uvm_fault(0xffffffff827b0b88, 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(0xffffffff827b0b88, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f684000,0,ffff800020e1ddd8,0,0,ffff800020e1dce4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f684000,0,ffff800020e1ddd8,0,0,ffff800020e1dce4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1dd20, count: 0 ddb{0}> trace soreceive(fffffd806f684000,0,ffff800020e1ddd8,0,0,ffff800020e1dce4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f684000,0,ffff800020e1ddd8,0,0,ffff800020e1dce4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80779f7390,ffff800020e1ddd8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1ddd8,0,ffff800020e1dec0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1de70,ffff800020e1dec0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1df40) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1df40) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbb270, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1dcc0 rbx 0xfffffd8064afb400 rdx 0x5d52a acpi_pdirpa+0x49392 rcx 0 rax 0 r8 0xffffffff812d68a1 soreceive+0x5c1 r9 0x3 r10 0x517d180a134fb406 r11 0xb743b2185ec198f r12 0x77a r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f684000 rip 0xffffffff812d73e0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1dbd0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=482377 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd388,0xffff800020ddc9d8 process=0xffff800020df1348 user=0xffff800020e18000, vmspace=0xfffffd807f000000 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20131 415897 0 0 3 0x14280 nfsidl nfsio 54862 180646 0 0 3 0x14280 nfsidl nfsio 46630 382906 0 0 3 0x14280 nfsidl nfsio 68219 507395 0 0 3 0x14280 nfsidl nfsio 36517 2510 0 0 3 0x14280 nfsidl nfsio 70494 108957 0 0 3 0x14280 nfsidl nfsio 50445 161983 0 0 3 0x14280 nfsidl nfsio 25605 509381 0 0 3 0x14280 nfsidl nfsio 65475 479615 0 0 3 0x14280 nfsidl nfsio 61221 262908 0 0 3 0x14280 nfsidl nfsio 71223 276573 0 0 3 0x14280 nfsidl nfsio 98896 10177 0 0 3 0x14280 nfsidl nfsio 33377 243700 0 0 3 0x14280 nfsidl nfsio 46686 166040 0 0 3 0x14280 nfsidl nfsio 24537 33254 0 0 3 0x14280 nfsidl nfsio 70349 320960 0 0 3 0x14280 nfsidl nfsio 58046 165537 0 0 3 0x14280 nfsidl nfsio 83954 286955 0 0 3 0x14280 nfsidl nfsio 54533 289038 0 0 3 0x14280 nfsidl nfsio 22849 39505 0 0 3 0x14280 nfsidl nfsio 42169 485805 0 0 3 0x14200 bored sosplice 65165 295388 98073 0 3 0x82 piperd syz-executor.1 98073 446789 74928 0 3 0x82 thrsleep syz-fuzzer 98073 521543 74928 0 3 0x4000082 thrsleep syz-fuzzer 98073 386679 74928 0 3 0x4000082 thrsleep syz-fuzzer 98073 425906 74928 0 3 0x4000082 thrsleep syz-fuzzer 98073 300080 74928 0 3 0x4000082 thrsleep syz-fuzzer 98073 46783 74928 0 3 0x4000082 kqread syz-fuzzer 98073 5188 74928 0 3 0x4000082 thrsleep syz-fuzzer 98073 384983 74928 0 3 0x4000082 thrsleep syz-fuzzer 98073 60822 74928 0 3 0x4000082 thrsleep syz-fuzzer 98073 187939 74928 0 3 0x4000082 thrsleep syz-fuzzer 74928 451741 34366 0 3 0x10008a pause ksh 34366 461244 11357 0 3 0x92 select sshd 1832 48405 1 0 3 0x100083 ttyin getty 11357 278242 1 0 3 0x80 select sshd 33550 207347 42199 74 3 0x100092 bpf pflogd 42199 226373 1 0 3 0x80 netio pflogd 53033 310080 58543 73 3 0x100090 kqread syslogd 58543 483910 1 0 3 0x100082 netio syslogd 99257 226956 1 77 2 0x100010 dhclient *77962 482377 1 0 7 0 dhclient 58296 160191 0 0 3 0x14200 bored smr 28418 119284 0 0 3 0x14200 pgzero zerothread 66084 26045 0 0 3 0x14200 aiodoned aiodoned 72107 378370 0 0 3 0x14200 syncer update 43869 322297 0 0 3 0x14200 cleaner cleaner 93793 426954 0 0 3 0x14200 reaper reaper 68976 151558 0 0 3 0x14200 pgdaemon pagedaemon 19875 42995 0 0 3 0x14200 bored crynlk 90311 339218 0 0 3 0x14200 bored crypto 20227 10721 0 0 3 0x40014200 acpi0 acpi0 28094 28790 0 0 3 0x40014200 idle1 56859 306799 0 0 3 0x14200 tqbarend softnet 3478 215435 0 0 3 0x14200 bored systqmp 34449 189597 0 0 3 0x14200 bored systq 29317 213938 0 0 2 0x40014200 softclock 52934 383258 0 0 3 0x40014200 idle0 1 49680 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 77962 (dhclient) thread 0xffff800020ddc008 (482377) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828c9810) #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 56859 (softnet) thread 0xffff800020d884e0 (306799) 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 9539 6426K 7178K 78643K 11551 0 pcb 13 8K 8K 78643K 93 0 rtable 95 5K 8K 78643K 636 0 ifaddr 86 16K 19K 78643K 179 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1538 0 iov 0 0K 16K 78643K 75 0 mount 1 1K 1K 78643K 1 0 vnodes 1224 77K 77K 78643K 1492 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 10 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 114 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 532 0 sigio 0 0K 0K 78643K 13 0 proc 62 63K 95K 78643K 483 0 subproc 23 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 40 0 in_multi 73 3K 3K 78643K 157 0 ether_multi 1 0K 0K 78643K 11 0 mrt 0 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 245 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 138 105K 105K 78643K 2722 0 UVM aobj 22 2K 2K 78643K 28 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 82 0 NDP 14 0K 0K 78643K 36 0 temp 118 3870K 3938K 78643K 14730 0 kqueue 3 4K 8K 78643K 29 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 10 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 284 0 282 1 0 1 1 0 8 0 rtentry 112 82 0 49 2 0 2 2 0 8 0 unpcb 120 596 0 586 1 0 1 1 0 8 0 syncache 264 10 0 10 3 3 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 69 0 69 1 1 0 1 0 8 0 tcpcb 544 228 0 224 1 0 1 1 0 8 0 inpcb 296 653 0 645 2 0 2 2 0 8 1 rttmr 72 3 0 3 2 2 0 1 0 8 0 nd6 48 21 0 20 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 pffrag 232 4 0 3 1 0 1 1 0 482 0 pffrnode 88 4 0 3 1 0 1 1 0 8 0 pffrent 40 136 0 135 1 0 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 26 0 22 1 0 1 1 0 8 0 pftag 88 1 0 1 1 0 1 1 0 8 1 pfstitem 24 33 0 16 1 0 1 1 0 8 0 pfstkey 112 33 0 16 1 0 1 1 0 8 0 pfstate 328 33 0 16 3 0 3 3 0 8 0 pfrule 1360 32 0 22 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 355 0 214 16 1 15 15 0 8 4 art_table 32 357 0 214 2 0 2 2 0 8 0 art_node 16 81 0 51 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 110 0 100 1 0 1 1 0 8 0 shmpl 112 26 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2129 0 727 89 0 89 89 0 8 0 ffsino 272 2129 0 727 95 1 94 95 0 8 0 nchpl 144 3179 0 1570 60 0 60 60 0 8 0 uvmvnodes 72 2371 0 0 44 0 44 44 0 8 0 vnodes 208 2371 0 0 125 0 125 125 0 8 0 namei 1024 8645 0 8645 1 0 1 1 0 8 1 percpumem 16 41 0 10 1 0 1 1 0 8 0 vcpupl 1984 9 0 0 2 0 2 2 0 8 0 vmpool 560 13 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 5 1 0 1 1 0 8 0 scxspl 192 9198 0 9198 6 5 1 5 0 8 1 plimitpl 152 45 0 37 1 0 1 1 0 8 0 sigapl 424 768 0 717 6 0 6 6 0 8 0 futexpl 56 8038 0 8038 1 0 1 1 0 8 1 knotepl 112 93 0 76 1 0 1 1 0 8 0 kqueuepl 144 75 0 73 1 0 1 1 0 8 0 pipelkpl 48 147 0 138 1 0 1 1 0 8 0 pipepl 120 294 0 277 2 1 1 2 0 8 0 fdescpl 496 732 0 717 3 0 3 3 0 8 0 filepl 152 4732 0 4643 6 1 5 6 0 8 1 lockfpl 104 139 0 138 1 0 1 1 0 8 0 lockfspl 48 49 0 48 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 457 0 448 1 0 1 1 0 8 0 zombiepl 144 718 0 717 1 0 1 1 0 8 0 processpl 984 768 0 717 7 0 7 7 0 8 0 procpl 624 1934 0 1874 6 0 6 6 0 8 1 sosppl 128 7 0 7 4 4 0 1 0 8 0 sockpl 400 1540 0 1521 4 0 4 4 0 8 2 mcl64k 65536 8 0 0 1 0 1 1 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 