uvm_fault(0xffffffff827d8a30, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff827d8a30, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f684190,0,ffff800020e1dbb8,0,0,ffff800020e1dac4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 end trace frame: 0xffff800020e1db00, count: 0 ddb{1}> trace soreceive(fffffd806f684190,0,ffff800020e1dbb8,0,0,ffff800020e1dac4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd8072df65f0,ffff800020e1dbb8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1dbb8,0,ffff800020e1dca0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1dc50,ffff800020e1dca0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1dd20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1dd20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffaac0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1daa0 rbx 0xfffffd807f01ea00 rdx 0x35838 acpi_pdirpa+0x216a0 rcx 0 rax 0xfffffd806f684190 r8 0xffffffff82321716 soreceive+0xbe6 r9 0x3 r10 0xa39ac0777cb59f5e r11 0x1980998f80e9be98 r12 0xfffffd0000000000 r13 0 r14 0x1 r15 0 rip 0xffffffff823218fd soreceive+0xdcd cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020e1d9b0 ss 0x10 soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> show proc PROC (dhclient) pid=412462 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc9c8,0xffff800020ddd398 process=0xffff800020df0010 user=0xffff800020e18000, vmspace=0xfffffd807efff2e0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82538 379521 54707 0 7 0 syz-executor.1 82538 279515 54707 0 3 0x4000080 fsleep syz-executor.1 44004 174525 56676 0 3 0x2 biowait syz-executor.0 19579 55698 0 0 3 0x14200 bored sosplice 54707 254561 56676 0 3 0x82 nanosleep syz-executor.1 56676 475253 15587 0 3 0x82 thrsleep syz-fuzzer 56676 342243 15587 0 3 0x4000082 nanosleep syz-fuzzer 56676 388445 15587 0 3 0x4000082 thrsleep syz-fuzzer 56676 269229 15587 0 3 0x4000082 thrsleep syz-fuzzer 56676 148665 15587 0 3 0x4000082 thrsleep syz-fuzzer 56676 94010 15587 0 3 0x4000082 thrsleep syz-fuzzer 56676 368890 15587 0 3 0x4000082 thrsleep syz-fuzzer 56676 419944 15587 0 3 0x4000082 thrsleep syz-fuzzer 56676 265735 15587 0 3 0x4000082 kqread syz-fuzzer 56676 435978 15587 0 3 0x4000082 thrsleep syz-fuzzer 56676 6790 15587 0 3 0x4000082 thrsleep syz-fuzzer 15587 389363 19040 0 3 0x10008a pause ksh 19040 326641 189 0 3 0x92 select sshd 34762 282466 1 0 3 0x100083 ttyin getty 189 433361 1 0 3 0x80 select sshd 35962 291843 22725 74 3 0x100092 bpf pflogd 22725 88418 1 0 3 0x80 netio pflogd 2070 392791 70943 73 3 0x100090 kqread syslogd 70943 160811 1 0 3 0x100082 netio syslogd 46214 482102 1 77 3 0x100090 poll dhclient *16496 412462 1 0 7 0 dhclient 11937 295901 0 0 3 0x14200 bored smr 70447 28518 0 0 3 0x14200 pgzero zerothread 86030 451668 0 0 3 0x14200 aiodoned aiodoned 93370 10833 0 0 3 0x14200 syncer update 40643 390400 0 0 3 0x14200 cleaner cleaner 62754 166674 0 0 3 0x14200 reaper reaper 69066 385069 0 0 3 0x14200 pgdaemon pagedaemon 24679 95931 0 0 3 0x14200 bored crynlk 21465 95320 0 0 3 0x14200 bored crypto 10332 256717 0 0 3 0x40014200 acpi0 acpi0 70202 35884 0 0 3 0x40014200 idle1 22140 99919 0 0 3 0x14200 bored softnet 28975 498128 0 0 3 0x14200 bored systqmp 57855 169014 0 0 3 0x14200 bored systq 82676 152946 0 0 3 0x40014200 bored softclock 69587 484995 0 0 3 0x40014200 idle0 1 140825 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 44004 (syz-executor.0) thread 0xffff800020e09878 (174525) Process 16496 (dhclient) thread 0xffff800020ddcc38 (412462) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9526 6428K 7121K 78643K 10919 0 pcb 13 8K 8K 78643K 171 0 rtable 111 4K 7K 78643K 446 0 ifaddr 76 14K 14K 78643K 141 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1522 0 iov 0 0K 16K 78643K 39 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1334 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 54 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 272 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 95K 78643K 507 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 20 0 in_multi 40 2K 2K 78643K 93 0 ether_multi 1 0K 0K 78643K 6 0 mrt 0 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 234 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 118 22K 38K 78643K 1842 0 UVM aobj 15 2K 2K 78643K 19 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 117 0 NDP 13 0K 0K 78643K 30 0 temp 104 3866K 3930K 78643K 3814 0 kqueue 3 4K 8K 78643K 13 