uvm_fault(fffffd8064427b90,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd8064427b90,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f59420,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f59420) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec64f8,ffff800021f595e8,ffff800021f59630) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f596b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f596b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc74f342ace0, count: 243 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff8264f6d8,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd8064427b90,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd8064427b90,fffffd8068ce4c88,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd8064427b90,fffffd8068ce4c88,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd8064427b90,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd8064427b90,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f59420,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f59420) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec64f8,ffff800021f595e8,ffff800021f59630) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f596b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f596b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc74f342ace0, count: -14 ddb{0}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800021f58ea0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002319a000 rax 0xffff8000009d75c0 r8 0xffffffff814a3bdf kprintf+0x16f r9 0x1 r10 0x2 r11 0x1f0a6ff3f61ebd6a r12 0x1 r13 0xfffffd8068ce9308 r14 0xffff800020ec64f8 r15 0x3 rip 0xffffffff81bf1358 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021f58e90 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=86942 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec6eb8,0xffffffff82655490 process=0xffff800020e92ba8 user=0xffff800021f54000, vmspace=0xfffffd8064427b90 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16031 320229 52504 0 2 0 syz-executor.1 *16031 86942 52504 0 7 0x4000000 syz-executor.1 39305 311007 89741 0 7 0x480 syz-executor.0 39305 123116 89741 0 3 0x4000080 netio syz-executor.0 39305 82483 89741 0 3 0x4000080 fsleep syz-executor.0 89741 436191 80701 0 2 0x482 syz-executor.0 56695 248780 0 0 3 0x14200 bored sosplice 52504 43687 80701 0 2 0x482 syz-executor.1 80701 15010 84101 0 3 0x82 thrsleep syz-fuzzer 80701 48136 84101 0 2 0x4000482 syz-fuzzer 80701 51998 84101 0 3 0x4000082 thrsleep syz-fuzzer 80701 404831 84101 0 3 0x4000082 thrsleep syz-fuzzer 80701 340896 84101 0 2 0x4000482 syz-fuzzer 80701 197183 84101 0 3 0x4000082 kqread syz-fuzzer 80701 440377 84101 0 3 0x4000082 thrsleep syz-fuzzer 80701 341957 84101 0 3 0x4000082 thrsleep syz-fuzzer 80701 39107 84101 0 3 0x4000082 thrsleep syz-fuzzer 80701 192662 84101 0 3 0x4000082 thrsleep syz-fuzzer 84101 445535 63659 0 3 0x10008a pause ksh 63659 10373 33147 0 3 0x92 select sshd 80413 63571 1 0 2 0x100083 getty 33147 267420 1 0 3 0x80 select sshd 41438 446858 98370 74 3 0x100092 bpf pflogd 98370 293304 1 0 3 0x80 netio pflogd 66514 38505 80813 73 2 0x100090 syslogd 80813 451865 1 0 3 0x100082 netio syslogd 4288 2793 1 77 3 0x100090 poll dhclient 90376 439090 1 0 3 0x80 poll dhclient 52463 301191 0 0 3 0x14200 bored smr 85123 22793 0 0 3 0x14200 pgzero zerothread 7613 63829 0 0 3 0x14200 aiodoned aiodoned 50606 8211 0 0 3 0x14200 syncer update 58050 222211 0 0 3 0x14200 cleaner cleaner 43681 293288 0 0 3 0x14200 reaper reaper 75702 355076 0 0 3 0x14200 pgdaemon pagedaemon 80320 199289 0 0 3 0x14200 bored crynlk 8104 437789 0 0 3 0x14200 bored crypto 15139 505839 0 0 3 0x40014200 acpi0 acpi0 25397 255799 0 0 3 0x40014200 