uvm_fault(0xfffffd806ba092f0, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *113137 24263 0 0 0x4000000 0 syz-executor ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94bca8,ffff80003c9431f0,ffff80003c943140) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9431f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9431f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb295690d330, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806ba092f0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94bca8,ffff80003c9431f0,ffff80003c943140) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9431f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9431f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb295690d330, count: -5 ddb> show registers rdi 0xffff80003c94bca8 rsi 0xffffffffffffffff rbp 0xffff80003c942f10 rbx 0xfffffd8007bfb340 rdx 0 rcx 0xa0c7df9f rax 0xffff80003c94bca8 r8 0xfffffd8069281d90 r9 0xfffffd8007bfb340 r10 0x2a1e7e125b32438b r11 0x82ac089f05ef93fb r12 0xffff80003c94bca8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff82949858 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c942e90 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=113137 pid=24263 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c94b778,0xffff80003c94afc0 process=0xffff8000ffffad18 user=0xffff80003c93e000, vmspace=0xfffffd806ba092f0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 6482 111698 23128 0 2 0 syz-executor 46760 379566 26664 0 2 0 syz-executor 46760 236866 26664 0 2 0x4000000 syz-executor 24263 360071 61149 0 2 0 syz-executor *24263 113137 61149 0 7 0x4000000 syz-executor 53655 284317 54326 0 2 0 syz-executor 53655 446962 54326 0 3 0x4000080 fsleep syz-executor 3835 150894 59177 0 2 0 syz-executor 3835 222040 59177 0 3 0x4000080 kqpoll syz-executor 3835 143281 59177 0 3 0x4000080 fsleep syz-executor 10027 225422 69574 0 3 0x80 nanoslp syz-executor 10027 497646 69574 0 3 0x4000080 ttyin syz-executor 1846 138078 0 0 3 0x14200 acct acct 90766 172829 0 0 3 0x14200 bored sosplice 81452 231144 27508 0 2 0x2 syz-executor 31472 305034 27508 0 2 0x2 syz-executor 54326 299593 27508 0 2 0xc82 syz-executor 59177 478387 27508 0 2 0xc82 syz-executor 26664 262973 27508 0 2 0xc82 syz-executor 69574 137401 27508 0 3 0x82 nanoslp syz-executor 23128 252869 27508 0 3 0x82 nanoslp syz-executor 61149 418422 27508 0 2 0xc82 syz-executor 27508 36985 94759 0 2 0x2 syz-executor 94759 507543 92738 0 3 0x10008a sigsusp ksh 92738 167234 6904 0 3 0x98 kqread sshd-session 6904 123889 59396 0 3 0x92 kqread sshd-session 90973 169619 1 0 3 0x100083 ttyin getty 59396 300729 1 0 3 0x88 kqread sshd 98619 470926 29820 73 3 0x1100090 kqread syslogd 29820 462558 1 0 3 0x100082 sbwait syslogd 33264 151071 1 0 3 0x100080 kqread resolvd 60316 619 71546 77 3 0x100092 kqread dhcpleased 69113 245787 71546 77 3 0x100092 kqread dhcpleased 71546 304935 1 0 3 0x80 kqread dhcpleased 69012 50606 0 0 3 0x14200 bored smr 80602 506923 0 0 2 0x14200 zerothread 17992 446298 0 0 3 0x14200 aiodoned aiodoned 81516 432205 0 0 3 0x14200 syncer update 78051 309197 0 0 3 0x14200 cleaner cleaner 81822 139691 0 0 3 0x14200 reaper reaper 15509 126646 0 0 3 0x14200 pgdaemon pagedaemon 53008 138529 0 0 3 0x14200 bored viomb 88688 10553 0 0 3 0x40014200 acpi0 acpi0 84332 230119 0 0 3 0x14200 bored softnet0 21728 125307 0 0 3 0x14200 smrbar systqmp 65944 276797 0 0 3 0x14200 bored systq 88685 25874 0 0 3 0x40014200 tmoslp softclock 45247 173674 0 0 3 0x40014200 idle0 1 421797 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 10203 11119K 11258K 166960K 11485 0 pcb 18 14K 15K 166960K 156 0 rtable 204 7K 8K 166960K 312 0 pf 30 12K 17K 166960K 59 0 ifaddr 39 6K 7K 166960K 52 0 ifgroup 50 2K 2K 166960K 65 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 18K 166960K 38 0 ioctlops 0 0K 4K 166960K 158 0 iov 0 0K 12K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1402 88K 89K 166960K 1564 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 8 2K 2K 166960K 11 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 316 0 sigio 0 0K 0K 166960K 69 0 proc 60 59K 124K 166960K 491 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 41 0 in_multi 87 6K 7K 166960K 102 0 ether_multi 2 0K 0K 166960K 3 0 mrt 3 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 2K 166960K 371 