uvm_fault(0xffffffff82805ac0, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82805ac0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68d320,0,ffff800020e1d668,0,0,ffff800020e1d574) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68d320,0,ffff800020e1d668,0,0,ffff800020e1d574) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d5b0, count: 0 ddb{1}> trace soreceive(fffffd806f68d320,0,ffff800020e1d668,0,0,ffff800020e1d574) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68d320,0,ffff800020e1d668,0,0,ffff800020e1d574) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80739f62f8,ffff800020e1d668,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddd118,6,ffff800020e1d668,0,ffff800020e1d750) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddd118,ffff800020e1d700,ffff800020e1d750) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d7d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d7d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdc9f0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d550 rbx 0xfffffd806446e800 rdx 0x3063e acpi_pdirpa+0x1c4a6 rcx 0 rax 0 r8 0xffffffff811fafd1 soreceive+0x5c1 r9 0x3 r10 0x62581847152d5da7 r11 0xbabc3a8e44894253 r12 0x10b0 __ALIGN_SIZE+0xb0 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68d320 rip 0xffffffff811fbb10 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d460 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=6294 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc278,0xffff800020ddd608 process=0xffff800020df1348 user=0xffff800020e18000, vmspace=0xfffffd807efff000 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 88457 274762 9563 0 7 0 syz-executor.1 88457 36007 9563 0 2 0x4000000 syz-executor.1 90169 331288 0 0 3 0x14280 nfsidl nfsio 84415 242937 0 0 3 0x14280 nfsidl nfsio 20890 284586 0 0 3 0x14280 nfsidl nfsio 83366 415466 0 0 3 0x14280 nfsidl nfsio 77182 234008 0 0 3 0x14280 nfsidl nfsio 62756 476268 0 0 3 0x14280 nfsidl nfsio 16250 148606 0 0 3 0x14280 nfsidl nfsio 62178 185543 0 0 3 0x14280 nfsidl nfsio 3958 247544 0 0 3 0x14280 nfsidl nfsio 98491 473222 0 0 3 0x14280 nfsidl nfsio 70039 72584 0 0 3 0x14280 nfsidl nfsio 82011 251342 0 0 3 0x14280 nfsidl nfsio 24238 101344 0 0 3 0x14280 nfsidl nfsio 62830 337798 0 0 3 0x14280 nfsidl nfsio 56463 278327 0 0 3 0x14280 nfsidl nfsio 31725 504459 0 0 3 0x14280 nfsidl nfsio 21741 240552 0 0 3 0x14280 nfsidl nfsio 68395 303599 0 0 3 0x14280 nfsidl nfsio 42163 3816 0 0 3 0x14280 nfsidl nfsio 63298 242712 0 0 3 0x14280 nfsidl nfsio 13497 179408 0 0 3 0x14200 bored sosplice 9563 490068 5573 0 3 0x82 nanosleep syz-executor.1 78317 401556 5573 0 3 0x82 piperd syz-executor.0 5573 76795 35008 0 3 0x82 thrsleep syz-fuzzer 5573 456070 35008 0 3 0x4000082 nanosleep syz-fuzzer 5573 269431 35008 0 3 0x4000082 thrsleep syz-fuzzer 5573 305584 35008 0 2 0x4000002 syz-fuzzer 5573 8481 35008 0 3 0x4000082 thrsleep syz-fuzzer 5573 7516 35008 0 3 0x4000082 thrsleep syz-fuzzer 5573 255705 35008 0 3 0x4000082 thrsleep syz-fuzzer 5573 126383 35008 0 3 0x4000082 thrsleep syz-fuzzer 5573 33395 35008 0 3 0x4000082 thrsleep syz-fuzzer 5573 63388 35008 0 3 0x4000082 thrsleep syz-fuzzer 5573 468098 35008 0 3 0x4000082 kqread syz-fuzzer 35008 485479 88077 0 3 0x10008a pause ksh 88077 199246 36821 0 3 0x92 select sshd 77329 109398 1 0 3 0x100083 ttyin