kernel: page fault trap, code=0 Stopped at 0 TID PID UID PRFLAGS PFLAGS CPU COMMAND *217999 87914 0 0x2 0x4000000 0K syz-fuzzer 0(0,0,0,ffff800021202da8,0,0) at 0 timeout_run(fffffd806857fdf0) at timeout_run+0xcc sys/kern/kern_timeout.c:641 softclock_process_kclock_timeout(fffffd806857fdf0,0) at softclock_process_kclock_timeout+0x1c6 sys/kern/kern_timeout.c:666 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x25516bab0, count: 10 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,ffff800021202da8,0,0) at 0 timeout_run(fffffd806857fdf0) at timeout_run+0xcc sys/kern/kern_timeout.c:641 softclock_process_kclock_timeout(fffffd806857fdf0,0) at softclock_process_kclock_timeout+0x1c6 sys/kern/kern_timeout.c:666 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x25516bab0, count: -5 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800029df10c0 rbx 0 rdx 0 rcx 0xffffffff82b46ff0 cpu_info_full_primary+0x1ff0 rax 0x9 r8 0x83 r9 0x83 r10 0xabbc4d84ba530535 r11 0 r12 0 r13 0xffffffff82b25a68 timeout_spinlock_obj r14 0 r15 0 rip 0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800029df1078 ss 0 0 ddb{0}> show proc PROC (syz-fuzzer) pid=217999 stat=onproc flags process=2 proc=4000000 pri=53, usrpri=53, nice=20 forw=0xffffffffffffffff, list=0xffff8000212435e8,0xffff800021228858 process=0xffff80002122c870 user=0xffff800029dec000, vmspace=0xfffffd806f1318a0 estcpu=3, cpticks=18, pctcpu=0.1 user=1, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48609 246058 16094 0 2 0 syz-executor.2 38795 27043 8277 0 2 0 syz-executor.3 38795 439880 8277 0 2 0x4000000 syz-executor.3 38795 340671 8277 0 3 0x4000080 fsleep syz-executor.3 38795 368184 8277 0 2 0x4000000 syz-executor.3 38795 235043 8277 0 2 0x4000000 syz-executor.3 35892 22519 18988 0 2 0 syz-executor.6 35892 443308 18988 0 3 0x4000080 fsleep syz-executor.6 41381 466891 63844 0 2 0 syz-executor.0 41381 418306 63844 0 3 0x4000080 fsleep syz-executor.0 41381 226023 63844 0 3 0x4000080 fsleep syz-executor.0 41381 189790 63844 0 3 0x4000080 fsleep syz-executor.0 66660 265978 7514 0 2 0 syz-executor.7 66660 110693 7514 0 3 0x4000080 fsleep syz-executor.7 44364 421808 40908 0 2 0 syz-executor.1 44364 224886 40908 0 3 0x4000080 fsleep syz-executor.1 18988 385590 87914 0 3 0x82 nanoslp syz-executor.6 34464 168130 0 0 3 0x14280 nfsidl nfsio 68134 130907 0 0 3 0x14280 nfsidl nfsio 3107 109738 0 0 3 0x14280 nfsidl nfsio 19133 500402 0 0 3 0x14280 nfsidl nfsio 53076 321016 0 0 3 0x14280 nfsidl nfsio 20916 91821 0 0 3 0x14280 nfsidl nfsio 58922 341690 0 0 3 0x14280 nfsidl nfsio 25402 40609 0 0 3 0x14280 nfsidl nfsio 65113 186684 0 0 3 0x14280 nfsidl nfsio 18304 346087 0 0 3 0x14280 nfsidl nfsio 64449 379842 0 0 3 0x14280 nfsidl