uvm_fault(0xfffffd806d6289a0, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pool_do_get+0x2c7: movq 0(%rax),%rax TID PID UID PRFLAGS PFLAGS CPU COMMAND *262405 53184 0 0 0x4000000 0 syz-executor.6 pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline] pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765 pool_get(ffffffff82a5cc20,9) at pool_get+0xb3 sys/kern/subr_pool.c:582 socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:146 [inline] socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 sys/kern/uipc_socket.c:177 sys_socket(ffff800021777ce8,ffff80002b463348,ffff80002b4633a0) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:98 syscall(ffff80002b463410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1bfcf2a8050, count: 9 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806d6289a0, 0x0, 0, 1) -> e ddb> trace pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline] pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765 pool_get(ffffffff82a5cc20,9) at pool_get+0xb3 sys/kern/subr_pool.c:582 socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:146 [inline] socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 sys/kern/uipc_socket.c:177 sys_socket(ffff800021777ce8,ffff80002b463348,ffff80002b4633a0) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:98 syscall(ffff80002b463410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1bfcf2a8050, count: -6 ddb> show registers rdi 0xffff800024c04000 rsi 0x39 rbp 0xffff80002b463190 rbx 0x8 rdx 0xffff800024c04000 rcx 0x38 rax 0 r8 0xffffffff818c66b0 uvm_map_inentry_pc r9 0x1c r10 0 r11 0x2479e6ec821f1927 r12 0x8 r13 0xfffffd80793df8f0 r14 0xffffffff82a5cc20 socket_pool r15 0xfffffd80793dff90 rip 0xffffffff81423717 pool_do_get+0x2c7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002b463110 ss 0x10 pool_do_get+0x2c7: movq 0(%rax),%rax ddb> show proc PROC (syz-executor.6) pid=262405 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800021776008,0xffff800026614020 process=0xffff8000217113b0 user=0xffff80002b45e000, vmspace=0xfffffd806d6289a0 estcpu=30, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 26663 31072 66059 0 2 0 syz-executor.0 26663 500153 66059 0 2 0x4000000 syz-executor.0 53184 274540 35656 0 2 0 syz-executor.6 *53184 262405 35656 0 7 0x4000000 syz-executor.6 1800 326519 10180 0 2 0 syz-executor.7 1800 318390 10180 0 3 0x4000080 fsleep syz-executor.7 1800 86467 10180 0 3 0x4000080 fsleep syz-executor.7 40565 299822 7065 0 2 0 syz-executor.2 40565 97484 7065 0 3 0x4000080 fsleep syz-executor.2 40565 199840 7065 0 3 0x4000080 fsleep syz-executor.2 40565 68820 7065 0 3 0x4000080 fsleep syz-executor.2 16597 150742 90284 0 2 0 syz-executor.4 16597 494371 90284 0 3 0x4000080 fsleep syz-executor.4 7065 147141 51628 0 3 0x82 nanoslp syz-executor.2 35656 270085 51628 0 3 0x82 nanoslp syz-executor.6 66059 337595 51628 0 3 0x82 nanoslp syz-executor.0 34983 93711 51628 0 3 0x82 nanoslp syz-executor.3 90284 338925 51628 0 3 0x82 nanoslp syz-executor.4 63937 482604 51628 0 3 0x82 nanoslp syz-executor.1 94754 135305 0 0 3 