idle1 96190 440507 0 0 3 0x14200 bored softnet 73718 191675 0 0 3 0x14200 bored systqmp 94567 494208 0 0 3 0x14200 bored systq 67429 354261 0 0 2 0x40014200 softclock 73099 159957 0 0 3 0x40014200 idle0 1 427177 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 16031 (syz-executor.1) thread 0xffff800020ec64f8 (86942) exclusive rwlock vmmaplk r = 0 (0xfffffd8064427ba8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5445 #3 uvmfault_lookup+0xbe sys/uvm/uvm_fault.c:1442 #4 uvm_fault+0xbbd uvmfault_amapcopy sys/uvm/uvm_fault.c:232 [inline] #4 uvm_fault+0xbbd sys/uvm/uvm_fault.c:559 #5 pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 #6 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #7 alltraps_kern_meltdown+0x7b #8 copyin+0x4b #9 sys_connect+0x9b sys/kern/uipc_syscalls.c:360 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff82507458) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sys_connect+0x6a sys/kern/uipc_syscalls.c:355 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82691818) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9534 6418K 6742K 78643K 11400 0 pcb 13 8K 8K 78643K 132 0 rtable 97 4K 4K 78643K 419 0 ifaddr 93 18K 18K 78643K 179 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 71 0 ioctlops 0 0K 4K 78643K 1517 0 iov 0 0K 12K 78643K 81 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1510 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 139 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 659 0 sigio 0 0K 0K 78643K 6 0 proc 61 63K 95K 78643K 587 0 subproc 32 2K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 51 0 in_multi 87 4K 4K 78643K 169 0 ether_multi 1 0K 0K 78643K 18 0 mrt 0 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 309 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 142 128K 128K 78643K 3218 0 UVM aobj 17 4K 4K 78643K 17 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 120 0 NDP 14 0K 0K 78643K 37 0 temp 125 3039K 3134K 78643K 17540 0 kqueue 3 4K 14K 78643K 103 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 11 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 45 0 43 1 0 1 1 0 8 0 rtentry 112 76 0 39 2 0 2 2 0 8 0 unpcb 120 375 0 362 1 0 1 1 0 8 0 syncache 264 11 0 11 3 3 0 1 0 8 0 tcpqe 32 73 0 73 1 1 0 1 0 8 0 tcpcb 544 239 0 235 1 0 1 1 0 8 0 inpcb 280 949 0 940 2 1 1 2 0 8 0 rttmr 72 4 0 4 2 2 0 1 0 8 0 nd6 48 13 0 10 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pffrag 232 7 0 5 2 1 1 1 0 482 0 pffrnode 88 7 0 5 2 1 1 1 0 8 0 pffrent 40 63 0 61 3 2 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 73 0 21 1 0 1 1 0 8 0 pfstkey 112 75 0 23 2 0 2 2 0 8 0 pfstate 328 72 0 20 5 0 5 5 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 303 0 152 12 1 11 12 0 8 0 art_table 32 304 0 152 2 0 2 2 0 8 0 art_node 16 75 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 5 2 1 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 137 0 127 1 0 1 1 0 8 0 shmpl 112 15 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2269 0 866 89 0 89 89 0 8 0 ffsino 272 2269 0 866 95 0 95 95 0 8 0 nchpl 144 3376 0 1791 60 0 60 60 0 8 0 uvmvnodes 72 2526 0 0 46 0 46 46 0 8 0 vnodes 208 2526 0 0 133 0 133 133 0 8 0 namei 1024 9512 0 9512 2 1 1 1 0 8 1 percpumem 16 46 0 14 1 0 1 1 0 8 0 vcpupl 1984 11 0 0 2 0 2 2 0 8 0 vmpool 560 13 0 2 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 9503 0 9503 9 8 1 7 0 8 1 plimitpl 152 49 0 41 1 0 1 1 0 8 0 sigapl 424 869 0 836 4 0 4 4 0 8 0 futexpl 56 10534 0 10533 1 0 1 1 0 8 0 knotepl 112 442 0 423 1 0 1 1 0 8 0 kqueuepl 144 739 0 731 1 0 1 1 0 8 0 pipelkpl 48 169 0 159 1 0 1 1 0 8 0 pipepl 120 338 0 319 2 1 1 2 0 8 0 fdescpl 496 853 0 836 3 0 3 3 0 8 0 filepl 152 5229 0 5124 