nfsio 26771 157089 0 0 3 0x14280 nfsidl nfsio 41502 157692 0 0 3 0x14280 nfsidl nfsio 25222 113244 0 0 3 0x14280 nfsidl nfsio 88143 396773 0 0 3 0x14280 nfsidl nfsio 45119 155613 0 0 3 0x14280 nfsidl nfsio 83799 163444 0 0 3 0x14280 nfsidl nfsio 81999 128019 0 0 3 0x14280 nfsidl nfsio 74713 514659 0 0 3 0x14280 nfsidl nfsio 15201 377893 0 0 3 0x14280 nfsidl nfsio 8277 138358 87914 0 2 0x482 syz-executor.3 16094 131196 87914 0 2 0x2 syz-executor.2 63844 143514 87914 0 3 0x82 nanoslp syz-executor.0 29448 380396 0 0 3 0x14200 acct acct 18623 263137 87914 0 2 0x2 syz-executor.4 46868 67372 1 0 3 0x100083 ttyin getty 40908 54965 87914 0 3 0x82 nanoslp syz-executor.1 7514 446727 87914 0 2 0x482 syz-executor.7 89064 390684 0 0 3 0x14200 bored sosplice 87914 95603 79589 0 3 0x82 thrsleep syz-fuzzer 87914 111827 79589 0 2 0x4000482 syz-fuzzer 87914 23229 79589 0 3 0x4000082 wait syz-fuzzer 87914 263797 79589 0 3 0x4000082 thrsleep syz-fuzzer 87914 121617 79589 0 3 0x4000082 thrsleep syz-fuzzer 87914 259722 79589 0 3 0x4000082 wait syz-fuzzer 87914 190180 79589 0 3 0x4000082 wait syz-fuzzer 87914 149247 79589 0 3 0x4000082 thrsleep syz-fuzzer 87914 431755 79589 0 3 0x4000082 wait syz-fuzzer 87914 248429 79589 0 2 0x4000002 syz-fuzzer 87914 335343 79589 0 3 0x4000082 thrsleep syz-fuzzer 87914 382911 79589 0 3 0x4000082 wait syz-fuzzer *87914 217999 79589 0 7 0x4000002 syz-fuzzer 87914 107211 79589 0 3 0x4000082 wait syz-fuzzer 87914 57096 79589 0 3 0x4000082 wait syz-fuzzer 87914 396419 79589 0 3 0x4000082 thrsleep syz-fuzzer 79589 445776 81825 0 3 0x10008a sigsusp ksh 81825 445777 99000 0 3 0x9a kqread sshd 99000 111000 1 0 3 0x88 kqread sshd 487 480978 76372 74 3 0x1100092 bpf pflogd 76372 84828 1 0 3 0x80 netio pflogd 94485 138914 83295 73 3 0x1100090 kqread syslogd 83295 192193 1 0 3 0x100082 netio syslogd 4626 480052 1 0 3 0x100080 kqread resolvd 96115 44520 6300 77 3 0x100092 kqread dhcpleased 578 84826 6300 77 3 0x100092 kqread dhcpleased 6300 464447 1 0 3 0x80 kqread dhcpleased 32067 88015 0 0 3 0x14200 bored smr 62426 363077 0 0 2 0x14200 zerothread 72813 51662 0 0 3 0x14200 aiodoned aiodoned 22122 323196 0 0 3 0x14200 syncer update 80573 88399 0 0 3 0x14200 cleaner cleaner 36258 271912 0 0 3 0x14200 reaper reaper 95086 436176 0 0 3 0x14200 pgdaemon pagedaemon 19093 153997 0 0 3 0x14200 bored viomb 15243 482403 0 0 3 0x40014200 acpi0 acpi0 46494 36827 0 0 7 0x40014200 idle1 39055 236293 0 0 3 0x14200 bored softnet 73507 348474 0 0 3 0x14200 bored softnet 73959 470734 0 0 3 0x14200 bored softnet 74338 233237 0 0 3 0x14200 bored softnet 4450 148216 0 0 3 0x14200 bored systqmp 85795 278319 0 0 3 0x14200 bored systq 79378 280833 0 0 3 0x40014200 bored softclock 50380 