kernel: page fault trap, code=10 Stopped at 0 TID PID UID PRFLAGS PFLAGS CPU COMMAND 117486 12192 0 0x2 0 1 syz-executor.7 0(0,0,0,ffffffff82d36ff0,0,0) at 0 timeout_run(fffffd8068c26f00) at timeout_run+0xd0 sys/kern/kern_timeout.c:666 softclock_process_kclock_timeout(fffffd8068c26f00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:696 softclock(0) at softclock+0x150 sys/kern/kern_timeout.c:749 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82d36ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183 end trace frame: 0x0, count: 8 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 0(0,0,0,ffffffff82d36ff0,0,0) at 0 timeout_run(fffffd8068c26f00) at timeout_run+0xd0 sys/kern/kern_timeout.c:666 softclock_process_kclock_timeout(fffffd8068c26f00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:696 softclock(0) at softclock+0x150 sys/kern/kern_timeout.c:749 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82d36ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183 end trace frame: 0x0, count: -7 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a102c50 rbx 0 rdx 0 rcx 0xffff80002a0fca90 rax 0x9 r8 0xd2 r9 0xd2 r10 0x8de1d9689dec2877 r11 0 r12 0 r13 0xffffffff82d21a80 timeout_spinlock_obj r14 0 r15 0 rip 0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a102c08 ss 0x10 0 ddb{0}> show proc PROC (idle0) tid=49678 pid=85984 tcnt=1 stat=onproc flags process=14000 proc=40000200 runpri=0, usrpri=50, slppri=0, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0x533bb37ed9780ffb, list=0xffff80002a0fcd38,0xffff80002a0fc7f8 process=0xffff8000fffff0d0 user=0xffff80002a0fd000, vmspace=0xffffffff82ebaa88 estcpu=0, cpticks=34562, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 41446 221133 12192 0 2 0x480 syz-executor.7 41446 379037 12192 0 3 0x4000080 fifor syz-executor.7 41446 153000 12192 0 3 0x4000080 kqpoll syz-executor.7 41446 66769 12192 0 3 0x4000080 kqpoll syz-executor.7 6017 194712 12419 0 3 0x80 nanoslp syz-executor.1 6017 316397 12419 0 3 0x4000080 netio syz-executor.1 13026 518074 53247 0 2 0x480 syz-executor.2 13026 123489 53247 0 3 0x4000080 netcon syz-executor.2 13026 65333 53247 0 3 0x4000080 fsleep syz-executor.2 13026 430340 53247 0 3 0x4000080 fsleep syz-executor.2 92014 313542 56960 0 3 0x80 nanoslp syz-executor.0 92014 408390 56960 0 3 0x4000080 ttyout syz-executor.0 92014 158527 56960 0 3 0x4000080 fsleep syz-executor.0 12192 117486 49276 0 7 0x2 syz-executor.7 58497 468651 49276 0 3 0x82 piperd syz-executor.5 18292 55595 49276 0 3 0x82 piperd syz-executor.4 18027 150792 49276 0 3 0x82 piperd syz-executor.6 53247 385665 49276 0 3 0x82 nanoslp syz-executor.2 56960 446112 49276 0 3 0x82 nanoslp syz-executor.0 12419 116370 49276 0 3 0x82 nanoslp syz-executor.1 3338 366039 0 0 3 0x14280 nfsidl nfsio 11839 242415 0 0 3 0x14280 nfsidl nfsio 67655 461958 0 0 3 0x14280 nfsidl nfsio 3428 44531 0 0 3 0x14280 nfsidl nfsio 97102 158296 0 0 3 0x14280 nfsidl nfsio 99715 181303 0 0 3 0x14200 bored sosplice 46089 82308 49276 0 3 0x82 piperd syz-executor.3 49276 292297 90479 0 3 0x2000082 thrsleep syz-fuzzer 49276 86988 90479 0 3 0x6000082 thrsleep syz-fuzzer 49276 246713 90479 0 3 0x6000082 wait syz-fuzzer 