uvm_fault(0xffffffff828805c8, 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(0xffffffff828805c8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f6854b0,0,ffff800020e1e158,0,0,ffff800020e1e064) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6854b0,0,ffff800020e1e158,0,0,ffff800020e1e064) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1e0a0, count: 0 ddb{1}> trace soreceive(fffffd806f6854b0,0,ffff800020e1e158,0,0,ffff800020e1e064) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6854b0,0,ffff800020e1e158,0,0,ffff800020e1e064) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80753f6428,ffff800020e1e158,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1e158,0,ffff800020e1e240) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1e1f0,ffff800020e1e240) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e2c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e2c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeab30, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1e040 rbx 0xfffffd806f34d400 rdx 0x31f98 acpi_pdirpa+0x1de00 rcx 0 rax 0 r8 0xffffffff81371161 soreceive+0x5c1 r9 0x3 r10 0xf2374bd6bff33d7c r11 0xa4e78ccdf2d44e17 r12 0x95a r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f6854b0 rip 0xffffffff81371ca0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1df50 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=127269 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcea8,0xffff800020ddcc48 process=0xffff800020df03f0 user=0xffff800020e19000, 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 75817 388497 97742 0 3 0x80 nanosleep syz-executor.1 75817 16582 97742 0 3 0x4000080 msgwait syz-executor.1 75817 131240 97742 0 3 0x4000080 fsleep syz-executor.1 97742 9119 25176 0 3 0x82 nanosleep syz-executor.1 23358 65697 0 0 3 0x14280 nfsidl nfsio 69095 358655 0 0 3 0x14280 nfsidl nfsio 57566 280378 0 0 3 0x14280 nfsidl nfsio 18201 183353 0 0 3 0x14280 nfsidl nfsio 40203 226078 0 0 3 0x14280 nfsidl nfsio 14288 390714 0 0 3 0x14280 nfsidl nfsio 8566 437158 0 0 3 0x14280 nfsidl nfsio 48958 509191 0 0 3 0x14280 nfsidl nfsio 80291 96215 0 0 3 0x14280 nfsidl nfsio 99992 419341 0 0 3 0x14280 nfsidl nfsio 27193 360868 0 0 3 0x14280 nfsidl nfsio 2453 126166 0 0 3 0x14280 nfsidl nfsio 29017 463639 0 0 3 0x14280 nfsidl nfsio 32085 102426 0 0 3 0x14280 nfsidl nfsio 4875 275638 0 0 3 0x14280 nfsidl nfsio 42560 442347 0 0 3 0x14280 nfsidl nfsio 28351 396013 0 0 3 0x14280 nfsidl nfsio 16917 446952 0 0 3 0x14280 nfsidl nfsio 67483 294020 0 0 3 0x14280 nfsidl nfsio 15693 252119 0 0 3 0x14280 nfsidl nfsio 81471 413609 0 0 3 0x14200 bored sosplice 25176 201557 15201 0 3 0x82 thrsleep syz-fuzzer 25176 3059 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 421608 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 254104 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 202843 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 432597 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 167043 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 247350 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 273696 15201 0 3 0x4000082 thrsleep syz-fuzzer 25176 275226 15201 0 2 0x4000082 syz-fuzzer 15201 365569 52073 0 3 0x10008a pause ksh 52073 252439 1535 0 3 0x92 select sshd 36711 263444 1 0 3 0x100083 ttyin getty 1535 133288 1 0 3 0x80 select sshd 85145 305693 77898 74 3 0x100092 bpf pflogd 77898 33772 1 0 3 0x80 netio pflogd 11532 83878 3624 73 3 0x100090 kqread syslogd 3624 483025 1 0 3 0x100082 netio syslogd 43665 366547 1 77 2 0x100010 dhclient *76698 127269 1 0 7 0 dhclient 2248 284571 0 0 3 0x14200 bored smr 43706 4973 0 0 2 0x14200 zerothread 76049 366 0 0 3 0x14200 aiodoned aiodoned 17309 414715 0 0 3 0x14200 syncer update 51150 389000 0 0 3 0x14200 cleaner cleaner 43742 28909 0 0 7 0x14200 reaper 89992 281104 0 0 3 0x14200 pgdaemon pagedaemon 3919 424493 0 0 3 0x14200 bored crynlk 5348 243157 0 0 3 0x14200 bored crypto 38872 355931 0 0 3 0x40014200 acpi0 acpi0 47580 409636 0 0 3 0x40014200 idle1 76310 516833 0 0 2 0x14200 softnet 25033 362133 0 0 3 0x14200 bored systqmp 77933 521581 0 0 3 0x14200 bored systq 72355 421282 0 0 3 0x40014200 bored softclock 13302 392680 0 0 3 0x40014200 idle0 1 295821 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 76698 (dhclient) thread 0xffff800020ddc758 (127269) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828f5de0) #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 76310 (softnet) thread 0xffff800020d889c0 (516833) 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 9514 6422K 6674K 78643K 10858 0 pcb 13 8K 8K 78643K 49 0 rtable 84 6K 7K 78643K 337 0 ifaddr 71 14K 16K 78643K 120 0 counters 41 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1505 0 iov 0 0K 24K 78643K 42 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1324 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 19 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 268 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 