kernel: page fault trap, code=10 Stopped at 0 TID PID UID PRFLAGS PFLAGS CPU COMMAND * 15383 11022 0 0x1000 0x4080080 0 syz-executor.1 end trace frame: 0x0, count: 14 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: attempt to execute user address 0x0 in supervisor mode ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> show registers rdi 0x15089001 rsi 0xffff80002a21b008 rbp 0 rbx 0 rdx 0x5d7b5002 rcx 0 rax 0x800000006a742001 r8 0 r9 0 r10 0x5cc5daa6c74fd62d r11 0xd16375e5138550e7 r12 0xffff800000020000 r13 0xffff800029cea068 r14 0xffff800029cea000 r15 0 rip 0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002fcdc2a0 ss 0x10 0 ddb{0}> show proc PROC (syz-executor.1) tid=15383 pid=11022 tcnt=3 stat=onproc flags process=1000 proc=4080080 runpri=32, usrpri=81, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a210010 forw=0xffffffffffffffff, list=0xffff80002a271d48,0xffff80002a272550 process=0xffff8000fffee818 user=0xffff80002fcd7000, vmspace=0xfffffd806b96f028 estcpu=31, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39048 464328 42020 0 3 0x80 nanoslp syz-executor.0 39048 359325 42020 0 3 0x4000080 pipewr syz-executor.0 39048 135079 42020 0 3 0x4000080 pipewr syz-executor.0 39048 112129 42020 0 3 0x4000080 fsleep syz-executor.0 59161 70480 62146 0 3 0x80 nanoslp syz-executor.6 59161 381291 62146 0 3 0x4000080 fsleep syz-executor.6 59161 58857 62146 0 3 0x4000080 fsleep syz-executor.6 59161 397813 62146 0 3 0x4000080 lockf syz-executor.6 11022 455135 33109 0 3 0x3000 suspend syz-executor.1 *11022 15383 33109 0 7 0x4081080 syz-executor.1 17362 172282 11217 0 3 0x82 piperd syz-executor.4 97169 443128 11217 0 3 0x82 piperd syz-executor.2 62146 51144 11217 0 3 0x82 nanoslp syz-executor.6 6609 31510 11217 0 3 0x82 piperd syz-executor.7 82256 120246 11217 0 3 0x82 piperd syz-executor.5 33109 153788 11217 0 3 0x82 nanoslp syz-executor.1 42020 156051 11217 0 3 0x82 nanoslp syz-executor.0 27793 311637 11217 0 3 0x82 piperd syz-executor.3 29372 256411 0 0 3 0x14280 nfsidl nfsio 68427 361044 0 0 3 0x14280 nfsidl nfsio 63535 105136 0 0 3 0x14280 nfsidl nfsio 51675 274428 0 0 3 0x14280 nfsidl nfsio 17869 139815 0 0 3 0x14280 nfsidl nfsio 42122 291726 0 0 3 0x14280 nfsidl nfsio 24161 423986 0 0 3 0x14280 nfsidl nfsio 9572 164903 0 0 3 0x14280 nfsidl nfsio 64988 400188 0 0 3 0x14280 nfsidl nfsio 49412 385121 0 0 3 0x14280 nfsidl nfsio 12402 311861 0 0 3 0x14280 nfsidl nfsio 63805 89765 0 0 3 0x14280 nfsidl nfsio 99479 502626 0 0 3 0x14280 nfsidl nfsio 6235 325607 0 0 3 0x14280 nfsidl nfsio 73838 438199 0 0 3 0x14280 nfsidl nfsio 81558 508428 0 0 3 0x14280 nfsidl nfsio 63472 223049 0 0 3 0x14280 nfsidl nfsio 41639 199314 0 0 3 0x14280 nfsidl nfsio 93158 186784 0 0 3 0x14280 nfsidl nfsio 21913 354591 0 0 3 0x14280 nfsidl nfsio 26572 308181 0 0 3 0x14200 bored sosplice 11217 441860 48335 0 3 0x2000082 wait syz-fuzzer 11217 342441 48335 0 3 0x6000082 thrsleep syz-fuzzer 