uvm_fault(0xffffffff827de950, 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(0xffffffff827de950, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68c4b0,0,ffff800020e1eb58,0,0,ffff800020e1ea64) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68c4b0,0,ffff800020e1eb58,0,0,ffff800020e1ea64) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1eaa0, count: 0 ddb{0}> trace soreceive(fffffd806f68c4b0,0,ffff800020e1eb58,0,0,ffff800020e1ea64) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68c4b0,0,ffff800020e1eb58,0,0,ffff800020e1ea64) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8078df7260,ffff800020e1eb58,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1eb58,0,ffff800020e1ec40) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1ebf0,ffff800020e1ec40) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ecc0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ecc0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdc300, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1ea40 rbx 0xfffffd8064191900 rdx 0x6e214 acpi_pdirpa+0x5a07c rcx 0 rax 0 r8 0xffffffff8194ae91 soreceive+0x5c1 r9 0x3 r10 0x2a21404ce4664a83 r11 0xb5dacf46363c1528 r12 0xf1e r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68c4b0 rip 0xffffffff8194b9d0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1e950 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=305545 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcc38,0xffff800020ddd128 process=0xffff800020df0010 user=0xffff800020e19000, vmspace=0xfffffd807f0002e0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30549 351396 0 0 3 0x14200 bored sosplice 24719 204435 98942 0 3 0x82 piperd syz-executor.0 74970 213323 0 0 3 0x14200 acct acct 98942 51882 36479 0 3 0x82 thrsleep syz-fuzzer 98942 408045 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 51283 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 396796 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 442181 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 346037 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 33156 36479 0 2 0x4000082 syz-fuzzer 98942 307753 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 440534 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 520050 36479 0 3 0x4000082 thrsleep syz-fuzzer 98942 165988 36479 0 3 0x4000082 thrsleep syz-fuzzer 36479 6161 79474 0 3 0x10008a pause ksh 79474 495564 31783 0 3 0x92 select sshd 32644 206149 1 0 3 0x100083 ttyin getty 31783 371210 1 0 3 0x80 select sshd 34686 325818 92256 74 3 0x100092 bpf pflogd 92256 29404 1 0 3 0x80 netio pflogd 80159 452823 24135 73 3 0x100090 kqread syslogd 24135 104582 1 0 3 0x100082 netio syslogd 3615 293038 1 77 2 0x100010 dhclient *31455 305545 1 0 7 0 dhclient 33879 156735 0 0 3 0x14200 bored smr 59998 485738 0 0 2 0x14200 zerothread 18369 213321 0 0 3 0x14200 aiodoned aiodoned 13816 64803 0 0 3 0x14200 syncer update 63019 97454 0 0 3 0x14200 cleaner cleaner 52622 262785 0 0 7 0x14200 reaper 20216 187782 0 0 3 0x14200 pgdaemon pagedaemon 78296 274264 0 0 3 0x14200 bored crynlk 30502 12092 0 0 3 0x14200 bored crypto 60410 508017 0 0 3 0x40014200 acpi0 acpi0 76899 278483 0 0 3 0x40014200 idle1 1520 384808 0 0 2 0x14200 softnet 59559 270407 0 0 3 0x14200 bored systqmp 54118 256987 0 0 3 0x14200 bored systq 26602 476195 0 0 3 0x40014200 bored softclock 13200 277459 0 0 3 0x40014200 idle0 1 129548 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 31455 (dhclient) thread 0xffff800020ddc4e8 (305545) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828eb278) #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 1520 (softnet) thread 0xffff800020d88270 (384808) 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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9502 6412K 6738K 78643K 10934 0 pcb 13 8K 8K 78643K 57 0 rtable 93 5K 6K 78643K 339 0 ifaddr 60 12K 14K 78643K 103 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1515 0 iov 0 0K 16K 78643K 31 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1363 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 1K 1K 78643K 32 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 535 0 sigio 0 0K 0K 78643K 2 0 proc 62 63K 95K 78643K 503 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 18 0 in_multi 31 2K 2K 78643K 101 0 ether_multi 1 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 235 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 132 23K 23K 78643K 2600 0 UVM aobj 20 2K 2K 78643K 24 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 59 0 NDP 9 0K 0K 78643K 26 0 temp 99 3862K 3932K 78643K 9461 0 kqueue 3 4K 8K 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 