49276 206454 90479 0 3 0x6000082 wait syz-fuzzer 49276 171416 90479 0 3 0x6000082 wait syz-fuzzer 49276 28170 90479 0 3 0x6000082 thrsleep syz-fuzzer 49276 85270 90479 0 3 0x6000082 wait syz-fuzzer 49276 42981 90479 0 3 0x6000082 thrsleep syz-fuzzer 49276 207609 90479 0 3 0x6000082 kqread syz-fuzzer 49276 355598 90479 0 3 0x6000082 wait syz-fuzzer 49276 404155 90479 0 3 0x6000082 thrsleep syz-fuzzer 49276 72467 90479 0 3 0x6000082 thrsleep syz-fuzzer 49276 463816 90479 0 3 0x6000082 wait syz-fuzzer 49276 5560 90479 0 3 0x6000082 wait syz-fuzzer 49276 391072 90479 0 3 0x6000082 wait syz-fuzzer 49276 18564 90479 0 3 0x6000082 thrsleep syz-fuzzer 90479 76666 40876 0 3 0x10008a sigsusp ksh 40876 5164 85811 0 3 0x9a kqread sshd 66076 115426 1 0 3 0x100083 ttyin getty 85811 131061 1 0 3 0x88 kqread sshd 19260 350672 26213 74 3 0x1100092 bpf pflogd 26213 316113 1 0 3 0x80 netio pflogd 92541 386397 20954 73 3 0x1100090 kqread syslogd 20954 422235 1 0 3 0x100082 netio syslogd 98799 300012 1 0 3 0x100080 kqread resolvd 77863 425191 30260 77 3 0x100092 kqread dhcpleased 30111 31562 30260 77 3 0x100092 kqread dhcpleased 30260 521700 1 0 3 0x80 kqread dhcpleased 28304 113508 0 0 3 0x14200 bored smr 50005 477795 0 0 3 0x14200 pgzero zerothread 99296 210074 0 0 3 0x14200 aiodoned aiodoned 80931 197622 0 0 3 0x14200 syncer update 98158 95506 0 0 3 0x14200 cleaner cleaner 44706 476610 0 0 3 0x14200 reaper reaper 74149 142004 0 0 3 0x14200 pgdaemon pagedaemon 39833 468950 0 0 3 0x14200 bored viomb 14487 401135 0 0 3 0x40014200 acpi0 acpi0 89131 255011 0 0 3 0x40014200 idle1 82431 516092 0 0 3 0x14200 bored softnet3 47228 226104 0 0 3 0x14200 bored softnet2 10716 388746 0 0 3 0x14200 bored softnet1 6204 404863 0 0 3 0x14200 bored softnet0 53791 212779 0 0 3 0x14200 bored systqmp 3760 346287 0 0 3 0x14200 bored systq 40342 468227 0 0 3 0x14200 tmoslp softclockmp 1979 426618 0 0 3 0x40014200 tmoslp softclock *85984 49678 0 0 7 0x40014200 idle0 1 306475 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: shared mutex timeout r = 0 (0xffffffff82d21a80) #0 witness_lock+0x447 #1 timeout_run+0xbb sys/kern/kern_timeout.c:662 #2 softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:696 #3 softclock+0x150 sys/kern/kern_timeout.c:749 #4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 #5 Xsoftclock+0x27 #6 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 #7 sched_idle+0x41e sys/kern/kern_sched.c:183 #8 proc_trampoline+0x10 CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82eb8fe0) #0 witness_lock+0x447 #1 sched_idle+0x199 sys/kern/kern_sched.c:167 #2 proc_trampoline+0x10 Process 85984 (idle0) thread 0xffff80002a0fca90 (49678) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d86c10) #0 witness_lock+0x447 #1 softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 #2 Xsoftclock+0x27 #3 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 #4 sched_idle+0x41e sys/kern/kern_sched.c:183 #5 proc_trampoline+0x10 shared mutex timeout r = 0 (0xffffffff82d21a80) #0 witness_lock+0x447 #1 timeout_run+0xbb sys/kern/kern_timeout.c:662 #2 softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:696 #3 softclock+0x150 sys/kern/kern_timeout.c:749 #4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 #5 Xsoftclock+0x27 #6 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 #7 sched_idle+0x41e sys/kern/kern_sched.c:183 #8 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10217 6499K 7082K 166960K 21194 0 pcb 15 26K 30K 166960K 870 0 rtable 205 14K 16K 166960K 1700 0 pf 33 9K 10K 166960K 141 0 ifaddr 39 14K 16K 166960K 165 0 ifgroup 56 2K 2K 166960K 233 0 sysctl 2 0K 2K 166960K 10 0 counters 64 36K 37K 166960K 154 0 ioctlops 0 0K 4K 166960K 1726 0 iov 0 0K 18K 166960K 878 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1549 97K 97K 166960K 4995 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 72 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1149 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 14 49K 81K 166960K 9732 0 sigio 0 0K 0K 166960K 203 0 proc 71 91K 115K 166960K 1660 0 subproc 104 6K 6K 166960K 394 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 764 0 in_multi 77 5K 7K 166960K 432 0 ether_multi 1 0K 0K 166960K 21 0 mrt 1 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 211 943K 943K 166960K 211 0 exec 0 0K 1K 166960K 1714 0 pfkey data 0 0K 0K 166960K 43 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 449 344K 347K 166960K 97387 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 266 0 NDP 12 0K 1K 166960K 117 0 temp 75 6772K 137849K 166960K 109656 0 kqueue 13 20K 29K 166960K 847 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 120 445 0 442 4 3 1 3 0 8 0 rtentry 112 500 0 409 4 0 4 4 0 8 0 unpcb 144 7907 0 7888 93 87 6 8 0 8 5 syncache 336 108 0 108 20 20 0 1 0 8 0 sackhl 24 13 0 13 2 2 0 1 0 8 0 tcpqe 32 410 1572 410 4 4 0 1 0 8 0 tcpcb 808 3054 0 2968 106 96 10 23 0 8 0 arp 120 118 0 103 1 0 1 1 0 8 0 inpcb 392 8080 0 7988 175 162 13 26 0 8 2 nd6 136 99 0 78 2 0 2 2 0 8 0 pkpcb 40 23 0 23 5 4 1 1 0 8 1 kcovpl 48 30 0 22 1 0 1 1 0 8 0 ppxss 1168 5 0 5 2 2 0 1 0 8 0 pffrag 232 73 0 73 2 2 0 1 0 482 0 pffrnode 88 73 0 73 2 2 0 1 0 8 0 pffrent 40 233 0 233 2 2 0 1 0 8 0 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 24 322 0 312 1 0 1 1 0 8 0 pfstkey 128 323 0 313 3 1 2 2 0 8 0 pfstate 376 323 0 313 9 7 2 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1748 0 1353 42 11 31 32 0 8 0 art_table 32 1749 0 1353 5 0 5 5 0 8 0 art_node 16 499 0 417 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 7 1 0 1 1 0 8 0 semapl 112 1145 0 1135 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 13798 0 12314 94 0 94 94 0 8 0 ffsino 272 13798 0 12314 100 0 100 100 0 8 0 nchpl 144 26806 0 25156 63 0 63 63 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 84123 0 84123 5 4 1 2 0 8 1 percpumem 16 91 0 45 1 0 1 1 0 8 0 vcpupl 2048 36 0 0 5 0 5 5 0 8 0 vmpool 696 46 0 10 4 0 4 4 0 8 0 kstatmem 264 114 0 90 4 1 3 3 0 8 1 scxspl 216 85494 0 85494 38 35 3 8 1 8 3 plimitpl 152 905 0 888 1 0 1 1 0 8 0 sigapl 424 10050 0 9999 11 3 8 9 0 8 0 futexpl 64 79845 0 79842 2 1 1 1 0 8 0 knotepl 120 484 0 0 6 0 6 6 0 8 0 kqueuepl 216 2237 0 2227 42 41 1 7 0 8 0 pipepl 320 1643 0 1615 54 51 3 8 0 8 0 fdescpl 496 9994 0 9967 5 0 5 5 0 8 0 filepl 152 55088 0 54834 131 114 17 23 0 8 6 lockfpl 104 3115 0 3113 8 7 1 2 0 8 0 lockfspl 48 1095 0 1093 