uvm_fault(0xffffffff827b1ca0, 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(0xffffffff827b1ca0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f6814b0,0,ffff800020e1d3c8,0,0,ffff800020e1d2d4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6814b0,0,ffff800020e1d3c8,0,0,ffff800020e1d2d4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d310, count: 0 ddb{1}> trace soreceive(fffffd806f6814b0,0,ffff800020e1d3c8,0,0,ffff800020e1d2d4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6814b0,0,ffff800020e1d3c8,0,0,ffff800020e1d2d4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807a5f6098,ffff800020e1d3c8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1d3c8,0,ffff800020e1d4b0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1d460,ffff800020e1d4b0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d530) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d530) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1180, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d2b0 rbx 0xfffffd806db60500 rdx 0x36c3e acpi_pdirpa+0x22aa6 rcx 0 rax 0 r8 0xffffffff8235a881 soreceive+0x5c1 r9 0x3 r10 0x39ff1267f3663592 r11 0xe66e3cdf34db2390 r12 0xfdc r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f6814b0 rip 0xffffffff8235b3c0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d1c0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=261938 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd5f8,0xffff800020ddc768 process=0xffff800020df0b98 user=0xffff800020e18000, vmspace=0xfffffd807efff170 estcpu=0, cpticks=1, pctcpu=0.33 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70677 189025 45934 0 3 0x82 nanosleep syz-executor.0 51233 99625 0 0 3 0x14280 nfsidl nfsio 27042 459932 0 0 3 0x14280 nfsidl nfsio 34762 429028 0 0 3 0x14280 nfsidl nfsio 95100 11254 0 0 3 0x14280 nfsidl nfsio 14021 44869 0 0 3 0x14280 nfsidl nfsio 95678 494762 0 0 3 0x14280 nfsidl nfsio 42663 111774 0 0 3 0x14280 nfsidl nfsio 2644 226799 0 0 3 0x14280 nfsidl nfsio 56730 494696 0 0 3 0x14280 nfsidl nfsio 49828 427258 0 0 3 0x14280 nfsidl nfsio 43591 116419 0 0 3 0x14280 nfsidl nfsio 27892 53105 0 0 3 0x14280 nfsidl nfsio 92815 497435 0 0 3 0x14280 nfsidl nfsio 54068 86950 0 0 3 0x14280 nfsidl nfsio 23785 460419 0 0 3 0x14280 nfsidl nfsio 53704 333303 0 0 3 0x14280 nfsidl nfsio 81516 433945 0 0 3 0x14280 nfsidl nfsio 81438 133318 0 0 3 0x14280 nfsidl nfsio 93090 185391 0 0 3 0x14280 nfsidl nfsio 736 98572 0 0 3 0x14280 nfsidl nfsio 83225 148430 0 0 3 0x14200 bored sosplice 64913 285628 1 0 3 0x100083 ttyin getty 45934 46227 34215 0 3 0x82 thrsleep syz-fuzzer 45934 317892 34215 0 3 0x4000082 nanosleep syz-fuzzer 45934 300733 34215 0 3 0x4000082 thrsleep syz-fuzzer 45934 358069 34215 0 3 0x4000082 thrsleep syz-fuzzer 45934 326740 34215 0 3 0x4000082 thrsleep syz-fuzzer 45934 396504 34215 0 3 0x4000082 thrsleep syz-fuzzer 45934 474669 34215 0 3 0x4000082 thrsleep syz-fuzzer 45934 43795 34215 0 3 0x4000082 thrsleep syz-fuzzer 45934 193851 34215 0 3 0x4000082 thrsleep syz-fuzzer 45934 266325 34215 0 2 0x4000082 syz-fuzzer 34215 315037 1539 0 3 0x10008a pause ksh 1539 61913 1996 0 3 0x92 select sshd 1996 478858 1 0 3 0x80 select sshd 59152 224846 69714 74 3 0x100092 bpf pflogd 69714 233735 1 0 3 0x80 netio pflogd 61482 463103 86307 73 3 0x100090 kqread syslogd 86307 501753 1 0 3 0x100082 netio syslogd 70124 504778 1 77 2 0x100010 dhclient *15655 261938 1 0 7 0 dhclient 