uvm_fault(fffffd807efffa10,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efffa10,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f04e10,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f04e10) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e09128,ffff800021f04fd8,ffff800021f05020) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f050a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f050a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x931d295f9a0, 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(ffffffff828d46e0,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efffa10,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efffa10,fffffd80687e5988,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efffa10,fffffd80687e5988,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efffa10,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efffa10,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f04e10,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f04e10) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e09128,ffff800021f04fd8,ffff800021f05020) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f050a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f050a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x931d295f9a0, count: -14 ddb{0}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800021f04890 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800020ede000 rax 0xffff800000ae81c0 r8 0xffffffff81bc79af kprintf+0x16f r9 0x1 r10 0x2 r11 0x88c1fd763fbbeebc r12 0x1 r13 0xfffffd80687d6440 r14 0xffff800020e09128 r15 0x3 rip 0xffffffff81da3c38 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021f04880 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=268037 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e08288,0xffffffff828b7070 process=0xffff800020e23738 user=0xffff800021f00000, vmspace=0xfffffd807efffa10 estcpu=36, cpticks=17, pctcpu=0.0 user=0, sys=16, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 92422 504539 80175 0 2 0 syz-executor.0 *92422 268037 80175 0 7 0x4000000 syz-executor.0 72435 392320 32668 0 2 0x480 syz-executor.1 72435 195013 32668 0 3 0x4000080 nanosleep syz-executor.1 72435 35532 32668 0 3 0x4000080 fsleep syz-executor.1 11888 27117 0 0 3 0x14200 bored sosplice 32668 411839 89259 0 7 0x482 syz-executor.1 80175 420287 89259 0 2 0x482 syz-executor.0 89259 201090 19766 0 3 0x82 thrsleep syz-fuzzer 89259 325612 19766 0 2 0x4000482 syz-fuzzer 89259 3674 19766 0 3 0x4000082 thrsleep syz-fuzzer 89259 44016 19766 0 3 0x4000082 thrsleep syz-fuzzer 89259 233300 19766 0 3 0x4000082 thrsleep syz-fuzzer 89259 507871 19766 0 3 0x4000082 kqread syz-fuzzer 89259 48567 19766 0 3 0x4000082 thrsleep syz-fuzzer 89259 109095 19766 0 3 0x4000082 thrsleep syz-fuzzer 89259 7841 19766 0 3 0x4000082 thrsleep syz-fuzzer 89259 472672 19766 0 3 0x4000082 thrsleep syz-fuzzer 89259 69389 19766 0 3 0x4000082 thrsleep syz-fuzzer 19766 71887 7252 0 3 0x10008a pause ksh 7252 435245 31935 0 3 0x92 select sshd 73654 265217 1 0 2 0x100083 getty 31935 19892 1 0 3 0x80 select sshd 13071 259684 61489 74 2 0x100492 pflogd 61489 31500 1 0 3 0x80 netio pflogd 53312 204667 63237 73 2 0x100090 syslogd 63237 301445 1 0 3 0x100082 netio syslogd 77878 279821 1 77 3 0x100090 poll dhclient 81257 377428 1 0 3 0x80 poll dhclient 40912 185463 0 0 3 0x14200 bored smr 23924 56268 0 0 3 0x14200 pgzero zerothread 70705 334623 0 0 3 0x14200 aiodoned aiodoned 96551 350554 0 0 3 0x14200 syncer update 86985 501018 0 0 3 0x14200 cleaner cleaner 52977 238700 0 0 3 0x14200 reaper reaper 20158 221078 0 0 3 0x14200 pgdaemon pagedaemon 70024 319079 0 0 3 0x14200 bored crynlk 65633 373278 0 0 3 0x14200 bored crypto 92856 488644 0 0 3 0x40014200 acpi0 acpi0 97196 227976 0 0 3 0x40014200 idle1 98439 481678 0 0 3 0x14200 bored softnet 1257 442973 0 0 3 0x14200 bored systqmp 86428 160403 0 0 3 0x14200 bored systq 7392 34857 0 0 2 0x40014200 softclock 71801 61282 0 0 3 0x40014200 idle0 1 314352 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 92422 (syz-executor.0) thread 0xffff800020e09128 (268037) exclusive rwlock vmmaplk r = 0 (0xfffffd807efffa28) #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 (0xffffffff827254e8) #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 (0xffffffff82896708) #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 9512 6413K 6736K 78643K 10867 0 pcb 13 8K 8K 78643K 63 0 rtable 109 4K 6K 78643K 387 0 ifaddr 72 14K 15K 78643K 161 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1506 0 iov 0 0K 12K 78643K 23 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1303 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 47 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 204 0 sigio 0 0K 0K 78643K 2 0 proc 60 63K 95K 78643K 452 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 17 0 in_multi 48 2K 2K 78643K 97 0 ether_multi 1 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 228 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 119 22K 23K 78643K 1590 