11217 285889 48335 0 3 0x6000082 thrsleep syz-fuzzer 11217 481420 48335 0 3 0x6000082 wait syz-fuzzer 11217 171541 48335 0 3 0x6000082 wait syz-fuzzer 11217 304622 48335 0 3 0x6000082 thrsleep syz-fuzzer 11217 27449 48335 0 3 0x6000082 wait syz-fuzzer 11217 411656 48335 0 3 0x6000082 thrsleep syz-fuzzer 11217 455485 48335 0 3 0x6000082 wait syz-fuzzer 11217 508208 48335 0 3 0x6000082 wait syz-fuzzer 11217 243825 48335 0 3 0x6000082 thrsleep syz-fuzzer 11217 328283 48335 0 3 0x6000082 thrsleep syz-fuzzer 11217 205512 48335 0 3 0x6000082 kqread syz-fuzzer 11217 429317 48335 0 3 0x6000082 thrsleep syz-fuzzer 11217 348256 48335 0 3 0x6000082 wait syz-fuzzer 11217 253217 48335 0 3 0x6000082 wait syz-fuzzer 48335 31472 66482 0 3 0x10008a sigsusp ksh 66482 187944 85358 0 3 0x9a kqread sshd 40760 44113 1 0 3 0x100083 ttyin getty 85358 445311 1 0 3 0x88 kqread sshd 88466 207730 55434 74 3 0x1100092 bpf pflogd 55434 314415 1 0 3 0x80 netio pflogd 79790 194206 56671 73 3 0x1100090 kqread syslogd 56671 278689 1 0 3 0x100082 netio syslogd 45323 146698 1 0 3 0x100080 kqread resolvd 33114 501407 57901 77 3 0x100092 kqread dhcpleased 88362 390647 57901 77 3 0x100092 kqread dhcpleased 57901 262008 1 0 3 0x80 kqread dhcpleased 67944 489725 0 0 3 0x14200 bored smr 67627 79049 0 0 3 0x14200 pgzero zerothread 86773 209277 0 0 3 0x14200 aiodoned aiodoned 74586 432319 0 0 3 0x14200 syncer update 73556 441608 0 0 3 0x14200 cleaner cleaner 88581 116395 0 0 3 0x14200 reaper reaper 1513 400043 0 0 3 0x14200 pgdaemon pagedaemon 3657 243836 0 0 3 0x14200 bored viomb 38466 100600 0 0 3 0x40014200 acpi0 acpi0 62400 139313 0 0 3 0x40014200 idle1 20760 473737 0 0 3 0x14200 bored softnet3 58316 318488 0 0 3 0x14200 bored softnet2 71294 300940 0 0 3 0x14200 bored softnet1 93452 6393 0 0 3 0x14200 bored softnet0 23378 482844 0 0 3 0x14200 bored systqmp 72041 428621 0 0 3 0x14200 bored systq 64728 80403 0 0 3 0x14200 tmoslp softclockmp 49581 453288 0 0 3 0x40014200 tmoslp softclock 42456 37929 0 0 3 0x40014200 idle0 1 137759 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82eaa6e8) #0 witness_lock+0x447 #1 sleep_finish+0x142 sys/kern/kern_synch.c:398 #2 msleep+0xea sys/kern/kern_synch.c:249 #3 reaper+0xdb sys/kern/kern_exit.c:434 #4 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10202 6494K 6991K 166960K 13054 0 pcb 15 14K 16K 166960K 445 0 rtable 223 15K 15K 166960K 876 0 pf 32 9K 10K 166960K 121 0 ifaddr 43 15K 16K 166960K 127 0 ifgroup 55 2K 2K 166960K 193 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 136 0 ioctlops 0 0K 4K 166960K 2029 0 iov 0 0K 16K 166960K 790 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1358 85K 85K 166960K 2851 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 47 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 232 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 13 45K 89K 166960K 9179 0 sigio 0 0K 0K 166960K 82 0 proc 70 91K 128K 166960K 1179 0 