uvm_fault(0xffffffff82883830, 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(0xffffffff82883830, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f689190,0,ffff800020e1e108,0,0,ffff800020e1e014) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689190,0,ffff800020e1e108,0,0,ffff800020e1e014) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1e050, count: 0 ddb{0}> trace soreceive(fffffd806f689190,0,ffff800020e1e108,0,0,ffff800020e1e014) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689190,0,ffff800020e1e108,0,0,ffff800020e1e014) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd806fc371c8,ffff800020e1e108,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1e108,0,ffff800020e1e1f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1e1a0,ffff800020e1e1f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e270) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e270) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff5480, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1dff0 rbx 0xfffffd806f115400 rdx 0x65104 acpi_pdirpa+0x50f6c rcx 0 rax 0 r8 0xffffffff81dc1811 soreceive+0x5c1 r9 0x3 r10 0x95da9bc2a6d8a5 r11 0x4c958997a0d30f5 r12 0x928 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f689190 rip 0xffffffff81dc2350 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1df00 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=121530 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcc38,0xffff800020ddceb8 process=0xffff800020df0010 user=0xffff800020e19000, vmspace=0xfffffd807f000450 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51847 149635 70122 0 2 0 syz-executor.0 64230 334692 63586 0 7 0 syz-executor.1 64230 219333 63586 0 3 0x4000080 fsleep syz-executor.1 73583 392845 0 0 3 0x14280 nfsidl nfsio 63077 221528 0 0 3 0x14280 nfsidl nfsio 62021 95493 0 0 3 0x14280 nfsidl nfsio 4752 476231 0 0 3 0x14280 nfsidl nfsio 24832 294037 0 0 3 0x14280 nfsidl nfsio 183 150985 0 0 3 0x14280 nfsidl nfsio 49241 293147 0 0 3 0x14280 nfsidl nfsio 90668 63146 0 0 3 0x14280 nfsidl nfsio 11295 420265 0 0 3 0x14280 nfsidl nfsio 34479 95435 0 0 3 0x14280 nfsidl nfsio 12790 451754 0 0 3 0x14280 nfsidl nfsio 92788 185780 0 0 3 0x14280 nfsidl nfsio 39965 155518 0 0 3 0x14280 nfsidl nfsio 85748 281759 0 0 3 0x14280 nfsidl nfsio 43395 336875 0 0 3 0x14280 nfsidl nfsio 79243 214278 0 0 3 0x14280 nfsidl nfsio 19903 475836 0 0 3 0x14280 nfsidl nfsio 66731 342800 0 0 3 0x14280 nfsidl nfsio 63376 412472 0 0 3 0x14280 nfsidl nfsio 65058 26197 0 0 3 0x14280 nfsidl nfsio 28601 215930 0 0 3 0x14200 bored sosplice 63586 477544 91897 0 2 0x482 syz-executor.1 70122 200196 91897 0 3 0x82 nanosleep syz-executor.0 91897 16694 71876 0 3 0x82 kqread syz-fuzzer 91897 108668 71876 0 2 0x4000482 syz-fuzzer 91897 31508 71876 0 3 0x4000082 thrsleep syz-fuzzer 91897 216829 71876 0 3 0x4000082 thrsleep syz-fuzzer 91897 193232 71876 0 3 0x4000082 thrsleep syz-fuzzer 91897 350374 71876 0 3 0x4000082 thrsleep syz-fuzzer 91897 310464 71876 0 3 0x4000082 thrsleep syz-fuzzer 91897 75583 71876 0 3 0x4000082 thrsleep syz-fuzzer 91897 314217 71876 0 2 0x4000482 syz-fuzzer 91897 107112 71876 0 3 0x4000082 thrsleep syz-fuzzer 91897 317596 71876 0 3 0x4000082 thrsleep syz-fuzzer 71876 407841 42275 0 3 0x10008a