uvm_fault(0xffffffff828a5880, 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(0xffffffff828a5880, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f682320,0,ffff800020e1dd98,0,0,ffff800020e1dca4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f682320,0,ffff800020e1dd98,0,0,ffff800020e1dca4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1dce0, count: 0 ddb{1}> trace soreceive(fffffd806f682320,0,ffff800020e1dd98,0,0,ffff800020e1dca4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f682320,0,ffff800020e1dd98,0,0,ffff800020e1dca4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8071bf74c0,ffff800020e1dd98,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1dd98,0,ffff800020e1de80) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1de30,ffff800020e1de80) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1df00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1df00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff51e0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1dc80 rbx 0xfffffd806d5bd900 rdx 0x3873c acpi_pdirpa+0x245a4 rcx 0 rax 0 r8 0xffffffff8104b9a1 soreceive+0x5c1 r9 0x3 r10 0x4fcb4fb56bfdc865 r11 0xbc1f5a544d7b18cc r12 0xafc r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f682320 rip 0xffffffff8104c4e0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1db90 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=150736 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd118,0xffff800020ddc768 process=0xffff800020df03e8 user=0xffff800020e18000, vmspace=0xfffffd807f000170 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 23694 446023 35169 0 2 0 syz-executor.0 23694 2589 35169 0 2 0x4000000 syz-executor.0 13788 501107 0 0 3 0x14280 nfsidl nfsio 64387 257651 0 0 3 0x14280 nfsidl nfsio 22021 74055 0 0 3 0x14280 nfsidl nfsio 93343 131320 0 0 3 0x14280 nfsidl nfsio 91859 341319 0 0 3 0x14280 nfsidl nfsio 91514 136057 0 0 3 0x14280 nfsidl nfsio 63310 94442 0 0 3 0x14280 nfsidl nfsio 45580 484678 0 0 3 0x14280 nfsidl nfsio 42758 261446 0 0 3 0x14280 nfsidl nfsio 44437 253645 0 0 3 0x14280 nfsidl nfsio 432 188785 0 0 3 0x14280 nfsidl nfsio 97528 307370 0 0 3 0x14280 nfsidl nfsio 47372 287342 0 0 3 0x14280 nfsidl nfsio 8718 445287 0 0 3 0x14280 nfsidl nfsio 96029 163946 0 0 3 0x14280 nfsidl nfsio 90857 492038 0 0 3 0x14280 nfsidl nfsio 59923 384283 0 0 3 0x14280 nfsidl nfsio 22737 333396 0 0 3 0x14280 nfsidl nfsio 78922 367290 0 0 3 0x14280 nfsidl nfsio 63585 380755 0 0 3 0x14280 nfsidl nfsio 95339 376752 0 0 3 0x14200 bored sosplice 86224 348001 42066 0 2 0x2 syz-executor.1 35169 468532 42066 0 3 0x82 nanosleep syz-executor.0 42066 331461 39882 0 2 0x2 syz-fuzzer 42066 458572 39882 0 3 0x4000082 nanosleep syz-fuzzer 42066 108617 39882 0 3 0x4000082 thrsleep syz-fuzzer 42066 423245 39882 0 3 0x4000082 kqread syz-fuzzer 42066 288601 39882 0 3 0x4000082 thrsleep syz-fuzzer 42066 128095 39882 0 3 0x4000082 thrsleep syz-fuzzer 42066 183758 39882 0 3 0x4000082 thrsleep syz-fuzzer 42066 189398 39882 0 3 0x4000082 thrsleep syz-fuzzer 42066 456025 39882 0 3 0x4000082 thrsleep syz-fuzzer 42066 294715 39882 0 3 0x4000082 thrsleep syz-fuzzer 42066 153908 39882 0 3 0x4000082 thrsleep syz-fuzzer 39882 294771 70508 0 3 0x10008a pause ksh 70508 342318 73898 0 2 0x12 sshd 27418 133704 