kernel: page fault trap, code=0 Stopped at 0 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault attempt to execute user address 0x0 in supervisor mode 0(0,0,ffff800020a4f5f8,ffff800020a4f650,ffffffffffffffff,ffffffffffffffff) at 0 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: 1 ddb{1}> trace 0(0,0,ffff800020a4f5f8,ffff800020a4f650,ffffffffffffffff,ffffffffffffffff) at 0 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020a4f650 rbx 0 rdx 0xffff800020a4f5f8 rcx 0 rax 0xd r8 0x8 r9 0x3 r10 0x73dc346864c56e32 r11 0 r12 0xffff800020a4f5f8 r13 0x1 r14 0xffff80000002b080 r15 0xffff80000002b0e0 rip 0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020a4f5e8 ss 0x10 0 ddb{1}> show proc PROC (softnet) pid=475034 stat=onproc flags process=14000 proc=200 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020a28c30,0xffff800020a284f0 process=0xffff800020a2b680 user=0xffff800020a4a000, vmspace=0xffffffff826445c8 estcpu=1, cpticks=2, pctcpu=1.16 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 33530 197957 21165 0 2 0 syz-executor.0 33530 230581 21165 0 7 0x4000000 syz-executor.0 90986 206711 2411 0 2 0 syz-executor.1 90986 218421 2411 0 3 0x4000000 netlock syz-executor.1 90986 216369 2411 0 2 0x4000000 syz-executor.1 2411 229409 72366 0 3 0x82 nanosleep syz-executor.1 21165 120466 72366 0 3 0x82 nanosleep syz-executor.0 72366 364086 92049 0 3 0x82 thrsleep syz-fuzzer 72366 85111 92049 0 3 0x4000082 nanosleep syz-fuzzer 72366 448061 92049 0 3 0x4000082 thrsleep syz-fuzzer 72366 113507 92049 0 3 0x4000082 thrsleep syz-fuzzer 72366 64394 92049 0 3 0x4000082 thrsleep syz-fuzzer 72366 313108 92049 0 3 0x4000082 nanosleep syz-fuzzer 72366 222676 92049 0 3 0x4000082 thrsleep syz-fuzzer 72366 281142 92049 0 3 0x4000082 kqread syz-fuzzer 72366 483854 92049 0 3 0x4000082 thrsleep syz-fuzzer 72366 362464 92049 0 3 0x4000082 thrsleep syz-fuzzer 92049 418391 32398 0 3 0x10008a pause ksh 32398 200844 15243 0 3 0x92 select sshd 25310 15822 1 0 3 0x100083 ttyin getty 15243 170067 1 0 3 0x80 select sshd 42938 20215 82204 74 3 0x100092 bpf pflogd 82204 194828 1 0 3 0x80 netio pflogd 17631 476626 2239 73 3 0x100090 kqread syslogd 2239 458170 1 0 3 0x100082 netio syslogd 29127 64456 1 77 3 0x100090 poll dhclient 9082 332462 1 0 3 0x80 poll dhclient 72834 505226 0 0 3 0x14200 pgzero zerothread 68882 338176 0 0 3 0x14200 aiodoned aiodoned 21407 58291 0 0 3 0x14200 syncer update 71656 147040 0 0 3 0x14200 cleaner cleaner 17914 370841 0 0 3 0x14200 reaper reaper 30443 344754 0 0 3 0x14200 pgdaemon pagedaemon 80331 233730 0 0 3 0x14200 bored crynlk 7457 198564 0 0 3 0x14200 bored crypto 58814 188987 0 0 3 0x40014200 acpi0 acpi0 93734 283521 0 0 3 0x40014200 idle1 * 4964 475034 0 0 7 0x14200 softnet 19616 379168 0 0 3 0x14200 bored systqmp 70687 464155 0 0 3 0x14200 bored systq 68921 363674 0 0 3 0x40014200 bored softclock 34577 481748 0 0 3 0x40014200 idle0 53317 7785 0 0 3 0x14200 bored smr 1 77592 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 33530 (syz-executor.0) thread 0xffff800020ac9608 (230581) exclusive rwlock netlock r = 0 (0xffffffff8250ada8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sosend+0x559 sys/kern/uipc_socket.c:537 #3 sendit+0x52b sys/kern/uipc_syscalls.c:657 #4 sys_sendto+0x80 sys/kern/uipc_syscalls.c:522 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 Process 4964 (softnet) thread 0xffff800020a28750 (475034) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82619df8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 #2 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #3 alltraps_kern_meltdown+0x7b shared rwlock softnet r = 0 (0xffff80000002b0e0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 taskq_thread+0x8f sys/kern/kern_task.c:368 #2 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9508 6475K 6668K 78643K 10756 0 pcb 13 8K 8K 78643K 22 0 rtable 108 4K 4K 78643K 248 0 ifaddr 66 14K 14K 78643K 90 