uvm_fault(fffffd806441c5d8,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806441c5d8,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800022efba60,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800022efba60) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e22018,ffff800022efbc28,ffff800022efbc70) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800022efbcf0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022efbcf0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3aeca528c00, count: 243 End of stack trace. Stopped at db_enter+0x18: 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+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff828e4f58,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806441c5d8,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806441c5d8,fffffd80689fe788,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806441c5d8,fffffd80689fe788,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806441c5d8,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806441c5d8,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800022efba60,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800022efba60) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e22018,ffff800022efbc28,ffff800022efbc70) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800022efbcf0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022efbcf0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3aeca528c00, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800022efb4e0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002410a000 rax 0xffff800000ae9380 r8 0xffffffff821bf62f kprintf+0x16f r9 0x1 r10 0x2 r11 0x9b66f8d5bd11d4fd r12 0x1 r13 0xfffffd8069510108 r14 0xffff800020e22018 r15 0x3 rip 0xffffffff81885bb8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800022efb4d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=179778 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ea7d60,0xffffffff8289bb10 process=0xffff800020ed0418 user=0xffff800022ef6000, vmspace=0xfffffd806441c5d8 estcpu=36, cpticks=16, pctcpu=0.0 user=0, sys=16, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85184 373752 69161 0 7 0 syz-executor.0 *85184 179778 69161 0 7 0x4000000 syz-executor.0 67448 296051 0 0 3 0x14280 nfsidl nfsio 63554 198771 0 0 3 0x14280 nfsidl nfsio 38293 294169 0 0 3 0x14280 nfsidl nfsio 17357 27638 0 0 3 0x14280 nfsidl nfsio 67214 463030 0 0 3 0x14280 nfsidl nfsio 92259 508843 0 0 3 0x14280 nfsidl nfsio 46223 310044 0 0 3 0x14280 nfsidl nfsio 41386 18550 0 0 3 0x14280 nfsidl nfsio 62101 142376 0 0 3 0x14280 nfsidl nfsio 58690 494199 0 0 3 0x14280 nfsidl nfsio 40801 339441 0 0 3 0x14280 nfsidl nfsio 21603 128098 0 0 3 0x14280 nfsidl nfsio 40362 518103 0 0 3 0x14280 nfsidl nfsio 69175 199329 0 0 3 0x14280 nfsidl nfsio 82005 115636 0 0 3 0x14280 nfsidl nfsio 15412 355966 0 0 3 0x14280 nfsidl nfsio 18663 97504 0 0 3 0x14280 nfsidl nfsio 44841 258854 0 0 3 0x14280 nfsidl nfsio 40723 441082 0 0 3 0x14280 nfsidl nfsio 7968 430400 0 0 3 0x14280 nfsidl nfsio 64662 414652 0 0 3 0x14200 bored sosplice 69161 68487 22469 0 3 0x82 nanosleep syz-executor.0 39501 370230 22469 0 3 0x82 piperd syz-executor.1 22469 40102 38709 0 3 0x82 thrsleep syz-fuzzer 22469 409110 38709 0 3 0x4000082 nanosleep syz-fuzzer 22469 49094 38709 0 3 0x4000082 thrsleep syz-fuzzer 22469 362557 38709 0 3 0x4000082 thrsleep syz-fuzzer 22469 446311 38709 0 3 0x4000082 thrsleep syz-fuzzer 22469 149028 38709 0 2 0x4000002 syz-fuzzer 22469 3955 38709 0 3 0x4000082 thrsleep syz-fuzzer 22469 164932 38709 0 3 0x4000082 kqread syz-fuzzer 22469 442821 38709 0 3 0x4000082 thrsleep syz-fuzzer 22469 193843 38709 0 3 0x4000082 