subproc 104 6K 6K 166960K 273 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 425 0 in_multi 88 6K 7K 166960K 454 0 ether_multi 1 0K 0K 166960K 34 0 mrt 0 0K 0K 166960K 20 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 121 546K 546K 166960K 121 0 exec 0 0K 1K 166960K 1044 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 450 364K 430K 166960K 81677 0 UVM aobj 45 2K 2K 166960K 53 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 379 0 NDP 12 0K 2K 166960K 90 0 temp 75 6772K 6894K 166960K 91149 0 kqueue 12 18K 34K 166960K 637 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 153 0 150 1 0 1 1 0 8 0 rtentry 112 282 0 182 7 3 4 4 0 8 0 unpcb 144 3435 0 3420 16 15 1 6 0 8 0 syncache 336 165 0 165 10 10 0 1 0 8 0 sackhl 24 7 0 7 1 1 0 1 0 8 0 tcpqe 32 300 0 300 10 10 0 1 0 8 0 tcpcb 808 1813 0 1787 21 15 6 11 0 8 1 arp 120 45 0 29 1 0 1 1 0 8 0 inpcb 392 4025 0 3996 26 16 10 17 0 8 4 nd6 136 64 0 42 2 1 1 1 0 8 0 pkpcb 40 103 0 103 9 8 1 1 0 8 1 kcovpl 48 21 0 13 1 0 1 1 0 8 0 ppxss 1168 6 0 6 3 3 0 1 0 8 0 pffrag 232 14 0 14 3 2 1 1 0 482 1 pffrnode 88 14 0 14 3 2 1 1 0 8 1 pffrent 40 48 0 48 5 4 1 1 0 8 1 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 211 0 202 1 0 1 1 0 8 0 pfstkey 128 211 0 202 3 1 2 3 0 8 0 pfstate 376 211 0 202 10 7 3 9 0 8 0 pfrule 1344 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 1041 0 621 55 28 27 29 0 8 0 art_table 32 1042 0 621 7 3 4 4 0 8 0 art_node 16 256 0 165 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 14 1 1 0 1 0 8 0 semapl 112 230 0 220 1 0 1 1 0 8 0 shmpl 112 50 0 8 2 0 2 2 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 12927 0 11428 95 0 95 95 0 8 0 ffsino 272 12927 0 11428 101 0 101 101 0 8 0 nchpl 144 23788 0 22148 64 0 64 64 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 64270 0 64270 2 1 1 2 0 8 1 percpumem 16 82 0 36 1 0 1 1 0 8 0 vcpupl 2048 74 0 6 10 0 10 10 0 8 0 vmpool 696 78 0 10 7 0 7 7 0 8 0 kstatmem 264 96 0 72 3 1 2 2 0 8 0 scxspl 216 78210 0 78210 14 13 1 8 1 8 1 plimitpl 152 607 0 591 1 0 1 1 0 8 0 sigapl 424 9491 0 9426 10 1 9 9 0 8 0 futexpl 64 52970 0 52966 2 1 1 1 0 8 0 knotepl 120 369 0 0 10 0 10 10 0 8 0 kqueuepl 216 954 0 946 6 1 5 5 0 8 4 pipepl 320 734 0 705 12 4 8 8 0 8 5 fdescpl 496 9451 0 9425 9 5 4 5 0 8 0 filepl 152 31812 0 31565 34 16 18 19 0 8 8 lockfpl 104 1490 0 1486 1 0 1 1 0 8 0 lockfspl 48 479 0 476 1 0 1 1 0 8 0 sessionpl 144 37 0 20 1 0 1 1 0 8 0 pgrppl 48 109 0 92 1 0 1 1 0 8 0 ucredpl 104 4740 0 4721 1 0 1 1 0 8 0 zombiepl 144 9427 0 9426 1 0 1 1 0 8 0 processpl 1136 9491 0 9426 6 0 6 6 0 8 0 procpl 680 20359 0 20271 17 8 9 10 0 8 0 srpgc 96 29 0 29 5 5 0 1 0 8 0 sosppl 168 149 0 149 5 5 0 1 0 8 0 sockpl 584 7733 0 7686 26 17 9 16 0 8 2 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 23 0 0 3 0 3 3 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 12 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 1 mcl4k 4096 38 0 0 4 0 4 4 0 