uvm_fault(fffffd807eff98a0,20000000,0,1) at uvm_fault+0x17c sys/uvm/uvm_fault.c:977 kpageflttrap(ffff8000242e6f50,20000000) at kpageflttrap+0x202 sys/arch/amd64/amd64/trap.c:265 kerntrap(ffff8000242e6f50) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:321 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x53 sys_connect(ffff80002123c000,ffff8000242e7118,ffff8000242e7160) at sys_connect+0x9b sys/kern/uipc_syscalls.c:362 syscall(ffff8000242e71e0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000242e71e0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2fe88703ab0, count: -13 ddb{0}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff8000242e6a50 rbx 0x3 rdx 0xffff800000b0afc0 rcx 0x3 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffffffff811412e1 witness_checkorder+0x1061 r9 0x5 r10 0xe3893b2a9a36cf0 r11 0xb26fa93031d7062 r12 0xffffffff828530d0 w_lodata+0x4c500 r13 0xffffffff82728380 netlock+0x10 r14 0xffffffff8284ecc0 w_lodata+0x480f0 r15 0xfffffd8002cd6680 rip 0xffffffff821bfb88 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000242e6a40 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=299501 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff80002123c2a0,0xffff80002123cd30 process=0xffff800021236a40 user=0xffff8000242e2000, vmspace=0xfffffd807eff98a0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 79609 506325 25921 0 2 0 syz-executor.1 2187 521570 36362 0 7 0 syz-executor.0 * 2187 299501 36362 0 7 0x4000000 syz-executor.0 19755 417364 0 0 3 0x14200 bored sosplice 25921 91507 97127 0 3 0x82 nanoslp syz-executor.1 36362 342134 97127 0 3 0x82 nanoslp syz-executor.0 97127 353690 15627 0 3 0x82 thrsleep syz-fuzzer 97127 291739 15627 0 3 0x4000082 nanoslp syz-fuzzer 97127 392053 15627 0 3 0x4000082 thrsleep syz-fuzzer 97127 261636 15627 0 3 0x4000082 thrsleep syz-fuzzer 97127 28108 15627 0 3 0x4000082 thrsleep syz-fuzzer 97127 312145 15627 0 3 0x4000082 kqread syz-fuzzer 97127 522269 15627 0 3 0x4000082 thrsleep syz-fuzzer 97127 392191 15627 0 3 0x4000082 thrsleep syz-fuzzer 97127 455317 15627 0 3 0x4000082 thrsleep syz-fuzzer 15627 235113 1377 0 3 0x10008a sigsusp ksh 1377 413662 46643 0 3 0x92 select sshd 34270 302830 1 0 3 0x100083 ttyin getty 46643 147243 1 0 3 0x80 select sshd 35504 343248 30202 74 3 0x100092 bpf pflogd 30202 47814 1 0 3 0x80 netio pflogd 11207 367245 32504 73 3 0x100090 kqread syslogd 32504 498804 1 0 3 0x100082 netio syslogd 85057 87828 1 77 3 0x100090 poll dhclient 78788 21896 1 0 3 0x80 poll dhclient 50233 378108 0 0 3 0x14200 bored smr 7669 102431 0 0 2 0x14200 zerothread 44534 150922 0 0 3 0x14200 aiodoned aiodoned 83727 185335 0 0 3 0x14200 syncer update 60778 316703 0 0 3 0x14200 cleaner cleaner 14390 37671 0 0 3 0x14200 reaper reaper 89244 494504 0 0 3 0x14200 pgdaemon pagedaemon 86878 254253 0 0 3 0x14200 bored crynlk 7706 371235 0 0 3 0x14200 bored crypto 46525 66522 0 0 3 0x14200 bored viomb 47778 368997 0 0 3 0x40014200 acpi0 acpi0 73971 267145 0 0 3 0x40014200 idle1 8533 349732 0 0 3 0x14200 bored softnet 59215 40622 0 0 3 0x14200 bored systqmp 32126 19276 0 0 3 0x14200 bored systq 56445 223792 0 0 3 0x40014200 bored softclock 4180 16955 0 0 3 0x40014200 idle0 1 505071 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 2187 (syz-executor.0) thread 0xffff80002123c000 (299501) exclusive rrwlock inode r = 0 (0xfffffd8069d945f0) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 rw_enter+0x443 sys/kern/kern_rwlock.c:312 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:463 