1 0 3 0x100083 ttyin getty 73898 304213 1 0 3 0x80 select sshd 2022 154472 33993 74 3 0x100092 bpf pflogd 33993 182183 1 0 3 0x80 netio pflogd 46332 112850 7871 73 3 0x100090 kqread syslogd 7871 144026 1 0 3 0x100082 netio syslogd 32125 394460 1 77 2 0x100010 dhclient * 5050 150736 1 0 7 0 dhclient 11240 309986 0 0 3 0x14200 bored smr 56689 491031 0 0 2 0x14200 zerothread 59934 70888 0 0 3 0x14200 aiodoned aiodoned 12216 442046 0 0 3 0x14200 syncer update 94067 260744 0 0 3 0x14200 cleaner cleaner 4796 213502 0 0 3 0x14200 reaper reaper 79598 81913 0 0 3 0x14200 pgdaemon pagedaemon 66702 143888 0 0 3 0x14200 bored crynlk 15829 511748 0 0 3 0x14200 bored crypto 99852 512403 0 0 3 0x40014200 acpi0 acpi0 91412 424776 0 0 3 0x40014200 idle1 56738 79388 0 0 7 0x14200 softnet 54359 130433 0 0 2 0x14200 systqmp 27621 51755 0 0 3 0x14200 bored systq 20237 354603 0 0 3 0x40014200 bored softclock 44692 436360 0 0 3 0x40014200 idle0 1 180138 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 5050 (dhclient) thread 0xffff800020ddc008 (150736) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828adde8) #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 56738 (softnet) thread 0xffff800020d889c0 (79388) 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 9532 6612K 6680K 78643K 10901 0 pcb 13 8K 8K 78643K 60 0 rtable 93 7K 8K 78643K 289 0 ifaddr 74 14K 15K 78643K 98 0 counters 43 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1519 0 iov 0 0K 24K 78643K 416 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1330 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 9 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 44 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 291 0 proc 61 63K 95K 78643K 466 0 subproc 32 2K 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 20 0 in_multi 35 2K 2K 78643K 71 0 ether_multi 1 0K 0K 78643K 6 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 228 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 122 23K 27K 78643K 1958 0 UVM aobj 15 4K 4K 78643K 21 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 26 0 NDP 12 0K 0K 78643K 20 0 temp 121 3869K 3933K 78643K 6775 0 kqueue 3 4K 16K 78643K 17 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 35 0 33 1 0 1 1 0 8 0 rtentry 112 49 0 22 2 0 2 2 0 8 0 unpcb 120 149 0 139 1 0 1 1 0 8 0 syncache 264 7 0 7 2 1 1 1 0 8 1 tcpqe 32 133 0 133 1 0 1 1 0 8 1 tcpcb 544 105 0 101 1 0 1 1 0 8 0 inpcb 296 360 0 351 2 0 2 2 0 8 1 nd6 48 9 0 5 1 0 1 1 0 8 0 swfcl 56 1 0 0 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 11 0 3 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 3 0 3 3 0 8 0 pfrule 1360 29 0 16 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 190 0 41 12 0 12 12 0 8 1 art_table 32 191 0 41 2 0 2 2 0 8 0 art_node 16 48 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 67 0 52 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 42 0 32 1 0 1 1 0 8 0 shmpl 112 19 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1862 0 460 89 0 89 89 0 8 0 ffsino 272 1862 0 460 95 0 95 95 0 8 0 nchpl 144 2521 0 911 60 0 60 60 0 8 0 uvmvnodes 72 1984 0 0 37 0 37 37 0 8 0 vnodes 208 1984 0 0 105 0 105 105 0 8 0 namei 1024 7125 0 7125 1 0 1 1 0 8 1 percpumem 16 35 0 3 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 0 1 0 1 1 0 8 0 scxspl 192 7350 0 7350 8 4 4 7 0 8 4 plimitpl 152 35 0 27 1 0 1 1 0 8 0 sigapl 424 527 0 475 6 0 6 6 0 8 0 futexpl 56 4899 0 4899 1 0 1 1 0 8 1 knotepl 112 74 0 55 1 0 1 1 0 8 0 kqueuepl 144 47 0 44 1 0 1 1 0 8 0 pipelkpl 48 110 0 100 1 0 1 1 0 8 0 pipepl 120 220 0 201 1 0 1 1 0 8 0 fdescpl 496 491 0 475 3 0 3 3 0 8 0 filepl 152 3049 0 2945 5 0 5 5 0 8 1 lockfpl 104 294 0 293 1 0 1 1 0 8 0 lockfspl 48 122 0 121 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 288 0 279 1 0 1 1 0 8 0 zombiepl 144 475 0 475 1 0 1 1 0 8 1 processpl 984 527 0 475 7 0 7 7 0 8 0 procpl 624 1108 0 1045 6 0 6 6 0 8 0 srpgc 64 2 0 0 1 0 1 1 0 8 0 sosppl 128 11 0 11 1 0 1 1 0 8 1 sockpl 400 544 0 523 4 0 4 4 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 180 0 0 22 0 22 22 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 224 0 0 14 0 14 14 0 8 0 bufpl 280 3985 0 136 275 0 275 275 0 8 0 anonpl 16 58675 0 42290 78 3 75 77 0 124 7 amapchunkpl 152 2570 0 2418 9 1 8 9 0 158 0 amappl16 192 2287 0 1411 52 2 50 52 0 8 6 amappl15 184 2 0 2 2 2 0 1 0 8 0 amappl14 176 31 0 26 1 0 1 1 0 8 0 amappl13 168 31 0 27 1 0 1 1 0 8 0 amappl12 160 5 0 4 2 1 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 156 0 146 1 0 1 1 0 8 0 amappl9 136 515 0 513 1 0 1 1 0 8 0 amappl8 128 496 0 458 2 0 2 2 0 8 0 amappl7 120 115 0 105 1 0 1 1 0 8 0 amappl6 112 28 0 20 1 0 1 1 0 8 0 amappl5 104 385 0 369 1 0 1 1 0 8 0 amappl4 96 497 0 468 1 0 1 1 0 8 0 amappl3 88 117 0 112 1 0 1 1 0 8 0 amappl2 80 2981 0 2912 2 0 2 2 0 8 0 amappl1 72 20322 0 19880 23 13 10 18 0 8 0 amappl 80 1339 0 1295 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 20 0 6 1 0 1 1 0 8 0 uaddrrnd 24 491 0 475 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 491 0 475 1 0 1 1 0 8 0 vmmpekpl 168 7918 0 7883 2 0 2 2 0 8 0 vmmpepl 168 66220 0 64186 118 7 111 115 0 357 17 vmsppl 368 490 0 475 2 0 2 2 0 8 0 pdppl 4096 989 0 950 6 0 6 6 0 8 0 pvpl 32 192216 0 172575 182 2 180 182 0 265 19 pmappl 232 490 0 475 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 267 0 3 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(ffffffff82764ff0) 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_pc() at __sanitizer_cov_trace_pc+0x6f sys/dev/kcov.c:88 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828adbe0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828adbe0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 if_qstart_compat(ffff80000017b520) at if_qstart_compat+0x1a sys/net/if.c:675 ifq_serialize(ffff80000017b520,ffff80000017b630) at ifq_serialize+0x173 sys/net/ifq.c:108 taskq_thread(ffff80000002c000) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f682320,0,ffff800020e1dd98,0,0,ffff800020e1dca4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f682320,0,ffff800020e1dd98,0,0,ffff800020e1dca4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8071bf74c0,ffff800020e1dd98,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc008,6,ffff800020e1dd98,0,ffff800020e1de80) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc008,ffff800020e1de30,ffff800020e1de80) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1df00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1df00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff51e0, count: -6