thrsleep syz-fuzzer 22469 270014 38709 0 3 0x4000082 thrsleep syz-fuzzer 38709 369094 55194 0 3 0x10008a pause ksh 55194 209743 89215 0 3 0x92 select sshd 13744 323918 1 0 3 0x100083 ttyin getty 89215 220128 1 0 3 0x80 select sshd 21925 355178 46159 74 3 0x100092 bpf pflogd 46159 248609 1 0 3 0x80 netio pflogd 26293 475395 97599 73 3 0x100090 kqread syslogd 97599 9449 1 0 3 0x100082 netio syslogd 90303 287229 1 77 3 0x100090 poll dhclient 31507 356389 1 0 3 0x80 poll dhclient 48766 502266 0 0 3 0x14200 bored smr 6096 413198 0 0 2 0x14200 zerothread 1433 163417 0 0 3 0x14200 aiodoned aiodoned 85861 267406 0 0 3 0x14200 syncer update 97130 190782 0 0 3 0x14200 cleaner cleaner 19901 429664 0 0 3 0x14200 reaper reaper 87808 447755 0 0 3 0x14200 pgdaemon pagedaemon 28316 56719 0 0 3 0x14200 bored crynlk 97151 390465 0 0 3 0x14200 bored crypto 27748 206365 0 0 3 0x40014200 acpi0 acpi0 6826 404588 0 0 3 0x40014200 idle1 55521 43773 0 0 3 0x14200 bored softnet 50777 304873 0 0 3 0x14200 bored systqmp 72552 321716 0 0 3 0x14200 bored systq 10782 176883 0 0 3 0x40014200 bored softclock 20869 445665 0 0 3 0x40014200 idle0 1 499495 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 85184 (syz-executor.0) thread 0xffff800020e22018 (179778) exclusive rwlock vmmaplk r = 0 (0xfffffd806441c5f0) #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 (0xffffffff8270caf8) #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 (0xffffffff8289dd48) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9549 6430K 6946K 78643K 12308 0 pcb 13 8K 8K 78643K 85 0 rtable 95 5K 6K 78643K 381 0 ifaddr 104 19K 19K 78643K 166 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 2373 0 iov 0 0K 16K 78643K 91 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1740 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 22 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 106 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 1172 0 proc 61 63K 95K 78643K 508 0 subproc 32 2K 2K 78643K 53 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 21 0 in_multi 60 3K 3K 78643K 122 0 ether_multi 1 0K 0K 78643K 13 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 769 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 140 105K 105K 78643K 4253 0 UVM aobj 44 6K 6K 78643K 50 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 46 0 NDP 16 0K 0K 78643K 33 0 temp 151 3865K 3929K 78643K 17620 0 kqueue 3 4K 17K 78643K 1269 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 46 0 44 1 0 1 1 0 8 0 rtentry 112 69 0 37 2 0 2 2 0 8 0 unpcb 120 479 0 469 1 0 1 1 0 8 0 syncache 264 9 0 9 4 4 0 1 0 8 0 tcpqe 32 144 0 144 1 1 0 1 0 8 0 tcpcb 544 176 0 172 2 1 1 2 0 8 0 inpcb 296 488 0 480 6 5 1 2 0 8 0 nd6 48 12 0 10 1 0 1 1 0 8 0 pkpcb 40 7 0 7 3 3 0 1 0 8 0 ppxss 1128 2 0 2 2 2 0 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 90 0 90 1 1 0 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 pfrktable 1344 5 0 1 1 0 1 1 0 8 0 pftag 88 2 0 2 1 1 0 1 0 8 0 pfstitem 24 25 0 23 1 0 1 1 0 8 0 pfstkey 112 25 0 23 1 0 1 1 0 8 0 pfstate 328 25 0 23 2 1 1 2 0 8 0 pfrule 1360 46 0 20 4 1 3 3 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 321 0 195 15 4 11 13 0 8 0 art_table 32 323 0 195 2 0 2 2 0 8 0 art_node 16 68 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 46 0 24 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 102 0 92 1 0 1 1 0 8 0 shmpl 112 48 0 6 2 0 2 2 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 2778 0 1374 89 0 89 89 0 8 0 ffsino 272 2778 0 1374 94 0 94 94 0 8 0 nchpl 144 4368 0 2771 60 0 60 60 0 8 0 uvmvnodes 72 3261 0 0 60 0 60 60 0 8 0 vnodes 208 3261 0 0 172 0 172 172 0 8 0 namei 1024 13621 0 13621 