login: uvm_fault(0xffffffff82898da8, 0xfffffd0000000018, 0, 1) -> e kernel: page fault trap, code=0 Stopped at sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82898da8, 0xfffffd0000000018, 0, 1) -> e sbdrop(ffff800023f0f608,ffff800023f0f690,980) at sbdrop+0x219 sys/kern/uipc_socket2.c:965 end trace frame: 0xffff800023f0f5b0, count: 0 ddb{1}> trace sbdrop(ffff800023f0f608,ffff800023f0f690,980) at sbdrop+0x219 sys/kern/uipc_socket2.c:965 sbflush(ffff800023f0f608,ffff800023f0f690) at sbflush+0x93 sys/kern/uipc_socket2.c:934 sbrelease(ffff800023f0f608,ffff800023f0f690) at sbrelease+0x2e sys/kern/uipc_socket2.c:525 sorflush(fffffd8064c5e1a8) at sorflush+0x14b sys/kern/uipc_socket.c:1137 sofree(fffffd8064c5e1a8,42) at sofree+0x147 sys/kern/uipc_socket.c:263 soclose(fffffd8064c5e1a8,80) at soclose+0x270 sys/kern/uipc_socket.c:344 soo_close(fffffd8064a62ab0,ffff800020e229d8) at soo_close+0x40 fdrop(fffffd8064a62ab0,ffff800020e229d8) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8064a62ab0,ffff800020e229d8) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e229d8) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e229d8,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020e229d8,ffff800023f0fa60,ffff800023f0fab0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800023f0fb30) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f0fb30) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc5300, count: -14 ddb{1}> show registers rdi 0 rsi 0x6e6 rbp 0xffff800023f0f560 rbx 0xfffffd80642c6e00 rdx 0x12 rcx 0 rax 0 r8 0xffffffff8223fa68 sbdrop+0x248 r9 0x3 r10 0xc37ea749b24c6ab6 r11 0xe813da198a13689 r12 0x6e6 r13 0x1700 __ALIGN_SIZE+0x700 r14 0xffff800023f0f690 r15 0xfffffd0000000000 rip 0xffffffff8223fa39 sbdrop+0x219 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023f0f500 ss 0x10 sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> show proc PROC (syz-executor.1) pid=196401 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e22288,0xffffffff828c1c80 process=0xffff800020e08ba8 user=0xffff800023f0a000, vmspace=0xfffffd807efffb80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37293 86380 21106 0 2 0x10 syz-executor.0 37293 49737 21106 0 2 0x4000010 syz-executor.0 47611 376301 0 0 3 0x14200 bored sosplice 40963 163652 58602 0 3 0x82 nanosleep syz-executor.1 21106 442396 58602 0 3 0x82 nanosleep syz-executor.0 58602 490255 43803 0 3 0x82 thrsleep syz-fuzzer 58602 306905 43803 0 3 0x4000082 nanosleep syz-fuzzer 58602 210722 43803 0 3 0x4000082 thrsleep syz-fuzzer 58602 97322 43803 0 3 0x4000082 thrsleep syz-fuzzer 58602 189225 43803 0 3 0x4000082 kqread syz-fuzzer 58602 204396 43803 0 3 0x4000082 thrsleep syz-fuzzer 58602 241112 43803 0 3 0x4000082 thrsleep syz-fuzzer 58602 411603 43803 0 3 0x4000082 thrsleep syz-fuzzer 58602 214417 43803 0 3 0x4000082 thrsleep syz-fuzzer 58602 144628 43803 0 3 0x4000082 thrsleep syz-fuzzer 43803 133449 86448 0 3 0x10008a pause ksh 86448 134088 7142 0 3 0x92 select sshd 70186 292876 1 0 3 0x100083 ttyin getty 7142 5112 1 0 3 0x80 select sshd 69073 177844 9066 74 3 0x100092 bpf pflogd 9066 498443 1 0 3 0x80 netio pflogd 54162 198017 99316 73 3 0x100090 kqread syslogd 99316 157597 1 0 3 0x100082 netio syslogd 24708 65332 1 77 7 0x100010 dhclient 16824 137000 1 0 3 0x80 poll dhclient 9507 162989 0 0 3 0x14200 bored smr 19858 303513 0 0 2 0x14200 zerothread 69613 510803 0 0 3 0x14200 aiodoned aiodoned 42500 12438 0 0 3 0x14200 syncer update 84794 520084 0 0 3 0x14200 cleaner cleaner 11181 445290 0 0 3 0x14200 reaper reaper 63564 227299 0 0 3 0x14200 pgdaemon pagedaemon 32678 287934 0 0 3 0x14200 bored crynlk 10373 436312 0 0 3 0x14200 bored crypto 66384 329192 0 0 3 0x40014200 acpi0 acpi0 80229 483628 0 0 3 0x40014200 idle1 91950 23399 0 0 3 0x14200 bored softnet 9166 459968 0 0 3 0x14200 bored systqmp 83147 170106 0 0 3 0x14200 bored systq 57979 415375 0 0 3 0x40014200 bored softclock 42804 382737 0 0 3 0x40014200 idle0 1 358081 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9511 6413K 6787K 78643K 10921 0 pcb 13 8K 8K 78643K 39 0 rtable 110 5K 6K 78643K 286 0 ifaddr 73 15K 15K 78643K 112 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1499 0 iov 0 0K 16K 78643K 39 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1321 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 38 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 247 0 sigio 0 0K 0K 78643K 52 0 proc 61 63K 83K 78643K 476 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 18 0 in_multi 55 2K 2K 78643K 96 0 ether_multi 1 0K 0K 78643K 4 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 122 38K 43K 78643K 1759 0 UVM aobj 8 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 25 0 NDP 11 0K 0K 78643K 23 0 temp 103 3852K 3916K 78643K 3594 0 kqueue 4 5K 10K 78643K 20 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 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 287 0 284 1 0 1 1 0 8 0 rtentry 112 59 0 17 2 0 2 2 0 8 0 unpcb 120 314 0 300 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 544 69 0 62 1 0 1 1 0 8 0 inpcb 296 237 0 227 2 0 2 2 0 8 1 nd6 48 13 0 9 1 0 1 1 0 8 0 pkpcb 40 4 0 4 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 pfrktable 1344 5 0 1 1 0 1 1 0 8 0 pfstitem 24 13 0 4 1 0 1 1 0 8 0 pfstkey 112 13 0 4 1 0 1 1 0 8 0 pfstate 328 13 0 4 2 0 2 2 0 8 0 pfrule 1360 24 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 223 0 42 13 0 13 13 0 8 0 art_table 32 224 0 42 2 0 2 2 0 8 0 art_node 16 58 0 19 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 3 1 0 1 1 0 8 0 semupl 112 3 0 3 2 1 1 1 0 8 1 semapl 112 32 0 22 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1724 0 318 89 1 88 89 0 8 0 ffsino 272 1724 0 318 95 1 94 95 0 8 0 nchpl 144 2246 0 635 60 0 60 60 0 8 0 uvmvnodes 72 1834 0 0 34 0 34 34 0 8 0 vnodes 208 1834 0 0 97 0 97 97 0 8 0 namei 1024 6074 0 6074 1 0 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 scxspl 192 6741 0 6741 8 6 2 7 0 8 2 plimitpl 152 37 0 29 1 0 1 1 0 8 0 sigapl 424 463 0 430 4 0 4 4 0 8 0 futexpl 56 3689 0 3689 1 0 1 1 0 8 1 knotepl 112 91 0 72 1 0 1 1 0 8 0 kqueuepl 144 42 0 39 1 0 1 1 0 8 0 pipelkpl 48 354 0 344 1 0 1 1 0 8 0 pipepl 120 708 0 689 1 0 1 1 0 8 0 fdescpl 496 447 0 430 3 0 3 3 0 8 0 filepl 152 3209 0 3099 6 0 6 6 0 8 1 lockfpl 104 67 0 66 1 0 1 1 0 8 0 lockfspl 48 22 0 21 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 227 0 217 1 0 1 1 0 8 0 zombiepl 144 431 0 430 1 0 1 1 0 8 0 processpl 984 463 0 430 5 0 5 5 0 8 0 procpl 624 987 0 944 4 0 4 4 0 8 0 sosppl 128 7 0 7 2 1 1 1 0 8 1 sockpl 400 845 0 817 4 0 4 4 0 8 1 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 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 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 157 0 0 19 0 19 19 0 8 0 mtagpl 96 28 0 0 1 0 1 1 0 8 0 mbufpl 256 276 0 0 17 0 17 17 0 8 0 bufpl 280 3805 0 137 262 0 262 262 0 8 0 anonpl 16 54431 0 37781 70 1 69 69 0 124 0 amapchunkpl 152 2335 0 2181 9 0 9 9 0 158 0 amappl16 192 1914 0 995 47 0 47 47 0 8 1 amappl15 184 105 0 102 1 0 1 1 0 8 0 amappl14 176 26 0 21 1 0 1 1 0 8 0 amappl13 168 139 0 134 1 0 1 1 0 8 0 amappl12 160 9 0 7 2 1 1 1 0 8 0 amappl11 152 153 0 136 1 0 1 1 0 8 0 amappl10 144 28 0 19 1 0 1 1 0 8 0 amappl9 136 385 0 384 1 0 1 1 0 8 0 amappl8 128 339 0 310 2 1 1 2 0 8 0 amappl7 120 119 0 107 1 0 1 1 0 8 0 amappl6 112 129 0 125 1 0 1 1 0 8 0 amappl5 104 241 0 226 1 0 1 1 0 8 0 amappl4 96 700 0 667 1 0 1 1 0 8 0 amappl3 88 114 0 108 1 0 1 1 0 8 0 amappl2 80 2631 0 2550 2 0 2 2 0 8 0 amappl1 72 19488 0 19041 23 13 10 18 0 8 0 amappl 80 1241 0 1194 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 9 0 2 1 0 1 1 0 8 0 uaddrrnd 24 449 0 430 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 449 0 430 1 0 1 1 0 8 0 vmmpekpl 168 8463 0 8429 2 0 2 2 0 8 0 vmmpepl 168 61293 0 59123 119 16 103 115 0 357 8 vmsppl 368 448 0 430 2 0 2 2 0 8 0 pdppl 4096 905 0 862 6 0 6 6 0 8 0 pvpl 32 181975 0 162075 169 2 167 167 0 265 5 pmappl 232 448 0 430 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 263 0 5 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(ffffffff82705ff0) 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(ffffffff828be9d8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828be9d8) 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(ffffffff828be9d8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828be9d8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 solock(fffffd806f681640) at solock+0x66 sys/kern/uipc_socket2.c:292 sosend(fffffd806f681640,0,ffff800020e177e0,0,0,80) at sosend+0x201 sys/kern/uipc_socket.c:488 sendit(ffff800020ddc4e8,5,ffff800020e17940,0,ffff800020e17a30) at sendit+0x52b sys/kern/uipc_syscalls.c:657 sys_sendmsg(ffff800020ddc4e8,ffff800020e179e0,ffff800020e17a30) at sys_sendmsg+0x1a4 sys/kern/uipc_syscalls.c:562 syscall(ffff800020e17ab0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e17ab0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffefeb0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> trace sbdrop(ffff800023f0f608,ffff800023f0f690,980) at sbdrop+0x219 sys/kern/uipc_socket2.c:965 sbflush(ffff800023f0f608,ffff800023f0f690) at sbflush+0x93 sys/kern/uipc_socket2.c:934 sbrelease(ffff800023f0f608,ffff800023f0f690) at sbrelease+0x2e sys/kern/uipc_socket2.c:525 sorflush(fffffd8064c5e1a8) at sorflush+0x14b sys/kern/uipc_socket.c:1137 sofree(fffffd8064c5e1a8,42) at sofree+0x147 sys/kern/uipc_socket.c:263 soclose(fffffd8064c5e1a8,80) at soclose+0x270 sys/kern/uipc_socket.c:344 soo_close(fffffd8064a62ab0,ffff800020e229d8) at soo_close+0x40 fdrop(fffffd8064a62ab0,ffff800020e229d8) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8064a62ab0,ffff800020e229d8) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e229d8) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e229d8,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020e229d8,ffff800023f0fa60,ffff800023f0fab0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800023f0fb30) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f0fb30) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc5300, count: -14