uvm_fault(0xffffffff827b26d8, 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(0xffffffff827b26d8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f67d7d0,0,ffff800020e1ec98,0,0,ffff800020e1eba4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67d7d0,0,ffff800020e1ec98,0,0,ffff800020e1eba4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1ebe0, count: 0 ddb{0}> trace soreceive(fffffd806f67d7d0,0,ffff800020e1ec98,0,0,ffff800020e1eba4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67d7d0,0,ffff800020e1ec98,0,0,ffff800020e1eba4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8076df62f8,ffff800020e1ec98,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1ec98,0,ffff800020e1ed80) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1ed30,ffff800020e1ed80) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ee00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ee00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0410, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1eb80 rbx 0xfffffd80672e6f00 rdx 0x6d15a acpi_pdirpa+0x58fc2 rcx 0 rax 0 r8 0xffffffff81a9b921 soreceive+0x5c1 r9 0x3 r10 0x50fbf0a9b199dd65 r11 0x877d97b4ea650fab r12 0x72a r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f67d7d0 rip 0xffffffff81a9c460 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1ea90 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=38637 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcea8,0xffff800020ddc9d8 process=0xffff800020df0bb0 user=0xffff800020e19000, vmspace=0xfffffd807efff000 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 7328 506540 25477 0 2 0 syz-executor.1 7328 465186 25477 0 2 0x4000000 syz-executor.1 50835 493159 0 0 3 0x14280 nfsidl nfsio 70318 81774 0 0 3 0x14280 nfsidl nfsio 38654 270445 0 0 3 0x14280 nfsidl nfsio 82341 492808 0 0 3 0x14280 nfsidl nfsio 81914 53491 0 0 3 0x14280 nfsidl nfsio 29467 17785 0 0 3 0x14280 nfsidl nfsio 40107 175990 0 0 3 0x14280 nfsidl nfsio 87604 43896 0 0 3 0x14280 nfsidl nfsio 99104 402956 0 0 3 0x14280 nfsidl nfsio 63819 202571 0 0 3 0x14280 nfsidl nfsio 36879 441400 0 0 3 0x14280 nfsidl nfsio 496 145994 0 0 3 0x14280 nfsidl nfsio 48342 74861 0 0 3 0x14280 nfsidl nfsio 87654 288218 0 0 3 0x14280 nfsidl nfsio 74465 480872 0 0 3 0x14280 nfsidl nfsio 21622 432418 0 0 3 0x14280 nfsidl nfsio 47503 332166 0 0 3 0x14280 nfsidl nfsio 94979 75837 0 0 3 0x14280 nfsidl nfsio 65142 447722 0 0 3 0x14280 nfsidl nfsio 28986 395829 0 0 3 0x14280 nfsidl nfsio 88253 55472 0 0 3 0x14200 bored sosplice 25477 364513 87537 0 2 0x482 syz-executor.1 87537 318055 99673 0 3 0x82 thrsleep syz-fuzzer 87537 198806 99673 0 3 0x4000082 nanosleep syz-fuzzer 87537 355980 99673 0 3 0x4000082 thrsleep syz-fuzzer 87537 171083 99673 0 3 0x4000082 thrsleep syz-fuzzer 87537 229974 99673 0 3 0x4000082 thrsleep syz-fuzzer 87537 91677 99673 0 3 0x4000082 thrsleep syz-fuzzer 87537 202463 99673 0 3 0x4000082 thrsleep syz-fuzzer 87537 27093 99673 0 3 0x4000082 thrsleep syz-fuzzer 87537 490934 99673 0 2 0x4000082 syz-fuzzer 87537 386469 99673 0 3 0x4000082 thrsleep syz-fuzzer 99673 443576 53935 0 3 0x10008a pause ksh 53935 260027 63823 0 3 0x92 select sshd 93717 308621 1 0 3 0x100083 ttyin getty 63823 266914 1 0 3 0x80 select sshd 35631 263857 28202 74 3 0x100092 bpf pflogd 28202 73794 1 0 3 0x80 netio pflogd 17488 341337 29496 73 3 0x100090 kqread syslogd 29496 69768 1 0 3 0x100082 netio syslogd 22970 294208 1 77 2 0x100010 dhclient *82612 38637 1 0 7 0 dhclient 47639 204180 0 0 3 0x14200 bored smr 17664 66139 0 0 2 0x14200 zerothread 35966 3808 0 0 3 0x14200 aiodoned aiodoned 31052 431964 0 0 3 0x14200 syncer update 28471 407292 0 0 3 0x14200 cleaner cleaner 20196 503384 0 0 7 0x14200 reaper 5087 347829 0 0 3 0x14200 pgdaemon pagedaemon 71869 34268 0 0 3 0x14200 bored crynlk 17689 433570 0 0 3 0x14200 bored crypto 41286 208502 0 0 3 0x40014200 acpi0 acpi0 45527 236399 0 0 3 0x40014200 idle1 40890 168828 0 0 3 0x14200 bored softnet 47332 122019 0 0 3 0x14200 bored systqmp 22071 265315 0 0 3 0x14200 bored systq 84888 387012 0 0 3 0x40014200 bored softclock 3435 104138 0 0 3 0x40014200 idle0 1 91720 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 82612 (dhclient) thread 0xffff800020ddc758 (38637) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828bf0e0) #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 9495 6406K 6728K 78643K 10887 0 pcb 13 8K 8K 78643K 85 0 rtable 94 5K 6K 78643K 303 0 ifaddr 58 13K 14K 78643K 92 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1627 0 iov 0 0K 16K 78643K 16 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1315 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 0K 1K 78643K 78 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 321 0 sigio 0 0K 0K 78643K 6 0 proc 61 63K 95K 78643K 459 0 subproc 16 1K 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 