8 0 mcl2k2 2112 11 0 0 1 0 1 1 0 8 0 mcl2k 2048 338 0 0 32 4 28 32 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 2700 0 0 169 0 169 169 0 8 0 bufpl 280 18685 0 12367 452 0 452 452 0 8 0 anonpl 24 972222 0 963513 195 127 68 119 0 186 0 amapchunkpl 152 257986 0 257262 53 18 35 42 0 158 0 amappl16 200 21432 0 21169 130 114 16 50 0 8 0 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 202 0 184 3 2 1 2 0 8 0 amappl13 176 31 0 31 2 2 0 1 0 8 0 amappl12 168 10317 0 10282 3 1 2 2 0 8 0 amappl11 160 103 0 88 1 0 1 1 0 8 0 amappl10 152 85 0 71 1 0 1 1 0 8 0 amappl9 144 206 0 204 1 0 1 1 0 8 0 amappl8 136 703 0 546 6 0 6 6 0 8 0 amappl7 128 219 0 192 2 0 2 2 0 8 0 amappl6 120 496 0 480 1 0 1 1 0 8 0 amappl5 112 207 0 196 1 0 1 1 0 8 0 amappl4 104 598 0 561 3 1 2 2 0 8 0 amappl3 96 51499 0 51412 4 1 3 3 0 8 0 amappl2 88 10070 0 9990 3 1 2 3 0 8 0 amappl1 80 40433 0 39884 23 9 14 23 0 8 0 amappl 88 80714 0 80485 8 1 7 7 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 52 0 8 1 0 1 1 0 8 0 uaddrrnd 24 9530 0 9436 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9530 0 9436 1 0 1 1 0 8 0 vmmpekpl 168 55249 0 55180 4 0 4 4 0 8 0 vmmpepl 168 544555 0 542355 223 110 113 139 0 357 0 vmsppl 448 9529 0 9436 15 3 12 12 0 8 0 rwobjpl 56 128080 0 120632 116 8 108 109 0 8 0 pdppl 4096 19067 0 18940 304 167 137 142 0 8 10 pvpl 32 43499 0 0 351 0 351 351 0 265 0 pmappl 248 9529 0 9436 8 1 7 7 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 880 0 258 19 0 19 19 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82eaa4e0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82eaa4e0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 exit1(ffff80002a21c2a0,0,0,3) at exit1+0x9ac sys/kern/kern_exit.c:322 single_thread_check_locked(ffff80002a21c2a0,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2019 userret(ffff80002a21c2a0) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2058 [inline] userret(ffff80002a21c2a0) at userret+0x7c sys/kern/kern_sig.c:1974 syscall(ffff80002eace460) at syscall+0x86d mi_syscall_return sys/sys/syscall_mi.h:210 [inline] syscall(ffff80002eace460) at syscall+0x86d sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3685d56f530, count: 6 ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82eaa4e0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82eaa4e0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 exit1(ffff80002a21c2a0,0,0,3) at exit1+0x9ac sys/kern/kern_exit.c:322 single_thread_check_locked(ffff80002a21c2a0,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2019 userret(ffff80002a21c2a0) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2058 [inline] userret(ffff80002a21c2a0) at userret+0x7c sys/kern/kern_sig.c:1974 syscall(ffff80002eace460) at syscall+0x86d mi_syscall_return sys/sys/syscall_mi.h:210 [inline] syscall(ffff80002eace460) at syscall+0x86d sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3685d56f530, count: -9