login: uvm_fault(0xffffffff827df520, 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(0xffffffff827df520, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f683320,0,ffff800020e1d168,0,0,ffff800020e1d074) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683320,0,ffff800020e1d168,0,0,ffff800020e1d074) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d0b0, count: 0 ddb{1}> trace soreceive(fffffd806f683320,0,ffff800020e1d168,0,0,ffff800020e1d074) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683320,0,ffff800020e1d168,0,0,ffff800020e1d074) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80785f65f0,ffff800020e1d168,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d168,0,ffff800020e1d250) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d200,ffff800020e1d250) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d2d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d2d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffef410, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d050 rbx 0xfffffd80648cf500 rdx 0x303f4 acpi_pdirpa+0x1c25c rcx 0 rax 0 r8 0xffffffff818e1c51 soreceive+0x5c1 r9 0x3 r10 0x735172d45acae670 r11 0x108ad739dd6e68fc r12 0x4d2 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f683320 rip 0xffffffff818e2790 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1cf60 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=135633 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcea8,0xffff800020ddcc48 process=0xffff800020df1348 user=0xffff800020e18000, vmspace=0xfffffd807efff2e0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 43251 453668 92583 0 2 0 syz-executor.1 43251 114420 92583 0 3 0x4000080 pipewr syz-executor.1 51495 92320 55242 0 3 0x80 nanosleep syz-executor.0 51495 615 55242 0 7 0x4000000 syz-executor.0 51495 348207 55242 0 3 0x4000080 fsleep syz-executor.0 73390 92469 1 0 3 0x100083 ttyin getty 74994 313429 0 0 3 0x14200 bored sosplice 92583 170134 9715 0 3 0x82 nanosleep syz-executor.1 55242 137859 9715 0 3 0x82 nanosleep syz-executor.0 9715 251449 35187 0 2 0x2 syz-fuzzer 9715 109779 35187 0 3 0x4000082 nanosleep syz-fuzzer 9715 155502 35187 0 3 0x4000082 thrsleep syz-fuzzer 9715 165300 35187 0 3 0x4000082 thrsleep syz-fuzzer 9715 25458 35187 0 3 0x4000082 thrsleep syz-fuzzer 9715 222579 35187 0 2 0x4000002 syz-fuzzer 9715 437781 35187 0 3 0x4000082 thrsleep syz-fuzzer 9715 478074 35187 0 3 0x4000082 thrsleep syz-fuzzer 9715 122722 35187 0 3 0x4000082 thrsleep syz-fuzzer 9715 57348 35187 0 3 0x4000082 thrsleep syz-fuzzer 9715 143928 35187 0 3 0x4000082 thrsleep syz-fuzzer 35187 192343 24455 0 3 0x10008a pause ksh 24455 346147 91972 0 3 0x92 select sshd 91972 74977 1 0 3 0x80 select sshd 3134 290266 41920 74 3 0x100092 bpf pflogd 41920 475622 1 0 3 0x80 netio pflogd 77959 335275 84962 73 3 0x100090 kqread syslogd 84962 282467 1 0 3 0x100082 netio syslogd 87014 501988 1 77 2 0x100010 dhclient *25536 135633 1 0 7 0 dhclient 664 220762 0 0 3 0x14200 bored smr 97856 505736 0 0 2 0x14200 zerothread 29152 215570 0 0 3 0x14200 aiodoned aiodoned 53619 38683 0 0 3 0x14200 syncer update 96605 84517 0 0 3 0x14200 cleaner cleaner 88091 12963 0 0 3 0x14200 reaper reaper 60103 378015 0 0 3 0x14200 pgdaemon pagedaemon 17983 464605 0 0 3 0x14200 bored crynlk 51645 140651 0 0 3 0x14200 bored crypto 30947 286104 0 0 3 0x40014200 acpi0 acpi0 17530 441253 0 0 3 0x40014200 idle1 18169 58559 0 0 3 0x14200 bored softnet 15598 43615 0 0 2 0x14200 systqmp 23286 249920 0 0 3 0x14200 bored systq 2635 280707 0 0 3 0x40014200 bored softclock 6230 276924 0 0 3 0x40014200 idle0 1 319052 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 25536 (dhclient) thread 0xffff800020ddc278 (135633) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82910c50) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9509 6413K 6674K 78643K 10845 0 pcb 13 8K 8K 78643K 43 0 rtable 77 2K 3K 78643K 302 0 ifaddr 61 12K 15K 78643K 93 0 counters 41 33K 34K 78643K 45 0 ioctlops 0 0K 4K 78643K 1494 0 iov 0 0K 16K 78643K 31 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1314 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 182 0 sigio 0 0K 0K 78643K 10 0 proc 61 63K 95K 78643K 471 0 subproc 32 2K 2K 78643K 36 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2 0 in_multi 49 2K 3K 78643K 90 0 ether_multi 1 0K 0K 78643K 1 0 mrt 0 0K 0K 78643K 3 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 224 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 123 38K 54K 78643K 1539 0 UVM aobj 7 2K 2K 78643K 9 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 10 0K 0K 78643K 22 0 temp 86 3860K 3925K 78643K 8542 0 kqueue 3 4K 18K 78643K 26 