getty 36821 250709 1 0 3 0x80 select sshd 20663 246062 19502 74 3 0x100092 bpf pflogd 19502 413629 1 0 3 0x80 netio pflogd 49833 23685 39725 73 3 0x100090 kqread syslogd 39725 375848 1 0 3 0x100082 netio syslogd 7237 440891 1 77 2 0x100010 dhclient *19864 6294 1 0 7 0 dhclient 90279 217593 0 0 3 0x14200 bored smr 84163 47787 0 0 2 0x14200 zerothread 40304 421734 0 0 3 0x14200 aiodoned aiodoned 18354 124445 0 0 3 0x14200 syncer update 54617 155901 0 0 3 0x14200 cleaner cleaner 21593 60429 0 0 3 0x14200 reaper reaper 25597 472153 0 0 3 0x14200 pgdaemon pagedaemon 25951 145027 0 0 3 0x14200 bored crynlk 70332 347379 0 0 3 0x14200 bored crypto 21051 411296 0 0 3 0x40014200 acpi0 acpi0 79050 466622 0 0 3 0x40014200 idle1 64503 233343 0 0 3 0x14200 bored softnet 7598 322218 0 0 3 0x14200 bored systqmp 76245 255116 0 0 3 0x14200 bored systq 64022 275687 0 0 3 0x40014200 bored softclock 12731 272640 0 0 3 0x40014200 idle0 1 52177 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 19864 (dhclient) thread 0xffff800020ddd118 (6294) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82902548) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 soreceive+0x114 sys/kern/uipc_socket.c:737 #3 soo_read+0x53 sys/kern/sys_socket.c:70 #4 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #5 sys_read+0x83 sys/kern/sys_generic.c:157 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9533 6430K 6804K 78643K 11230 0 pcb 13 8K 8K 78643K 95 0 rtable 91 6K 10K 78643K 544 0 ifaddr 80 15K 17K 78643K 230 0 counters 43 33K 34K 78643K 69 0 ioctlops 0 0K 4K 78643K 1567 0 iov 0 0K 33K 78643K 79 0 mount 1 1K 1K 78643K 1 0 vnodes 1214 76K 77K 78643K 1412 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 68 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 481 0 sigio 0 0K 0K 78643K 16 0 proc 61 63K 83K 78643K 494 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 26 0 in_multi 52 2K 3K 78643K 162 0 ether_multi 1 0K 0K 78643K 10 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 255 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 136 104K 104K 78643K 2582 0 UVM aobj 9 2K 2K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 55 0 NDP 14 0K 0K 78643K 44 0 temp 131 3869K 3937K 78643K 20220 0 kqueue 3 4K 10K 78643K 23 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 8 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 31 0 29 1 0 1 1 0 8 0 rtentry 112 77 0 48 2 0 2 2 0 8 0 unpcb 120 1300 0 1289 1 0 1 1 0 8 0 syncache 264 10 0 10 4 3 1 1 0 8 1 tcpqe 32 41 0 41 1 1 0 1 0 8 0 tcpcb 544 156 0 152 2 1 1 2 0 8 0 inpcb 296 910 0 901 3 1 2 2 0 8 1 nd6 48 24 0 23 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 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 pfrktable 1344 81 0 76 2 1 1 2 0 8 0 pftag 88 2 0 2 1 1 0 1 0 8 0 pfstitem 24 17 0 10 1 0 1 1 0 8 0 pfstkey 112 17 0 10 1 0 1 1 0 8 0 pfstate 328 17 0 10 2 1 1 2 0 8 0 pfrule 1360 42 0 27 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 277 0 149 14 2 12 13 0 8 2 art_table 32 278 0 149 2 0 2 2 0 8 0 art_node 16 76 0 50 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 11 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 66 0 56 1 0 1 1 0 8 0 shmpl 112 11 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2135 0 732 89 0 89 89 0 8 0 ffsino 272 2135 0 732 94 0 94 94 0 8 0 nchpl 144 3054 0 1441 61 0 61 