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 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 88 0 0 3 0 3 3 0 8 0 mbufpl 256 452 0 0 27 0 27 27 0 8 0 bufpl 280 4474 0 149 309 0 309 309 0 8 0 anonpl 16 80614 0 64572 83 13 70 82 0 124 2 amapchunkpl 152 4420 0 4273 23 16 7 20 0 158 0 amappl16 192 3389 0 2505 57 12 45 57 0 8 0 amappl15 184 252 0 250 1 0 1 1 0 8 0 amappl14 176 25 0 19 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 17 0 15 2 1 1 1 0 8 0 amappl11 152 556 0 539 1 0 1 1 0 8 0 amappl10 144 21 0 14 1 0 1 1 0 8 0 amappl9 136 387 0 384 1 0 1 1 0 8 0 amappl8 128 358 0 319 2 0 2 2 0 8 0 amappl7 120 119 0 107 1 0 1 1 0 8 0 amappl6 112 271 0 266 1 0 1 1 0 8 0 amappl5 104 637 0 621 1 0 1 1 0 8 0 amappl4 96 493 0 465 1 0 1 1 0 8 0 amappl3 88 130 0 125 1 0 1 1 0 8 0 amappl2 80 5173 0 5113 2 0 2 2 0 8 0 amappl1 72 25568 0 25146 23 13 10 18 0 8 0 amappl 80 2173 0 2125 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 27 0 6 1 0 1 1 0 8 0 uaddrrnd 24 745 0 721 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 745 0 721 1 0 1 1 0 8 0 vmmpekpl 168 9532 0 9491 2 0 2 2 0 8 0 vmmpepl 168 95385 0 93441 117 21 96 113 0 357 2 vmsppl 368 744 0 721 3 0 3 3 0 8 0 pdppl 4096 1497 0 1451 7 0 7 7 0 8 0 pvpl 32 253069 0 233853 195 12 183 195 0 265 19 pmappl 232 744 0 721 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 283 0 5 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f684000,0,ffff800020e1ddd8,0,0,ffff800020e1dce4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f684000,0,ffff800020e1ddd8,0,0,ffff800020e1dce4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80779f7390,ffff800020e1ddd8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1ddd8,0,ffff800020e1dec0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1de70,ffff800020e1dec0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1df40) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1df40) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbb270, 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 __mp_lock(ffffffff828c9608) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c9608) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828c9608,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020edeef8,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020edeef8,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020edeef8,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 msleep(ffff80000002c068,ffff80000002c018,20,ffffffff823d4353,0) at msleep+0x214 sys/kern/kern_synch.c:257 taskq_do_barrier(ffff80000002c000) at taskq_do_barrier+0x131 sys/kern/kern_task.c:301 ifq_destroy(ffff800000ac6278) at ifq_destroy+0xd1 sys/net/ifq.c:274 if_detach(ffff800000ac6000) at if_detach+0x3f8 sys/net/if.c:1186 tun_clone_destroy(ffff800000ac6000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020edf1f0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e40e008,7,fffffd807f7bf900,ffff800020ddc278) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80669dd998,ffff800020ddc278) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80669dd998,ffff800020ddc278) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80669dd998,ffff800020ddc278) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80669dd998,ffff800020ddc278) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddc278) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddc278,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddc278,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddc278,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddc278) at userret+0x199 sys/kern/kern_sig.c:1872 syscall(ffff800020edf670) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800020edf670) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff98e0, count: -25