7 2 5 6 0 8 0 lockfpl 104 120 0 119 1 0 1 1 0 8 0 lockfspl 48 49 0 48 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 25 0 14 1 0 1 1 0 8 0 ucredpl 96 489 0 480 1 0 1 1 0 8 0 zombiepl 144 840 0 840 2 1 1 1 0 8 1 processpl 984 869 0 836 5 0 5 5 0 8 0 procpl 624 2316 0 2271 4 0 4 4 0 8 0 sosppl 128 31 0 31 2 2 0 1 0 8 0 sockpl 400 1376 0 1352 5 2 3 4 0 8 0 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 157 0 0 19 0 19 19 0 8 0 mtagpl 80 36 0 0 1 0 1 1 0 8 0 mbufpl 256 276 0 0 17 0 17 17 0 8 0 bufpl 280 4548 0 134 316 0 316 316 0 8 0 anonpl 16 106348 0 91694 79 19 60 76 0 124 0 amapchunkpl 152 5117 0 4980 16 10 6 11 0 158 0 amappl16 192 4305 0 3485 62 20 42 52 0 8 0 amappl15 184 292 0 288 1 0 1 1 0 8 0 amappl14 176 55 0 51 1 0 1 1 0 8 0 amappl13 168 44 0 41 1 0 1 1 0 8 0 amappl12 160 138 0 136 2 1 1 1 0 8 0 amappl11 152 360 0 342 1 0 1 1 0 8 0 amappl10 144 23 0 16 1 0 1 1 0 8 0 amappl9 136 394 0 393 1 0 1 1 0 8 0 amappl8 128 383 0 352 2 0 2 2 0 8 0 amappl7 120 143 0 127 1 0 1 1 0 8 0 amappl6 112 28 0 22 1 0 1 1 0 8 0 amappl5 104 872 0 853 1 0 1 1 0 8 0 amappl4 96 517 0 489 1 0 1 1 0 8 0 amappl3 88 164 0 158 1 0 1 1 0 8 0 amappl2 80 6030 0 5948 2 0 2 2 0 8 0 amappl1 72 29058 0 28596 23 13 10 18 0 8 0 amappl 80 2614 0 2559 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 16 0 0 1 0 1 1 0 8 0 uaddrrnd 24 866 0 838 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 866 0 838 1 0 1 1 0 8 0 vmmpekpl 168 10315 0 10279 2 0 2 2 0 8 0 vmmpepl 168 111718 0 109611 134 41 93 117 0 357 1 vmsppl 368 865 0 838 3 0 3 3 0 8 0 pdppl 4096 1740 0 1687 7 0 7 7 0 8 0 pvpl 32 303127 0 285246 189 40 149 182 0 265 3 pmappl 232 865 0 838 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 268 0 7 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff8264f6d8,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd8064427b90,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd8064427b90,fffffd8068ce4c88,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd8064427b90,fffffd8068ce4c88,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd8064427b90,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd8064427b90,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f59420,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f59420) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec64f8,ffff800021f595e8,ffff800021f59630) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f596b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f596b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc74f342ace0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020e00ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_cmp4(be48e,be48f) at __sanitizer_cov_trace_cmp4+0x3d kd_curproc sys/dev/kcov.c:411 [inline] __sanitizer_cov_trace_cmp4(be48e,be48f) at __sanitizer_cov_trace_cmp4+0x3d trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(be48e,be48f) at __sanitizer_cov_trace_cmp4+0x3d sys/dev/kcov.c:135 __mp_lock(ffffffff82691610) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82691610) at __mp_lock+0x139 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82691610,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800023fa5400,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800023fa5400,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800023fa5400,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff826116dc,120,ffffffff821ef4d2,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020ec7608,ffff800023fa5530,ffff800023fa5580) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800023fa5600) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023fa5600) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc72a0, count: -13