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 uvn_get+0xd7 uvm_vnode_lock sys/uvm/uvm_vnode.c:1499 [inline] #5 uvn_get+0xd7 sys/uvm/uvm_vnode.c:993 #6 uvm_fault_lower+0x5e7 sys/uvm/uvm_fault.c:1146 #7 uvm_fault+0x17c sys/uvm/uvm_fault.c:977 #8 kpageflttrap+0x202 sys/arch/amd64/amd64/trap.c:265 #9 kerntrap+0xef sys/arch/amd64/amd64/trap.c:321 #10 alltraps_kern_meltdown+0x7b #11 copyin+0x53 #12 sys_connect+0x9b sys/kern/uipc_syscalls.c:362 #13 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #14 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 2 (0xffffffff828bf600) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 syscall+0x3fd mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x3fd sys/arch/amd64/amd64/trap.c:590 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9529 6434K 7200K 78643K 13674 0 pcb 13 8K 8K 78643K 162 0 rtable 108 3K 4K 78643K 415 0 ifaddr 69 13K 13K 78643K 119 0 sysctl 2 0K 0K 78643K 2 0 counters 44 34K 34K 78643K 62 0 ioctlops 0 0K 4K 78643K 1551 0 iov 0 0K 12K 78643K 112 0 mount 1 1K 1K 78643K 1 0 vnodes 1228 77K 78K 78643K 2494 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 27 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 196 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 6 17K 25K 78643K 4084 0 sigio 0 0K 0K 78643K 41 0 proc 62 63K 95K 78643K 700 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 225 0 in_multi 33 2K 2K 78643K 243 0 ether_multi 1 0K 0K 78643K 73 0 mrt 1 0K 0K 78643K 44 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 2K 78643K 429 0 pfkey data 0 0K 0K 78643K 5 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 131 24K 27K 78643K 9907 0 UVM aobj 38 7K 7K 78643K 38 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 80 0 NDP 12 0K 0K 78643K 27 0 temp 130 3982K 4100K 78643K 20163 0 kqueue 3 4K 14K 78643K 169 0 SYN cache 2 2400K 2408K 78643K 4 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 103 0 101 1 0 1 1 0 8 0 rtentry 112 63 0 19 2 0 2 2 0 8 0 unpcb 120 1019 0 987 3 1 2 2 0 8 0 syncache 296 19 0 19 4 4 0 1 0 8 0 tcpqe 32 58 0 58 4 4 0 1 0 8 0 tcpcb 736 431 0 427 13 12 1 4 0 8 0 inpcb 304 1145 0 1137 10 9 1 2 0 8 0 rttmr 72 6 0 6 1 1 0 1 0 8 0 nd6 48 10 0 4 1 0 1 1 0 8 0 pkpcb 40 34 0 34 4 4 0 1 0 8 0 kcovpl 48 3 0 1 1 0 1 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 1 0 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 pfqueue 264 5 0 5 1 1 0 1 0 8 0 pfstitem 24 41 0 32 1 0 1 1 0 8 0 pfstkey 112 41 0 32 1 0 1 1 0 8 0 pfstate 320 41 0 32 3 1 2 2 0 8 0 pfrule 1360 40 0 34 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 251 0 59 13 1 12 13 0 8 0 art_table 32 252 0 59 2 0 2 2 0 8 0 art_node 16 62 0 22 1 0 1 1 0 8 0 sysvmsgpl 40 44 0 26 1 0 1 1 0 8 0 semupl 112 18 0 18 1 1 0 1 0 8 0 semapl 112 194 0 184 1 0 1 1 0 8 0 shmpl 112 35 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6509 0 5107 90 2 88 89 0 8 0 ffsino 272 6509 0 5107 95 0 95 95 0 8 0 nchpl 144 11208 0 9620 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 26684 0 26684 2 1 1 1 0 8 1 percpumem 16 42 0 9 1 0 1 1 0 8 0 scxspl 216 34518 0 34518 10 9 1 8 0 8 1 plimitpl 152 46 0 38 1 0 1 1 0 8 0 sigapl 424 4298 0 4264 4 0 4 4 0 8 0 futexpl 56 24738 0 24738 2 1 1 1 0 8 1 knotepl 112 245 0 225 1 0 1 1 0 8 0 kqueuepl 168 2103 0 2101 1 0 1 1 0 8 0 pipepl 336 159 0 148 4 2 2 2 0 8 0 fdescpl 496 4281 0 4264 3 0 3 3 0 8 0 filepl 152 12747 0 12643 8 3 5 6 0 8 1 lockfpl 104 334 0 333 1 0 1 1 0 8 0 lockfspl 48 139 0 138 1 0 1 1 0 8 0 sessionpl 144 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 1137 0 1128 1 0 1 1 