71778 352256 0 0 3 0x14200 bored smr 16431 438979 0 0 2 0x14200 zerothread 13164 346324 0 0 3 0x14200 aiodoned aiodoned 1083 318788 0 0 3 0x14200 syncer update 47984 337457 0 0 3 0x14200 cleaner cleaner 59906 121842 0 0 7 0x14200 reaper 43342 209206 0 0 3 0x14200 pgdaemon pagedaemon 78581 413296 0 0 3 0x14200 bored crynlk 48835 256223 0 0 3 0x14200 bored crypto 56548 244485 0 0 3 0x40014200 acpi0 acpi0 20091 88752 0 0 3 0x40014200 idle1 58859 244093 0 0 2 0x14200 softnet 23212 347236 0 0 3 0x14200 bored systqmp 3817 12798 0 0 3 0x14200 bored systq 45376 287038 0 0 3 0x40014200 bored softclock 32067 389837 0 0 3 0x40014200 idle0 1 241007 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 15655 (dhclient) thread 0xffff800020ddc008 (261938) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8292aa38) #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 58859 (softnet) thread 0xffff800020d889c0 (244093) 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 9533 6430K 7182K 78643K 11478 0 pcb 13 8K 8K 78643K 112 0 rtable 91 4K 8K 78643K 530 0 ifaddr 74 14K 17K 78643K 219 0 counters 41 33K 34K 78643K 67 0 ioctlops 0 0K 4K 78643K 1557 0 iov 0 0K 28K 78643K 91 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 77K 77K 78643K 1504 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 12 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 122 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 658 0 sigio 0 0K 0K 78643K 7 0 proc 61 63K 95K 78643K 578 0 subproc 16 1K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 46 0 in_multi 77 3K 4K 78643K 246 0 ether_multi 1 0K 0K 78643K 14 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 283 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 141 137K 153K 78643K 3220 0 UVM aobj 89 3K 3K 78643K 92 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 70 0 NDP 13 0K 0K 78643K 46 0 temp 128 3865K 3933K 78643K 13104 0 kqueue 3 4K 10K 78643K 18 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 12 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 46 0 44 1 0 1 1 0 8 0 rtentry 112 109 0 76 2 0 2 2 0 8 0 unpcb 120 313 0 303 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 116 0 116 1 1 0 1 0 8 0 tcpcb 544 743 0 739 4 3 1 2 0 8 0 inpcb 296 1669 0 1662 4 2 2 3 0 8 1 nd6 48 41 0 38 1 0 1 1 0 8 0 pkpcb 40 14 0 14 2 2 0 1 0 8 0 ppxss 1128 2 0 2 2 1 1 1 0 8 1 pffrag 232 5 0 4 2 1 1 1 0 482 0 pffrnode 88 5 0 4 2 1 1 1 0 8 0 pffrent 40 55 0 54 2 1 1 1 0 8 0 pfosfp 40 846 0 846 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 13 8 21 0 8 8 pfrktable 1344 27 0 26 1 0 1 1 0 8 0 pftag 88 4 0 4 1 1 0 1 0 8 0 pfstitem 24 45 0 21 1 0 1 1 0 8 0 pfstkey 112 45 0 21 2 0 2 2 0 8 0 pfstate 328 45 0 21 4 0 4 4 0 8 0 pfrule 1360 30 0 23 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 385 0 237 16 3 13 15 0 8 1 art_table 32 386 0 237 2 0 2 2 0 8 0 art_node 16 108 0 78 1 0 1 1 0 8 0 sysvmsgpl 40 47 0 29 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 120 0 110 1 0 1 1 0 8 0 shmpl 112 90 0 3 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2247 0 850 89 0 89 89 0 8 0 ffsino 272 2247 0 850 95 1 94 95 0 8 0 nchpl 144 3366 0 1769 60 0 60 60 0 8 0 uvmvnodes 72 2501 0 0 46 0 46 46 0 8 0 vnodes 208 2501 0 0 132 0 132 132 0 8 0 namei 1024 9590 0 9590 2 1 1 1 0 8 1 percpumem 16 44 0 13 1 0 1 1 0 8 0 vcpupl 1984 15 0 0 2 0 2 2 0 8 0 vmpool 560 19 0 4 2 0 2 2 0 8 0 pfiaddrpl 120 7 0 7 2 2 0 1 0 8 0 scxspl 192 