5 4 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 10 0 0 2 0 2 2 0 8 0 vmpool 560 14 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 scxspl 192 13390 0 13390 12 11 1 7 0 8 1 plimitpl 152 47 0 39 1 0 1 1 0 8 0 sigapl 424 1405 0 1353 6 0 6 6 0 8 0 futexpl 56 19484 0 19484 5 4 1 1 0 8 1 knotepl 112 1374 0 1355 1 0 1 1 0 8 0 kqueuepl 144 816 0 812 1 0 1 1 0 8 0 pipelkpl 48 194 0 184 1 0 1 1 0 8 0 pipepl 120 388 0 369 1 0 1 1 0 8 0 fdescpl 496 1369 0 1353 3 0 3 3 0 8 0 filepl 152 7485 0 7384 6 2 4 5 0 8 0 lockfpl 104 166 0 165 1 0 1 1 0 8 0 lockfspl 48 60 0 59 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 588 0 579 1 0 1 1 0 8 0 zombiepl 144 1353 0 1353 2 1 1 1 0 8 1 processpl 984 1405 0 1353 9 2 7 7 0 8 0 procpl 624 3447 0 3384 7 2 5 6 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 8 0 8 4 4 0 1 0 8 0 sockpl 400 1022 0 1002 8 6 2 4 0 8 0 mcl64k 65536 13 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 230 0 0 28 0 28 28 0 8 0 mtagpl 96 170 0 0 5 0 5 5 0 8 0 mbufpl 256 603 0 0 32 0 32 32 0 8 0 bufpl 280 5255 0 133 366 0 366 366 0 8 0 anonpl 16 113838 0 97921 70 5 65 67 0 124 0 amapchunkpl 152 7849 0 7699 34 27 7 20 0 158 0 amappl16 192 5879 0 5028 46 3 43 45 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 114 0 109 1 0 1 1 0 8 0 amappl13 168 38 0 34 1 0 1 1 0 8 0 amappl12 160 438 0 433 1 0 1 1 0 8 0 amappl11 152 68 0 53 1 0 1 1 0 8 0 amappl10 144 617 0 613 1 0 1 1 0 8 0 amappl9 136 388 0 386 1 0 1 1 0 8 0 amappl8 128 392 0 351 2 0 2 2 0 8 0 amappl7 120 727 0 714 1 0 1 1 0 8 0 amappl6 112 28 0 22 1 0 1 1 0 8 0 amappl5 104 1700 0 1684 1 0 1 1 0 8 0 amappl4 96 517 0 487 1 0 1 1 0 8 0 amappl3 88 215 0 208 1 0 1 1 0 8 0 amappl2 80 9939 0 9871 2 0 2 2 0 8 0 amappl1 72 37258 0 36818 23 13 10 18 0 8 0 amappl 80 3675 0 3628 3 1 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 49 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1383 0 1357 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1383 0 1357 1 0 1 1 0 8 0 vmmpekpl 168 12357 0 12313 4 1 3 3 0 8 0 vmmpepl 168 167752 0 165707 144 54 90 117 0 357 0 vmsppl 368 1382 0 1357 4 1 3 3 0 8 0 pdppl 4096 2773 0 2724 9 2 7 7 0 8 0 pvpl 32 362695 0 344036 177 25 152 160 0 265 1 pmappl 232 1382 0 1357 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 311 0 24 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8273dff0) 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 __mp_lock(ffffffff8289db40) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8289db40) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800020ec7260,ffff80000065ad80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff8289db40) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8289db40) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffdcd10, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> 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(ffffffff828e4f58,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806441c5d8,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806441c5d8,fffffd80689fe788,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806441c5d8,fffffd80689fe788,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806441c5d8,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806441c5d8,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800022efba60,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800022efba60) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e22018,ffff800022efbc28,ffff800022efbc70) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800022efbcf0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022efbcf0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3aeca528c00, count: -14