panic: mutex 0xfffffd806c80af30 not hWeAldRN iInNG m:t xS_PlLe aNve OTSta rLtOWEiRnEgD O Ns tacSkY SCAtLrL ac7e5. .5.3 6870912 EXIT 0 a Stopped at savectx+0xae: movl $0,%gs:0x680 TID PID UID PRFLAGS PFLAGS CPU COMMAND *209821 90829 0 0 0x4000000 0 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x2cca4ecd790, count: 14 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 *cpu1: mutex 0xfffffd806c80af30 not held in mtx_leave ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x2cca4ecd790, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002cfc06d0 rbx 0 rdx 0xffff8000012b3040 rcx 0xffff800033792038 rax 0x3a r8 0xffff80002cfc0600 r9 0x1 r10 0x1bf43e4ab65575a3 r11 0xf447ac8bf194df2 r12 0 r13 0 r14 0xffff800033792038 r15 0 rip 0xffffffff826903ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002cfc0650 ss 0x10 savectx+0xae: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=209821 pid=90829 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800033792ce0,0xffff8000337922d0 process=0xffff800029fe96b0 user=0xffff80002cfbb000, vmspace=0xfffffd806c80ae18 estcpu=33, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98117 130600 53066 0 2 0 syz-executor 98117 60843 53066 0 3 0x4000080 fsleep syz-executor 98117 40429 53066 0 3 0x4000080 fsleep syz-executor 90829 196062 8884 0 2 0 syz-executor 90829 125898 8884 0 3 0x4000020 syz-executor *90829 209821 8884 0 7 0x4000000 syz-executor 2364 133621 53572 0 2 0 syz-executor 2364 384533 53572 0 3 0x4000080 fsleep syz-executor 54674 367956 70624 0 2 0 syz-executor 54674 237906 70624 0 3 0x4000080 fsleep syz-executor 70177 149805 62776 60929 2 0x10 syz-executor 70177 193106 62776 60929 3 0x4000090 fsleep syz-executor 70177 402606 62776 60929 3 0x4000090 fsleep syz-executor 70624 264675 80720 0 2 0x482 syz-executor 4660 518759 80720 0 2 0x82 syz-executor 53572 187114 80720 0 2 0x482 syz-executor 62957 223978 80720 0 2 0x482 syz-executor 8884 47770 80720 0 2 0x482 syz-executor 53066 19180 80720 0 3 0x82 nanoslp syz-executor 62776 496925 80720 0 3 0x82 nanoslp syz-executor 68584 239402 80720 0 2 0x2 syz-executor 9746 15123 0 0 3 0x14200 bored sosplice 25015 378144 0 0 3 0x14280 nfsidl nfsio 58667 52585 0 0 3 0x14280 nfsidl nfsio 3509 431688 0 0 3 0x14280 nfsidl nfsio 89004 135326 0 0 3 0x14280 nfsidl nfsio 8872 195237 0 0 3 0x14280 nfsidl nfsio 40522 301919 0 0 3 0x14280 nfsidl nfsio 24293 224268 0 0 3 0x14280 nfsidl nfsio 75457 119006 0 0 3 0x14280 nfsidl nfsio 75726 274809 0 0 3 0x14280 nfsidl nfsio 6413 133455 0 0 3 0x14280 nfsidl nfsio 80646 28899 0 0 3 0x14280 nfsidl nfsio 15471 120540 0 0 3 0x14280 nfsidl nfsio 94707 497443 0 0 3 0x14280 nfsidl nfsio 24018 417865 0 0 3 0x14280 nfsidl nfsio 33095 218655 0 0 3 0x14280 nfsidl nfsio 11196 193742 0 0 3 0x14280 nfsidl nfsio 6632 155726 0 0 3 0x14280 nfsidl nfsio 97843 310672 0 0 3 0x14280 nfsidl nfsio 98087 254678 0 0 3 0x14280 nfsidl nfsio 73741 213380 0 0 3 0x14280 nfsidl nfsio 80720 157090 11524 0 2 0x82 syz-executor 11524 211835 80018 0 3 0x10008a sigsusp ksh 80018 288214 83956 0 3 0x98 kqread sshd-session 83956 498838 53135 0 3 0x92 kqread sshd-session 33169 152314 1 0 3 0x100083 ttyin getty 53135 454757 1 0 3 0x88 kqread sshd 38498 266390 26991 74 3 0x1100092 bpf pflogd 26991 335774 