380692 0 0 3 0x40014200 idle0 1 31554 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 10248 6507K 7095K 78643K 30308 0 pcb 13 18K 23K 78643K 1830 0 rtable 204 17K 18K 78643K 2085 0 ifaddr 79 26K 29K 78643K 903 0 sysctl 2 0K 0K 78643K 4 0 counters 58 35K 36K 78643K 798 0 ioctlops 0 0K 4K 78643K 4074 0 iov 0 0K 24K 78643K 2274 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1634 102K 103K 78643K 11730 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 103 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1771 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 81K 78643K 9947 0 sigio 0 0K 0K 78643K 205 0 proc 72 91K 115K 78643K 1839 0 subproc 91 5K 6K 78643K 533 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 454 0 in_multi 78 5K 6K 78643K 634 0 ether_multi 1 0K 0K 78643K 35 0 mrt 1 0K 0K 78643K 50 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 247 1102K 1102K 78643K 247 0 exec 0 0K 1K 78643K 2134 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 388 90K 111K 78643K 66043 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 536 0 NDP 14 0K 0K 78643K 300 0 temp 133 5778K 6802K 78643K 86837 0 kqueue 12 18K 28K 78643K 770 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 749 0 746 11 10 1 3 0 8 0 rtentry 112 612 0 529 4 0 4 4 0 8 0 unpcb 144 9635 0 9618 114 108 6 10 0 8 5 syncache 296 49 0 49 11 11 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 255 0 255 10 10 0 1 0 8 0 tcpcb 776 3684 0 3678 117 116 1 14 0 8 0 arp 120 94 0 80 1 0 1 1 0 8 0 inpcb 368 20783 0 20773 253 244 9 24 0 8 7 nd6 48 133 0 112 1 0 1 1 0 8 0 pkpcb 40 32 0 32 7 6 1 1 0 8 1 kcovpl 48 41 0 34 1 0 1 1 0 8 0 mppekey 1024 5 0 5 3 3 0 1 0 8 0 ppxss 1256 253 0 253 22 22 0 1 0 8 0 pppxif 1456 141 0 141 11 11 0 1 0 8 0 pfstscr 40 15 0 15 3 3 0 1 0 8 0 pffrag 232 59 0 58 6 5 1 1 0 482 0 pffrnode 88 59 0 58 6 5 1 1 0 8 0 pffrent 40 236 0 235 6 5 1 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 pfanchor 1280 784 82 272 47 4 43 43 0 8 0 pfqueue 264 6 0 6 2 2 0 1 0 8 0 pfstitem 24 17 0 15 1 0 1 1 0 8 0 pfstkey 128 43 0 41 1 0 1 1 0 8 0 pfstate 384 31 0 29 2 1 1 2 0 8 0 pfrule 1344 21 0 20 2 1 1 2 0 8 0 rttmr 136 4 0 4 1 1 0 1 0 8 0 art_heap8 4096 2 0 1 2 0 2 2 0 8 1 art_heap4 256 2797 0 2444 48 22 26 29 0 8 3 art_table 32 2799 0 2445 4 0 4 4 0 8 0 art_node 16 608 0 537 1 0 1 1 0 8 0 semapl 112 1769 0 1759 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 14857 0 13390 93 0 93 93 0 8 0 ffsino 272 14857 0 13390 99 0 99 99 0 8 0 nchpl 144 28750 0 27111 63 0 63 63 0 8 0 rtmask 32 16 0 16 7 7 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 111841 0 111841 6 5 1 2 0 8 1 percpumem 16 412 0 370 1 0 1 1 0 8 0 vmpool 696 11 0 11 3 3 0 1 0 8 0 kstatmem 264 408 0 380 11 8 3 3 0 8 0 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 81918 0 81918 16 15 1 8 0 8 1 plimitpl 152 1391 0 1375 1 0 1 1 0 8 0 sigapl 424 10418 0 10351 11 3 8 8 0 8 0 futexpl 64 110871 0 110864 2 1 1 1 0 8 0 knotepl 120 811 0 0 15 1 14 14 0 8 0 kqueuepl 216 2211 0 2203 35 34 1 5 0 8 0 pipepl 320 2428 0 2403 69 63 6 8 0 8 3 fdescpl 496 10177 0 10149 5 1 4 5 0 8 0 filepl 152 89800 0 89575 155 140 15 23 0 8 4 lockfpl 104 2452 0 2450 4 3 1 2 0 8 0 lockfspl 48 828 0 826 1 0 1 1 0 8 0 sessionpl 144 61 0 45 1 0 1 1 0 8 0 pgrppl 48 266 0 250 1 0 1 1 0 8 0 ucredpl 104 13149 0 13130 1 0 1 1 0 8 0 zombiepl 144 10351 0 10351 1 0 1 1 0 8 1 processpl 1072 10418 0 10351 5 0 5 5 0 8 0 procpl 696 25992 0 25900 29 19 10 11 0 8 0 srpgc 96 48 0 48 12 11 1 1 0 8 1 sosppl 168 83 0 83 17 17 0 1 0 8 0 sockpl 488 31239 0 31209 715 703 12 42 0 8 7 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 620 0 0 53 15 38 53 0 8 0 mtagpl 96 911 0 0 16 0 16 16 0 8 0 mbufpl 256 1591 0 0 85 0 85 85 0 8 0 bufpl 288 20011 0 13686 453 0 453 453 0 8 0 anonpl 24 1965882 0 1949338 243 61 182 193 0 186 43 amapchunkpl 152 191090 0 190312 105 52 53 62 0 158 19 amappl16 200 17887 0 17189 134 89 45 50 0 8 8 amappl15 192 78 0 73 1 0 1 1 0 8 0 amappl14 184 259 0 241 2 1 1 2 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 811 0 808 1 0 1 1 0 8 0 amappl11 160 50 0 36 1 0 1 1 0 8 0 amappl10 152 75 0 63 1 0 1 1 0 8 0 amappl9 144 1020 0 1018 1 0 1 1 0 8 0 amappl8 136 562 0 453 4 0 4 4 0 8 0 amappl7 128 246 0 218 2 0 2 2 0 8 0 amappl6 120 394 0 380 2 1 1 2 0 8 0 amappl5 112 387 0 378 1 0 1 1 0 8 0 amappl4 104 1006 0 971 2 0 2 2 0 8 0 amappl3 96 28885 0 28830 2 0 2 2 0 8 0 amappl2 88 11181 0 11100 4 2 2 4 0 8 0 amappl1 80 228529 0 227756 28 10 18 28 0 8 0 amappl 88 64949 0 64736 7 1 6 6 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 10188 0 10160 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10188 0 10160 1 0 1 1 0 8 0 vmmpekpl 168 79666 0 79604 4 0 4 4 0 8 0 vmmpepl 168 929451 0 926403 391 222 169 169 0 357 23 vmsppl 440 10187 0 10160 5 1 4 4 0 8 0 rwobjpl 56 241612 0 233597 136 20 116 118 0 8 1 pdppl 4096 20383 0 20320 599 532 67 77 0 8 4 pvpl 32 3839139 0 3816889 620 301 319 365 0 265 96 pmappl 248 10187 0 10160 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1727 0 845 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace 0(0,0,0,ffff800021202da8,0,0) at 0 timeout_run(fffffd806857fdf0) at timeout_run+0xcc sys/kern/kern_timeout.c:641 softclock_process_kclock_timeout(fffffd806857fdf0,0) at softclock_process_kclock_timeout+0x1c6 sys/kern/kern_timeout.c:666 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x25516bab0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -5