uvm_fault(0xfffffd806b900468, 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 *144441 22156 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7aaa78,ffff80003c955ab0,ffff80003c955a00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaaccfdf70, 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(0xfffffd806b900468, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7aaa78,ffff80003c955ab0,ffff80003c955a00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaaccfdf70, count: -5 ddb> show registers rdi 0xffff80002a7aaa78 rsi 0xffffffffffffffff rbp 0xffff80003c9557d0 rbx 0xfffffd8007bfb618 rdx 0 rcx 0xa0c7df9f rax 0xffff80002a7aaa78 r8 0xfffffd80691e9888 r9 0xfffffd8007bfb618 r10 0xaa84b103624408d1 r11 0x5912b3fa6071f013 r12 0xffff80002a7aaa78 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff81604558 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c955750 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=144441 pid=22156 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=51, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7aa7e0,0xffff80002a7aba18 process=0xffff8000ffffba98 user=0xffff80003c950000, vmspace=0xfffffd806b900468 estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 22156 431116 61686 0 2 0 syz-executor *22156 144441 61686 0 7 0x4000000 syz-executor 22156 288143 61686 0 2 0x4000000 syz-executor 22156 188485 61686 0 3 0x4000080 fsleep syz-executor 38535 190328 18697 0 3 0x80 fsleep syz-executor 38535 181990 18697 0 3 0x4000080 msgwait syz-executor 7549 66698 27264 0 2 0 syz-executor 7549 289058 27264 0 2 0x4000000 syz-executor 7549 258136 27264 0 3 0x4000080 fsleep syz-executor 95966 59426 62911 0 2 0xc80 syz-executor 95966 282807 62911 0 3 0x4000080 fsleep syz-executor 95966 115924 62911 0 3 0x4000080 fsleep syz-executor 76961 100052 0 0 3 0x14200 acct acct 66983 251311 98536 0 2 0x2 syz-executor 18697 320251 98536 0 3 0x82 nanoslp syz-executor 27264 432114 98536 0 3 0x82 nanoslp syz-executor 75179 43352 98536 0 2 0x2 syz-executor 61686 147508 98536 0 2 0xc82 syz-executor 92959 120077 98536 0 2 0xc82 syz-executor 62911 76894 98536 0 2 0xc82 syz-executor 68100 112286 98536 0 2 0x2 syz-executor 98536 467225 6424 0 3 0x82 kqread syz-executor 6424 245671 644 0 3 0x10008a sigsusp ksh 644 355452 97717 0 3 0x98 kqread sshd-session 97717 22522 51020 0 3 0x92 kqread sshd-session 96040 314697 1 0 3 0x100083 ttyin getty 51020 492121 1 0 3 0x88 kqread sshd 11345 405681 9921 73 3 0x1100090 kqread syslogd 9921 247113 1 0 3 0x100082 sbwait syslogd 21309 398539 1 0 3 0x100080 kqread resolvd 63595 40681 73914 77 3 0x100092 kqread dhcpleased 93964 87461 73914 77 3 0x100092 kqread dhcpleased 73914 140038 1 0 3 0x80 kqread dhcpleased 47776 318808 0 0 3 0x14200 bored smr 8947 481636 0 0 2 0x14200 zerothread 98170 197053 0 0 3 0x14200 aiodoned aiodoned 31259 357812 0 0 3 0x14200 syncer update 3788 103226 0 0 3 0x14200 cleaner cleaner 77278 96761 0 0 3 0x14200 reaper reaper 29243 192621 0 0 3 0x14200 pgdaemon pagedaemon 38151 291953 0 0 3 0x14200 bored viomb 20445 506455 0 0 3 0x40014200 acpi0 acpi0 91927 292901 0 0 2 0x14200 softnet0 97220 456471 0 0 3 0x14200 bored systqmp 65620 140175 0 0 3 0x14200 bored systq 95213 146290 0 0 3 0x40014200 tmoslp softclock 20742 86017 0 0 3 0x40014200 idle0 1 195134 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 10172 11052K 11122K 166960K 11290 0 pcb 17 12K 12K 166960K 19 0 rtable 209 6K 6K 166960K 261 0 pf 32 13K 13K 166960K 33 0 ifaddr 43 7K 7K 166960K 45 0 ifgroup 52 2K 2K 166960K 52 0 sysctl 3 1K 9K 166960K 7 0 counters 35 18K 18K 166960K 35 0 ioctlops 0 0K 4K 166960K 33 0 iov 0 0K 8K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1342 84K 85K 166960K 1374 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 89K 166960K 160 0 proc 