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 8 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 28 0 26 1 0 1 1 0 8 0 rtentry 112 66 0 36 2 0 2 2 0 8 0 unpcb 120 107 0 97 1 0 1 1 0 8 0 syncache 264 10 0 10 2 2 0 1 0 8 0 tcpqe 32 1148 0 1148 1 1 0 1 0 8 0 tcpcb 544 66 0 62 1 0 1 1 0 8 0 inpcb 296 362 0 352 2 1 1 2 0 8 0 nd6 48 13 0 12 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 1 0 1 0 8 0 pffrag 232 3 0 3 2 2 0 1 0 482 0 pffrnode 88 3 0 3 2 2 0 1 0 8 0 pffrent 40 137 0 137 1 1 0 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 pfstitem 24 25 0 6 1 0 1 1 0 8 0 pfstkey 112 25 0 6 1 0 1 1 0 8 0 pfstate 328 25 0 6 3 0 3 3 0 8 0 pfrule 1360 24 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 286 0 129 12 0 12 12 0 8 0 art_table 32 287 0 129 2 0 2 2 0 8 0 art_node 16 65 0 29 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semupl 112 7 0 7 1 1 0 1 0 8 0 semapl 112 11 0 1 1 0 1 1 0 8 0 shmpl 112 7 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1649 0 243 89 0 89 89 0 8 0 ffsino 272 1649 0 243 96 1 95 95 0 8 0 nchpl 144 2078 0 468 60 0 60 60 0 8 0 uvmvnodes 72 1753 0 0 32 0 32 32 0 8 0 vnodes 208 1753 0 0 93 0 93 93 0 8 0 namei 1024 5653 0 5653 3 2 1 1 0 8 1 percpumem 16 33 0 2 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 1 0 0 1 0 1 1 0 8 0 scxspl 192 6334 0 6334 8 7 1 7 0 8 1 plimitpl 152 26 0 18 1 0 1 1 0 8 0 sigapl 424 399 0 366 4 0 4 4 0 8 0 futexpl 56 2427 0 2426 2 1 1 1 0 8 0 knotepl 112 88 0 69 1 0 1 1 0 8 0 kqueuepl 144 45 0 42 1 0 1 1 0 8 0 pipelkpl 48 92 0 82 1 0 1 1 0 8 0 pipepl 120 184 0 165 1 0 1 1 0 8 0 fdescpl 496 383 0 366 3 0 3 3 0 8 0 filepl 152 2165 0 2061 6 1 5 5 0 8 0 lockfpl 104 22 0 21 1 0 1 1 0 8 0 lockfspl 48 11 0 10 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 185 0 176 1 0 1 1 0 8 0 zombiepl 144 366 0 366 2 1 1 1 0 8 1 processpl 984 399 0 366 6 1 5 5 0 8 0 procpl 624 758 0 712 4 0 4 4 0 8 0 sosppl 128 9 0 9 1 1 0 1 0 8 0 sockpl 400 508 0 486 4 1 3 3 0 8 0 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 226 0 0 28 0 28 28 0 8 0 mtagpl 96 22 0 0 1 0 1 1 0 8 0 mbufpl 256 489 0 0 31 0 31 31 0 8 0 bufpl 280 3808 0 133 263 0 263 263 0 8 0 anonpl 16 48660 0 33229 65 3 62 64 0 124 0 amapchunkpl 152 3009 0 2862 20 4 16 20 0 158 8 amappl16 192 1584 0 751 43 1 42 43 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 105 0 99 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 79 0 77 2 1 1 1 0 8 0 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 16 0 11 1 0 1 1 0 8 0 amappl9 136 467 0 463 1 0 1 1 0 8 0 amappl8 128 416 0 382 2 0 2 2 0 8 0 amappl7 120 120 0 109 1 0 1 1 0 8 0 amappl6 112 29 0 21 1 0 1 1 0 8 0 amappl5 104 204 0 188 1 0 1 1 0 8 0 amappl4 96 563 0 532 1 0 1 1 0 8 0 amappl3 88 177 0 169 1 0 1 1 0 8 0 amappl2 80 2108 0 2029 2 0 2 2 0 8 0 amappl1 72 18468 0 18006 23 13 10 18 0 8 0 amappl 80 1019 0 970 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 8 0 2 1 0 1 1 0 8 0 uaddrrnd 24 384 0 366 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 384 0 366 1 0 1 1 0 8 0 vmmpekpl 168 7026 0 6993 2 0 2 2 0 8 0 vmmpepl 168 53377 0 51265 118 16 102 113 0 357 10 vmsppl 368 383 0 366 2 0 2 2 0 8 0 pdppl 4096 775 0 733 7 1 6 6 0 8 0 pvpl 32 168992 0 150304 156 2 154 156 0 265 3 pmappl 232 383 0 366 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 289 0 8 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82714ff0) 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(ffffffff82910a48) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82910a48) at __mp_lock+0x12e 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(ffffffff82910a48) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82910a48) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff800020e084f8,ffff800020e08570,70b61b8b52a,ffffffff82417a2c,ffffffff81587c10,1d) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 syscall(ffff800020ed36c0) at syscall+0x3dc mi_syscall sys/sys/syscall_mi.h:87 [inline] syscall(ffff800020ed36c0) at syscall+0x3dc sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70da83909a0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f683320,0,ffff800020e1d168,0,0,ffff800020e1d074) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f683320,0,ffff800020e1d168,0,0,ffff800020e1d074) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80785f65f0,ffff800020e1d168,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d168,0,ffff800020e1d250) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d200,ffff800020e1d250) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d2d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d2d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffef410, count: -6