1 0 3 0x80 sbwait pflogd 36823 1249 42576 73 3 0x1100090 kqread syslogd 42576 121401 1 0 3 0x100082 sbwait syslogd 850 337012 1 0 3 0x100080 kqread resolvd 36614 499432 95793 77 3 0x100092 kqread dhcpleased 30575 230705 95793 77 3 0x100092 kqread dhcpleased 95793 248332 1 0 3 0x80 kqread dhcpleased 76798 94772 0 0 3 0x14200 bored smr 69317 362599 0 0 2 0x14200 zerothread 81955 347317 0 0 3 0x14200 aiodoned aiodoned 66408 243775 0 0 3 0x14200 syncer update 73568 202074 0 0 3 0x14200 cleaner cleaner 5400 444531 0 0 3 0x14200 reaper reaper 77587 127259 0 0 3 0x14200 pgdaemon pagedaemon 85142 428273 0 0 3 0x14200 bored viomb 19337 85940 0 0 3 0x40014200 acpi0 acpi0 35243 52673 0 0 3 0x40014200 idle1 7899 116777 0 0 3 0x14200 bored softnet3 58680 383010 0 0 3 0x14200 bored softnet2 56635 496963 0 0 3 0x14200 bored softnet1 22888 346961 0 0 3 0x14200 bored softnet0 25290 83393 0 0 3 0x14200 bored systqmp 76958 256403 0 0 3 0x14200 bored systq 14036 213768 0 0 3 0x14200 tmoslp softclockmp 58724 485579 0 0 3 0x40014200 tmoslp softclock 30784 35923 0 0 3 0x40014200 idle0 1 488823 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd8069dcf4f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_page_remove+0xcd rcr3 machine/cpufunc.h:139 [inline] #3 pmap_page_remove+0xcd pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_page_remove+0xcd sys/arch/amd64/amd64/pmap.c:1974 #4 uvm_map_clean+0x630 sys/uvm/uvm_map.c:4534 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff834f86a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvm_map_clean+0x602 sys/uvm/uvm_map.c:4528 #4 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 CPU 1: exclusive mutex &map->flags_lock r = 0 (0xfffffd806c80af70) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x6b sys/uvm/uvm_map.c:5244 #4 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 #5 uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #5 uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 #6 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #8 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #9 alltraps_kern_meltdown+0x7b #10 _copyin+0x57 #11 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 Process 90829 (syz-executor) thread 0xffff800033792038 (209821) Process 68584 (syz-executor) thread 0xffff80002a06ccc0 (239402) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 11113K 11308K 166960K 11764 0 pcb 17 12K 12K 166960K 119 0 rtable 209 7K 8K 166960K 1193 0 pf 36 18K 25K 166960K 141 0 ifaddr 40 7K 8K 166960K 159 0 ifgroup 55 2K 2K 166960K 193 0 sysctl 4 1K 2K 166960K 6 0 counters 64 36K 36K 166960K 136 0 ioctlops 0 0K 4K 166960K 1569 0 iov 0 0K 16K 166960K 24 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1363 86K 86K 166960K 2100 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 14 5K 6K 166960K 29 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 15 53K 97K 166960K 2746 0 sigio 0 0K 0K 166960K 11 0 proc 72 91K 128K 166960K 1264 0 subproc 104 6K 6K 166960K 417 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 77 0 in_multi 85 6K 7K 166960K 392 0 ether_multi 1 0K 0K 166960K 8 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 702 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 224 72K 90K 166960K 23334 