uvm_fault(0xffffffff827e91b8, 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(0xffffffff827e91b8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f686320,0,ffff800020e1d7b8,0,0,ffff800020e1d6c4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f686320,0,ffff800020e1d7b8,0,0,ffff800020e1d6c4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d700, count: 0 ddb{1}> trace soreceive(fffffd806f686320,0,ffff800020e1d7b8,0,0,ffff800020e1d6c4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f686320,0,ffff800020e1d7b8,0,0,ffff800020e1d6c4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807a7f6130,ffff800020e1d7b8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc9c8,6,ffff800020e1d7b8,0,ffff800020e1d8a0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc9c8,ffff800020e1d850,ffff800020e1d8a0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d920) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d920) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdf7a0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d6a0 rbx 0xfffffd806600f300 rdx 0x2fc6a acpi_pdirpa+0x1bad2 rcx 0 rax 0 r8 0xffffffff814e17d1 soreceive+0x5c1 r9 0x3 r10 0xc226ad9c93412bc8 r11 0x3da9207e0460e8e5 r12 0x752 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f686320 rip 0xffffffff814e2310 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d5b0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=101103 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcc38,0xffff800020ddd398 process=0xffff800020df0f70 user=0xffff800020e18000, vmspace=0xfffffd807efff000 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 28941 219972 16931 0 3 0x80 nanosleep syz-executor.0 28941 301092 16931 0 2 0x4000000 syz-executor.0 28941 192655 16931 0 3 0x4000080 fsleep syz-executor.0 16931 269536 81219 0 3 0x82 nanosleep syz-executor.0 35721 399727 81219 0 3 0x82 piperd syz-executor.1 50324 338521 0 0 3 0x14280 nfsidl nfsio 43993 447674 0 0 3 0x14280 nfsidl nfsio 70776 474102 0 0 3 0x14280 nfsidl nfsio 76427 400176 0 0 3 0x14280 nfsidl nfsio 1259 92953 0 0 3 0x14280 nfsidl nfsio 57147 254126 0 0 3 0x14280 nfsidl nfsio 78686 506901 0 0 3 0x14280 nfsidl nfsio 29213 455966 0 0 3 0x14280 nfsidl nfsio 67017 497232 0 0 3 0x14280 nfsidl nfsio 57746 59648 0 0 3 0x14280 nfsidl nfsio 18836 471557 0 0 3 0x14280 nfsidl nfsio 79160 436817 0 0 3 0x14280 nfsidl nfsio 6622 217089 0 0 3 0x14280 nfsidl nfsio 89819 177620 0 0 3 0x14280 nfsidl nfsio 68920 75376 0 0 3 0x14280 nfsidl nfsio 98466 94087 0 0 3 0x14280 nfsidl nfsio 31956 19954 0 0 3 0x14280 nfsidl nfsio 89775 500713 0 0 3 0x14280 nfsidl nfsio 43815 91282 0 0 3 0x14280 nfsidl nfsio 52841 345265 0 0 3 0x14280 nfsidl nfsio 42298 173473 0 0 3 0x14200 bored sosplice 81219 173545 27577 0 3 0x82 thrsleep syz-fuzzer 81219 51900 27577 0 3 0x4000082 nanosleep syz-fuzzer 81219 265812 27577 0 3 0x4000082 thrsleep syz-fuzzer 81219 523317 27577 0 3 0x4000082 thrsleep syz-fuzzer 81219 222746 27577 0 3 0x4000082 thrsleep syz-fuzzer 81219 325385 27577 0 7 0x4000002 syz-fuzzer 81219 476875 27577 0 3 0x4000082 thrsleep syz-fuzzer 81219 391121 27577 0 3 0x4000082 thrsleep syz-fuzzer 81219 147427 27577 0 3 0x4000082 thrsleep syz-fuzzer 81219 84404 27577 0 3 0x4000082 kqread syz-fuzzer 81219 271749 27577 0 3 0x4000082 thrsleep syz-fuzzer 27577 152348 89298 