0x14200 acct acct 59834 280416 0 0 3 0x14200 bored sosplice 30097 113451 0 0 3 0x14280 nfsidl nfsio 23598 158785 0 0 3 0x14280 nfsidl nfsio 2154 42841 0 0 3 0x14280 nfsidl nfsio 37872 164011 0 0 3 0x14280 nfsidl nfsio 74553 88299 0 0 3 0x14280 nfsidl nfsio 81041 110693 0 0 3 0x14280 nfsidl nfsio 59241 368435 0 0 3 0x14280 nfsidl nfsio 32970 522957 0 0 3 0x14280 nfsidl nfsio 46923 273968 0 0 3 0x14280 nfsidl nfsio 73095 161153 0 0 3 0x14280 nfsidl nfsio 12198 303883 0 0 3 0x14280 nfsidl nfsio 87078 33050 0 0 3 0x14280 nfsidl nfsio 33240 420041 0 0 3 0x14280 nfsidl nfsio 31399 415918 0 0 3 0x14280 nfsidl nfsio 24373 253923 0 0 3 0x14280 nfsidl nfsio 74684 367276 0 0 3 0x14280 nfsidl nfsio 83387 154125 0 0 3 0x14280 nfsidl nfsio 25154 366799 0 0 3 0x14280 nfsidl nfsio 26100 51204 0 0 3 0x14280 nfsidl nfsio 75549 519426 0 0 3 0x14280 nfsidl nfsio 10180 320571 51628 0 3 0x82 nanoslp syz-executor.7 51628 348417 64541 0 3 0x82 wait syz-fuzzer 51628 451691 64541 0 3 0x4000082 thrsleep syz-fuzzer 51628 307010 64541 0 3 0x4000082 thrsleep syz-fuzzer 51628 91866 64541 0 3 0x4000082 thrsleep syz-fuzzer 51628 333962 64541 0 3 0x4000082 wait syz-fuzzer 51628 69681 64541 0 3 0x4000082 wait syz-fuzzer 51628 143005 64541 0 3 0x4000082 wait syz-fuzzer 51628 422625 64541 0 3 0x4000082 thrsleep syz-fuzzer 51628 352147 64541 0 3 0x4000082 wait syz-fuzzer 51628 211325 64541 0 3 0x4000082 wait syz-fuzzer 51628 212547 64541 0 3 0x4000082 kqread syz-fuzzer 51628 148156 64541 0 3 0x4000082 thrsleep syz-fuzzer 51628 159088 64541 0 3 0x4000082 wait syz-fuzzer 51628 226508 64541 0 3 0x4000082 thrsleep syz-fuzzer 64541 217209 89405 0 3 0x10008a sigsusp ksh 89405 211936 54282 0 3 0x9a kqread sshd 66115 309745 1 0 3 0x100083 ttyopn getty 54282 370466 1 0 3 0x88 kqread sshd 10952 333312 59355 73 3 0x1100090 kqread syslogd 59355 135275 1 0 3 0x100082 netio syslogd 41970 48169 1 0 3 0x100080 kqread resolvd 31438 426342 81589 77 3 0x100092 kqread dhcpleased 77571 40692 81589 77 3 0x100092 kqread dhcpleased 81589 419613 1 0 3 0x80 kqread dhcpleased 2392 183752 0 0 3 0x14200 bored smr 93679 63583 0 0 2 0x14200 zerothread 57799 146256 0 0 3 0x14200 aiodoned aiodoned 68291 244095 0 0 3 0x14200 syncer update 17977 366455 0 0 3 0x14200 cleaner cleaner 6983 114158 0 0 3 0x14200 reaper reaper 19874 170311 0 0 3 0x14200 pgdaemon pagedaemon 75155 113820 0 0 3 0x14200 bored viomb 10102 268713 0 0 3 0x40014200 acpi0 acpi0 29073 141744 0 0 3 0x14200 bored softnet 1855 80513 0 0 3 0x14200 bored softnet 96809 258765 0 0 3 0x14200 bored softnet 42706 81909 0 0 3 0x14200 bored softnet 15807 121953 0 0 3 0x14200 bored systqmp 75067 28616 0 0 3 0x14200 bored systq 89758 23761 0 0 3 0x40014200 bored softclock 83276 191614 0 0 3 0x40014200 idle0 1 348215 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10190 6406K 6798K 78643K 14539 0 pcb 13 12K 14K 78643K 761 0 rtable 161 7K 10K 78643K 2540 0 ifaddr 90 20K 21K 78643K 337 0 sysctl 1 1K 1K 78643K 1 0 counters 25 17K 17K 78643K 99 0 ioctlops 0 0K 4K 78643K 757 0 iov 0 0K 24K 78643K 266 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1340 