uvm_fault(fffffd806e95a178,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e95a178,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023fc7ac0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023fc7ac0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e93128,ffff800023fc7c88,ffff800023fc7cd0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023fc7d50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023fc7d50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x117176d0920, 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(ffffffff826aba68,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806e95a178,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806e95a178,fffffd8007e52d48,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806e95a178,fffffd8007e52d48,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806e95a178,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e95a178,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023fc7ac0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023fc7ac0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e93128,ffff800023fc7c88,ffff800023fc7cd0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023fc7d50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023fc7d50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x117176d0920, count: -14 ddb{0}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800023fc7540 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800021f6e000 rax 0xffff8000009d8a40 r8 0xffffffff8212b2ff kprintf+0x16f r9 0x1 r10 0x2 r11 0xd725f58f74e5df6 r12 0x1 r13 0xfffffd8066de8800 r14 0xffff800020e93128 r15 0x3 rip 0xffffffff81cb79c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800023fc7530 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=281366 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e92288,0xffffffff826aa8a0 process=0xffff800020ec7740 user=0xffff800023fc2000, vmspace=0xfffffd806e95a178 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 57294 149125 5581 0 2 0 syz-executor.1 *57294 281366 5581 0 7 0x4000000 syz-executor.1 28393 347945 0 0 3 0x14200 bored sosplice 5581 43551 929 0 2 0x482 syz-executor.1 11480 191819 929 0 2 0x482 syz-executor.0 929 383947 14710 0 3 0x82 thrsleep syz-fuzzer 929 250816 14710 0 2 0x4000482 syz-fuzzer 929 332169 14710 0 3 0x4000082 thrsleep syz-fuzzer 929 137373 14710 0 3 0x4000082 thrsleep syz-fuzzer 929 135098 14710 0 3 0x4000082 thrsleep syz-fuzzer 929 264678 14710 0 3 0x4000082 thrsleep syz-fuzzer 929 193053 14710 0 3 0x4000082 kqread syz-fuzzer 929 441032 14710 0 3 0x4000082 thrsleep syz-fuzzer 929 138524 14710 0 3 0x4000082 thrsleep syz-fuzzer 929 126490 14710 0 3 0x4000082 thrsleep syz-fuzzer 14710 204208 21485 0 3 0x10008a pause ksh 21485 420439 34552 0 3 0x92 select sshd 17052 222232 1 0 2 0x100083 getty 34552 393277 1 0 3 0x80 select sshd 72215 479167 14168 74 3 0x100092 bpf pflogd 14168 434828 1 0 3 0x80 netio pflogd 99016 370287 41473 73 2 0x100090 syslogd 41473 88204 1 0 3 0x100082 netio syslogd 86808 228251 1 77 3 0x100090 poll dhclient 41151 43386 1 0 3 0x80 poll dhclient 74445 202454 0 0 2 0x14200 smr 25389 57845 0 0 2 0x14200 zerothread 67922 343547 0 0 3 0x14200 aiodoned aiodoned 54378 391994 0 0 3 0x14200 syncer update 32577 496633 0 0 3 0x14200 cleaner cleaner 73813 356173 0 0 7 0x14200 reaper 70474 147704 0 0 3 0x14200 pgdaemon pagedaemon 62444 322910 0 0 3 0x14200 bored crynlk 98547 488187 0 0 3 0x14200 bored crypto 77619 188346 0 0 3 0x40014200 acpi0 acpi0 73026 272087 0 0 3 0x40014200 idle1 27628 25917 0 0 3 0x14200 bored softnet 16447 460803 0 0 3 0x14200 bored systqmp 86518 184308 0 0 3 0x14200 bored systq 44372 352939 0 0 2 0x40014200 softclock 77891 130029 0 0 3 0x40014200 idle0 1 261098 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 57294 (syz-executor.1) thread 0xffff800020e93128 (281366) exclusive rwlock vmmaplk r = 0 (0xfffffd806e95a190) #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 (0xffffffff82502378) #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 (0xffffffff826906e8) #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 9535 6555K 7073K 78643K 11063 0 pcb 13 8K 8K 78643K 46 0 rtable 89 2K 3K 78643K 265 0 ifaddr 76 14K 15K 78643K 112 0 counters 43 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 1483 0 iov 0 0K 32K 78643K 35 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1347 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 28 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 214 0 sigio 0 0K 0K 78643K 11 0 proc 62 63K 95K 78643K 451 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 29 0 in_multi 40 2K 2K 78643K 65 0 ether_multi 