10039 0 10039 9 6 3 6 0 8 3 plimitpl 152 52 0 44 1 0 1 1 0 8 0 sigapl 424 891 0 841 7 1 6 7 0 8 0 futexpl 56 10145 0 10145 2 1 1 1 0 8 1 knotepl 112 105 0 88 1 0 1 1 0 8 0 kqueuepl 144 79 0 77 1 0 1 1 0 8 0 pipepl 304 170 0 161 3 2 1 3 0 8 0 fdescpl 496 853 0 839 3 0 3 3 0 8 0 filepl 152 5307 0 5228 7 2 5 7 0 8 1 lockfpl 104 118 0 117 1 0 1 1 0 8 0 lockfspl 48 43 0 42 1 0 1 1 0 8 0 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 39 0 28 1 0 1 1 0 8 0 ucredpl 96 326 0 317 1 0 1 1 0 8 0 zombiepl 144 841 0 839 1 0 1 1 0 8 0 processpl 984 891 0 839 7 0 7 7 0 8 0 procpl 624 2322 0 2261 7 1 6 6 0 8 1 sosppl 128 7 0 7 2 2 0 1 0 8 0 sockpl 400 2043 0 2024 7 4 3 5 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 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 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k 2048 173 0 0 21 0 21 21 0 8 0 mtagpl 96 44 0 0 1 0 1 1 0 8 0 mbufpl 256 282 0 0 17 0 17 17 0 8 0 bufpl 280 4754 0 132 331 0 331 331 0 8 0 anonpl 16 102940 0 87573 97 18 79 83 0 124 9 amapchunkpl 152 6403 0 6254 37 17 20 20 0 158 12 amappl16 192 4252 0 3299 68 18 50 58 0 8 1 amappl15 184 160 0 159 2 1 1 1 0 8 0 amappl14 176 29 0 25 1 0 1 1 0 8 0 amappl13 168 177 0 172 1 0 1 1 0 8 0 amappl12 160 10 0 7 2 1 1 1 0 8 0 amappl11 152 59 0 44 1 0 1 1 0 8 0 amappl10 144 236 0 229 1 0 1 1 0 8 0 amappl9 136 385 0 384 1 0 1 1 0 8 0 amappl8 128 397 0 361 2 0 2 2 0 8 0 amappl7 120 183 0 171 1 0 1 1 0 8 0 amappl6 112 19 0 17 2 1 1 1 0 8 0 amappl5 104 747 0 730 1 0 1 1 0 8 0 amappl4 96 648 0 621 1 0 1 1 0 8 0 amappl3 88 129 0 123 1 0 1 1 0 8 0 amappl2 80 5906 0 5841 2 0 2 2 0 8 0 amappl1 72 28938 0 28509 23 13 10 18 0 8 0 amappl 80 2609 0 2560 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 91 0 3 2 0 2 2 0 8 0 uaddrrnd 24 872 0 843 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 872 0 843 1 0 1 1 0 8 0 vmmpekpl 168 10443 0 10403 2 0 2 2 0 8 0 vmmpepl 168 111626 0 109612 159 29 130 130 0 357 33 vmsppl 368 871 0 842 3 0 3 3 0 8 0 pdppl 4096 1751 0 1699 8 0 8 8 0 8 1 pvpl 32 293341 0 274902 218 23 195 198 0 265 30 pmappl 232 871 0 842 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 283 0 16 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(ffffffff82751ff0) 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(ffffffff8292a830) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292a830) 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 __mp_lock(ffffffff8292a830) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292a830) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf950,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd806e8f8008) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd806e8f8008) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e3c408) 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: -12 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f6814b0,0,ffff800020e1d3c8,0,0,ffff800020e1d2d4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6814b0,0,ffff800020e1d3c8,0,0,ffff800020e1d2d4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807a5f6098,ffff800020e1d3c8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1d3c8,0,ffff800020e1d4b0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1d460,ffff800020e1d4b0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d530) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d530) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1180, count: -6