pause ksh 42275 455686 92852 0 3 0x92 select sshd 768 101508 1 0 3 0x100083 ttyin getty 92852 73982 1 0 3 0x80 select sshd 4660 219965 74712 74 3 0x100092 bpf pflogd 74712 475352 1 0 3 0x80 netio pflogd 63836 140152 9827 73 3 0x100090 kqread syslogd 9827 250055 1 0 3 0x100082 netio syslogd 20507 201471 1 77 3 0x100090 poll dhclient *87943 121530 1 0 7 0 dhclient 22535 245847 0 0 3 0x14200 bored smr 98015 117859 0 0 2 0x14200 zerothread 81904 211044 0 0 3 0x14200 aiodoned aiodoned 52436 466716 0 0 3 0x14200 syncer update 95400 480207 0 0 3 0x14200 cleaner cleaner 79138 429100 0 0 3 0x14200 reaper reaper 26845 396621 0 0 3 0x14200 pgdaemon pagedaemon 88632 498978 0 0 3 0x14200 bored crynlk 26865 417484 0 0 3 0x14200 bored crypto 38979 46797 0 0 3 0x40014200 acpi0 acpi0 65156 339098 0 0 3 0x40014200 idle1 7482 245598 0 0 3 0x14200 bored softnet 39483 494995 0 0 3 0x14200 bored systqmp 60354 356035 0 0 3 0x14200 bored systq 23099 134160 0 0 3 0x40014200 bored softclock 66486 238401 0 0 3 0x40014200 idle0 1 417746 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 87943 (dhclient) thread 0xffff800020ddc008 (121530) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8292e770) #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 9547 6449K 6695K 78643K 11694 0 pcb 13 8K 8K 78643K 88 0 rtable 110 9K 10K 78643K 476 0 ifaddr 94 17K 20K 78643K 173 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1564 0 iov 0 0K 16K 78643K 60 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1509 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 112 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 758 0 sigio 0 0K 0K 78643K 13 0 proc 65 63K 95K 78643K 490 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 23 0 in_multi 68 3K 3K 78643K 147 0 ether_multi 1 0K 0K 78643K 8 0 mrt 0 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 91 413K 413K 78643K 91 0 exec 0 0K 1K 78643K 237 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 121 55K 69K 78643K 3427 0 UVM aobj 17 7K 7K 78643K 17 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 61 0 NDP 15 0K 0K 78643K 33 0 temp 129 3872K 3939K 78643K 9640 0 kqueue 3 4K 12K 78643K 32 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 5 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 86 0 55 2 0 2 2 0 8 0 unpcb 120 379 0 369 1 0 1 1 0 8 0 syncache 264 13 0 13 6 5 1 1 0 8 1 tcpqe 32 424 0 424 1 1 0 1 0 8 0 tcpcb 544 177 0 173 1 0 1 1 0 8 0 inpcb 296 597 0 588 8 6 2 2 0 8 1 nd6 48 27 0 26 1 0 1 1 0 8 0 pkpcb 40 8 0 8 4 3 1 1 0 8 1 ppxss 1128 2 0 2 2 2 0 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 48 0 48 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 43 0 32 4 3 1 2 0 8 0 pfstitem 24 22 0 20 1 0 1 1 0 8 0 pfstkey 112 22 0 20 1 0 1 1 0 8 0 pfstate 328 22 0 20 2 0 2 2 0 8 1 pfsrctr 152 89 0 89 3 3 0 1 0 8 0 pfrule 1360 43 0 23 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 388 0 248 17 3 14 17 0 8 1 art_table 32 389 0 248 3 0 3 3 0 8 0 art_node 16 85 0 56 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 9 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 108 0 98 1 0 1 1 0 8 0 shmpl 112 14 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2399 0 997 89 0 89 89 0 8 0 ffsino 272 2399 0 997 96 2 94 95 0 8 0 nchpl 144 