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 206 159K 167K 166960K 4286 0 UVM aobj 40 2K 2K 166960K 40 0 pinsyscall 37 74K 96K 166960K 1348 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 12 0 NDP 11 0K 1K 166960K 32 0 temp 73 8647K 8766K 166960K 17609 0 kqueue 14 22K 32K 166960K 57 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 51 0 48 1 0 1 1 0 8 0 rtentry 136 100 0 14 4 0 4 4 0 8 0 unpcb 144 488 0 470 6 0 6 6 0 8 5 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 103 0 99 4 0 4 4 0 8 3 arp 96 11 0 1 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 0 1 0 1 1 0 8 0 inpcb 328 474 0 466 8 0 8 8 0 8 7 ip6q 72 19 0 18 1 0 1 1 0 8 0 ip6af 40 37 0 36 1 0 1 1 0 8 0 nd6 112 17 0 3 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 4 0 4 1 0 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfrule 1344 6 0 6 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 442 0 50 28 0 28 28 0 8 2 art_table 40 444 0 50 5 0 5 5 0 8 0 art_node 32 100 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 112 7 0 1 1 0 1 1 0 8 0 shmpl 112 37 0 0 2 0 2 2 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 1928 0 428 95 0 95 95 0 8 0 ffsino 256 1929 0 428 95 0 95 95 0 8 0 nchpl 144 2387 0 706 63 0 63 63 0 8 0 uvmvnodes 80 2146 0 0 44 0 44 44 0 8 0 vnodes 216 2146 0 0 120 0 120 120 0 8 0 namei 1024 7940 0 7938 2 1 1 2 0 8 0 kstatmem 264 32 0 10 2 0 2 2 0 8 0 scxspl 216 8967 0 8967 15 7 8 8 1 8 8 plimitpl 152 95 0 78 1 0 1 1 0 8 0 sigapl 424 595 0 552 7 1 6 6 0 8 0 knotepl 120 23902 0 23853 8 0 8 8 0 8 5 kqueuepl 184 142 0 131 4 0 4 4 0 8 3 pipepl 304 115 0 88 3 0 3 3 0 8 0 fdescpl 448 580 0 552 5 1 4 5 0 8 0 filepl 120 3512 0 3299 16 1 15 15 0 8 7 lockfpl 104 198 0 195 1 0 1 1 0 8 0 lockfspl 48 45 0 42 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 492 0 481 1 0 1 1 0 8 0 zombiepl 144 552 0 552 2 1 1 1 0 8 1 processpl 1152 595 0 552 4 0 4 4 0 8 0 procpl 664 885 0 836 6 0 6 6 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 552 1018 0 989 12 0 12 12 0 8 9 mcl64k 65536 14 0 14 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 2 1 1 1 0 8 1 mcl4k 4096 2714 0 2664 13 6 7 13 0 8 0 mcl2k 2048 578 0 577 7 0 7 7 0 8 6 mtagpl 96 5 0 4 2 1 1 1 0 8 0 mbufpl 256 5944 0 5812 13 0 13 13 0 8 1 bufpl 280 3444 0 118 238 0 238 238 0 8 0 anonpl 24 119217 0 115804 35 2 33 33 0 187 9 amapchunkpl 152 13170 0 12742 24 1 23 23 0 158 4 amappl16 200 2334 0 2306 6 3 3 5 0 8 0 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 106 0 96 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1191 0 1164 3 1 2 3 0 8 0 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 8 0 8 2 1 1 1 0 8 1 amappl9 144 245 0 245 1 1 0 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 101 0 90 1 0 1 1 0 8 0 amappl6 120 173 0 170 1 0 1 1 0 8 0 amappl5 112 127 0 121 1 0 1 1 0 8 0 amappl4 104 272 0 255 1 0 1 1 0 8 0 amappl3 96 2143 0 2067 3 0 3 3 0 8 0 amappl2 88 805 0 733 2 0 2 2 0 8 0 amappl1 80 8537 0 7985 13 0 13 13 0 8 1 amappl 88 3616 0 3475 4 0 4 4 0 92 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 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 39 0 0 1 0 1 1 0 8 0 uaddrrnd 24 580 0 552 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 580 0 552 1 0 1 1 0 8 0 vmmpekpl 168 5920 0 5890 2 0 2 2 0 8 0 vmmpepl 168 42353 0 40575 89 4 85 85 0 357 2 vmsppl 368 579 0 552 4 1 3 4 0 8 0 rwobjpl 40 16240 0 13230 31 0 31 31 0 8 0 pdppl 4096 1167 0 1104 105 38 67 83 0 8 4 pvpl 32 280582 0 272220 91 0 91 91 0 265 12 pmappl 216 579 0 552 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 384 0 51 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94bca8,ffff80003c9431f0,ffff80003c943140) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9431f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9431f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb295690d330, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94bca8,ffffffffffffffff,0,a0c7df9f,fffffd8069281d90,fffffd8007bfb340) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8069281d90,4,20c7df9f,0,ffff80003c94bca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94bca8,ffff80003c9431f0,ffff80003c943140) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9431f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9431f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb295690d330, count: -5