59 59K 91K 166960K 474 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 2 0K 0K 166960K 2 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 349 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 213 154K 160K 166960K 2880 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 36 72K 91K 166960K 1182 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 12 0K 2K 166960K 28 0 temp 37 8634K 8698K 166960K 3741 0 kqueue 13 20K 22K 166960K 24 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 39 0 35 1 0 1 1 0 8 0 rtentry 136 95 0 1 4 0 4 4 0 8 0 unpcb 144 42 0 27 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 17 0 10 1 0 1 1 0 8 0 arp 96 10 0 0 1 0 1 1 0 8 0 inpcb 328 73 0 62 2 0 2 2 0 8 1 nd6 112 16 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 436 0 0 28 0 28 28 0 8 0 art_table 40 437 0 0 5 0 5 5 0 8 0 art_node 32 95 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1603 0 96 95 0 95 95 0 8 0 ffsino 256 1603 0 96 95 0 95 95 0 8 0 nchpl 144 1817 0 134 63 0 63 63 0 8 0 rtmask 32 2 0 0 1 0 1 1 0 8 0 uvmvnodes 80 1694 0 0 35 0 35 35 0 8 0 vnodes 216 1694 0 0 95 0 95 95 0 8 0 namei 1024 5326 0 5325 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 6446 0 6446 8 0 8 8 1 8 8 plimitpl 152 27 0 11 1 0 1 1 0 8 0 sigapl 424 435 0 394 6 0 6 6 0 8 1 knotepl 120 3683 0 3636 9 0 9 9 0 8 7 kqueuepl 184 88 0 14 4 0 4 4 0 8 0 pipepl 304 100 0 73 3 0 3 3 0 8 0 fdescpl 448 421 0 394 5 0 5 5 0 8 1 filepl 120 1479 0 1196 9 0 9 9 0 8 0 lockfpl 104 12 0 10 1 0 1 1 0 8 0 lockfspl 48 7 0 5 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 91 0 80 1 0 1 1 0 8 0 zombiepl 144 395 0 394 1 0 1 1 0 8 0 processpl 1152 435 0 394 4 0 4 4 0 8 0 procpl 664 482 0 433 5 0 5 5 0 8 0 sockpl 552 154 0 124 3 0 3 3 0 8 0 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2486 0 2430 15 0 15 15 0 8 8 mcl2k 2048 191 0 173 3 0 3 3 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4015 0 3826 13 0 13 13 0 8 0 bufpl 280 2892 0 116 199 0 199 199 0 8 0 anonpl 24 81262 0 78269 22 0 22 22 0 187 2 amapchunkpl 152 8152 0 7720 21 0 21 21 0 158 2 amappl16 200 1100 0 1082 4 0 4 4 0 8 2 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 102 0 92 1 0 1 1 0 8 0 amappl13 176 8 0 7 1 0 1 1 0 8 0 amappl12 168 1028 0 1001 3 0 3 3 0 8 1 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 0 1 1 0 8 1 amappl9 144 256 0 255 1 0 1 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 93 0 83 1 0 1 1 0 8 0 amappl6 120 170 0 166 1 0 1 1 0 8 0 amappl5 112 113 0 107 1 0 1 1 0 8 0 amappl4 104 256 0 243 1 0 1 1 0 8 0 amappl3 96 1308 0 1226 3 0 3 3 0 8 0 amappl2 88 640 0 574 2 0 2 2 0 8 0 amappl1 80 7881 0 7336 13 0 13 13 0 8 0 amappl 88 2249 0 2100 4 0 4 4 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 421 0 394 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 421 0 394 1 0 1 1 0 8 0 vmmpekpl 168 4875 0 4836 2 0 2 2 0 8 0 vmmpepl 168 32267 0 30552 83 0 83 83 0 357 1 vmsppl 368 420 0 394 4 0 4 4 0 8 1 rwobjpl 40 12963 0 10452 26 0 26 26 0 8 0 pdppl 4096 849 0 788 91 22 69 79 0 8 8 pvpl 32 195768 0 187162 76 0 76 76 0 265 0 pmappl 216 420 0 394 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 361 0 22 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7aaa78,ffff80003c955ab0,ffff80003c955a00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaaccfdf70, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7aaa78,ffffffffffffffff,0,a0c7df9f,fffffd80691e9888,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80691e9888,4,20c7df9f,0,ffff80002a7aaa78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7aaa78,ffff80003c955ab0,ffff80003c955a00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c955ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c955ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaaccfdf70, count: -5