uvm_fault(0xffffffff82887cc0, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff82887cc0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68b640,0,ffff800020e1ebb8,0,0,ffff800020e1eac4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b640,0,ffff800020e1ebb8,0,0,ffff800020e1eac4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1eb00, count: 0 ddb{0}> trace soreceive(fffffd806f68b640,0,ffff800020e1ebb8,0,0,ffff800020e1eac4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b640,0,ffff800020e1ebb8,0,0,ffff800020e1eac4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807c4872f8,ffff800020e1ebb8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1ebb8,0,ffff800020e1eca0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1ec50,ffff800020e1eca0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ed20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ed20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce4b0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1eaa0 rbx 0xfffffd806836da00 rdx 0x71dd6 acpi_pdirpa+0x5dc3e rcx 0 rax 0 r8 0xffffffff817027d1 soreceive+0x5c1 r9 0x3 r10 0xf923aa271ec0c453 r11 0x659344b0b75e0582 r12 0xfa4 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68b640 rip 0xffffffff81703310 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1e9b0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=232749 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc758,0xffff800020ddd608 process=0xffff800020df0bb0 user=0xffff800020e19000, vmspace=0xfffffd807f000000 estcpu=0, cpticks=1, pctcpu=0.1 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99369 4181 93863 0 2 0 syz-executor.0 99369 211640 93863 0 2 0x4000000 syz-executor.0 93863 465563 7557 0 2 0x482 syz-executor.0 16631 106521 0 0 3 0x14200 acct acct 66634 306431 0 0 3 0x14200 bored sosplice 83769 448434 0 0 3 0x14280 nfsidl nfsio 71477 342625 0 0 3 0x14280 nfsidl nfsio 34256 190298 0 0 3 0x14280 nfsidl nfsio 99735 272472 0 0 3 0x14280 nfsidl nfsio 54463 107308 0 0 3 0x14280 nfsidl nfsio 77020 62833 0 0 3 0x14280 nfsidl nfsio 65131 503995 0 0 3 0x14280 nfsidl nfsio 17859 325830 0 0 3 0x14280 nfsidl nfsio 19303 125504 0 0 3 0x14280 nfsidl nfsio 58899 6023 0 0 3 0x14280 nfsidl nfsio 95174 200989 0 0 3 0x14280 nfsidl nfsio 67226 477177 0 0 3 0x14280 nfsidl nfsio 62237 411959 0 0 3 0x14280 nfsidl nfsio 26567 375704 0 0 3 0x14280 nfsidl nfsio 66359 269141 0 0 3 0x14280 nfsidl nfsio 73477 489989 0 0 3 0x14280 nfsidl nfsio 50147 20009 0 0 3 0x14280 nfsidl nfsio 35738 404558 0 0 3 0x14280 nfsidl nfsio 14504 372539 0 0 3 0x14280 nfsidl nfsio 24647 401777 0 0 3 0x14280 nfsidl nfsio 95239 480710 7557 0 2 0x2 syz-executor.1 7557 338777 92633 0 3 0x82 thrsleep syz-fuzzer 7557 352088 92633 0 3 0x4000082 nanosleep syz-fuzzer 7557 159247 92633 0 3 0x4000082 thrsleep syz-fuzzer 7557 62718 92633 0 7 0x4000482 syz-fuzzer 7557 19641 92633 0 3 0x4000082 thrsleep syz-fuzzer 7557 78365 92633 0 3 0x4000082 thrsleep syz-fuzzer 7557 328947 92633 0 3 0x4000082 thrsleep syz-fuzzer 7557 10552 92633 0 3 0x4000082 thrsleep syz-fuzzer 7557 447561 92633 0 2 0x4000002 syz-fuzzer 7557 107385 92633 0 3 0x4000082 thrsleep syz-fuzzer 92633 38908 61667 0 3 0x10008a pause ksh 61667 76776 5267 0 3 0x92 select sshd 89083 334438 1 0 3 0x100083 ttyin getty 5267 406106 1 0 3 0x80 select sshd 36398 422226 96714 74 3 0x100092 bpf pflogd 96714 82529 1 0 3 0x80 netio pflogd 33458 129309 39460 73 3 0x100090 kqread syslogd 39460 269009 1 0 3 0x100082 netio syslogd 55124 35158 1 77 3 0x100090 poll dhclient * 9991 232749 1 0 7 0 dhclient 96216 42652 0 0 3 0x14200 bored smr 23294 246548 0 0 3 0x14200 pgzero zerothread 25142 457225 0 0 3 0x14200 aiodoned aiodoned 76007 17732 0 0 3 0x14200 syncer update 43485 404893 0 0 3 0x14200 cleaner cleaner 97711 284534 0 0 3 0x14200 reaper reaper 85361 309738 0 0 3 0x14200 pgdaemon pagedaemon 52299 458719 0 0 3 0x14200 bored crynlk 98873 396474 0 0 3 0x14200 bored crypto 49359 406647 0 0 3 0x40014200 acpi0 acpi0 98493 232887 0 0 3 0x40014200 idle1 91746 262874 0 0 3 0x14200 bored softnet 69073 430915 0 0 3 0x14200 bored systqmp 23816 428260 0 0 3 0x14200 bored systq 9147 366615 0 0 3 0x40014200 bored softclock 19452 373469 0 0 3 0x40014200 idle0 1 14815 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 9991 (dhclient) thread 0xffff800020ddcea8 (232749) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828b55a0) #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9516 6431K 6797K 78643K 11049 0 pcb 13 8K 8K 78643K 53 0 rtable 81 3K 4K 78643K 406 0 ifaddr 68 13K 14K 78643K 144 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1494 0 iov 0 0K 12K 78643K 37 0 mount 1 1K 1K 78643K 1 0 vnodes 1224 77K 77K 78643K 1376 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 1K 1K 78643K 27 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 420 0 sigio 0 0K 0K 78643K 5 0 proc 61 63K 83K 78643K 513 0 subproc 32 2K 2K 78643K 53 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 33 0 