0 3 0x10008a pause ksh 89298 147522 60828 0 3 0x92 select sshd 59200 319729 1 0 3 0x100083 ttyin getty 60828 325171 1 0 3 0x80 select sshd 75913 91464 70317 74 3 0x100092 bpf pflogd 70317 379538 1 0 3 0x80 netio pflogd 16209 103658 88101 73 3 0x100090 kqread syslogd 88101 122624 1 0 3 0x100082 netio syslogd 92843 263886 1 77 3 0x100090 poll dhclient *74665 101103 1 0 7 0 dhclient 33876 463824 0 0 3 0x14200 bored smr 86573 356675 0 0 3 0x14200 pgzero zerothread 18361 386783 0 0 3 0x14200 aiodoned aiodoned 81077 327943 0 0 3 0x14200 syncer update 84834 290984 0 0 3 0x14200 cleaner cleaner 21820 438212 0 0 3 0x14200 reaper reaper 12709 200951 0 0 3 0x14200 pgdaemon pagedaemon 21019 239159 0 0 3 0x14200 bored crynlk 62767 364372 0 0 3 0x14200 bored crypto 48325 454757 0 0 3 0x40014200 acpi0 acpi0 87034 350492 0 0 3 0x40014200 idle1 799 224405 0 0 3 0x14200 tqbarend softnet 91426 448291 0 0 3 0x14200 bored systqmp 58367 187945 0 0 3 0x14200 bored systq 88297 387146 0 0 3 0x40014200 bored softclock 98390 233875 0 0 3 0x40014200 idle0 1 439541 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 74665 (dhclient) thread 0xffff800020ddc9c8 (101103) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8291b2d8) #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 Process 799 (softnet) thread 0xffff800020d88270 (224405) shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9515 6422K 6807K 78643K 11010 0 pcb 13 8K 8K 78643K 89 0 rtable 94 5K 9K 78643K 565 0 ifaddr 59 12K 14K 78643K 165 0 counters 41 33K 34K 78643K 67 0 ioctlops 0 0K 4K 78643K 1540 0 iov 0 0K 16K 78643K 47 0 mount 1 1K 1K 78643K 1 0 vnodes 1234 78K 78K 78643K 1523 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 69 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 578 0 sigio 0 0K 0K 78643K 14 0 proc 65 63K 83K 78643K 696 0 subproc 32 2K 3K 78643K 170 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 21 0 in_multi 73 4K 4K 78643K 163 0 ether_multi 1 0K 0K 78643K 7 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 1K 78643K 313 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 113 22K 31K 78643K 2626 0 UVM aobj 10 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 43 0 NDP 10 0K 0K 78643K 40 0 temp 112 3865K 3929K 78643K 11454 0 kqueue 3 4K 12K 78643K 14 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 17 0 13 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 51 0 49 1 0 1 1 0 8 0 rtentry 112 111 0 78 2 0 2 2 0 8 0 unpcb 120 297 0 285 1 0 1 1 0 8 0 syncache 264 8 0 8 3 3 0 1 0 8 0 tcpqe 32 635 0 635 1 1 0 1 0 8 0 tcpcb 544 159 0 155 1 0 1 1 0 8 0 inpcb 296 500 0 493 8 7 1 2 0 8 0 nd6 48 29 0 26 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 1 2 1 1 1 0 482 0 pffrnode 88 2 0 1 2 1 1 1 0 8 0 pffrent 40 4 0 3 2 1 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 35 0 31 1 0 1 1 0 8 0 pfstitem 24 16 0 14 1 0 1 1 0 8 0 pfstkey 112 16 0 14 1 0 1 1 0 8 0 pfstate 328 16 0 14 1 0 1 1 0 8 0 pfrule 1360 33 0 21 3 2 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 461 0 314 17 5 12 14 0 8 1 art_table 32 462 0 314 2 0 2 2 0 8 0 art_node 16 110 0 80 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 12 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 65 0 55 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2151 0 748 89 0 89 89 0 8 0 ffsino 272 