61 0 8 0 uvmvnodes 72 2301 0 0 42 0 42 42 0 8 0 vnodes 208 2301 0 0 122 0 122 122 0 8 0 namei 1024 8333 0 8333 2 1 1 1 0 8 1 percpumem 16 45 0 13 1 0 1 1 0 8 0 vcpupl 1984 10 0 0 2 0 2 2 0 8 0 vmpool 560 12 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 21 0 18 1 0 1 1 0 8 0 scxspl 192 10155 0 10154 10 9 1 7 0 8 0 plimitpl 152 43 0 35 1 0 1 1 0 8 0 sigapl 424 717 0 665 6 0 6 6 0 8 0 futexpl 56 8222 0 8222 2 1 1 1 0 8 1 knotepl 112 85 0 66 1 0 1 1 0 8 0 kqueuepl 144 67 0 63 1 0 1 1 0 8 0 pipepl 304 133 0 123 3 2 1 2 0 8 0 fdescpl 496 681 0 665 3 0 3 3 0 8 0 filepl 152 5043 0 4941 5 0 5 5 0 8 1 lockfpl 104 147 0 146 1 0 1 1 0 8 0 lockfspl 48 53 0 52 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 40 0 29 1 0 1 1 0 8 0 ucredpl 96 368 0 358 1 0 1 1 0 8 0 zombiepl 144 665 0 665 1 0 1 1 0 8 1 processpl 984 717 0 665 7 0 7 7 0 8 0 procpl 624 1802 0 1739 7 1 6 6 0 8 1 sosppl 128 5 0 5 3 3 0 1 0 8 0 sockpl 400 2253 0 2231 6 2 4 4 0 8 1 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 168 0 0 20 0 20 20 0 8 0 mtagpl 96 44 0 0 2 0 2 2 0 8 0 mbufpl 256 608 0 0 36 0 36 36 0 8 0 bufpl 280 4875 0 152 338 0 338 338 0 8 0 anonpl 16 78472 0 62035 91 8 83 83 0 124 14 amapchunkpl 152 4228 0 4086 21 14 7 20 0 158 0 amappl16 192 3089 0 2194 59 5 54 57 0 8 8 amappl15 184 237 0 234 1 0 1 1 0 8 0 amappl14 176 25 0 21 1 0 1 1 0 8 0 amappl13 168 242 0 238 1 0 1 1 0 8 0 amappl12 160 12 0 10 1 0 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 261 0 253 1 0 1 1 0 8 0 amappl9 136 384 0 383 1 0 1 1 0 8 0 amappl8 128 346 0 316 1 0 1 1 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 25 0 19 1 0 1 1 0 8 0 amappl5 104 585 0 568 1 0 1 1 0 8 0 amappl4 96 706 0 673 1 0 1 1 0 8 0 amappl3 88 120 0 115 1 0 1 1 0 8 0 amappl2 80 4759 0 4687 2 0 2 2 0 8 0 amappl1 72 24645 0 24211 23 13 10 18 0 8 0 amappl 80 2040 0 1993 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 12 0 4 1 0 1 1 0 8 0 uaddrrnd 24 693 0 667 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 693 0 667 1 0 1 1 0 8 0 vmmpekpl 168 9461 0 9424 2 0 2 2 0 8 0 vmmpepl 168 89996 0 87944 123 22 101 114 0 357 7 vmsppl 368 692 0 667 4 1 3 3 0 8 0 pdppl 4096 1393 0 1344 8 1 7 7 0 8 0 pvpl 32 252260 0 232578 207 10 197 197 0 265 36 pmappl 232 692 0 667 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 295 0 11 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(ffffffff82798ff0) 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(ffffffff82902340) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82902340) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800020ed7720,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f end of kernel end trace frame: 0x7f7ffffce9f0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f68d320,0,ffff800020e1d668,0,0,ffff800020e1d574) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68d320,0,ffff800020e1d668,0,0,ffff800020e1d574) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80739f62f8,ffff800020e1d668,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddd118,6,ffff800020e1d668,0,ffff800020e1d750) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddd118,ffff800020e1d700,ffff800020e1d750) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d7d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d7d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdc9f0, count: -6