0 UVM aobj 11 2K 4K 166960K 13 0 pinsyscall 40 80K 116K 166960K 4444 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 29 0 NDP 12 0K 2K 166960K 112 0 temp 43 6815K 6884K 166960K 37642 0 kqueue 13 20K 26K 166960K 94 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 120 161 0 158 1 0 1 1 0 8 0 rtentry 112 394 0 301 4 0 4 4 0 8 0 unpcb 144 295 0 278 1 0 1 1 0 8 0 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 150 0 146 1 0 1 1 0 8 0 arp 120 70 0 51 1 0 1 1 0 8 0 inpcb 336 646 0 638 3 1 2 2 0 8 1 nd6 136 103 0 82 2 1 1 2 0 8 0 pkpcb 40 8 0 8 2 2 0 1 0 8 0 kcovpl 48 32 0 24 1 0 1 1 0 8 0 ppxss 1168 4 0 4 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 14 0 12 1 0 1 1 0 482 0 pffrnode 88 12 0 10 1 0 1 1 0 8 0 pffrent 40 26 0 24 1 0 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 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 126 0 68 1 0 1 1 0 8 0 pfstkey 128 128 0 70 3 0 3 3 0 8 0 pfstate 376 127 0 69 7 0 7 7 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1581 0 1202 32 3 29 31 0 8 1 art_table 32 1583 0 1202 4 0 4 4 0 8 0 art_node 16 392 0 310 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 23 0 11 1 0 1 1 0 8 0 shmpl 112 10 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 4360 0 2815 97 0 97 97 0 8 0 ffsino 272 4360 0 2815 104 0 104 104 0 8 0 nchpl 144 6966 0 5256 64 0 64 64 0 8 0 uvmvnodes 80 5003 0 0 103 0 103 103 0 8 0 vnodes 216 5003 0 0 278 0 278 278 0 8 0 namei 1024 19390 0 19390 6 5 1 2 0 8 1 percpumem 16 82 0 36 1 0 1 1 0 8 0 kstatmem 264 96 0 72 2 0 2 2 0 8 0 scxspl 216 31483 0 31483 10 9 1 8 1 8 1 plimitpl 152 133 0 113 1 0 1 1 0 8 0 sigapl 424 3019 0 2949 11 2 9 9 0 8 0 futexpl 64 8122 0 8116 4 3 1 1 0 8 0 knotepl 120 357 0 0 10 0 10 10 0 8 0 kqueuepl 216 126 0 116 1 0 1 1 0 8 0 pipepl 320 205 0 178 3 0 3 3 0 8 0 fdescpl 496 2979 0 2950 9 4 5 6 0 8 0 filepl 152 6632 0 6383 11 0 11 11 0 8 1 lockfpl 104 201 0 198 1 0 1 1 0 8 0 lockfspl 48 87 0 84 1 0 1 1 0 8 0 sessionpl 144 47 0 38 1 0 1 1 0 8 0 pgrppl 48 83 0 66 1 0 1 1 0 8 0 ucredpl 104 666 0 650 1 0 1 1 0 8 0 zombiepl 144 2951 0 2949 3 2 1 1 0 8 0 processpl 1160 3019 0 2949 7 1 6 6 0 8 0 procpl 648 5345 0 5267 8 0 8 8 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sockpl 664 1115 0 1088 4 1 3 4 0 8 0 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 16 0 0 2 0 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 22 0 0 3 0 3 3 0 8 0 mcl4k 4096 144 0 0 18 0 18 18 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 301 0 0 17 0 17 17 0 8 0 bufpl 280 8777 0 2603 442 0 442 442 0 8 0 anonpl 24 360442 0 355783 54 6 48 51 0 185 14 amapchunkpl 152 75735 0 75271 37 9 28 32 0 158 6 amappl16 200 6342 0 6251 36 28 8 14 0 8 1 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 167 0 155 1 0 1 1 0 8 0 amappl13 176 16 0 14 1 0 1 1 0 8 0 amappl12 168 4007 0 3978 4 2 2 3 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 23 0 23 1 1 0 1 0 8 0 amappl9 144 163 0 163 1 1 0 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 156 0 144 1 0 1 1 0 8 0 amappl6 120 408 0 406 1 0 1 1 0 8 0 amappl5 112 246 0 235 1 0 1 1 0 8 0 amappl4 104 403 0 384 1 0 1 1 0 8 0 amappl3 96 16565 0 16460 5 1 4 4 0 8 0 amappl2 88 1020 0 953 2 0 2 2 0 8 0 amappl1 80 16994 0 16431 18 4 14 16 0 8 0 amappl 