uvm_fault(0xffffffff827b2830, 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(0xffffffff827b2830, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68f640,0,ffff800020e1e6c8,0,0,ffff800020e1e5d4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68f640,0,ffff800020e1e6c8,0,0,ffff800020e1e5d4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1e610, count: 0 ddb{1}> trace soreceive(fffffd806f68f640,0,ffff800020e1e6c8,0,0,ffff800020e1e5d4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68f640,0,ffff800020e1e6c8,0,0,ffff800020e1e5d4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80789f6000,ffff800020e1e6c8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1e6c8,0,ffff800020e1e7b0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1e760,ffff800020e1e7b0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e830) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e830) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbd200, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1e5b0 rbx 0xfffffd806d3be900 rdx 0x2e256 acpi_pdirpa+0x1a0be rcx 0 rax 0 r8 0xffffffff81483891 soreceive+0x5c1 r9 0x3 r10 0x82fd907075378f0e r11 0x9fe15db7e7e98b2 r12 0xb1e r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68f640 rip 0xffffffff814843d0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1e4c0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=18255 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcea8,0xffff800020ddc9d8 process=0xffff800020df07d0 user=0xffff800020e19000, vmspace=0xfffffd807efff5c0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 75163 423989 0 0 3 0x14200 bored sosplice 20239 263658 0 0 3 0x14280 nfsidl nfsio 60082 522188 0 0 3 0x14280 nfsidl nfsio 14360 75176 0 0 3 0x14280 nfsidl nfsio 56786 35470 0 0 3 0x14280 nfsidl nfsio 77631 503191 0 0 3 0x14280 nfsidl nfsio 54381 371654 0 0 3 0x14280 nfsidl nfsio 19977 366908 0 0 3 0x14280 nfsidl nfsio 10042 62619 0 0 3 0x14280 nfsidl nfsio 90634 163134 0 0 3 0x14280 nfsidl nfsio 74876 90000 0 0 3 0x14280 nfsidl nfsio 91465 2457 0 0 3 0x14280 nfsidl nfsio 17341 383490 0 0 3 0x14280 nfsidl nfsio 83247 69942 0 0 3 0x14280 nfsidl nfsio 47177 312989 0 0 3 0x14280 nfsidl nfsio 86973 202331 0 0 3 0x14280 nfsidl nfsio 75479 142142 0 0 3 0x14280 nfsidl nfsio 34520 304804 0 0 3 0x14280 nfsidl nfsio 70621 193075 0 0 3 0x14280 nfsidl nfsio 71245 56271 0 0 3 0x14280 nfsidl nfsio 16095 271979 0 0 3 0x14280 nfsidl nfsio 74241 319913 56717 0 2 0x2 syz-executor.0 56717 387165 62140 0 3 0x82 thrsleep syz-fuzzer 56717 216078 62140 0 2 0x4000082 syz-fuzzer 56717 156719 62140 0 3 0x4000082 thrsleep syz-fuzzer 56717 401659 62140 0 3 0x4000082 thrsleep syz-fuzzer 56717 100630 62140 0 3 0x4000082 thrsleep syz-fuzzer 56717 266120 62140 0 3 0x4000082 thrsleep syz-fuzzer 56717 314954 62140 0 3 0x4000082 nanosleep syz-fuzzer 56717 375663 62140 0 3 0x4000082 thrsleep syz-fuzzer 56717 298118 62140 0 3 0x4000082 kqread syz-fuzzer 56717 32798 62140 0 3 0x4000082 thrsleep syz-fuzzer 62140 253528 29201 0 3 0x10008a pause ksh 29201 504917 25845 0 2 0x12 sshd 46134 97287 1 0 3 0x100083 ttyin getty 25845 89539 1 0 3 0x80 select sshd 16700 204678 8273 74 3 0x100092 bpf pflogd 8273 115767 1 0 3 0x80 netio pflogd 13857 54098 85133 73 3 0x100090 kqread syslogd 85133 107056 1 0 3 0x100082 netio syslogd 99508 35744 1 77 3 0x100090 poll dhclient *30369 18255 1 0 7 0 dhclient 81171 385487 0 0 3 0x14200 bored smr 38740 287581 0 0 2 0x14200 zerothread 48691 356615 0 0 3 0x14200 aiodoned aiodoned 42223 458533 0 0 3 0x14200 syncer update 77468 470416 0 0 3 0x14200 cleaner cleaner 2517 403440 0 0 3 0x14200 reaper reaper 24170 103030 0 0 3 0x14200 pgdaemon pagedaemon 21840 401348 0 0 3 0x14200 bored crynlk 33079 368480 0 0 3 0x14200 bored crypto 71691 442490 0 0 3 0x40014200 acpi0 acpi0 25013 473778 0 0 3 0x40014200 idle1 56972 373345 0 0 3 0x14200 tqbarend softnet 50365 197848 0 0 3 0x14200 bored systqmp 66075 268009 0 0 3 0x14200 bored systq 21750 249226 0 0 3 0x40014200 bored softclock 37625 390904 0 0 3 0x40014200 idle0 1 334352 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 30369 (dhclient) thread 0xffff800020ddc4e8 (18255) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff829013e0) #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 56972 (softnet) thread 0xffff800020d88270 (373345) 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 9489 6413K 6929K 78643K 10957 0 pcb 13 8K 8K 78643K 35 0 rtable 86 3K 4K 78643K 223 0 ifaddr 48 11K 12K 78643K 78 0 counters 41 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1474 0 iov 0 0K 4K 78643K 17 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 77K 77K 78643K 1316 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 30 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 233 0 proc 62 63K 95K 78643K 449 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 13 0 in_multi 35 2K 2K 78643K 50 0 ether_multi 1 0K 0K 78643K 3 0 mrt 0 0K 0K 78643K 2 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 211 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 103 21K 22K 78643K 1518 0 UVM aobj 12 2K 2K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 6 0 NDP 7 0K 0K 78643K 14 0 temp 75 3856K 3921K 78643K 4862 0 kqueue 3 4K 8K 78643K 12 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 20 0 18 1 0 1 1 0 8 0 rtentry 112 46 0 13 2 0 2 2 0 8 0 unpcb 120 72 0 62 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 11 0 11 1 1 0 1 0 8 0 tcpcb 544 48 0 44 1 0 1 1 0 8 0 inpcb 296 156 0 149 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 6 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 swfcl 56 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 2 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 1 0 0 1 0 1 1 0 8 0 pfstitem 24 26 0 3 1 0 1 1 0 8 0 pfstkey 112 26 0 3 1 0 1 1 0 8 0 pfstate 328 26 0 3 2 0 2 2 0 8 0 pfrule 1360 23 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 44 12 0 12 12 0 8 1 art_table 32 189 0 44 2 0 2 2 0 8 0 art_node 16 45 0 15 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 28 0 18 1 0 1 1 0 8 0 shmpl 112 10 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1682 0 279 89 1 88 89 0 8 0 ffsino 272 1682 0 279 96 2 94 95 0 8 0 nchpl 144 2120 0 510 60 0 60 60 0 8 0 uvmvnodes 72 1802 0 0 33 0 33 33 0 8 0 vnodes 208 1802 0 0 95 0 95 95 0 8 0 namei 1024 5760 0 5760 2 1 1 1 0 8 1 percpumem 16 34 0 3 1 0 1 1 0 8 0 scxspl 192 6448 0 6448 9 4 5 7 0 8 5 plimitpl 152 44 0 36 1 0 1 1 0 8 0 sigapl 424 469 0 418 6 0 6 6 0 8 0 futexpl 56 1584 0 1584 1 0 1 1 0 8 1 knotepl 112 69 0 52 1 0 1 1 0 8 0 kqueuepl 144 14 0 12 1 0 1 1 0 8 0 pipepl 304 83 0 74 2 1 1 2 0 8 0 fdescpl 496 433 0 418 3 0 3 3 0 8 0 filepl 152 1899 0 1809 6 1 5 5 0 8 1 lockfpl 104 35 0 34 1 0 1 1 0 8 0 lockfspl 48 14 0 13 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 246 0 237 1 0 1 1 0 8 0 zombiepl 144 419 0 418 2 1 1 1 0 8 0 processpl 992 469 0 418 8 1 7 7 0 8 0 procpl 624 792 0 732 6 0 6 6 0 8 0 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 400 250 0 231 4 1 3 3 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 193 0 0 24 0 24 24 0 8 0 mtagpl 96 36 0 0 1 0 1 1 0 8 0 mbufpl 256 234 0 0 14 0 14 14 0 8 0 bufpl 280 3723 0 134 257 0 257 257 0 8 0 anonpl 16 47886 0 34666 56 2 54 55 0 124 0 amapchunkpl 152 1842 0 1716 7 0 7 7 0 158 0 amappl16 192 1564 0 854 37 1 36 37 