uvm_fault(0xffffffff8260f250, 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(0xffffffff8260f250, 0xfffffd0000000018, 0, 1) -> e sbdrop(ffff800021587508,ffff800021587590,686) at sbdrop+0x219 sys/kern/uipc_socket2.c:963 end trace frame: 0xffff8000215874b0, count: 0 ddb{1}> trace sbdrop(ffff800021587508,ffff800021587590,686) at sbdrop+0x219 sys/kern/uipc_socket2.c:963 sbflush(ffff800021587508,ffff800021587590) at sbflush+0x93 sys/kern/uipc_socket2.c:932 sbrelease(ffff800021587508,ffff800021587590) at sbrelease+0x2e sys/kern/uipc_socket2.c:526 sorflush(fffffd8063021970) at sorflush+0x13d sys/kern/uipc_socket.c:1119 sofree(fffffd8063021970,42) at sofree+0x147 sys/kern/uipc_socket.c:255 soclose(fffffd8063021970,0) at soclose+0x270 sys/kern/uipc_socket.c:327 soo_close(fffffd806c9d0d20,ffff800020ad73d8) at soo_close+0x40 fdrop(fffffd806c9d0d20,ffff800020ad73d8) at fdrop+0xc2 sys/kern/kern_descrip.c:1271 closef(fffffd806c9d0d20,ffff800020ad73d8) at closef+0x11d sys/kern/kern_descrip.c:1255 fdfree(ffff800020ad73d8) at fdfree+0x101 sys/kern/kern_descrip.c:1187 exit1(ffff800020ad73d8,0,0,1) at exit1+0x344 sys/kern/kern_exit.c:196 sys_exit(ffff800020ad73d8,ffff800021587950,ffff8000215879a0) at sys_exit+0x16 sys/kern/kern_exit.c:94 syscall(ffff800021587a20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800021587a20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd0d70, count: -14 ddb{1}> show registers rdi 0 rsi 0x44e rbp 0xffff800021587460 rbx 0xfffffd8070aebe00 rdx 0x2664a acpi_pdirpa+0x124b2 rcx 0 rax 0 r8 0xffffffff810d5c78 sbdrop+0x248 r9 0x3 r10 0xb7fe17269611d914 r11 0x89fe441c13b79430 r12 0x44e r13 0xc00 r14 0xffff800021587590 r15 0xfffffd0000000000 rip 0xffffffff810d5c49 sbdrop+0x219 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021587400 ss 0x10 sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> show proc PROC (syz-executor.1) pid=282943 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ad78c8,0xffff800020ad6790 process=0xffff800020af4700 user=0xffff800021582000, vmspace=0xfffffd8070688740 estcpu=36, cpticks=5, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51040 118549 99032 0 2 0 syz-executor.0 51040 476440 99032 0 3 0x4000080 fsleep syz-executor.0 79290 345067 0 0 3 0x14200 bored sosplice 99032 205613 27315 0 3 0x82 nanosleep syz-executor.0 5775 112636 27315 0 3 0x82 nanosleep syz-executor.1 27315 298211 13764 0 3 0x82 thrsleep syz-fuzzer 27315 402840 13764 0 3 0x4000082 nanosleep syz-fuzzer 27315 86010 13764 0 3 0x4000082 thrsleep syz-fuzzer 27315 138420 13764 0 3 0x4000082 thrsleep syz-fuzzer 27315 119070 13764 0 3 0x4000082 thrsleep syz-fuzzer 27315 51891 13764 0 3 0x4000082 thrsleep syz-fuzzer 27315 406135 13764 0 3 0x4000082 thrsleep syz-fuzzer 27315 85808 13764 0 3 0x4000082 thrsleep syz-fuzzer 27315 124055 13764 0 3 0x4000082 thrsleep syz-fuzzer 27315 50484 13764 0 3 0x4000082 kqread syz-fuzzer 13764 277393 41229 0 3 0x10008a pause ksh 41229 60933 17488 0 3 0x92 select sshd 66830 409927 1 0 3 0x100083 ttyin getty 17488 243940 1 0 3 0x80 select sshd 54734 183810 88598 74 3 0x100092 bpf pflogd 88598 114140 1 0 3 0x80 netio pflogd 25259 71424 80752 73 3 0x100090 kqread syslogd 80752 92643 1 0 3 0x100082 netio syslogd 30383 152200 1 77 3 0x100090 poll dhclient 75413 44824 1 0 7 0 dhclient 34459 86081 0 0 2 0x14200 zerothread 55916 510174 0 0 3 0x14200 aiodoned aiodoned 54446 93554 0 0 3 0x14200 syncer update 17904 17414 0 0 3 0x14200 cleaner cleaner 37870 83096 0 0 3 0x14200 reaper reaper 64555 462944 0 0 3 0x14200 pgdaemon pagedaemon 53265 72397 0 0 3 0x14200 bored crynlk 44508 324001 0 0 3 0x14200 bored crypto 60481 176294 0 0 3 0x40014200 acpi0 acpi0 14442 151016 0 0 3 0x40014200 idle1 52975 496752 0 0 3 0x14200 bored softnet 24380 452419 0 0 3 0x14200 bored systqmp 79991 224865 0 0 3 0x14200 bored systq 49124 286662 0 0 3 0x40014200 bored softclock 66330 231439 0 0 3 0x40014200 idle0 17804 61285 0 0 3 0x14200 bored smr 1 134888 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 9526 6426K 6942K 78643K 11363 0 pcb 13 10K 12K 78643K 64 0 rtable 117 4K 5K 78643K 401 0 ifaddr 86 17K 17K 78643K 137 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1495 0 iov 0 0K 16K 78643K 55 0 mount 1 1K 1K 78643K 1 0 vnodes 1214 76K 77K 78643K 1471 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 85 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 6 17K 25K 78643K 349 0 sigio 0 0K 0K 78643K 5 0 proc 65 75K 95K 78643K 520 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 2K 78643K 540 0 in_multi 71 3K 3K 78643K 169 0 ether_multi 1 0K 0K 78643K 7 0 mrt 0 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 241 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 133 87K 87K 78643K 2220 0 UVM aobj 28 6K 6K 78643K 30 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 29 0 NDP 13 0K 0K 78643K 27 0 temp 136 3014K 3086K 78643K 9238 0 kqueue 3 4K 10K 78643K 30 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 12 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 84 0 81 1 0 1 1 0 8 0 rtentry 112 69 0 22 2 0 2 2 0 8 0 unpcb 120 208 0 195 2 0 2 2 0 8 1 syncache 264 5 0 5 2 2 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 227 0 227 1 1 0 1 0 8 0 tcpcb 544 342 0 336 13 6 7 13 0 8 6 inpcb 280 1864 0 1853 10 3 7 10 0 8 6 rttmr 72 3 0 3 2 1 1 1 0 8 1 nd6 48 6 0 2 1 0 1 1 0 8 0 ppxss 1128 6 0 6 2 1 1 1 0 8 1 pffrag 232 7 0 7 2 1 1 1 0 482 1 pffrnode 88 7 0 7 2 1 1 1 0 8 1 pffrent 40 315 0 315 2 1 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 24 103 0 7 1 0 1 1 0 8 0 pfstkey 112 103 0 7 3 0 3 3 0 8 0 pfstate 328 103 0 7 8 0 8 8 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 256 285 0 55 15 0 15 15 0 8 0 art_table 32 286 0 55 2 0 2 2 0 8 0 art_node 16 68 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 81 0 41 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 83 0 73 1 0 1 1 0 8 0 shmpl 112 28 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1887 0 480 46 0 46 46 0 8 0 ffsino 272 1887 0 480 95 0 95 95 0 8 0 nchpl 144 2570 0 971 61 0 61 61 0 8 0 uvmvnodes 72 2128 0 0 39 0 39 39 0 8 0 vnodes 208 2128 0 0 112 0 112 112 0 8 0 namei 1024 7098 0 7098 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 7 0 0 1 0 1 1 0 8 0 vmpool 560 9 0 2 1 0 1 1 0 8 0 scxspl 192 7997 0 7997 6 4 2 4 0 8 2 plimitpl 152 41 0 33 1 0 1 1 0 8 0 sigapl 432 545 0 529 3 1 2 3 0 8 0 futexpl 56 8754 0 8753 1 0 1 1 0 8 0 knotepl 112 99 0 80 1 0 1 1 0 8 0 kqueuepl 104 185 0 183 4 2 2 4 0 8 1 pipepl 112 266 0 247 1 0 1 1 0 8 0 fdescpl 496 546 0 529 3 0 3 3 0 8 0 filepl 152 4641 0 4534 14 4 10 14 0 8 5 lockfpl 104 72 0 71 1 0 1 1 0 8 0 lockfspl 48 29 0 28 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 96 304 0 293 1 0 1 1 0 8 0 zombiepl 144 530 0 529 1 0 1 1 0 8 0 processpl 896 562 0 529 4 0 4 4 0 8 0 procpl 632 1378 0 1335 5 0 5 5 0 8 1 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 1 0 1 1 0 1 1 0 8 1 sockpl 384 2159 0 2133 15 7 8 14 0 8 5 mcl64k 65536 512 0 0 64 0 64 64 0 8 1 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 16 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 165 0 0 20 0 20 20 0 8 0 mtagpl 80 18 0 0 1 0 1 1 0 8 0 mbufpl 256 665 0 0 41 0 41 41 0 8 0 bufpl 280 7161 0 1346 416 0 416 416 0 8 0 anonpl 16 71162 0 55857 79 1 78 78 0 125 15 amapchunkpl 152 3163 0 3011 8 1 7 8 0 158 0 amappl16 192 2984 0 2160 57 7 50 53 0 8 8 amappl15 184 60 0 57 1 0 1 1 0 8 0 amappl14 176 34 0 33 1 0 1 1 0 8 0 amappl13 168 32 0 32 2 2 0 1 0 8 0 amappl12 160 2 0 2 1 1 0 1 0 8 0 amappl11 152 62 0 47 1 0 1 1 0 8 0 amappl10 144 15 0 10 1 0 1 1 0 8 0 amappl9 136 629 0 624 1 0 1 1 0 8 0 amappl8 128 134 0 109 1 0 1 1 0 8 0 amappl7 120 110 0 97 1 0 1 1 0 8 0 amappl6 112 73 0 66 1 0 1 1 0 8 0 amappl5 104 139 0 125 1 0 1 1 0 8 0 amappl4 96 836 0 801 1 0 1 1 0 8 0 amappl3 88 129 0 120 1 0 1 1 0 8 0 amappl2 80 3421 0 3337 3 1 2 3 0 8 0 amappl1 72 22267 0 21788 25 15 10 20 0 8 0 amappl 80 1653 0 1597 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 29 0 2 1 0 1 1 0 8 0 uaddrrnd 24 555 0 531 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 555 0 531 1 0 1 1 0 8 0 vmmpekpl 168 7926 0 7889 2 0 2 2 0 8 0 vmmpepl 168 75360 0 73230 124 18 106 117 0 357 13 vmsppl 368 554 0 531 3 0 3 3 0 8 0 pdppl 4096 1117 0 1069 7 0 7 7 0 8 0 pvpl 32 229462 0 210843 194 4 190 190 0 265 37 pmappl 232 554 0 531 3 1 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 271 0 9 8 0 8 8 0 8 0