2 0 8 0 vmpool 696 29 0 18 6 5 1 2 0 8 0 kstatmem 264 236 0 210 4 1 3 3 0 8 0 scsiplug 72 14 0 14 8 8 0 1 0 8 0 scxspl 216 125552 0 125552 26 25 1 8 1 8 1 plimitpl 152 871 0 853 1 0 1 1 0 8 0 sigapl 424 5135 0 5086 8 1 7 8 0 8 0 futexpl 64 83125 0 83125 12 11 1 1 0 8 1 knotepl 120 1040 0 0 26 1 25 25 0 8 0 kqueuepl 216 1680 0 1672 8 7 1 5 0 8 0 pipepl 320 799 0 771 4 1 3 3 0 8 0 fdescpl 496 5091 0 5070 7 3 4 5 0 8 0 filepl 152 35573 0 35339 35 24 11 20 0 8 0 lockfpl 104 1554 0 1552 1 0 1 1 0 8 0 lockfspl 48 683 0 681 1 0 1 1 0 8 0 sessionpl 144 73 0 57 1 0 1 1 0 8 0 pgrppl 48 128 0 112 1 0 1 1 0 8 0 ucredpl 104 6603 0 6591 1 0 1 1 0 8 0 zombiepl 144 5094 0 5086 1 0 1 1 0 8 0 processpl 1144 5135 0 5086 5 1 4 5 0 8 0 procpl 656 10252 0 10175 11 4 7 9 0 8 0 srpgc 96 48 0 48 14 14 0 1 0 8 0 sosppl 168 19 0 19 12 12 0 1 0 8 0 sockpl 664 9306 0 9280 58 54 4 14 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 16 0 0 2 0 2 2 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 430 0 0 38 10 28 38 0 8 0 mtagpl 96 31 0 0 1 0 1 1 0 8 0 mbufpl 256 796 0 0 27 0 27 27 0 8 0 bufpl 280 23326 0 13615 694 0 694 694 0 8 0 anonpl 24 814028 0 803087 247 177 70 124 0 186 0 amapchunkpl 152 145929 0 144931 123 81 42 50 0 158 3 amappl16 200 18126 0 17977 92 80 12 33 0 8 0 amappl15 192 14 0 14 5 5 0 1 0 8 0 amappl14 184 307 0 296 2 1 1 2 0 8 0 amappl13 176 16 0 16 1 1 0 1 0 8 0 amappl12 168 6483 0 6451 2 0 2 2 0 8 0 amappl11 160 49 0 37 1 0 1 1 0 8 0 amappl10 152 117 0 107 1 0 1 1 0 8 0 amappl9 144 174 0 173 1 0 1 1 0 8 0 amappl8 136 309 0 270 2 0 2 2 0 8 0 amappl7 128 57 0 43 1 0 1 1 0 8 0 amappl6 120 994 0 976 2 1 1 2 0 8 0 amappl5 112 350 0 338 1 0 1 1 0 8 0 amappl4 104 901 0 867 2 0 2 2 0 8 0 amappl3 96 26919 0 26819 3 0 3 3 0 8 0 amappl2 88 5680 0 5606 4 2 2 4 0 8 0 amappl1 80 27252 0 26756 23 11 12 22 0 8 0 amappl 88 42191 0 41975 6 0 6 6 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 72 241 0 13 5 0 5 5 0 8 0 uaddrrnd 24 5120 0 5081 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5120 0 5081 1 0 1 1 0 8 0 vmmpekpl 168 37091 0 37034 4 0 4 4 0 8 0 vmmpepl 168 327370 0 325380 222 128 94 115 0 357 1 vmsppl 440 5119 0 5080 6 1 5 5 0 8 0 rwobjpl 56 89682 0 79111 169 19 150 150 0 8 1 pdppl 4096 10247 0 10171 307 229 78 80 0 8 2 pvpl 32 47176 0 0 381 0 381 381 0 265 0 pmappl 248 5119 0 5080 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 686 0 313 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace 0(0,0,0,ffffffff82d37ff0,0,0) at 0 timeout_run(fffffd805ab85e78) at timeout_run+0xd0 sys/kern/kern_timeout.c:666 softclock_process_kclock_timeout(fffffd805ab85e78,0) at softclock_process_kclock_timeout+0x1cf sys/kern/kern_timeout.c:696 softclock(0) at softclock+0x150 sys/kern/kern_timeout.c:749 softintr_dispatch(0) at softintr_dispatch+0xcd sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x27 Xspllower() at Xspllower+0x1d printf(ffffffff8294702e) at printf+0x88 sys/kern/subr_prf.c:532 uvm_fault_unwire_locked(fffffd806ef97a58,dc16755c000,dc16775b000) at uvm_fault_unwire_locked+0x211 uvm_unmap_kill_entry_withlock(fffffd806ef97a58,fffffd8068ab0578,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1894 uvm_map_teardown(fffffd806ef97a58) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd806ef97a58) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2534 uvmspace_free(fffffd806ef97a58) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 reaper(ffff80002a148f68) at reaper+0x197 sys/kern/kern_exit.c:475 end trace frame: 0x0, count: -12 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff82e59e60) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e59e60) at __mp_lock+0x133 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82e59e60,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x491 sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19a sys/kern/kern_synch.c:417 vwaitforio(fffffd806e507c20,0,ffffffff82910c70,ffffffffffffffff) at vwaitforio+0xa9 sys/kern/vfs_subr.c:1922 ffs_fsync(ffff80002a1da7a0) at ffs_fsync+0x26d sys/ufs/ffs/ffs_vnops.c:482 VOP_FSYNC(fffffd806e507c20,fffffd807f7d3888,1,ffff8000ffffd9b0) at VOP_FSYNC+0xd2 sys/kern/vfs_vops.c:311 sys_fsync(ffff8000ffffd9b0,ffff80002a1da950,ffff80002a1da8a0) at sys_fsync+0x105 sys/kern/vfs_syscalls.c:2931 syscall(ffff80002a1da950) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1da950) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7564eb6794e0, count: 1 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff82e59e60) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e59e60) at __mp_lock+0x133 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82e59e60,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x491 sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19a sys/kern/kern_synch.c:417 vwaitforio(fffffd806e507c20,0,ffffffff82910c70,ffffffffffffffff) at vwaitforio+0xa9 sys/kern/vfs_subr.c:1922 ffs_fsync(ffff80002a1da7a0) at ffs_fsync+0x26d sys/ufs/ffs/ffs_vnops.c:482 VOP_FSYNC(fffffd806e507c20,fffffd807f7d3888,1,ffff8000ffffd9b0) at VOP_FSYNC+0xd2 sys/kern/vfs_vops.c:311 sys_fsync(ffff8000ffffd9b0,ffff80002a1da950,ffff80002a1da8a0) at sys_fsync+0x105 sys/kern/vfs_syscalls.c:2931 syscall(ffff80002a1da950) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1da950) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7564eb6794e0, count: -14