0 8 0 zombiepl 144 4264 0 4264 1 0 1 1 0 8 1 processpl 1080 4298 0 4264 3 0 3 3 0 8 0 procpl 672 9122 0 9079 5 1 4 5 0 8 0 sosppl 168 5 0 5 1 1 0 1 0 8 0 sockpl 432 2301 0 2249 16 9 7 8 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 216 0 0 15 0 15 15 0 8 0 mtagpl 96 199 0 0 5 0 5 5 0 8 0 mbufpl 256 707 0 0 37 0 37 37 0 8 0 bufpl 280 9107 0 2860 447 0 447 447 0 8 0 anonpl 24 331182 0 325019 88 46 42 83 0 186 0 amapchunkpl 152 15470 0 15314 13 6 7 9 0 158 0 amappl16 200 15121 0 14877 51 38 13 37 0 8 0 amappl15 192 1555 0 1553 1 0 1 1 0 8 0 amappl14 184 23 0 19 1 0 1 1 0 8 0 amappl13 176 35 0 34 1 0 1 1 0 8 0 amappl12 168 4 0 1 1 0 1 1 0 8 0 amappl11 160 58 0 41 1 0 1 1 0 8 0 amappl10 152 15 0 11 1 0 1 1 0 8 0 amappl9 144 15 0 15 1 1 0 1 0 8 0 amappl8 136 4273 0 4209 3 0 3 3 0 8 0 amappl7 128 262 0 250 1 0 1 1 0 8 0 amappl6 120 72 0 58 1 0 1 1 0 8 0 amappl5 112 4972 0 4951 1 0 1 1 0 8 0 amappl4 104 314 0 283 1 0 1 1 0 8 0 amappl3 96 177 0 169 1 0 1 1 0 8 0 amappl2 88 33333 0 33259 3 1 2 3 0 8 0 amappl1 80 127455 0 126972 28 16 12 21 0 8 0 amappl 88 9401 0 9349 2 0 2 2 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 37 0 0 1 0 1 1 0 8 0 uaddrrnd 24 4281 0 4264 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4281 0 4264 1 0 1 1 0 8 0 vmmpekpl 168 21332 0 21304 2 0 2 2 0 8 0 vmmpepl 168 535706 0 534151 120 49 71 89 0 357 2 vmsppl 368 4280 0 4264 2 0 2 2 0 8 0 rwobjpl 56 112504 0 111546 39 24 15 21 0 8 1 pdppl 4096 8569 0 8528 57 16 41 45 0 8 0 pvpl 32 1516476 0 1507137 197 112 85 141 0 265 0 pmappl 232 4280 0 4264 2 1 1 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 342 0 37 9 0 9 9 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 witness_checkorder(ffffffff82728380,9,0) at witness_checkorder+0x108b rw_enter_write(ffffffff82728370) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 uvn_get(fffffd80668957b0,0,ffff8000242e6c58,ffff8000242e6c3c,0,1) at uvn_get+0xeb uvm_vnode_lock sys/uvm/uvm_vnode.c:1501 [inline] uvn_get(fffffd80668957b0,0,ffff8000242e6c58,ffff8000242e6c3c,0,1) at uvn_get+0xeb sys/uvm/uvm_vnode.c:993 uvm_fault_lower(ffff8000242e6dc0,ffff8000242e6df8,ffff8000242e6cc0,0) at uvm_fault_lower+0x5e7 sys/uvm/uvm_fault.c:1146 uvm_fault(fffffd807eff98a0,20000000,0,1) at uvm_fault+0x17c sys/uvm/uvm_fault.c:977 kpageflttrap(ffff8000242e6f50,20000000) at kpageflttrap+0x202 sys/arch/amd64/amd64/trap.c:265 kerntrap(ffff8000242e6f50) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:321 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x53 sys_connect(ffff80002123c000,ffff8000242e7118,ffff8000242e7160) at sys_connect+0x9b sys/kern/uipc_syscalls.c:362 syscall(ffff8000242e71e0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000242e71e0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2fe88703ab0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828bf3f8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828bf3f8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff8000222b9078,ffffffff8277bc20,120,ffffffff823a035a) at sleep_setup+0xc7 sys/kern/kern_synch.c:382 tsleep(ffffffff8277bc20,120,ffffffff823a035a,2) at tsleep+0x113 sleep_setup_timeout sys/kern/kern_synch.c:444 [inline] tsleep(ffffffff8277bc20,120,ffffffff823a035a,2) at tsleep+0x113 sys/kern/kern_synch.c:159 sys_nanosleep(ffff80002123c2a0,ffff8000222b91a0,ffff8000222b91f0) at sys_nanosleep+0x1f5 sys/kern/kern_time.c:297 syscall(ffff8000222b9270) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000222b9270) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4270, count: -9