1 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 224 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 138 56K 60K 78643K 1660 0 UVM aobj 10 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 44 0 NDP 13 0K 0K 78643K 24 0 temp 100 3034K 3098K 78643K 3021 0 kqueue 3 4K 10K 78643K 18 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 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 47 0 45 1 0 1 1 0 8 0 rtentry 112 47 0 11 2 0 2 2 0 8 0 unpcb 120 113 0 103 1 0 1 1 0 8 0 syncache 264 8 0 8 2 2 0 1 0 8 0 tcpqe 32 445 0 445 1 1 0 1 0 8 0 tcpcb 544 140 0 135 1 0 1 1 0 8 0 inpcb 280 535 0 527 2 1 1 2 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 2 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 pfstitem 24 41 0 7 1 0 1 1 0 8 0 pfstkey 112 41 0 7 1 0 1 1 0 8 0 pfstate 328 41 0 7 3 0 3 3 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 256 250 0 72 12 0 12 12 0 8 0 art_table 32 251 0 72 2 0 2 2 0 8 0 art_node 16 46 0 16 1 0 1 1 0 8 0 semapl 112 26 0 16 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1704 0 298 90 1 89 89 0 8 0 ffsino 272 1704 0 298 96 1 95 95 0 8 0 nchpl 144 2159 0 550 60 0 60 60 0 8 0 uvmvnodes 72 1835 0 0 34 0 34 34 0 8 0 vnodes 208 1835 0 0 97 0 97 97 0 8 0 namei 1024 5740 0 5740 4 3 1 1 0 8 1 percpumem 16 39 0 7 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 0 1 0 1 1 0 8 0 scxspl 192 6015 0 6015 11 10 1 7 0 8 1 plimitpl 152 29 0 20 1 0 1 1 0 8 0 sigapl 424 430 0 398 4 0 4 4 0 8 0 futexpl 56 3320 0 3320 3 2 1 1 0 8 1 knotepl 112 98 0 79 1 0 1 1 0 8 0 kqueuepl 144 26 0 24 1 0 1 1 0 8 0 pipelkpl 48 94 0 84 1 0 1 1 0 8 0 pipepl 120 188 0 169 1 0 1 1 0 8 0 fdescpl 496 414 0 398 3 0 3 3 0 8 0 filepl 152 2377 0 2276 7 2 5 5 0 8 0 lockfpl 104 45 0 44 1 0 1 1 0 8 0 lockfspl 48 17 0 16 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 146 0 137 1 0 1 1 0 8 0 zombiepl 144 400 0 399 3 2 1 1 0 8 0 processpl 984 430 0 397 7 2 5 5 0 8 0 procpl 624 878 0 835 4 0 4 4 0 8 0 sockpl 400 696 0 676 7 4 3 4 0 8 0 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 245 0 0 30 0 30 30 0 8 0 mtagpl 80 38 0 0 1 0 1 1 0 8 0 mbufpl 256 314 0 0 17 0 17 17 0 8 0 bufpl 280 3821 0 132 264 0 264 264 0 8 0 anonpl 16 50514 0 35697 63 2 61 61 0 124 0 amapchunkpl 152 2218 0 2070 8 0 8 8 0 158 0 amappl16 192 1737 0 945 42 2 40 41 0 8 0 amappl15 184 2 0 2 2 2 0 1 0 8 0 amappl14 176 34 0 25 1 0 1 1 0 8 0 amappl13 168 38 0 33 1 0 1 1 0 8 0 amappl12 160 7 0 6 1 0 1 1 0 8 0 amappl11 152 57 0 42 1 0 1 1 0 8 0 amappl10 144 201 0 193 1 0 1 1 0 8 0 amappl9 136 385 0 384 1 0 1 1 0 8 0 amappl8 128 355 0 320 2 0 2 2 0 8 0 amappl7 120 202 0 190 1 0 1 1 0 8 0 amappl6 112 30 0 24 2 1 1 1 0 8 0 amappl5 104 316 0 298 1 0 1 1 0 8 0 amappl4 96 488 0 458 1 0 1 1 0 8 0 amappl3 88 108 0 103 1 0 1 1 0 8 0 amappl2 80 2371 0 2291 2 0 2 2 0 8 0 amappl1 72 19182 0 18719 23 13 10 18 0 8 0 amappl 80 1130 0 1079 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 417 0 398 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 417 0 398 1 0 1 1 0 8 0 vmmpekpl 168 7302 0 7269 2 0 2 2 0 8 0 vmmpepl 168 57182 0 55136 119 28 91 110 0 357 0 vmsppl 368 416 0 397 2 0 2 2 0 8 0 pdppl 4096 842 0 797 6 0 6 6 0 8 0 pvpl 32 176142 0 158259 155 9 146 152 0 265 0 pmappl 232 416 0 397 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 281 0 12 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(ffffffff826aba68,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806e95a178,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806e95a178,fffffd8007e52d48,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806e95a178,fffffd8007e52d48,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806e95a178,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e95a178,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023fc7ac0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023fc7ac0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e93128,ffff800023fc7c88,ffff800023fc7cd0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023fc7d50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023fc7d50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x117176d0920, 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 __mp_lock(ffffffff826904e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff826904e0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020e5f0f0,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd806e95a8a8) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd806e95a8a8) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020ec6f90) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020e19860) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -9