uvm_fault(0xffffffff827b1fb8, 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(0xffffffff827b1fb8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68f190,0,ffff800020e1de28,0,0,ffff800020e1dd34) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68f190,0,ffff800020e1de28,0,0,ffff800020e1dd34) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1dd70, count: 0 ddb{1}> trace soreceive(fffffd806f68f190,0,ffff800020e1de28,0,0,ffff800020e1dd34) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68f190,0,ffff800020e1de28,0,0,ffff800020e1dd34) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8072bf6428,ffff800020e1de28,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1de28,0,ffff800020e1df10) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1dec0,ffff800020e1df10) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1df90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1df90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe2410, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1dd10 rbx 0xfffffd80669b9500 rdx 0x3ad3e acpi_pdirpa+0x26ba6 rcx 0 rax 0 r8 0xffffffff816de791 soreceive+0x5c1 r9 0x3 r10 0x978c21c6cd5f63f3 r11 0xe66c3d2d4dd26ad2 r12 0x95a r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68f190 rip 0xffffffff816df2d0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1dc20 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=286604 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd5f8,0xffff800020ddc768 process=0xffff800020df0bb0 user=0xffff800020e19000, vmspace=0xfffffd807efff170 estcpu=0, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 95229 368220 0 0 3 0x14280 nfsidl nfsio 30814 309605 0 0 3 0x14280 nfsidl nfsio 26539 31526 0 0 3 0x14280 nfsidl nfsio 30237 501130 0 0 3 0x14280 nfsidl nfsio 11386 199893 0 0 3 0x14280 nfsidl nfsio 48883 31674 0 0 3 0x14280 nfsidl nfsio 26934 126990 0 0 3 0x14280 nfsidl nfsio 57740 199246 0 0 3 0x14280 nfsidl nfsio 79711 360481 0 0 3 0x14280 nfsidl nfsio 80488 187281 0 0 3 0x14280 nfsidl nfsio 46365 520004 0 0 3 0x14280 nfsidl nfsio 55525 398108 0 0 3 0x14280 nfsidl nfsio 20795 437657 0 0 3 0x14280 nfsidl nfsio 69843 440653 0 0 3 0x14280 nfsidl nfsio 25313 212192 0 0 3 0x14280 nfsidl nfsio 23802 256604 0 0 3 0x14280 nfsidl nfsio 20339 161116 0 0 3 0x14280 nfsidl nfsio 19146 275515 0 0 3 0x14280 nfsidl nfsio 60690 369093 0 0 3 0x14280 nfsidl nfsio 35194 168298 0 0 3 0x14280 nfsidl nfsio 92015 184225 0 0 3 0x14200 bored sosplice 82510 319974 85913 0 3 0x82 piperd syz-executor.1 85913 236556 20281 0 3 0x82 thrsleep syz-fuzzer 85913 37381 20281 0 2 0x4000002 syz-fuzzer 85913 46380 20281 0 3 0x4000082 thrsleep syz-fuzzer 85913 429304 20281 0 3 0x4000082 thrsleep syz-fuzzer 85913 243976 20281 0 2 0x4000082 syz-fuzzer 85913 289050 20281 0 3 0x4000082 thrsleep syz-fuzzer 85913 508515 20281 0 3 0x4000082 thrsleep syz-fuzzer 85913 465101 20281 0 3 0x4000082 thrsleep syz-fuzzer 85913 138150 20281 0 2 0x4000002 syz-fuzzer 85913 85744 20281 0 3 0x4000082 thrsleep syz-fuzzer 20281 269859 12088 0 3 0x10008a pause ksh 12088 463831 38756 0 3 0x92 select sshd 2444 280496 1 0 3 0x100083 ttyin getty 38756 1831 1 0 3 0x80 select sshd 70442 289509 7695 74 3 0x100092 bpf pflogd 7695 303509 1 0 3 0x80 netio pflogd 52445 68268 6024 73 3 0x100090 kqread syslogd 6024 60096 1 0 3 0x100082 netio syslogd 29734 14082 1 77 3 0x100090 poll dhclient *69416 286604 1 0 7 0 dhclient 