95K 78643K 500 0 subproc 16 1K 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 22 0 in_multi 44 2K 3K 78643K 93 0 ether_multi 1 0K 0K 78643K 3 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 237 0 pfkey data 0 0K 1K 78643K 2 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 112 22K 22K 78643K 1782 0 UVM aobj 13 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 23 0 NDP 11 0K 0K 78643K 25 0 temp 94 3859K 3935K 78643K 7329 0 kqueue 3 4K 6K 78643K 6 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 8 0 4 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 65 0 40 2 0 2 2 0 8 0 unpcb 120 131 0 121 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 170 0 170 1 1 0 1 0 8 0 tcpcb 544 88 0 84 2 0 2 2 0 8 1 inpcb 296 586 0 579 3 1 2 2 0 8 1 nd6 48 13 0 10 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 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 90 0 90 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 23 0 15 1 0 1 1 0 8 0 pfstitem 24 27 0 13 1 0 1 1 0 8 0 pfstkey 112 27 0 13 1 0 1 1 0 8 0 pfstate 328 27 0 13 2 0 2 2 0 8 0 pfrule 1360 26 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 318 0 184 13 1 12 13 0 8 1 art_table 32 319 0 184 2 0 2 2 0 8 0 art_node 16 64 0 44 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 10 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1718 0 313 89 1 88 89 0 8 0 ffsino 272 1718 0 313 95 0 95 95 0 8 0 nchpl 144 2239 0 642 60 0 60 60 0 8 0 uvmvnodes 72 1836 0 0 34 0 34 34 0 8 0 vnodes 208 1836 0 0 97 0 97 97 0 8 0 namei 1024 6052 0 6052 1 0 1 1 0 8 1 percpumem 16 35 0 4 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 1 0 1 0 8 0 pfiaddrpl 120 8 0 4 1 0 1 1 0 8 0 scxspl 192 7089 0 7089 10 7 3 7 0 8 3 plimitpl 152 32 0 24 1 0 1 1 0 8 0 sigapl 424 501 0 450 6 0 6 6 0 8 0 futexpl 56 3230 0 3229 2 1 1 1 0 8 0 knotepl 112 79 0 62 1 0 1 1 0 8 0 kqueuepl 144 36 0 34 1 0 1 1 0 8 0 pipepl 304 105 0 96 1 0 1 1 0 8 0 fdescpl 496 465 0 450 3 0 3 3 0 8 0 filepl 152 2587 0 2504 6 1 5 5 0 8 1 lockfpl 104 36 0 35 1 0 1 1 0 8 0 lockfspl 48 13 0 12 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 96 209 0 199 1 0 1 1 0 8 0 zombiepl 144 450 0 449 1 0 1 1 0 8 0 processpl 992 501 0 449 7 0 7 7 0 8 0 procpl 624 1000 0 937 6 0 6 6 0 8 1 sosppl 128 3 0 3 2 1 1 1 0 8 1 sockpl 400 751 0 732 6 2 4 4 0 8 2 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 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 188 0 0 23 0 23 23 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 290 0 0 18 1 17 17 0 8 0 bufpl 280 4160 0 150 287 0 287 287 0 8 0 anonpl 16 66483 0 49852 94 12 82 82 0 124 13 amapchunkpl 152 2396 0 2246 9 1 8 9 0 158 0 amappl16 192 2470 0 1556 65 11 54 58 0 8 8 amappl15 184 9 0 8 2 1 1 1 0 8 0 amappl14 176 85 0 79 1 0 1 1 0 8 0 amappl13 168 44 0 41 1 0 1 1 0 8 0 amappl12 160 7 0 7 2 2 0 1 0 8 0 amappl11 152 61 0 46 1 0 1 1 0 8 0 amappl10 144 61 0 55 1 0 1 1 0 8 0 amappl9 136 514 0 511 1 0 1 1 0 8 0 amappl8 128 468 0 442 1 0 1 1 0 8 0 amappl7 120 163 0 152 1 0 1 1 0 8 0 amappl6 112 23 0 18 2 1 1 1 0 8 0 amappl5 104 339 0 323 1 0 1 1 0 8 0 amappl4 96 502 0 475 1 0 1 1 0 8 0 amappl3 88 156 0 150 1 0 1 1 0 8 0 amappl2 80 2549 0 2479 2 0 2 2 0 8 0 amappl1 72 19912 0 19462 23 13 10 18 0 8 0 amappl 80 1243 0 1199 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 0 1 0 1 1 0 8 0 uaddrrnd 24 467 0 452 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 467 0 452 1 0 1 1 0 8 0 vmmpekpl 168 7695 0 7656 2 0 2 2 0 8 0 vmmpepl 168 64783 0 62719 134 33 101 125 0 357 9 vmsppl 368 466 0 451 2 0 2 2 0 8 0 pdppl 4096 941 0 902 8 2 6 6 0 8 1 pvpl 32 201381 0 181580 212 17 195 197 0 265 31 pmappl 232 466 0 451 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 275 0 10 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(ffffffff82701ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x14 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x14 sys/dev/kcov.c:79 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828f5bd8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828f5bd8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf8d0,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efffa10) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efffa10) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df1750) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d88ea0) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f6854b0,0,ffff800020e1e158,0,0,ffff800020e1e064) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6854b0,0,ffff800020e1e158,0,0,ffff800020e1e064) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80753f6428,ffff800020e1e158,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1e158,0,ffff800020e1e240) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1e1f0,ffff800020e1e240) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e2c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e2c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeab30, count: -6