3567 0 1956 60 0 60 60 0 8 0 uvmvnodes 72 2586 0 0 48 0 48 48 0 8 0 vnodes 208 2586 0 0 137 0 137 137 0 8 0 namei 1024 18048 0 18048 6 5 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 3 1 0 1 1 0 8 0 pfiaddrpl 120 16 0 6 1 0 1 1 0 8 0 scxspl 192 10333 0 10333 14 13 1 7 0 8 1 plimitpl 152 41 0 33 1 0 1 1 0 8 0 sigapl 424 994 0 941 6 0 6 6 0 8 0 futexpl 56 13087 0 13086 5 4 1 1 0 8 0 knotepl 112 101 0 82 1 0 1 1 0 8 0 kqueuepl 144 1770 0 1766 1 0 1 1 0 8 0 pipepl 304 159 0 149 4 3 1 3 0 8 0 fdescpl 496 958 0 941 3 0 3 3 0 8 0 filepl 152 12603 0 12498 9 4 5 7 0 8 0 lockfpl 104 87 0 86 1 0 1 1 0 8 0 lockfspl 48 36 0 35 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 6783 0 6774 1 0 1 1 0 8 0 zombiepl 144 941 0 941 3 2 1 1 0 8 1 processpl 992 994 0 941 8 1 7 7 0 8 0 procpl 624 2654 0 2590 6 0 6 6 0 8 1 sosppl 128 15 0 15 5 5 0 1 0 8 0 sockpl 400 1021 0 1000 9 6 3 4 0 8 0 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 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 189 0 0 22 3 19 22 0 8 0 mtagpl 96 51 0 0 2 0 2 2 0 8 0 mbufpl 256 671 0 0 33 0 33 33 0 8 0 bufpl 280 4586 0 135 318 0 318 318 0 8 0 anonpl 16 103717 0 86726 114 42 72 85 0 124 3 amapchunkpl 152 5989 0 5835 25 15 10 14 0 158 2 amappl16 192 4485 0 3566 78 31 47 58 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 412 0 407 1 0 1 1 0 8 0 amappl13 168 364 0 359 1 0 1 1 0 8 0 amappl12 160 346 0 343 2 1 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 17 0 13 1 0 1 1 0 8 0 amappl9 136 395 0 393 1 0 1 1 0 8 0 amappl8 128 342 0 314 2 1 1 2 0 8 0 amappl7 120 121 0 109 1 0 1 1 0 8 0 amappl6 112 31 0 22 1 0 1 1 0 8 0 amappl5 104 532 0 515 1 0 1 1 0 8 0 amappl4 96 824 0 795 1 0 1 1 0 8 0 amappl3 88 852 0 843 1 0 1 1 0 8 0 amappl2 80 6709 0 6636 2 0 2 2 0 8 0 amappl1 72 30859 0 30408 23 13 10 18 0 8 0 amappl 80 2897 0 2848 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 16 0 0 1 0 1 1 0 8 0 uaddrrnd 24 963 0 944 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 963 0 944 1 0 1 1 0 8 0 vmmpekpl 168 11008 0 10968 2 0 2 2 0 8 0 vmmpepl 168 125273 0 123102 160 62 98 117 0 357 3 vmsppl 368 962 0 944 2 0 2 2 0 8 0 pdppl 4096 1933 0 1890 7 1 6 6 0 8 0 pvpl 32 308092 0 287738 242 62 180 201 0 265 15 pmappl 232 962 0 944 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 302 0 23 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f689190,0,ffff800020e1e108,0,0,ffff800020e1e014) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689190,0,ffff800020e1e108,0,0,ffff800020e1e014) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd806fc371c8,ffff800020e1e108,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1e108,0,ffff800020e1e1f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1e1a0,ffff800020e1e1f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e270) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e270) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff5480, 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(ffffffff8292e568) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292e568) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff8000230e8910,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff8000230e8910) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffe7470, count: -7