45680 368072 0 0 3 0x14200 bored smr 43907 316330 0 0 2 0x14200 zerothread 61818 208191 0 0 3 0x14200 aiodoned aiodoned 82811 248443 0 0 3 0x14200 syncer update 43841 507850 0 0 3 0x14200 cleaner cleaner 68245 508164 0 0 7 0x14200 reaper 19347 127259 0 0 3 0x14200 pgdaemon pagedaemon 99599 72420 0 0 3 0x14200 bored crynlk 17754 108243 0 0 3 0x14200 bored crypto 60193 521474 0 0 3 0x40014200 acpi0 acpi0 63182 88207 0 0 3 0x40014200 idle1 51037 383215 0 0 2 0x14200 softnet 69373 194761 0 0 3 0x14200 bored systqmp 51866 373076 0 0 3 0x14200 bored systq 89061 131832 0 0 3 0x40014200 bored softclock 74401 354294 0 0 3 0x40014200 idle0 1 20393 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 69416 (dhclient) thread 0xffff800020ddc4e8 (286604) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff829062a8) #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 51037 (softnet) thread 0xffff800020d889c0 (383215) 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 9529 6419K 6682K 78643K 11038 0 pcb 13 8K 8K 78643K 55 0 rtable 94 5K 6K 78643K 315 0 ifaddr 71 13K 15K 78643K 108 0 counters 41 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1739 0 iov 0 0K 16K 78643K 943 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1369 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 59 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 611 0 sigio 0 0K 0K 78643K 4 0 proc 62 63K 95K 78643K 471 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 65 0 in_multi 31 2K 2K 78643K 89 0 ether_multi 1 0K 0K 78643K 5 0 mrt 0 0K 0K 78643K 4 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 243 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 126 23K 32K 78643K 2826 0 UVM aobj 17 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 34 0 NDP 13 0K 0K 78643K 24 0 temp 126 3874K 3942K 78643K 10528 0 kqueue 3 4K 10K 78643K 27 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 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 48 0 46 1 0 1 1 0 8 0 rtentry 112 56 0 22 2 0 2 2 0 8 0 unpcb 120 167 0 157 1 0 1 1 0 8 0 syncache 264 10 0 10 3 3 0 1 0 8 0 sackhl 24 2 0 2 1 0 1 1 0 8 1 tcpqe 32 64 0 64 1 1 0 1 0 8 0 tcpcb 544 136 0 132 1 0 1 1 0 8 0 inpcb 296 338 0 330 3 2 1 2 0 8 0 rttmr 72 2 0 1 1 0 1 1 0 8 0 nd6 48 16 0 13 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 pffrag 232 4 0 3 2 1 1 1 0 482 0 pffrnode 88 4 0 3 2 1 1 1 0 8 0 pffrent 40 50 0 49 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 21 0 17 1 0 1 1 0 8 0 pfstitem 24 13 0 5 1 0 1 1 0 8 0 pfstkey 112 13 0 5 1 0 1 1 0 8 0 pfstate 328 13 0 5 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 256 213 0 44 14 0 14 14 0 8 2 art_table 32 214 0 44 2 0 2 2 0 8 0 art_node 16 55 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 7 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 50 0 40 1 0 1 1 0 8 0 shmpl 112 15 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2147 0 746 89 0 89 89 0 8 0 ffsino 272 2147 0 746 95 0 95 95 0 8 0 nchpl 144 3587 0 1988 61 1 60 61 0 8 0 uvmvnodes 72 2290 0 0 42 0 42 42 0 8 0 vnodes 208 2290 0 0 121 0 121 121 0 8 0 namei 1024 9390 0 9390 2 1 1 1 0 8 1 percpumem 16 34 0 3 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 6 1 0 1 1 0 8 0 scxspl 192 9372 0 9372 6 5 1 5 0 8 1 plimitpl 152 34 0 26 1 0 1 1 0 8 0 sigapl 424 847 0 797 6 0 6 6 0 8 0 futexpl 56 6683 0 6683 2 1 1 1 0 8 1 knotepl 112 90 0 73 1 0 1 1 0 8 0 kqueuepl 144 44 0 42 1 0 1 1 0 8 0 pipepl 304 158 0 149 3 2 1 2 0 8 0 fdescpl 496 811 0 797 3 0 3 3 0 8 0 filepl 152 4433 0 4354 5 0 5 5 0 8 1 lockfpl 104 87 0 86 1 0 1 1 0 8 0 lockfspl 48 32 0 31 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 261 0 252 1 0 1 1 0 8 0 zombiepl 144 797 0 796 1 0 1 1 0 8 0 processpl 992 847 0 796 7 0 7 7 0 8 0 procpl 624 2060 0 2000 6 0 6 6 0 8 1 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 557 0 538 4 1 3 3 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 171 0 0 21 0 21 21 0 8 0 mtagpl 96 20 0 0 1 0 1 1 0 8 0 mbufpl 256 273 0 0 16 0 16 16 0 8 0 bufpl 280 4326 0 139 300 0 300 300 0 8 0 anonpl 16 77968 0 62045 75 10 65 72 0 124 0 amapchunkpl 152 4307 0 4161 11 4 7 11 0 158 0 amappl16 192 2843 0 1993 44 1 43 43 0 8 0 amappl15 184 305 0 303 1 0 1 1 0 8 0 amappl14 176 300 0 294 1 0 1 1 0 8 0 amappl13 168 30 0 26 1 0 1 1 0 8 0 amappl12 160 7 0 3 1 0 1 1 0 8 0 amappl11 152 328 0 312 1 0 1 1 0 8 0 amappl10 144 319 0 314 1 0 1 1 0 8 0 amappl9 136 388 0 387 1 0 1 1 0 8 0 amappl8 128 363 0 327 2 0 2 2 0 8 0 amappl7 120 421 0 409 1 0 1 1 0 8 0 amappl6 112 21 0 20 2 1 1 1 0 8 0 amappl5 104 438 0 421 1 0 1 1 0 8 0 amappl4 96 771 0 742 1 0 1 1 0 8 0 amappl3 88 401 0 395 1 0 1 1 0 8 0 amappl2 80 5546 0 5483 2 0 2 2 0 8 0 amappl1 72 26463 0 26029 24 14 10 18 0 8 0 amappl 80 2298 0 2253 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 17 0 1 1 0 1 1 0 8 0 uaddrrnd 24 811 0 797 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 811 0 797 1 0 1 1 0 8 0 vmmpekpl 168 9816 0 9773 2 0 2 2 0 8 0 vmmpepl 168 104842 0 102926 125 30 95 115 0 357 3 vmsppl 368 810 0 796 2 0 2 2 0 8 0 pdppl 4096 1629 0 1592 6 0 6 6 0 8 0 pvpl 32 250787 0 231786 174 16 158 174 0 265 2 pmappl 232 810 0 796 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 269 0 5 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(ffffffff826f9ff0) 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(ac1e4,ac1e5) at __sanitizer_cov_trace_cmp4+0x44 kd_curproc sys/dev/kcov.c:411 [inline] __sanitizer_cov_trace_cmp4(ac1e4,ac1e5) at __sanitizer_cov_trace_cmp4+0x44 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(ac1e4,ac1e5) at __sanitizer_cov_trace_cmp4+0x44 sys/dev/kcov.c:135 __mp_lock(ffffffff829060a0) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829060a0) at __mp_lock+0x139 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff829060a0) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829060a0) at __mp_lock+0x12e sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcef00,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efffb80) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efffb80) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df03f0) 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: -13 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f68f190,0,ffff800020e1de28,0,0,ffff800020e1dd34) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68f190,0,ffff800020e1de28,0,0,ffff800020e1dd34) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8072bf6428,ffff800020e1de28,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1de28,0,ffff800020e1df10) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1dec0,ffff800020e1df10) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1df90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1df90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe2410, count: -6