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 11 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 39 0 37 1 0 1 1 0 8 0 rtentry 112 73 0 29 2 0 2 2 0 8 0 unpcb 120 171 0 159 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 747 0 747 1 1 0 1 0 8 0 tcpcb 544 310 0 305 2 1 1 2 0 8 0 inpcb 296 591 0 581 4 2 2 2 0 8 1 nd6 48 14 0 9 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 90 0 90 1 0 1 1 0 8 1 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 44 0 44 3 2 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 30 0 10 1 0 1 1 0 8 0 pfstkey 112 30 0 10 1 0 1 1 0 8 0 pfstate 328 29 0 10 2 0 2 2 0 8 0 pfrule 1360 33 0 23 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 309 0 128 13 0 13 13 0 8 1 art_table 32 310 0 128 2 0 2 2 0 8 0 art_node 16 72 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 8 1 0 1 1 0 8 0 semapl 112 52 0 42 1 0 1 1 0 8 0 shmpl 112 17 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1740 0 336 89 0 89 89 0 8 0 ffsino 272 1740 0 336 96 1 95 95 0 8 0 nchpl 144 2334 0 739 60 0 60 60 0 8 0 uvmvnodes 72 1867 0 0 34 0 34 34 0 8 0 vnodes 208 1867 0 0 99 0 99 99 0 8 0 namei 1024 6465 0 6464 4 3 1 1 0 8 0 percpumem 16 38 0 6 1 0 1 1 0 8 0 vmpool 560 2 0 2 2 1 1 1 0 8 1 pfiaddrpl 120 13 0 13 3 2 1 1 0 8 1 scxspl 192 6892 0 6891 9 8 1 7 0 8 0 plimitpl 152 34 0 26 1 0 1 1 0 8 0 sigapl 424 485 0 453 4 0 4 4 0 8 0 futexpl 56 3956 0 3955 3 2 1 1 0 8 0 knotepl 112 81 0 62 1 0 1 1 0 8 0 kqueuepl 144 31 0 29 1 0 1 1 0 8 0 pipelkpl 48 117 0 107 1 0 1 1 0 8 0 pipepl 120 234 0 215 1 0 1 1 0 8 0 fdescpl 496 469 0 453 3 0 3 3 0 8 0 filepl 152 2778 0 2673 6 1 5 5 0 8 0 lockfpl 104 28 0 27 1 0 1 1 0 8 0 lockfspl 48 11 0 10 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 220 0 211 1 0 1 1 0 8 0 zombiepl 144 453 0 453 2 1 1 1 0 8 1 processpl 984 485 0 453 6 1 5 5 0 8 0 procpl 624 1034 0 991 4 0 4 4 0 8 0 srpgc 64 3 0 3 1 0 1 1 0 8 1 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 400 807 0 783 5 2 3 4 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 181 0 0 22 0 22 22 0 8 0 mtagpl 96 24 0 0 1 0 1 1 0 8 0 mbufpl 256 307 0 0 17 0 17 17 0 8 0 bufpl 280 3895 0 133 269 0 269 269 0 8 0 anonpl 16 61047 0 45265 72 5 67 69 0 124 0 amapchunkpl 152 3013 0 2856 25 18 7 20 0 158 0 amappl16 192 1976 0 1111 46 2 44 45 0 8 0 amappl15 184 14 0 12 1 0 1 1 0 8 0 amappl14 176 25 0 20 1 0 1 1 0 8 0 amappl13 168 278 0 271 1 0 1 1 0 8 0 amappl12 160 12 0 10 1 0 1 1 0 8 0 amappl11 152 71 0 54 1 0 1 1 0 8 0 amappl10 144 16 0 12 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 366 0 336 2 0 2 2 0 8 0 amappl7 120 132 0 119 1 0 1 1 0 8 0 amappl6 112 43 0 35 1 0 1 1 0 8 0 amappl5 104 233 0 218 1 0 1 1 0 8 0 amappl4 96 637 0 606 1 0 1 1 0 8 0 amappl3 88 236 0 228 1 0 1 1 0 8 0 amappl2 80 2734 0 2663 2 0 2 2 0 8 0 amappl1 72 20738 0 20297 23 13 10 18 0 8 0 amappl 80 1300 0 1256 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 18 0 4 1 0 1 1 0 8 0 uaddrrnd 24 471 0 455 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 471 0 455 1 0 1 1 0 8 0 vmmpekpl 168 7554 0 7514 2 0 2 2 0 8 0 vmmpepl 168 64710 0 62691 145 25 120 120 0 357 29 vmsppl 368 470 0 455 2 0 2 2 0 8 0 pdppl 4096 949 0 910 8 2 6 6 0 8 1 pvpl 32 196330 0 177405 175 16 159 167 0 265 1 pmappl 232 470 0 455 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 274 0 12 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff826f8ff0) 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(ffffffff828ac5d8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828ac5d8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800023100e50,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f __mp_lock(ffffffff828ac5d8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828ac5d8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff800023101030,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800023101030) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffe06f0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> trace soreceive(fffffd806f684190,0,ffff800020e1dbb8,0,0,ffff800020e1dac4) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd8072df65f0,ffff800020e1dbb8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1dbb8,0,ffff800020e1dca0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1dc50,ffff800020e1dca0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1dd20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1dd20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffaac0, count: -6