0 UVM aobj 7 2K 2K 78643K 7 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 11 0K 0K 78643K 28 0 temp 92 3851K 3928K 78643K 6276 0 kqueue 3 4K 10K 78643K 14 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 7 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 36 0 34 1 0 1 1 0 8 0 rtentry 112 57 0 15 2 0 2 2 0 8 0 unpcb 120 534 0 524 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 648 0 648 1 1 0 1 0 8 0 tcpcb 544 77 0 72 1 0 1 1 0 8 0 inpcb 280 448 0 439 2 1 1 2 0 8 0 nd6 48 10 0 6 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 5 0 4 1 0 1 1 0 482 0 pffrnode 88 5 0 4 1 0 1 1 0 8 0 pffrent 40 98 0 97 1 0 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 pfrktable 1344 35 0 33 1 0 1 1 0 8 0 pfstitem 24 41 0 0 1 0 1 1 0 8 0 pfstkey 112 41 0 0 2 0 2 2 0 8 0 pfstate 328 41 0 0 4 0 4 4 0 8 0 pfrule 1360 33 0 23 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 271 0 80 13 1 12 13 0 8 0 art_table 32 272 0 80 2 0 2 2 0 8 0 art_node 16 56 0 17 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0 semapl 112 42 0 32 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1689 0 287 89 0 89 89 0 8 0 ffsino 272 1689 0 287 95 1 94 94 0 8 0 nchpl 144 2156 0 547 60 0 60 60 0 8 0 uvmvnodes 72 1784 0 0 33 0 33 33 0 8 0 vnodes 208 1784 0 0 94 0 94 94 0 8 0 namei 1024 5722 0 5722 3 2 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 8 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6545 0 6545 10 9 1 7 0 8 1 plimitpl 152 24 0 16 1 0 1 1 0 8 0 sigapl 424 420 0 387 4 0 4 4 0 8 0 futexpl 56 3186 0 3185 1 0 1 1 0 8 0 knotepl 112 72 0 53 1 0 1 1 0 8 0 kqueuepl 144 36 0 33 1 0 1 1 0 8 0 pipelkpl 48 111 0 101 1 0 1 1 0 8 0 pipepl 120 222 0 203 2 1 1 2 0 8 0 fdescpl 496 404 0 387 3 0 3 3 0 8 0 filepl 152 2722 0 2618 8 3 5 7 0 8 0 lockfpl 104 26 0 25 1 0 1 1 0 8 0 lockfspl 48 10 0 9 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 131 0 122 1 0 1 1 0 8 0 zombiepl 144 388 0 388 3 2 1 1 0 8 1 processpl 984 420 0 387 6 1 5 5 0 8 0 procpl 624 835 0 789 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 1023 0 1002 5 2 3 4 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 180 0 0 22 0 22 22 0 8 0 mtagpl 80 16 0 0 1 0 1 1 0 8 0 mbufpl 256 346 0 0 22 0 22 22 0 8 0 bufpl 280 3838 0 133 265 0 265 265 0 8 0 anonpl 16 50654 0 34600 67 1 66 66 0 124 0 amapchunkpl 152 2084 0 1934 8 1 7 8 0 158 0 amappl16 192 1649 0 784 45 1 44 45 0 8 0 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 107 0 101 1 0 1 1 0 8 0 amappl13 168 117 0 111 1 0 1 1 0 8 0 amappl12 160 96 0 91 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 26 0 21 1 0 1 1 0 8 0 amappl9 136 383 0 382 1 0 1 1 0 8 0 amappl8 128 331 0 300 2 0 2 2 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 23 0 19 2 1 1 1 0 8 0 amappl5 104 310 0 291 1 0 1 1 0 8 0 amappl4 96 572 0 542 1 0 1 1 0 8 0 amappl3 88 108 0 103 1 0 1 1 0 8 0 amappl2 80 2366 0 2288 2 0 2 2 0 8 0 amappl1 72 18602 0 18134 23 13 10 18 0 8 0 amappl 80 1076 0 1029 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 404 0 387 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 404 0 387 1 0 1 1 0 8 0 vmmpekpl 168 6973 0 6935 2 0 2 2 0 8 0 vmmpepl 168 56407 0 54261 112 18 94 108 0 357 0 vmsppl 368 403 0 387 2 0 2 2 0 8 0 pdppl 4096 815 0 774 7 1 6 6 0 8 0 pvpl 32 171316 0 151513 165 5 160 162 0 265 0 pmappl 232 403 0 387 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 274 0 10 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(ffffffff828d46e0,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efffa10,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efffa10,fffffd80687e5988,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efffa10,fffffd80687e5988,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efffa10,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efffa10,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f04e10,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f04e10) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e09128,ffff800021f04fd8,ffff800021f05020) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f050a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f050a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x931d295f9a0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) 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(ffffffff82896500) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82896500) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82896500,1) 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(ffff800022cfbc50,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800022cfbc50,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800022cfbc50,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff828625a8,120,ffffffff823d8f85,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020e09d58,ffff800022cfbd80,ffff800022cfbdd0) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800022cfbe50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022cfbe50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffde4c0, count: -12