uvm_fault(0xfffff8806d8f9180, 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 *351417 19387 0 0 0x4000000 0 syz-executor ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c8fbca8,ffff80002a777c10,ffff80002a777b60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a777c10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a777c10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3f67d44db0, 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(0xfffff8806d8f9180, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c8fbca8,ffff80002a777c10,ffff80002a777b60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a777c10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a777c10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3f67d44db0, count: -5 ddb> show registers rdi 0xffff80003a8e2000 rsi 0x5f23 __ALIGN_SIZE+0x4f23 rbp 0xffff80002a777930 rbx 0xfffff88007ffd2d8 rdx 0xffff80003a8e2000 rcx 0x5f22 __ALIGN_SIZE+0x4f22 rax 0xffffffff8262f313 ktrops+0x43 r8 0xfffff8807043ea30 r9 0xfffff88007ffd2d8 r10 0x33c0e07ca48db263 r11 0xf266844a12991aa9 r12 0xffff80003c8fbca8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff8262f328 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a7778b0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=351417 pid=19387 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=61, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c8fb778,0xffff80003c8fafc0 process=0xffff800045ffb198 user=0xffff80002a772000, vmspace=0xfffff8806d8f9180 estcpu=11, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 18938 227460 38463 0 2 0 0 syz-executor 65166 132017 88389 0 2 0 0 syz-executor 65166 453048 88389 0 2 0 0x4000000 syz-executor 65166 431797 88389 0 3 0 0x4000000 inode syz-executor 65166 420100 88389 0 3 0 0x4000080 fsleep syz-executor 19387 450710 77619 0 2 0 0 syz-executor 19387 395940 77619 0 2 0 0x4000000 syz-executor *19387 351417 77619 0 7 0 0x4000000 syz-executor 19387 92757 77619 0 3 0 0x4000000 inode syz-executor 8991 276164 63871 0 2 0 0 syz-executor 8991 18711 63871 0 3 0 0x4000000 physio syz-executor 8991 252190 63871 0 3 0 0x4000080 fsleep syz-executor 77619 181838 35358 0 3 0x2 0x80 nanoslp syz-executor 93468 378332 35358 0 3 0x2 0 biowait syz-executor 57172 266650 35358 0 3 0x2 0x80 nanoslp syz-executor 71612 210169 35358 0 3 0x2 0x80 nanoslp syz-executor 38463 255517 35358 0 3 0x2 0x80 nanoslp syz-executor 63871 387898 35358 0 3 0x2 0x80 nanoslp syz-executor 53712 387884 35358 0 3 0x2 0x80 wait syz-executor 88389 381342 35358 0 3 0x2 0x80 nanoslp syz-executor 35358 150406 57865 0 3 0x2 0x80 kqread syz-executor 57865 431293 1 0 3 0x100802 0x2008 bqwait ksh 40270 289165 1 0 3 0x100803 0x2000 bqwait getty 47958 110863 1 0 3 0x10000800 0x2008 bqwait sshd 10124 495456 1 0 3 0x10100802 0x2000 bqwait syslogd 37164 516112 1 0 3 0x100800 0x2000 bqwait resolvd 43396 103779 0 0 3 0x14000 0x200 bored smr 23681 378135 0 0 2 0x14000 0x200 zerothread 3362 210929 0 0 3 0x14000 0x200 aiodoned aiodoned 41392 57904 0 0 3 0x14000 0x200 syncer update 40256 38463 0 0 3 0x14000 0x200 cleaner cleaner 52908 114225 0 0 3 0x14000 0x200 reaper reaper 62047 311216 0 0 3 0x14000 0x200 pgdaemon pagedaemon 71150 201006 0 0 3 0x14000 0x200 bored viomb 75628 366303 0 0 3 0x14000 0x40000200 acpi0 acpi0 16417 170915 0 0 3 0x14000 0x200 bored softnet0 9770 110685 0 0 3 0x14000 0x200 bored systqmp 70300 284269 0 0 3 0x14000 0x200 bored systq 39328 236904 0 0 3 0x14000 0x40000200 tmoslp softclock 10468 317592 0 0 3 0x14000 0x40000200 idle0 1 204900 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11025 12101K 12320K 166960K 12181 0 pcb 19 12K 12K 166960K 41 0 rtable 218 6K 7K 166960K 377 0 pf 30 12K 19K 166960K 47 0 ifaddr 42 7K 7K 166960K 46 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 3 1K 9K 166960K 8 0 counters 33 17K 17K 166960K 33 0 ioctlops 0 0K 4K 166960K 50 0 iov 0 0K 16K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1359 85K 86K 166960K 1498 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 15 57K 93K 166960K 228 0 proc 53 42K 108K 166960K 509 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 11 0 in_multi 99 6K 6K 166960K 106 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 389 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 185 121K 170K 