2151 0 748 97 2 95 95 0 8 0 nchpl 144 3084 0 1489 60 0 60 60 0 8 0 uvmvnodes 72 2430 0 0 45 0 45 45 0 8 0 vnodes 208 2430 0 0 128 0 128 128 0 8 0 namei 1024 9476 0 9476 9 8 1 1 0 8 1 percpumem 16 44 0 13 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 1 0 1 0 8 0 pfiaddrpl 120 13 0 8 1 0 1 1 0 8 0 scxspl 192 8947 0 8947 11 10 1 7 0 8 1 plimitpl 152 39 0 31 1 0 1 1 0 8 0 sigapl 424 792 0 740 7 1 6 7 0 8 0 futexpl 56 5841 0 5840 9 8 1 1 0 8 0 knotepl 112 174 0 155 1 0 1 1 0 8 0 kqueuepl 144 36 0 33 1 0 1 1 0 8 0 pipepl 304 168 0 158 4 3 1 2 0 8 0 fdescpl 496 754 0 738 3 0 3 3 0 8 0 filepl 152 4344 0 4242 9 4 5 6 0 8 1 lockfpl 104 55 0 54 1 0 1 1 0 8 0 lockfspl 48 20 0 19 1 0 1 1 0 8 0 sessionpl 112 26 0 15 1 0 1 1 0 8 0 pgrppl 48 30 0 19 1 0 1 1 0 8 0 ucredpl 96 677 0 667 1 0 1 1 0 8 0 zombiepl 144 740 0 740 2 1 1 1 0 8 1 processpl 984 792 0 740 8 1 7 7 0 8 0 procpl 624 1633 0 1569 10 4 6 6 0 8 1 srpgc 64 2 0 2 1 0 1 1 0 8 1 sosppl 128 5 0 5 2 2 0 1 0 8 0 sockpl 400 848 0 827 17 14 3 4 0 8 0 mcl64k 65536 259 0 0 33 1 32 33 0 8 1 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 220 0 0 25 0 25 25 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 535 0 0 24 0 24 24 0 8 0 bufpl 280 4209 0 137 291 0 291 291 0 8 0 anonpl 16 92995 0 77393 81 5 76 80 0 124 12 amapchunkpl 152 4485 0 4341 13 6 7 11 0 158 0 amappl16 192 3252 0 2403 68 21 47 55 0 8 4 amappl15 184 9 0 8 1 0 1 1 0 8 0 amappl14 176 77 0 71 1 0 1 1 0 8 0 amappl13 168 210 0 203 1 0 1 1 0 8 0 amappl12 160 66 0 62 1 0 1 1 0 8 0 amappl11 152 73 0 58 1 0 1 1 0 8 0 amappl10 144 151 0 145 1 0 1 1 0 8 0 amappl9 136 503 0 502 1 0 1 1 0 8 0 amappl8 128 590 0 557 2 0 2 2 0 8 0 amappl7 120 214 0 198 1 0 1 1 0 8 0 amappl6 112 27 0 23 1 0 1 1 0 8 0 amappl5 104 481 0 465 1 0 1 1 0 8 0 amappl4 96 632 0 601 1 0 1 1 0 8 0 amappl3 88 194 0 186 1 0 1 1 0 8 0 amappl2 80 4205 0 4134 2 0 2 2 0 8 0 amappl1 72 25672 0 25222 23 13 10 18 0 8 0 amappl 80 1963 0 1916 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 756 0 740 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 756 0 740 1 0 1 1 0 8 0 vmmpekpl 168 9427 0 9389 2 0 2 2 0 8 0 vmmpepl 168 100225 0 98211 211 117 94 125 0 357 1 vmsppl 368 755 0 740 2 0 2 2 0 8 0 pdppl 4096 1519 0 1480 9 4 5 6 0 8 0 pvpl 32 273728 0 254838 206 16 190 194 0 265 37 pmappl 232 755 0 740 4 3 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 345 0 42 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(ffffffff827a4ff0) 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(ffffffff8291b0d0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8291b0d0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0xc001c80c10, count: -6 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f686320,0,ffff800020e1d7b8,0,0,ffff800020e1d6c4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f686320,0,ffff800020e1d7b8,0,0,ffff800020e1d6c4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807a7f6130,ffff800020e1d7b8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc9c8,6,ffff800020e1d7b8,0,ffff800020e1d8a0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc9c8,ffff800020e1d850,ffff800020e1d8a0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d920) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d920) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdf7a0, count: -6