1 0 1 1 0 8 0 sessionpl 144 46 0 29 1 0 1 1 0 8 0 pgrppl 48 105 0 88 1 0 1 1 0 8 0 ucredpl 104 6511 0 6496 1 0 1 1 0 8 0 zombiepl 144 9999 0 9999 1 0 1 1 0 8 1 processpl 1136 10050 0 9999 6 0 6 6 0 8 0 procpl 680 27322 0 27247 11 2 9 10 0 8 0 srpgc 96 32 0 32 10 9 1 1 0 8 1 sosppl 168 129 0 109 6 5 1 1 0 8 0 sockpl 584 16474 0 16363 210 192 18 24 0 8 8 mcl64k 65536 33 0 0 4 1 3 3 0 8 0 mcl16k 16384 24 0 0 3 1 2 3 0 8 0 mcl12k 12288 24 0 0 2 0 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 37 0 0 4 0 4 4 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 381 0 0 26 4 22 26 0 8 0 mtagpl 96 733 0 0 14 2 12 14 0 8 0 mbufpl 256 1676 0 0 84 0 84 84 0 8 0 bufpl 280 18205 0 11885 452 0 452 452 0 8 0 anonpl 24 1032020 0 1016731 189 69 120 121 0 186 11 amapchunkpl 152 306818 0 305904 71 22 49 51 0 158 8 amappl16 200 19360 0 18897 86 59 27 38 0 8 1 amappl15 192 19 0 19 3 3 0 1 0 8 0 amappl14 184 246 0 232 2 1 1 2 0 8 0 amappl13 176 29 0 27 2 1 1 1 0 8 0 amappl12 168 11003 0 10974 3 1 2 2 0 8 0 amappl11 160 94 0 79 1 0 1 1 0 8 0 amappl10 152 49 0 36 1 0 1 1 0 8 0 amappl9 144 241 0 241 24 23 1 1 0 8 1 amappl8 136 602 0 484 5 0 5 5 0 8 0 amappl7 128 268 0 242 2 0 2 2 0 8 0 amappl6 120 728 0 710 1 0 1 1 0 8 0 amappl5 112 306 0 295 1 0 1 1 0 8 0 amappl4 104 778 0 743 6 4 2 2 0 8 0 amappl3 96 60194 0 60106 4 1 3 3 0 8 0 amappl2 88 10888 0 10812 3 1 2 3 0 8 0 amappl1 80 44797 0 44241 23 10 13 23 0 8 0 amappl 88 96439 0 96174 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 10042 0 9979 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10042 0 9979 1 0 1 1 0 8 0 vmmpekpl 168 77320 0 77239 4 0 4 4 0 8 0 vmmpepl 168 600961 0 598537 298 172 126 152 0 357 0 vmsppl 448 10041 0 9979 10 2 8 8 0 8 0 rwobjpl 56 151495 0 143793 125 13 112 113 0 8 1 pdppl 4096 20091 0 19994 594 489 105 105 0 8 8 pvpl 32 37506 0 0 303 0 303 303 0 265 0 pmappl 248 10041 0 9979 6 1 5 5 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1331 0 827 15 0 15 15 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace 0(0,0,0,ffffffff82d36ff0,0,0) at 0 timeout_run(fffffd8068c26f00) at timeout_run+0xd0 sys/kern/kern_timeout.c:666 softclock_process_kclock_timeout(fffffd8068c26f00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:696 softclock(0) at softclock+0x150 sys/kern/kern_timeout.c:749 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82d36ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183 end trace frame: 0x0, count: -7 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(ffffffff82d86a08) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d86a08) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002f0d05d0) at syscall+0x51a mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002f0d05d0) at syscall+0x51a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73d4b1005e20, count: 9 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(ffffffff82d86a08) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d86a08) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002f0d05d0) at syscall+0x51a mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002f0d05d0) at syscall+0x51a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73d4b1005e20, count: -6