uvm_fault(0xffffffff82805ac0, 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(0xffffffff82805ac0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68a190,0,ffff800020e1cea8,0,0,ffff800020e1cdb4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68a190,0,ffff800020e1cea8,0,0,ffff800020e1cdb4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1cdf0, count: 0 ddb{0}> trace soreceive(fffffd806f68a190,0,ffff800020e1cea8,0,0,ffff800020e1cdb4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68a190,0,ffff800020e1cea8,0,0,ffff800020e1cdb4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd806fc36098,ffff800020e1cea8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1cea8,0,ffff800020e1cf90) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1cf40,ffff800020e1cf90) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d010) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d010) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffed9e0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1cd90 rbx 0xfffffd80698dc000 rdx 0x68544 acpi_pdirpa+0x543ac rcx 0 rax 0 r8 0xffffffff811fafd1 soreceive+0x5c1 r9 0x3 r10 0x8690504aa539d0ae r11 0xf730cf1b94a6e763 r12 0x47c r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68a190 rip 0xffffffff811fbb10 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1cca0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=24485 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc9c8,0xffff800020ddd128 process=0xffff800020df07c0 user=0xffff800020e18000, vmspace=0xfffffd807efff2e0 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 35720 452940 83097 0 7 0 syz-executor.1 35720 477271 83097 0 3 0x4000080 fsleep syz-executor.1 43903 388221 0 0 2 0x14600 acct 21475 323041 0 0 3 0x14200 bored sosplice 83097 272090 61009 0 2 0x482 syz-executor.1 82236 265017 61009 0 2 0x482 syz-executor.0 61009 103211 98867 0 3 0x82 thrsleep syz-fuzzer 61009 443648 98867 0 2 0x4000482 syz-fuzzer 61009 181907 98867 0 3 0x4000082 thrsleep syz-fuzzer 61009 275270 98867 0 3 0x4000082 thrsleep syz-fuzzer 61009 300370 98867 0 3 0x4000082 thrsleep syz-fuzzer 61009 333990 98867 0 3 0x4000082 kqread syz-fuzzer 61009 481879 98867 0 3 0x4000082 thrsleep syz-fuzzer 61009 173041 98867 0 3 0x4000082 thrsleep syz-fuzzer 61009 266763 98867 0 3 0x4000082 thrsleep syz-fuzzer 61009 84694 98867 0 2 0x4000482 syz-fuzzer 98867 386249 93393 0 3 0x10008a pause ksh 93393 359351 57353 0 3 0x92 select sshd 50769 509854 1 0 3 0x100083 ttyin getty 57353 105718 1 0 3 0x80 select sshd 6970 38647 6323 74 3 0x100092 bpf pflogd 6323 227539 1 0 3 0x80 netio pflogd 77094 383089 4377 73 3 0x100090 kqread syslogd 4377 120621 1 0 3 0x100082 netio syslogd 17366 260107 1 77 2 0x100010 dhclient * 2861 24485 1 0 7 0 dhclient 63784 62429 0 0 3 0x14200 bored smr 61468 519861 0 0 3 0x14200 pgzero zerothread 62207 446222 0 0 3 0x14200 aiodoned aiodoned 12849 179925 0 0 3 0x14200 syncer update 12050 269913 0 0 3 0x14200 cleaner cleaner 35562 348012 0 0 3 0x14200 reaper reaper 65820 93350 0 0 3 0x14200 pgdaemon pagedaemon 68488 299316 0 0 3 0x14200 bored crynlk 57171 213085 0 0 3 0x14200 bored crypto 64340 493623 0 0 3 0x40014200 acpi0 acpi0 60360 308434 0 0 3 0x40014200 idle1 80422 210716 0 0 3 0x14200 bored softnet 40650 182720 0 0 3 0x14200 bored systqmp 24797 431681 0 0 3 0x14200 bored systq 87449 298797 0 0 2 0x40014200 softclock 83854 495829 0 0 3 0x40014200 idle0 1 512162 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 2861 (dhclient) thread 0xffff800020ddcea8 (24485) 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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9535 6430K 6672K 78643K 10938 0 pcb 13 8K 8K 78643K 77 0 rtable 103 5K 7K 78643K 401 0 ifaddr 79 14K 17K 78643K 134 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1540 0 iov 0 0K 16K 78643K 57 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1384 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 11 1K 1K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 338 0 sigio 0 0K 0K 78643K 7 0 proc 61 63K 95K 78643K 460 0 subproc 32 2K 2K 78643K 38 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 62 0 in_multi 42 2K 3K 78643K 120 0 ether_multi 1 0K 0K 78643K 8 0 mrt 1 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 247 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 133 88K 88K 78643K 2087 0 UVM aobj 13 2K 2K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 