166960K 3769 0 UVM aobj 71 3K 3K 166960K 72 0 pinsyscall 26 52K 94K 166960K 1328 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 11 0K 2K 166960K 27 0 temp 45 9137K 9149K 166960K 9358 0 kqueue 4 8K 24K 166960K 41 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 41 0 40 1 0 1 1 0 8 0 rtentry 136 119 0 19 4 0 4 4 0 8 0 unpcb 144 88 0 87 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 24 0 21 1 0 1 1 0 8 0 arp 96 20 0 3 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 124 0 118 2 0 2 2 0 8 1 nd6 112 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 5 0 2 1 0 1 1 0 8 0 pftag 88 1 0 1 1 0 1 1 0 8 1 pfrule 1360 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 494 0 49 29 0 29 29 0 8 1 art_table 40 495 0 49 5 0 5 5 0 8 0 art_node 32 119 0 29 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 72 6 0 2 1 0 1 1 0 8 0 shmpl 112 69 0 1 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1732 0 267 92 0 92 92 0 8 0 ffsino 256 1734 0 267 92 0 92 92 0 8 0 nchpl 144 2043 0 348 63 0 63 63 0 8 0 vnodes 216 1927 0 0 108 0 108 108 0 8 0 namei 1024 6246 0 6236 2 0 2 2 0 8 0 kstatmem 264 23 0 0 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7735 0 7660 8 0 8 8 1 8 1 plimitpl 152 37 0 23 1 0 1 1 0 8 0 sigapl 424 523 0 485 6 0 6 6 0 8 1 knotepl 120 5445 0 5423 4 0 4 4 0 8 2 kqueuepl 184 50 0 46 1 0 1 1 0 8 0 pipepl 304 129 0 102 3 0 3 3 0 8 0 fdescpl 448 510 0 487 5 0 5 5 0 8 1 filepl 120 2052 0 1869 9 0 9 9 0 8 1 lockfpl 104 41 0 40 1 0 1 1 0 8 0 lockfspl 48 20 0 19 1 0 1 1 0 8 0 sessionpl 144 26 0 18 1 0 1 1 0 8 0 pgrppl 48 34 0 18 1 0 1 1 0 8 0 ucredpl 104 238 0 224 1 0 1 1 0 8 0 zombiepl 144 490 0 485 1 0 1 1 0 8 0 processpl 1152 523 0 485 4 0 4 4 0 8 0 procpl 664 673 0 627 5 0 5 5 0 8 0 sockpl 552 260 0 252 3 0 3 3 0 8 0 mcl64k 65536 2 0 2 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2654 0 2603 14 0 14 14 0 8 7 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 222 0 221 1 0 1 1 0 8 0 mextrefs 64 89 0 89 1 0 1 1 0 8 1 mtagpl 96 5 0 4 1 0 1 1 0 8 0 mbufpl 256 5209 0 5058 17 0 17 17 0 8 7 bufpl 272 3409 0 102 221 0 221 221 0 8 0 anonpl 24 101927 0 93013 57 0 57 57 0 187 3 amapchunkpl 152 11353 0 10440 36 0 36 36 0 158 0 amappl16 200 1726 0 1463 15 0 15 15 0 8 0 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 419 0 418 1 0 1 1 0 8 0 amappl13 176 113 0 109 1 0 1 1 0 8 0 amappl12 168 750 0 729 2 0 2 2 0 8 0 amappl11 160 3 0 2 1 0 1 1 0 8 0 amappl10 152 61 0 59 1 0 1 1 0 8 0 amappl9 144 281 0 281 1 0 1 1 0 8 1 amappl8 136 95 0 95 1 0 1 1 0 8 1 amappl7 128 141 0 140 1 0 1 1 0 8 0 amappl6 120 167 0 166 1 0 1 1 0 8 0 amappl5 112 92 0 90 1 0 1 1 0 8 0 amappl4 104 267 0 259 1 0 1 1 0 8 0 amappl3 96 1852 0 1786 3 0 3 3 0 8 0 amappl2 88 630 0 606 2 0 2 2 0 8 0 amappl1 80 10529 0 10441 13 0 13 13 0 8 5 amappl 88 3022 0 2885 4 0 4 4 0 92 0 uvmvnodes 80 101 0 0 3 0 3 3 0 8 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 128 254 0 254 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 8 0 8 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 71 0 1 2 0 2 2 0 8 0 uaddrrnd 24 510 0 487 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 510 0 487 1 0 1 1 0 8 0 vmmpekpl 168 5999 0 5970 2 0 2 2 0 8 0 vmmpepl 168 41757 0 40553 91 0 91 91 0 357 18 vmsppl 368 509 0 487 4 0 4 4 0 8 1 rwobjpl 40 15015 0 14279 13 0 13 13 0 8 0 pdppl 4096 1026 0 974 94 28 66 80 0 8 14 pvpl 32 246772 0 232909 140 0 140 140 0 265 28 pmappl 216 509 0 487 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 584 0 28 16 0 16 16 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c8fbca8,ffff80002a777c10,ffff80002a777b60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a777c10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a777c10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3f67d44db0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c8fbca8,ffffffffffffffff,0,a0c7df9f,fffff8807043ea30,fffff88007ffd2d8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8807043ea30,4,20c7df9f,0,ffff80003c8fbca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c8fbca8,ffff80002a777c10,ffff80002a777b60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a777c10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a777c10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3f67d44db0, count: -5 ddb>