9 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 74 0 41 2 0 2 2 0 8 0 unpcb 120 299 0 289 1 0 1 1 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 417 0 417 1 1 0 1 0 8 0 tcpcb 544 99 0 95 1 0 1 1 0 8 0 inpcb 296 1648 0 1641 2 0 2 2 0 8 1 nd6 48 17 0 14 1 0 1 1 0 8 0 pkpcb 40 8 0 8 1 1 0 1 0 8 0 pffrag 232 3 0 3 1 1 0 1 0 482 0 pffrnode 88 3 0 3 1 1 0 1 0 8 0 pffrent 40 49 0 49 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 11 0 7 1 0 1 1 0 8 0 pfstitem 24 15 0 4 1 0 1 1 0 8 0 pfstkey 112 15 0 4 1 0 1 1 0 8 0 pfstate 328 15 0 4 2 0 2 2 0 8 0 pfrule 1360 29 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 306 0 161 15 2 13 13 0 8 2 art_table 32 307 0 161 2 0 2 2 0 8 0 art_node 16 73 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 61 0 32 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 21 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1998 0 595 89 1 88 89 0 8 0 ffsino 272 1998 0 595 94 0 94 94 0 8 0 nchpl 144 2832 0 1237 60 0 60 60 0 8 0 uvmvnodes 72 2146 0 0 40 0 40 40 0 8 0 vnodes 208 2146 0 0 113 0 113 113 0 8 0 namei 1024 7607 0 7607 1 0 1 1 0 8 1 percpumem 16 36 0 5 1 0 1 1 0 8 0 pfiaddrpl 120 4 0 2 1 0 1 1 0 8 0 scxspl 192 8977 0 8977 8 7 1 7 0 8 1 plimitpl 152 44 0 36 1 0 1 1 0 8 0 sigapl 424 749 0 718 4 0 4 4 0 8 0 futexpl 56 7206 0 7206 1 0 1 1 0 8 1 knotepl 112 94 0 77 1 0 1 1 0 8 0 kqueuepl 144 44 0 42 1 0 1 1 0 8 0 pipepl 304 141 0 132 4 3 1 3 0 8 0 fdescpl 496 732 0 718 3 0 3 3 0 8 0 filepl 152 4426 0 4347 7 2 5 7 0 8 1 lockfpl 104 55 0 54 1 0 1 1 0 8 0 lockfspl 48 21 0 20 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 31 0 20 1 0 1 1 0 8 0 ucredpl 96 596 0 587 1 0 1 1 0 8 0 zombiepl 144 718 0 717 2 1 1 1 0 8 0 processpl 992 749 0 717 6 1 5 5 0 8 0 procpl 624 1783 0 1741 5 1 4 5 0 8 0 sockpl 400 1996 0 1977 7 3 4 5 0 8 2 mcl64k 65536 5 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 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 170 0 0 21 0 21 21 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 328 0 0 20 1 19 19 0 8 0 bufpl 280 4377 0 132 304 0 304 304 0 8 0 anonpl 16 82377 0 65130 72 1 71 71 0 124 0 amapchunkpl 152 3865 0 3726 8 1 7 8 0 158 0 amappl16 192 3206 0 2249 50 1 49 49 0 8 1 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 232 0 226 1 0 1 1 0 8 0 amappl13 168 43 0 39 1 0 1 1 0 8 0 amappl12 160 9 0 8 2 1 1 1 0 8 0 amappl11 152 62 0 47 1 0 1 1 0 8 0 amappl10 144 239 0 235 1 0 1 1 0 8 0 amappl9 136 461 0 458 1 0 1 1 0 8 0 amappl8 128 461 0 417 2 0 2 2 0 8 0 amappl7 120 343 0 330 1 0 1 1 0 8 0 amappl6 112 24 0 19 1 0 1 1 0 8 0 amappl5 104 630 0 613 1 0 1 1 0 8 0 amappl4 96 504 0 473 1 0 1 1 0 8 0 amappl3 88 314 0 308 1 0 1 1 0 8 0 amappl2 80 4839 0 4778 2 0 2 2 0 8 0 amappl1 72 30253 0 29835 23 13 10 18 0 8 0 amappl 80 2041 0 2000 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 23 0 4 1 0 1 1 0 8 0 uaddrrnd 24 732 0 718 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 732 0 718 1 0 1 1 0 8 0 vmmpekpl 168 9739 0 9704 2 0 2 2 0 8 0 vmmpepl 168 100257 0 98248 149 24 125 128 0 357 29 vmsppl 368 731 0 717 2 0 2 2 0 8 0 pdppl 4096 1471 0 1434 7 1 6 6 0 8 0 pvpl 32 265556 0 245291 175 1 174 174 0 265 4 pmappl 232 731 0 717 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 273 0 12 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f68c4b0,0,ffff800020e1eb58,0,0,ffff800020e1ea64) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68c4b0,0,ffff800020e1eb58,0,0,ffff800020e1ea64) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8078df7260,ffff800020e1eb58,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1eb58,0,ffff800020e1ec40) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1ebf0,ffff800020e1ec40) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ecc0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ecc0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdc300, 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_cmp4(c2985,c2986) at __sanitizer_cov_trace_cmp4+0x27 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(c2985,c2986) at __sanitizer_cov_trace_cmp4+0x27 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(c2985,c2986) at __sanitizer_cov_trace_cmp4+0x27 sys/dev/kcov.c:135 __mp_lock(ffffffff828eb070) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828eb070) at __mp_lock+0x139 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf1e0,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807f000450) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807f000450) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df1750) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89860) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -10