uvm_fault(0xffffffff8253e168, 0xfffffd0000000018, 0, 1) -> e kernel: page fault trap, code=0 Stopped at sbdrop+0x219: movl 0x18(%r15),%r13d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff8253e168, 0xfffffd0000000018, 0, 1) -> e sbdrop(ffff800020b73128,ffff800020b731b0,990) at sbdrop+0x219 sys/kern/uipc_socket2.c:964 end trace frame: 0xffff800020b730d0, count: 0 ddb{0}> trace sbdrop(ffff800020b73128,ffff800020b731b0,990) at sbdrop+0x219 sys/kern/uipc_socket2.c:964 sbflush(ffff800020b73128,ffff800020b731b0) at sbflush+0x93 sys/kern/uipc_socket2.c:933 sbrelease(ffff800020b73128,ffff800020b731b0) at sbrelease+0x2e sys/kern/uipc_socket2.c:527 sorflush(fffffd807d89bc90) at sorflush+0x14b sys/kern/uipc_socket.c:1131 sofree(fffffd807d89bc90,42) at sofree+0x147 sys/kern/uipc_socket.c:257 soclose(fffffd807d89bc90,0) at soclose+0x270 sys/kern/uipc_socket.c:338 soo_close(fffffd80651f4d28,ffff800020ac8290) at soo_close+0x40 fdrop(fffffd80651f4d28,ffff800020ac8290) at fdrop+0xc2 sys/kern/kern_descrip.c:1271 closef(fffffd80651f4d28,ffff800020ac8290) at closef+0x11d sys/kern/kern_descrip.c:1255 fdfree(ffff800020ac8290) at fdfree+0x101 sys/kern/kern_descrip.c:1187 exit1(ffff800020ac8290,0,0,1) at exit1+0x344 sys/kern/kern_exit.c:196 sys_exit(ffff800020ac8290,ffff800020b73580,ffff800020b735d0) at sys_exit+0x16 sys/kern/kern_exit.c:94 syscall(ffff800020b73650) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020b73650) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd6fd0, count: -14 ddb{0}> show registers rdi 0 rsi 0x6f6 rbp 0xffff800020b73080 rbx 0xfffffd806d16b400 rdx 0x4933e acpi_pdirpa+0x351a6 rcx 0 rax 0 r8 0xffffffff810febe8 sbdrop+0x248 r9 0x3 r10 0x4304f0756681bc51 r11 0x439811e254b7f52a r12 0x6f6 r13 0x1700 __ALIGN_SIZE+0x700 r14 0xffff800020b731b0 r15 0xfffffd0000000000 rip 0xffffffff810febb9 sbdrop+0x219 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b73020 ss 0x10 sbdrop+0x219: movl 0x18(%r15),%r13d ddb{0}> show proc PROC (syz-executor.1) pid=481379 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=70, nice=20 forw=0xffffffffffffffff, list=0xffff800020ac8508,0xffffffff82640d40 process=0xffff800020af5500 user=0xffff800020b6e000, vmspace=0xfffffd807f000cf0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 13068 150917 74424 0 2 0x482 syz-executor.1 59885 362587 74424 0 2 0x482 syz-executor.0 74424 132324 15613 0 3 0x82 thrsleep syz-fuzzer 74424 522136 15613 0 3 0x4000082 nanosleep syz-fuzzer 74424 456240 15613 0 3 0x4000082 thrsleep syz-fuzzer 74424 402998 15613 0 3 0x4000082 thrsleep syz-fuzzer 74424 396438 15613 0 3 0x4000082 thrsleep syz-fuzzer 74424 156721 15613 0 3 0x4000082 kqread syz-fuzzer 74424 326624 15613 0 3 0x4000082 thrsleep syz-fuzzer 74424 480945 15613 0 3 0x4000082 thrsleep syz-fuzzer 74424 87524 15613 0 3 0x4000082 thrsleep syz-fuzzer 74424 137935 15613 0 3 0x4000082 thrsleep syz-fuzzer 15613 2870 92191 0 3 0x10008a pause ksh 92191 221800 47690 0 3 0x92 select sshd 60681 252922 1 0 3 0x100083 ttyin getty 47690 379593 1 0 3 0x80 select sshd 5941 349010 65012 74 3 0x100092 bpf pflogd 65012 340354 1 0 3 0x80 netio pflogd 77111 408726 4921 73 3 0x100090 kqread syslogd 4921 271776 1 0 3 0x100082 netio syslogd 54056 63885 1 77 3 0x100090 poll dhclient 14688 298588 1 0 3 0x80 poll dhclient 42085 47991 0 0 3 0x14200 pgzero zerothread 6867 93742 0 0 3 0x14200 aiodoned aiodoned 16184 207704 0 0 3 0x14200 syncer update 67169 127663 0 0 3 0x14200 cleaner cleaner 56868 36498 0 0 7 0x14200 reaper 1213 385094 0 0 3 0x14200 pgdaemon pagedaemon 2187 185063 0 0 3 0x14200 bored crynlk 69128 364208 0 0 3 0x14200 bored crypto 60013 334113 0 0 3 0x40014200 acpi0 acpi0 33135 81396 0 0 3 0x40014200 idle1 85594 107707 0 0 3 0x14200 bored softnet 1992 143220 0 0 3 0x14200 bored systqmp 88305 275131 0 0 3 0x14200 bored systq 3358 325874 0 0 2 0x40014200 softclock 32188 6084 0 0 3 0x40014200 idle0 82470 94522 0 0 3 0x14200 pause smr 1 136761 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9534 6742K 7839K 78643K 11318 0 pcb 13 8K 8K 78643K 55 0 rtable 111 4K 5K 78643K 273 0 ifaddr 69 14K 15K 78643K 88 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1479 0 iov 0 0K 16K 78643K 18 0 mount 1 1K 1K 78643K 1 0 vnodes 1231 77K 77K 78643K 1397 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 92 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 13K 25K 78643K 156 0 sigio 0 0K 0K 78643K 6 0 proc 64 75K 95K 78643K 474 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 15 0 in_multi 59 3K 3K 78643K 68 0 ether_multi 1 0K 0K 78643K 4 0 mrt 0 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 225 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 111 37K 38K 78643K 1502 0 UVM aobj 8 2K 2K 78643K 8 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 32 0 NDP 10 0K 0K 78643K 17 0 temp 95 3011K 3075K 78643K 4240 0 kqueue 3 4K 8K 78643K 7 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 8 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 37 0 34 1 0 1 1 0 8 0 rtentry 112 50 0 6 2 0 2 2 0 8 0 unpcb 120 160 0 149 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpcb 544 253 0 247 2 0 2 2 0 8 1 inpcb 280 455 0 447 3 0 3 3 0 8 2 rttmr 72 2 0 2 2 1 1 1 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 3 0 3 2 1 1 1 0 8 1 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 90 0 90 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 pfstitem 24 24 0 6 1 0 1 1 0 8 0 pfstkey 112 24 0 6 1 0 1 1 0 8 0 pfstate 328 24 0 6 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 219 0 2 14 0 14 14 0 8 0 art_table 32 220 0 2 2 0 2 2 0 8 0 art_node 16 49 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 13 1 0 1 1 0 8 0 semapl 112 90 0 80 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1598 0 192 46 0 46 46 0 8 0 ffsino 272 1598 0 192 95 0 95 95 0 8 0 nchpl 144 2016 0 397 61 0 61 61 0 8 0 uvmvnodes 72 1796 0 0 33 0 33 33 0 8 0 vnodes 208 1796 0 0 95 0 95 95 0 8 0 namei 1024 5488 0 5488 1 0 1 1 0 8 1 percpumem 16 30 0 0 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 scxspl 192 5607 0 5607 8 5 3 7 0 8 3 plimitpl 152 21 0 13 1 0 1 1 0 8 0 sigapl 432 355 0 340 3 1 2 3 0 8 0 futexpl 56 3358 0 3358 1 0 1 1 0 8 1 knotepl 112 57 0 38 1 0 1 1 0 8 0 kqueuepl 104 34 0 32 1 0 1 1 0 8 0 pipelkpl 48 178 0 168 1 0 1 1 0 8 0 pipepl 120 356 0 337 3 1 2 2 0 8 1 fdescpl 496 356 0 340 3 0 3 3 0 8 0 filepl 152 2636 0 2532 8 1 7 7 0 8 2 lockfpl 104 30 0 29 1 0 1 1 0 8 0 lockfspl 48 12 0 11 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 127 0 118 1 0 1 1 0 8 0 zombiepl 144 341 0 339 1 0 1 1 0 8 0 processpl 896 371 0 339 4 0 4 4 0 8 0 procpl 632 738 0 695 5 0 5 5 0 8 1 sockpl 400 654 0 631 7 1 6 6 0 8 3 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 150 0 0 18 0 18 18 0 8 0 mtagpl 80 9 0 0 1 0 1 1 0 8 0 mbufpl 256 343 0 0 20 0 20 20 0 8 0 bufpl 280 6535 0 1342 371 0 371 371 0 8 0 anonpl 16 51376 0 35596 81 1 80 80 0 125 15 amapchunkpl 152 1931 0 1794 8 1 7 8 0 158 0 amappl16 192 1794 0 937 55 4 51 55 0 8 7 amappl15 184 66 0 61 1 0 1 1 0 8 0 amappl14 176 31 0 29 1 0 1 1 0 8 0 amappl12 160 4 0 4 2 2 0 1 0 8 0 amappl11 152 59 0 43 1 0 1 1 0 8 0 amappl10 144 70 0 64 1 0 1 1 0 8 0 amappl9 136 603 0 600 1 0 1 1 0 8 0 amappl8 128 116 0 95 1 0 1 1 0 8 0 amappl7 120 164 0 151 1 0 1 1 0 8 0 amappl6 112 66 0 58 1 0 1 1 0 8 0 amappl5 104 130 0 116 1 0 1 1 0 8 0 amappl4 96 609 0 578 1 0 1 1 0 8 0 amappl3 88 122 0 114 1 0 1 1 0 8 0 amappl2 80 1960 0 1887 3 1 2 3 0 8 0 amappl1 72 18119 0 17652 26 16 10 21 0 8 0 amappl 80 988 0 943 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 358 0 340 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 358 0 340 1 0 1 1 0 8 0 vmmpekpl 168 7174 0 7141 2 0 2 2 0 8 0 vmmpepl 168 50860 0 48816 119 15 104 114 0 357 12 vmsppl 368 357 0 340 2 0 2 2 0 8 0 pdppl 4096 723 0 682 6 0 6 6 0 8 0 pvpl 32 168908 0 149897 190 0 190 190 0 265 33 pmappl 232 357 0 340 3 1 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 177 0 4 5 0 5 5 0 8 0