84K 84K 78643K 2985 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 15 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 292 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 14 49K 69K 78643K 3580 0 sigio 0 0K 0K 78643K 102 0 proc 59 59K 83K 78643K 1101 0 subproc 91 5K 6K 78643K 351 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 51 0 in_multi 69 4K 6K 78643K 357 0 ether_multi 1 0K 0K 78643K 9 0 mrt 0 0K 0K 78643K 33 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 157 705K 705K 78643K 157 0 exec 0 0K 2K 78643K 1740 0 pfkey data 0 0K 0K 78643K 3 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 265 158K 174K 78643K 20047 0 UVM aobj 19 2K 2K 78643K 19 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 99 0 NDP 10 0K 2K 78643K 107 0 temp 116 4725K 4790K 78643K 90307 0 kqueue 14 22K 28K 78643K 705 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 2104 0 2101 16 13 3 4 0 8 2 rtentry 112 370 0 300 4 1 3 4 0 8 0 unpcb 144 3243 0 3225 27 26 1 6 0 8 0 syncache 296 20 0 20 6 6 0 1 0 8 0 tcpqe 32 55 0 55 4 4 0 1 0 8 0 tcpcb 768 633 0 627 40 39 1 18 0 8 0 arp 88 59 0 47 1 0 1 1 0 8 0 ipq 40 2 0 2 2 2 0 1 0 8 0 ipqe 40 9 0 9 2 2 0 1 0 8 0 inpcb 336 3055 0 3045 48 41 7 15 0 8 5 nd6 48 91 0 75 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 27 0 20 1 0 1 1 0 8 0 ppxss 1160 45 0 45 3 3 0 1 0 8 0 pfstscr 40 10 0 9 1 0 1 1 0 8 0 pfrktable 1344 21 0 21 1 1 0 1 0 8 0 pfanchor 1280 318 0 119 17 0 17 17 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 120 17 0 15 1 0 1 1 0 8 0 pfstate 336 10 0 9 1 0 1 1 0 8 0 pfrule 1360 134 0 113 6 4 2 2 0 8 0 rttmr 136 11 0 11 4 4 0 1 0 8 0 art_heap8 4096 3 0 2 3 2 1 2 0 8 0 art_heap4 256 1569 0 1231 35 11 24 30 0 8 0 art_table 32 1572 0 1233 4 0 4 4 0 8 0 art_node 16 366 0 305 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 4 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 290 0 280 1 0 1 1 0 8 0 shmpl 112 16 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 5912 0 4475 91 0 91 91 0 8 0 ffsino 240 5912 0 4475 85 0 85 85 0 8 0 nchpl 144 10219 0 8598 63 1 62 63 0 8 0 rtmask 32 3 0 3 1 1 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 35240 0 35240 2 1 1 2 0 8 1 vcpupl 2048 9 0 2 2 0 2 2 0 8 0 vmpool 536 76 0 69 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 9 1 1 0 1 0 8 0 kstatmem 264 98 0 78 2 0 2 2 0 8 0 scxspl 216 29457 0 29457 14 13 1 8 0 8 1 plimitpl 152 415 0 401 1 0 1 1 0 8 0 sigapl 424 3854 0 3789 8 0 8 8 0 8 0 futexpl 64 31792 0 31786 1 0 1 1 0 8 0 knotepl 120 220691 0 220481 29 21 8 15 0 8 1 kqueuepl 184 1124 0 1114 17 16 1 4 0 8 0 pipepl 288 480 0 455 3 0 3 3 0 8 0 fdescpl 432 3816 0 3791 4 0 4 4 0 8 0 filepl 120 22998 0 22775 36 25 11 16 0 8 4 lockfpl 104 834 0 832 3 2 1 2 0 8 0 lockfspl 48 288 0 286 1 0 1 1 0 8 0 sessionpl 144 42 0 27 1 0 1 1 0 8 0 pgrppl 48 48 0 33 1 0 1 1 0 8 0 ucredpl 104 2534 0 2524 1 0 1 1 0 8 0 zombiepl 144 3791 0 3789 1 0 1 1 0 8 0 processpl 1000 3854 0 3789 10 1 9 9 0 8 0 procpl 672 8700 0 8614 13 4 9 9 0 8 1 sosppl 168 24 0 23 2 1 1 1 0 8 0 sockpl 456 8411 0 8380 155 143 12 37 0 8 8 sockpl: pool(0xffffffff82a5cc20:sockpl): page inconsistency: page 0x0; at page head addr 0xfffffd8067faff90 (p 0xfffffd8067faf000) mcl64k 65536 95 0 95 5 4 1 1 0 8 1 mcl16k 16384 45 0 45 9 8 1 1 0 8 1 mcl12k 12288 87 0 87 8 8 0 1 0 8 0 mcl9k 9216 41 0 41 8 7 1 1 0 8 1 mcl8k 8192 123 0 123 6 5 1 1 0 8 1 mcl4k 4096 345 0 345 2 1 1 1 0 8 1 mcl2k2 2112 29 0 29 10 9 1 1 0 8 1 mcl2k 2048 75409 0 75348 24 15 9 16 0 8 0 mtagpl 96 462 0 272 8 3 5 6 0 8 0 mbufpl 256 299330 0 298947 1682 1608 74 556 0 8 13 bufpl 288 8844 0 2432 459 0 459 459 0 8 0 anonpl 24 656412 0 640428 130 15 115 115 0 188 0 amapchunkpl 152 80773 0 80040 372 329 43 343 0 158 13 amappl16 200 8035 0 7431 40 6 34 35 0 8 1 amappl15 192 532 0 528 1 0 1 1 0 8 0 amappl14 184 108 0 104 1 0 1 1 0 8 0 amappl13 176 883 0 880 1 0 1 1 0 8 0 amappl12 168 787 0 779 1 0 1 1 0 8 0 amappl11 160 294 0 277 1 0 1 1 0 8 0 amappl10 152 512 0 511 1 0 1 1 0 8 0 amappl9 144 848 0 835 1 0 1 1 0 8 0 amappl8 136 1161 0 1101 3 0 3 3 0 8 0 amappl7 128 497 0 477 1 0 1 1 0 8 0 amappl6 120 629 0 611 2 1 1 2 0 8 0 amappl5 112 3502 0 3489 1 0 1 1 0 8 0 amappl4 104 1555 0 1525 2 1 1 2 0 8 0 amappl3 96 11023 0 10971 2 0 2 2 0 8 0 amappl2 88 4559 0 4497 2 0 2 2 0 8 0 amappl1 80 90307 0 89612 22 6 16 21 0 8 0 amappl 88 19231 0 19074 4 0 4 4 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 18 0 0 1 0 1 1 0 8 0 uaddrrnd 24 3892 0 3860 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3892 0 3860 1 0 1 1 0 8 0 vmmpekpl 168 30039 0 29978 3 0 3 3 0 8 0 vmmpepl 168 374752 0 372141 219 91 128 156 0 357 5 vmsppl 272 3891 0 3860 4 1 3 3 0 8 0 rwobjpl 24 92030 0 84420 47 0 47 47 0 8 0 pdppl 4096 7790 0 7727 274 204 70 72 0 8 7 pvpl 32 1459974 0 1441313 263 84 179 243 0 265 0 pmappl 216 3891 0 3860 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2747 0 1907 39 13 26 33 0 8 1 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline] pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765 pool_get(ffffffff82a5cc20,9) at pool_get+0xb3 sys/kern/subr_pool.c:582 socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:146 [inline] socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 sys/kern/uipc_socket.c:177 sys_socket(ffff800021777ce8,ffff80002b463348,ffff80002b4633a0) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:98 syscall(ffff80002b463410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1bfcf2a8050, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 pool_update_curpage sys/kern/subr_pool.c:1059 [inline] pool_do_get(ffffffff82a5cc20,9,ffff80002b4631e8) at pool_do_get+0x2c7 sys/kern/subr_pool.c:765 pool_get(ffffffff82a5cc20,9) at pool_get+0xb3 sys/kern/subr_pool.c:582 socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 soalloc sys/kern/uipc_socket.c:146 [inline] socreate(11,ffff80002b4632b8,3,0) at socreate+0xa8 sys/kern/uipc_socket.c:177 sys_socket(ffff800021777ce8,ffff80002b463348,ffff80002b4633a0) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:98 syscall(ffff80002b463410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1bfcf2a8050, count: -6