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1473 0 iov 0 0K 12K 78643K 12 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1281 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 58 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 6 17K 25K 78643K 101 0 sigio 0 0K 0K 78643K 6 0 proc 61 63K 95K 78643K 450 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 8 0 in_multi 62 3K 3K 78643K 67 0 ether_multi 1 0K 0K 78643K 3 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 217 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 105 21K 30K 78643K 1260 0 UVM aobj 6 2K 2K 78643K 6 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 10 0 NDP 9 0K 0K 78643K 17 0 temp 88 3010K 3074K 78643K 5248 0 kqueue 3 4K 9K 78643K 11 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 7 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 25 0 23 1 0 1 1 0 8 0 rtentry 112 48 0 4 2 0 2 2 0 8 0 unpcb 120 59 0 48 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 166 0 166 1 0 1 1 0 8 1 tcpcb 544 31 0 27 1 0 1 1 0 8 0 inpcb 280 204 0 196 2 0 2 2 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 3 0 3 1 0 1 1 0 8 1 pffrag 232 3 0 2 1 0 1 1 0 482 0 pffrnode 88 3 0 2 1 0 1 1 0 8 0 pffrent 40 102 0 90 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 pfstitem 24 16 0 0 1 0 1 1 0 8 0 pfstkey 112 16 0 0 1 0 1 1 0 8 0 pfstate 328 16 0 0 2 0 2 2 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 256 220 0 2 14 0 14 14 0 8 0 art_table 32 221 0 2 2 0 2 2 0 8 0 art_node 16 47 0 7 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semapl 112 56 0 46 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1546 0 138 46 0 46 46 0 8 0 ffsino 272 1546 0 138 95 0 95 95 0 8 0 nchpl 144 1867 0 245 61 0 61 61 0 8 0 uvmvnodes 72 1629 0 0 30 0 30 30 0 8 0 vnodes 208 1629 0 0 86 0 86 86 0 8 0 namei 1024 4953 0 4953 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 5228 0 5228 8 1 7 7 0 8 7 plimitpl 152 21 0 13 1 0 1 1 0 8 0 sigapl 432 300 0 284 3 0 3 3 0 8 1 futexpl 56 1628 0 1628 1 0 1 1 0 8 1 knotepl 112 60 0 41 1 0 1 1 0 8 0 kqueuepl 104 14 0 12 1 0 1 1 0 8 0 pipelkpl 48 94 0 84 1 0 1 1 0 8 0 pipepl 120 188 0 169 2 0 2 2 0 8 1 fdescpl 496 301 0 284 3 0 3 3 0 8 0 filepl 152 1752 0 1647 6 0 6 6 0 8 1 lockfpl 104 62 0 61 1 0 1 1 0 8 0 lockfspl 48 22 0 21 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 96 159 0 150 1 0 1 1 0 8 0 zombiepl 144 284 0 284 1 0 1 1 0 8 1 processpl 960 316 0 284 5 0 5 5 0 8 0 procpl 624 492 0 448 4 0 4 4 0 8 0 sockpl 400 293 0 272 4 0 4 4 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 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 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 163 0 0 20 0 20 20 0 8 0 mtagpl 80 5 0 0 1 0 1 1 0 8 0 mbufpl 256 208 0 0 12 0 12 12 0 8 0 bufpl 280 6369 0 1340 360 0 360 360 0 8 0 anonpl 16 45126 0 28739 71 1 70 70 0 125 4 amapchunkpl 152 1582 0 1443 11 0 11 11 0 158 4 amappl16 192 1239 0 348 45 0 45 45 0 8 0 amappl15 184 124 0 116 1 0 1 1 0 8 0 amappl14 176 27 0 26 1 0 1 1 0 8 0 amappl13 168 36 0 34 1 0 1 1 0 8 0 amappl12 160 7 0 6 1 0 1 1 0 8 0 amappl11 152 56 0 41 1 0 1 1 0 8 0 amappl10 144 12 0 8 1 0 1 1 0 8 0 amappl9 136 612 0 607 1 0 1 1 0 8 0 amappl8 128 128 0 102 2 0 2 2 0 8 0 amappl7 120 104 0 93 1 0 1 1 0 8 0 amappl6 112 58 0 50 1 0 1 1 0 8 0 amappl5 104 139 0 125 1 0 1 1 0 8 0 amappl4 96 592 0 558 1 0 1 1 0 8 0 amappl3 88 113 0 105 1 0 1 1 0 8 0 amappl2 80 1502 0 1414 3 1 2 3 0 8 0 amappl1 72 16729 0 16262 26 13 13 21 0 8 3 amappl 80 746 0 699 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 301 0 284 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 301 0 284 1 0 1 1 0 8 0 vmmpekpl 168 6280 0 6244 2 0 2 2 0 8 0 vmmpepl 168 44174 0 41993 117 5 112 112 0 357 16 vmsppl 368 300 0 284 2 0 2 2 0 8 0 pdppl 4096 609 0 568 6 0 6 6 0 8 0 pvpl 32 153086 0 133399 177 0 177 177 0 265 18 pmappl 232 300 0 284 2 0 2 2 0 8 1 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 171 0 3 5 0 5 5 0 8 0