0 8 0 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 138 0 132 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 6 0 6 1 1 0 1 0 8 0 amappl11 152 161 0 144 1 0 1 1 0 8 0 amappl10 144 14 0 10 1 0 1 1 0 8 0 amappl9 136 481 0 479 1 0 1 1 0 8 0 amappl8 128 423 0 400 1 0 1 1 0 8 0 amappl7 120 117 0 105 1 0 1 1 0 8 0 amappl6 112 132 0 126 1 0 1 1 0 8 0 amappl5 104 226 0 212 1 0 1 1 0 8 0 amappl4 96 592 0 562 1 0 1 1 0 8 0 amappl3 88 98 0 93 1 0 1 1 0 8 0 amappl2 80 2527 0 2464 2 0 2 2 0 8 0 amappl1 72 18704 0 18277 23 13 10 18 0 8 0 amappl 80 1018 0 978 1 0 1 1 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 12 0 1 1 0 1 1 0 8 0 uaddrrnd 24 433 0 418 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 433 0 418 1 0 1 1 0 8 0 vmmpekpl 168 6993 0 6951 2 0 2 2 0 8 0 vmmpepl 168 58563 0 56804 114 12 102 107 0 357 20 vmsppl 368 432 0 418 2 0 2 2 0 8 0 pdppl 4096 873 0 836 7 1 6 6 0 8 1 pvpl 32 171821 0 155480 139 0 139 139 0 265 4 pmappl 232 432 0 418 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 268 0 9 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(ffffffff8270eff0) 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(86b18,86b19) at __sanitizer_cov_trace_cmp4+0x5d kd_curproc sys/dev/kcov.c:416 [inline] __sanitizer_cov_trace_cmp4(86b18,86b19) at __sanitizer_cov_trace_cmp4+0x5d trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(86b18,86b19) at __sanitizer_cov_trace_cmp4+0x5d sys/dev/kcov.c:135 __mp_lock(ffffffff829011d8) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829011d8) at __mp_lock+0x139 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff829011d8,2) 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(ffff8000228f8068,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff8000228f8068,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff8000228f8068,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 msleep(ffff80000002c068,ffff80000002c018,20,ffffffff823d8e45,0) 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(ffff800000af6278) at ifq_destroy+0xd1 sys/net/ifq.c:341 if_detach(ffff800000af6000) at if_detach+0x3f8 sys/net/if.c:1186 tun_clone_destroy(ffff800000af6000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff8000228f8360) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd807875e5b8,7,fffffd807f7bf840,ffff800020ddd388) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80687f5c98,ffff800020ddd388) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80687f5c98,ffff800020ddd388) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80687f5c98,ffff800020ddd388) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80687f5c98,ffff800020ddd388) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddd388) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddd388,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddd388,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddd388,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddd388) at userret+0x199 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7ffffd07a0, count: -25 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f68f640,0,ffff800020e1e6c8,0,0,ffff800020e1e5d4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68f640,0,ffff800020e1e6c8,0,0,ffff800020e1e5d4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80789f6000,ffff800020e1e6c8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1e6c8,0,ffff800020e1e7b0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1e760,ffff800020e1e7b0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e830) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e830) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbd200, count: -6