35 0 NDP 14 0K 0K 78643K 29 0 temp 118 3863K 3927K 78643K 4589 0 kqueue 3 4K 10K 78643K 16 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 32 0 30 1 0 1 1 0 8 0 rtentry 112 83 0 45 2 0 2 2 0 8 0 unpcb 120 143 0 132 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpqe 32 192 0 192 3 3 0 1 0 8 0 tcpcb 544 109 0 105 1 0 1 1 0 8 0 inpcb 296 633 0 624 6 4 2 2 0 8 1 nd6 48 21 0 17 1 0 1 1 0 8 0 pkpcb 40 14 0 14 4 4 0 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 pfstscr 40 3 0 3 2 1 1 1 0 8 1 pffrag 232 6 0 6 3 3 0 1 0 482 0 pffrnode 88 6 0 6 3 3 0 1 0 8 0 pffrent 40 186 0 186 3 3 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 26 0 24 3 2 1 1 0 8 0 pftag 88 4 0 4 2 2 0 1 0 8 0 pfstitem 24 23 0 20 1 0 1 1 0 8 0 pfstkey 112 27 0 24 1 0 1 1 0 8 0 pfstate 328 25 0 22 2 0 2 2 0 8 0 pfrule 1360 37 0 28 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 363 0 179 16 3 13 14 0 8 0 art_table 32 364 0 179 2 0 2 2 0 8 0 art_node 16 82 0 47 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 7 1 0 1 1 0 8 0 semupl 112 4 0 4 2 2 0 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1907 0 501 89 0 89 89 0 8 0 ffsino 272 1907 0 501 96 1 95 95 0 8 0 nchpl 144 2565 0 953 60 0 60 60 0 8 0 uvmvnodes 72 2016 0 0 37 0 37 37 0 8 0 vnodes 208 2016 0 0 107 0 107 107 0 8 0 namei 1024 7836 0 7836 3 2 1 1 0 8 1 percpumem 16 34 0 2 1 0 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 13 0 9 3 2 1 1 0 8 0 scxspl 192 7934 0 7934 11 10 1 7 0 8 1 plimitpl 152 36 0 28 1 0 1 1 0 8 0 sigapl 424 555 0 521 4 0 4 4 0 8 0 futexpl 56 5040 0 5039 2 1 1 1 0 8 0 knotepl 112 79 0 60 1 0 1 1 0 8 0 kqueuepl 144 37 0 35 1 0 1 1 0 8 0 pipepl 304 126 0 116 4 3 1 2 0 8 0 fdescpl 496 538 0 521 3 0 3 3 0 8 0 filepl 152 3857 0 3753 6 1 5 5 0 8 0 lockfpl 104 111 0 110 1 0 1 1 0 8 0 lockfspl 48 39 0 38 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 1021 0 1012 1 0 1 1 0 8 0 zombiepl 144 522 0 521 2 1 1 1 0 8 0 processpl 984 555 0 521 6 1 5 5 0 8 0 procpl 624 1299 0 1255 5 1 4 5 0 8 0 sosppl 128 3 0 3 2 1 1 1 0 8 1 sockpl 400 826 0 805 7 4 3 4 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 10 0 0 2 0 2 2 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 155 0 0 19 0 19 19 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 350 0 0 19 1 18 18 0 8 0 bufpl 280 4236 0 133 294 0 294 294 0 8 0 anonpl 16 62271 0 45326 75 4 71 72 0 124 0 amapchunkpl 152 2796 0 2633 8 1 7 8 0 158 0 amappl16 192 2508 0 1556 50 2 48 49 0 8 0 amappl15 184 17 0 14 1 0 1 1 0 8 0 amappl14 176 28 0 22 1 0 1 1 0 8 0 amappl13 168 30 0 26 1 0 1 1 0 8 0 amappl12 160 7 0 3 1 0 1 1 0 8 0 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 14 0 11 1 0 1 1 0 8 0 amappl9 136 325 0 320 1 0 1 1 0 8 0 amappl8 128 656 0 623 2 0 2 2 0 8 0 amappl7 120 121 0 110 1 0 1 1 0 8 0 amappl6 112 31 0 27 1 0 1 1 0 8 0 amappl5 104 1175 0 1158 1 0 1 1 0 8 0 amappl4 96 493 0 463 1 0 1 1 0 8 0 amappl3 88 116 0 110 1 0 1 1 0 8 0 amappl2 80 3388 0 3311 2 0 2 2 0 8 0 amappl1 72 21407 0 20950 23 12 11 18 0 8 0 amappl 80 1554 0 1503 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 13 0 1 1 0 1 1 0 8 0 uaddrrnd 24 546 0 521 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 546 0 521 1 0 1 1 0 8 0 vmmpekpl 168 8350 0 8313 2 0 2 2 0 8 0 vmmpepl 168 73056 0 70821 133 34 99 115 0 357 1 vmsppl 368 545 0 521 3 0 3 3 0 8 0 pdppl 4096 1099 0 1050 9 2 7 7 0 8 0 pvpl 32 205119 0 185165 181 14 167 173 0 265 0 pmappl 232 545 0 521 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 280 0 17 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f68a190,0,ffff800020e1cea8,0,0,ffff800020e1cdb4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68a190,0,ffff800020e1cea8,0,0,ffff800020e1cdb4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd806fc36098,ffff800020e1cea8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1cea8,0,ffff800020e1cf90) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1cf40,ffff800020e1cf90) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d010) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d010) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffed9e0, 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(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 pageflttrap(ffff800023f0fea0,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800023f0fea0) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffbc930, count: -7