88 22755 0 22594 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 0 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 12 0 2 1 0 1 1 0 8 0 uaddrrnd 24 2979 0 2950 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2979 0 2950 1 0 1 1 0 8 0 vmmpekpl 168 15092 0 15042 3 0 3 3 0 8 0 vmmpepl 168 172447 0 170616 119 31 88 93 0 357 3 vmsppl 448 2978 0 2950 6 2 4 5 0 8 0 rwobjpl 56 46465 0 40464 91 5 86 86 0 8 0 pdppl 4096 5965 0 5900 157 86 71 87 0 8 6 pvpl 32 29020 0 0 236 2 234 234 0 265 0 pmappl 248 2978 0 2950 5 2 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 469 0 103 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x2cca4ecd790, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc db_search_symbol(ffffffff827c7250,0,ffff80002cfb96a0) at db_search_symbol+0x52 sys/ddb/db_sym.c:106 db_stack_trace_print(ffff80002cfb9770,1,100,ffffffff830310f8,ffffffff827c7870) at db_stack_trace_print+0x2fe sys/arch/amd64/amd64/db_trace.c:147 db_stack_dump() at db_stack_dump+0xa5 sys/ddb/db_output.c:243 panic(ffffffff830777cb) at panic+0x1d0 sys/kern/subr_prf.c:229 mtx_leave(fffffd806c80af30) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c80ae48,fffffd806c80af30,4,ffffffff832017c0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c80ae18,ffffffff8303c0ac,6f3) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvmfault_lookup(ffff80002cfb9b50,1) at uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 uvm_fault_check(ffff80002cfb9b50,ffff80002cfb9b88,ffff80002cfb9bb0) at uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] uvm_fault_check(ffff80002cfb9b50,ffff80002cfb9b88,ffff80002cfb9bb0) at uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 uvm_fault(fffffd806c80ae18,20830000,0,1) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 end trace frame: 0xffff80002cfb9c90, count: 0 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc db_search_symbol(ffffffff827c7250,0,ffff80002cfb96a0) at db_search_symbol+0x52 sys/ddb/db_sym.c:106 db_stack_trace_print(ffff80002cfb9770,1,100,ffffffff830310f8,ffffffff827c7870) at db_stack_trace_print+0x2fe sys/arch/amd64/amd64/db_trace.c:147 db_stack_dump() at db_stack_dump+0xa5 sys/ddb/db_output.c:243 panic(ffffffff830777cb) at panic+0x1d0 sys/kern/subr_prf.c:229 mtx_leave(fffffd806c80af30) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c80ae48,fffffd806c80af30,4,ffffffff832017c0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c80ae18,ffffffff8303c0ac,6f3) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvmfault_lookup(ffff80002cfb9b50,1) at uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 uvm_fault_check(ffff80002cfb9b50,ffff80002cfb9b88,ffff80002cfb9bb0) at uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] uvm_fault_check(ffff80002cfb9b50,ffff80002cfb9b88,ffff80002cfb9bb0) at uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 uvm_fault(fffffd806c80ae18,20830000,0,1) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80002cfb9cf0,20830000) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80002cfb9cf0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff80002cfba140) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002cfba140) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2cd3fa9f680, count: -20