in_multi 43 2K 3K 78643K 136 0 ether_multi 1 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 238 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 126 23K 24K 78643K 2265 0 UVM aobj 11 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 31 0 NDP 12 0K 0K 78643K 41 0 temp 109 3862K 3926K 78643K 9998 0 kqueue 3 4K 9K 78643K 23 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 10 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 90 0 60 2 0 2 2 0 8 0 unpcb 120 137 0 127 1 0 1 1 0 8 0 syncache 264 9 0 9 2 1 1 1 0 8 1 tcpqe 32 158 0 158 3 2 1 1 0 8 1 tcpcb 544 122 0 116 1 0 1 1 0 8 0 inpcb 296 679 0 667 2 0 2 2 0 8 1 nd6 48 24 0 23 1 0 1 1 0 8 0 pffrag 232 4 0 3 1 0 1 1 0 482 0 pffrnode 88 4 0 3 1 0 1 1 0 8 0 pffrent 40 137 0 136 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 6 0 6 1 0 1 1 0 8 1 pfstitem 24 72 0 5 1 0 1 1 0 8 0 pfstkey 112 72 0 5 2 0 2 2 0 8 0 pfstate 328 72 0 5 6 0 6 6 0 8 0 pfrule 1360 25 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 256 0 122 13 0 13 13 0 8 2 art_table 32 257 0 122 2 0 2 2 0 8 0 art_node 16 89 0 61 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 15 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 10 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1910 0 501 89 0 89 89 0 8 0 ffsino 272 1910 0 501 95 0 95 95 0 8 0 nchpl 144 2781 0 1187 60 0 60 60 0 8 0 uvmvnodes 72 2070 0 0 38 0 38 38 0 8 0 vnodes 208 2070 0 0 109 0 109 109 0 8 0 namei 1024 7392 0 7392 1 0 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 0 1 1 0 8 1 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 8045 0 8045 8 7 1 7 0 8 1 plimitpl 152 34 0 26 1 0 1 1 0 8 0 sigapl 424 654 0 601 7 0 7 7 0 8 1 futexpl 56 5434 0 5434 1 0 1 1 0 8 1 knotepl 112 90 0 71 1 0 1 1 0 8 0 kqueuepl 144 84 0 81 1 0 1 1 0 8 0 pipepl 304 156 0 146 4 2 2 3 0 8 1 fdescpl 496 617 0 601 3 0 3 3 0 8 0 filepl 152 3432 0 3328 7 2 5 7 0 8 1 lockfpl 104 81 0 80 1 0 1 1 0 8 0 lockfspl 48 31 0 30 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 231 0 222 1 0 1 1 0 8 0 zombiepl 144 601 0 601 1 0 1 1 0 8 1 processpl 992 654 0 601 7 0 7 7 0 8 0 procpl 624 1469 0 1406 6 0 6 6 0 8 0 srpgc 64 2 0 2 1 0 1 1 0 8 1 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 400 852 0 828 4 0 4 4 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 257 0 0 32 1 31 32 0 8 0 mtagpl 96 26 0 0 1 0 1 1 0 8 0 mbufpl 256 280 0 0 17 0 17 17 0 8 0 bufpl 280 4052 0 132 280 0 280 280 0 8 0 anonpl 16 76303 0 59958 78 9 69 77 0 124 0 amapchunkpl 152 2991 0 2840 8 1 7 8 0 158 0 amappl16 192 2781 0 1875 53 6 47 52 0 8 1 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 28 0 24 1 0 1 1 0 8 0 amappl13 168 384 0 380 1 0 1 1 0 8 0 amappl12 160 174 0 172 2 1 1 1 0 8 0 amappl11 152 80 0 63 1 0 1 1 0 8 0 amappl10 144 29 0 21 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 377 0 344 2 0 2 2 0 8 0 amappl7 120 123 0 111 1 0 1 1 0 8 0 amappl6 112 46 0 40 1 0 1 1 0 8 0 amappl5 104 512 0 496 1 0 1 1 0 8 0 amappl4 96 689 0 660 1 0 1 1 0 8 0 amappl3 88 119 0 112 1 0 1 1 0 8 0 amappl2 80 4092 0 4020 2 0 2 2 0 8 0 amappl1 72 27048 0 26607 23 13 10 18 0 8 0 amappl 80 1706 0 1662 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 2 1 0 1 1 0 8 0 uaddrrnd 24 617 0 601 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 617 0 601 1 0 1 1 0 8 0 vmmpekpl 168 8909 0 8868 2 0 2 2 0 8 0 vmmpepl 168 86163 0 84090 145 19 126 126 0 357 31 vmsppl 368 616 0 601 2 0 2 2 0 8 0 pdppl 4096 1241 0 1202 6 0 6 6 0 8 1 pvpl 32 241256 0 221641 186 14 172 186 0 265 7 pmappl 232 616 0 601 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 279 0 4 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f68b640,0,ffff800020e1ebb8,0,0,ffff800020e1eac4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68b640,0,ffff800020e1ebb8,0,0,ffff800020e1eac4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807c4872f8,ffff800020e1ebb8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1ebb8,0,ffff800020e1eca0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1ec50,ffff800020e1eca0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ed20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ed20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffce4b0, count: -6 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(ffffffff828b5398) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828b5398) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828b5398,1) 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(ffff800020e88280,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e88280,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e88280,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff827b3df8,120,ffffffff823f09f4,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020e3f4f0,ffff800020e883b0,ffff800020e88400) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020e88480) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e88480) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00004de40, count: -12