30 0 in_multi 43 2K 3K 78643K 104 0 ether_multi 1 0K 0K 78643K 12 0 mrt 0 0K 0K 78643K 7 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 212 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 127 23K 39K 78643K 1931 0 UVM aobj 20 2K 2K 78643K 20 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 46 0 NDP 8 0K 0K 78643K 21 0 temp 98 3863K 3929K 78643K 7691 0 kqueue 3 4K 10K 78643K 17 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 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 56 0 54 1 0 1 1 0 8 0 rtentry 112 66 0 34 2 0 2 2 0 8 0 unpcb 120 129 0 119 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 493 0 493 1 1 0 1 0 8 0 tcpcb 544 93 0 89 1 0 1 1 0 8 0 inpcb 296 344 0 337 3 1 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 15 0 13 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 pffrent 40 45 0 45 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 13 0 8 2 1 1 1 0 8 0 pfstitem 24 30 0 9 1 0 1 1 0 8 0 pfstkey 112 31 0 10 1 0 1 1 0 8 0 pfstate 328 31 0 10 3 0 3 3 0 8 0 pfrule 1360 27 0 18 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 307 0 153 14 1 13 14 0 8 1 art_table 32 309 0 153 2 0 2 2 0 8 0 art_node 16 65 0 35 1 0 1 1 0 8 0 sysvmsgpl 40 28 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 74 0 64 1 0 1 1 0 8 0 shmpl 112 17 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1838 0 430 89 0 89 89 0 8 0 ffsino 272 1838 0 430 96 1 95 95 0 8 0 nchpl 144 2483 0 872 60 0 60 60 0 8 0 uvmvnodes 72 1942 0 0 36 0 36 36 0 8 0 vnodes 208 1942 0 0 103 0 103 103 0 8 0 namei 1024 6724 0 6724 3 2 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 2 2 1 1 1 0 8 0 scxspl 192 7145 0 7145 9 8 1 7 0 8 1 plimitpl 152 37 0 29 1 0 1 1 0 8 0 sigapl 424 557 0 506 6 0 6 6 0 8 0 futexpl 56 4279 0 4279 2 1 1 1 0 8 1 knotepl 112 78 0 61 1 0 1 1 0 8 0 kqueuepl 144 47 0 45 1 0 1 1 0 8 0 pipepl 304 106 0 97 2 1 1 2 0 8 0 fdescpl 496 521 0 506 3 0 3 3 0 8 0 filepl 152 2753 0 2672 6 1 5 5 0 8 1 lockfpl 104 263 0 261 1 0 1 1 0 8 0 lockfspl 48 64 0 62 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 276 0 266 1 0 1 1 0 8 0 zombiepl 144 506 0 505 2 1 1 1 0 8 0 processpl 992 557 0 505 8 1 7 7 0 8 0 procpl 624 1168 0 1106 6 0 6 6 0 8 1 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 400 542 0 523 5 2 3 3 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 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 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 208 0 0 25 0 25 25 0 8 0 mtagpl 96 28 0 0 1 0 1 1 0 8 0 mbufpl 256 325 0 0 19 0 19 19 0 8 0 bufpl 280 3770 0 133 260 0 260 260 0 8 0 anonpl 16 67830 0 50664 88 2 86 86 0 124 11 amapchunkpl 152 2527 0 2370 8 1 7 8 0 158 0 amappl16 192 2585 0 1587 64 6 58 63 0 8 8 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 26 0 22 1 0 1 1 0 8 0 amappl13 168 181 0 176 1 0 1 1 0 8 0 amappl12 160 157 0 154 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 22 0 17 1 0 1 1 0 8 0 amappl9 136 392 0 391 1 0 1 1 0 8 0 amappl8 128 357 0 324 2 0 2 2 0 8 0 amappl7 120 126 0 114 1 0 1 1 0 8 0 amappl6 112 25 0 20 1 0 1 1 0 8 0 amappl5 104 269 0 253 1 0 1 1 0 8 0 amappl4 96 646 0 614 1 0 1 1 0 8 0 amappl3 88 260 0 253 1 0 1 1 0 8 0 amappl2 80 3225 0 3151 2 0 2 2 0 8 0 amappl1 72 24034 0 23581 23 13 10 18 0 8 0 amappl 80 1405 0 1359 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 19 0 0 1 0 1 1 0 8 0 uaddrrnd 24 523 0 508 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 523 0 508 1 0 1 1 0 8 0 vmmpekpl 168 7546 0 7506 3 0 3 3 0 8 0 vmmpepl 168 73622 0 71449 128 17 111 115 0 357 14 vmsppl 368 522 0 507 2 0 2 2 0 8 0 pdppl 4096 1053 0 1014 8 2 6 6 0 8 1 pvpl 32 211754 0 191399 205 2 203 203 0 265 29 pmappl 232 522 0 507 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 281 0 11 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f67d7d0,0,ffff800020e1ec98,0,0,ffff800020e1eba4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67d7d0,0,ffff800020e1ec98,0,0,ffff800020e1eba4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8076df62f8,ffff800020e1ec98,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1ec98,0,ffff800020e1ed80) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1ed30,ffff800020e1ed80) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ee00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ee00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0410, 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4f kd_curproc sys/dev/kcov.c:416 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4f sys/dev/kcov.c:79 uvm_unmap_detach(ffff800020dcee50,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efffcf0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efffcf0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff8000fffffb38) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89380) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -9