uvm_fault(0xffffffff83a29278, 0xffff8000249c2000, 0, 2) -> d kernel: page fault trap, code=2 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND 241866 42205 0 0 0 1 syz-executor * 8390 83911 0 0x2 0 0 syz-executor memcpy() at memcpy+0x19 ufs_reclaim(fffffd805db59e60) at ufs_reclaim+0x10f sys/ufs/ufs/ufs_inode.c:137 ffs_reclaim(ffff80002a399de8) at ffs_reclaim+0x43 sys/ufs/ffs/ffs_vnops.c:519 VOP_RECLAIM(fffffd805db59e60,ffff8000fffeed10) at VOP_RECLAIM+0x77 sys/kern/vfs_vops.c:512 vclean(fffffd805db59e60,8,ffff8000fffeed10) at vclean+0x322 sys/kern/vfs_subr.c:1095 vgonel(fffffd805db59e60,ffff8000fffeed10) at vgonel+0xb0 sys/kern/vfs_subr.c:1185 vrecycle(fffffd805db59e60,ffff8000fffeed10) at vrecycle+0x7c sys/kern/vfs_subr.c:1136 ufs_inactive(ffff80002a399fb0) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107 VOP_INACTIVE(fffffd805db59e60,ffff8000fffeed10) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd805db59e60) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd805ca62af8,fffffd805db59e60,ffff80002a39a118) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000fffeed10,ffffff9c,7d2ad7a00930,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a39a290) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39a290) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d2ad7a00de0, count: 1 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: uvm_fault(0xffffffff83a29278, 0xffff8000249c2000, 0, 2) -> d ddb{0}> trace memcpy() at memcpy+0x19 ufs_reclaim(fffffd805db59e60) at ufs_reclaim+0x10f sys/ufs/ufs/ufs_inode.c:137 ffs_reclaim(ffff80002a399de8) at ffs_reclaim+0x43 sys/ufs/ffs/ffs_vnops.c:519 VOP_RECLAIM(fffffd805db59e60,ffff8000fffeed10) at VOP_RECLAIM+0x77 sys/kern/vfs_vops.c:512 vclean(fffffd805db59e60,8,ffff8000fffeed10) at vclean+0x322 sys/kern/vfs_subr.c:1095 vgonel(fffffd805db59e60,ffff8000fffeed10) at vgonel+0xb0 sys/kern/vfs_subr.c:1185 vrecycle(fffffd805db59e60,ffff8000fffeed10) at vrecycle+0x7c sys/kern/vfs_subr.c:1136 ufs_inactive(ffff80002a399fb0) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107 VOP_INACTIVE(fffffd805db59e60,ffff8000fffeed10) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd805db59e60) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd805ca62af8,fffffd805db59e60,ffff80002a39a118) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000fffeed10,ffffff9c,7d2ad7a00930,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a39a290) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39a290) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d2ad7a00de0, count: -14 ddb{0}> show registers rdi 0xffff8000249c2000 rsi 0xfffffd806aff6400 rbp 0xffff80002a399d40 rbx 0xffff8000249c2000 rdx 0x100 rcx 0x20 rax 0xffffffff838f0ff0 cpu_info_full_primary+0x1ff0 r8 0xffffffffffffffff r9 0x32a00 acpi_pdirpa+0x1e871 r10 0x128ba13580bde4aa r11 0xffff8000249c2000 r12 0 r13 0x2 r14 0 r15 0xfffffd8061208250 rip 0xffffffff8284b3e9 memcpy+0x19 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a399cd8 ss 0x10 memcpy+0x19: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor) tid=8390 pid=83911 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeefa8,0xffff800033bc3a28 process=0xffff80002a39f9d8 user=0xffff80002a395000, vmspace=0xfffffd806f5997a8 estcpu=36, cpticks=16, pctcpu=0.7, user=0, sys=16, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 46279 135708 28128 -1 2 0x10 syz-executor 46279 149126 28128 -1 3 0x4000090 msgwait syz-executor 41842 419114 32480 0 3 0x80 nanoslp syz-executor 41842 10775 32480 0 3 0x4000080 kqread syz-executor 41842 227214 32480 0 3 0x4000080 fsleep syz-executor 42205 241866 78120 0 7 0 syz-executor 42205 293459 78120 0 3 0x4000080 sbwait syz-executor 42205 247751 78120 0 3 0x4000080 fsleep syz-executor 89430 94763 14161 0 3 0x80 nanoslp syz-executor 89430 4305 14161 0 3 0x4000080 netacc syz-executor 89430 38777 14161 0 3 0x4000080 fsleep syz-executor 83686 281359 0 0 3 0x14200 acct acct *83911 8390 59897 0 7 0x2 syz-executor 14161 50325 59897 0 2 0xc82 syz-executor 78120 271411 59897 0 2 0xc82 syz-executor 27928 374933 59897 0 2 0xc82 syz-executor 32480 390741 59897 0 3 0x82 nanoslp syz-executor 28128 6753 59897 0 3 0x82 nanoslp syz-executor 59897 202695 78093 0 3 0x82 wait syz-executor 78093 105138 6458 0 3 0x10008a sigsusp ksh 6458 145022 94849 0 3 0x98 kqread sshd-session 94849 159605 26881 0 3 0x92 kqread sshd-session 77389 121067 1 0 3 0x100083 ttyopn getty 26881 42367 1 0 3 0x88 kqread sshd 75351 26294 78363 74 3 0x1100092 bpf pflogd 78363 330342 1 0 3 0x80 sbwait pflogd 2425 32639 42692 73 3 0x1100090 kqread syslogd 42692 379515 1 0 3 0x100082 sbwait syslogd 58848 34997 1 0 3 0x100080 kqread resolvd 53510 91974 52961 77 3 0x100092 kqread dhcpleased 57926 259997 52961 77 3 0x100092 kqread dhcpleased 52961 320100 1 0 3 0x80 kqread dhcpleased 73453 403329 0 0 3 0x14200 pause smr 60520 267591 0 0 3 0x14200 pgzero zerothread 5840 147943 0 0 3 0x14200 aiodoned aiodoned 27242 14815 0 0 3 0x14200 syncer update 9774 81218 0 0 3 0x14200 cleaner cleaner 91049 45410 0 0 3 0x14200 reaper reaper 58455 340017 0 0 3 0x14200 pgdaemon pagedaemon 64912 33360 0 0 3 0x14200 bored viomb 44911 392065 0 0 3 0x40014200 acpi0 acpi0 59815 440762 0 0 3 0x40014200 idle1 12879 8681 0 0 3 0x14200 bored softnet1 80451 3183 0 0 3 0x14200 bored softnet0 41400 336515 0 0 3 0x14200 bored systqmp 71017 500692 0 0 3 0x14200 bored systq 10628 467647 0 0 3 0x14200 tmoslp softclockmp 88565 149787 0 0 3 0x40014200 tmoslp softclock 40826 442660 0 0 3 0x40014200 idle0 1 30077 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 83911 (syz-executor) thread 0xffff8000fffeed10 (8390) exclusive rrwlock inode r = 0 (0xfffffd806c82a560) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #13 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83aacc40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11069 12212K 12418K 166960K 12554 0 pcb 17 13K 13K 166960K 75 0 rtable 189 6K 7K 166960K 374 0 pf 35 17K 21K 166960K 86 0 ifaddr 39 6K 7K 166960K 59 0 ifgroup 56 2K 2K 166960K 81 0 sysctl 3 1K 9K 166960K 7 0 counters 70 37K 38K 166960K 98 0 ioctlops 0 0K 4K 166960K 1573 0 iov 0 0K 16K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1329 84K 84K 166960K 1690 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 12 1K 1K 166960K 15 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 93K 166960K 437 0 sigio 0 0K 0K 166960K 71 0 proc 72 115K 164K 166960K 593 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 35 0 in_multi 89 6K 7K 166960K 114 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 13 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 476 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 226 159K 177K 166960K 6033 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 40 80K 104K 166960K 1594 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 12 0K 2K 166960K 37 0 temp 47 9080K 9147K 166960K 18521 0 kqueue 14 22K 26K 166960K 76 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 149 0 146 4 0 4 4 0 8 3 rtentry 176 116 0 32 6 0 6 6 0 8 0 unpcb 144 225 0 206 4 0 4 4 0 8 3 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 151 0 141 4 0 4 4 0 8 2 arp 136 18 0 6 1 0 1 1 0 8 0 inpcb 328 545 0 529 7 0 7 7 0 8 5 nd6 152 27 0 3 2 0 2 2 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 11 0 11 1 0 1 1 0 8 1 pppxif 1576 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 0 1 0 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 pfrktable 1344 2 0 2 1 0 1 1 0 8 1 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pftag 88 2 0 2 1 0 1 1 0 8 1 pfstitem 24 32 0 0 1 0 1 1 0 8 0 pfstkey 128 32 0 0 2 0 2 2 0 8 0 pfstate 448 32 0 0 4 0 4 4 0 8 0 pfrule 1360 25 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 496 0 99 31 0 31 31 0 8 3 art_table 40 497 0 99 5 0 5 5 0 8 0 art_node 32 116 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2203 0 734 93 0 93 93 0 8 0 ffsino 296 2203 0 734 114 0 114 114 0 8 0 nchpl 144 2829 0 1122 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2438 0 0 136 0 136 136 0 8 0 namei 1024 9386 0 9386 1 0 1 1 0 8 1 percpumem 16 64 0 14 1 0 1 1 0 8 0 kstatmem 264 44 0 18 3 0 3 3 0 8 1 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 20704 0 20704 4 3 1 3 1 8 1 plimitpl 152 141 0 123 1 0 1 1 0 8 0 sigapl 424 754 0 708 7 0 7 7 0 8 1 knotepl 120 319 0 0 10 0 10 10 0 8 0 kqueuepl 224 166 0 155 5 0 5 5 0 8 4 pipepl 344 178 0 151 6 0 6 6 0 8 3 fdescpl 528 737 0 708 3 0 3 3 0 8 0 filepl 160 4326 0 4104 17 0 17 17 0 8 6 lockfpl 104 160 0 158 1 0 1 1 0 8 0 lockfspl 48 67 0 65 1 0 1 1 0 8 0 sessionpl 144 45 0 36 1 0 1 1 0 8 0 pgrppl 48 57 0 40 1 0 1 1 0 8 0 ucredpl 104 656 0 642 1 0 1 1 0 8 0 zombiepl 144 711 0 708 1 0 1 1 0 8 0 processpl 1232 754 0 708 5 1 4 5 0 8 0 procpl 664 1284 0 1231 6 0 6 6 0 8 1 sosppl 176 3 0 3 1 0 1 1 0 8 1 sockpl 752 940 0 901 15 3 12 14 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 697 0 0 44 0 44 44 0 8 0 bufpl 280 8961 0 2831 438 0 438 438 0 8 0 anonpl 32 14496 0 0 117 0 117 117 0 246 0 amapchunkpl 152 18777 0 18332 30 0 30 30 0 158 8 amappl16 200 4124 0 3876 52 16 36 37 0 8 11 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 434 0 433 1 0 1 1 0 8 0 amappl13 176 124 0 112 1 0 1 1 0 8 0 amappl12 168 996 0 967 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 67 0 53 1 0 1 1 0 8 0 amappl9 144 264 0 264 1 1 0 1 0 8 0 amappl8 136 137 0 135 1 0 1 1 0 8 0 amappl7 128 149 0 136 1 0 1 1 0 8 0 amappl6 120 162 0 160 1 0 1 1 0 8 0 amappl5 112 99 0 87 1 0 1 1 0 8 0 amappl4 104 299 0 279 1 0 1 1 0 8 0 amappl3 96 3486 0 3383 4 0 4 4 0 8 0 amappl2 88 543 0 482 2 0 2 2 0 8 0 amappl1 80 11455 0 10857 17 0 17 17 0 8 3 amappl 88 5250 0 5096 5 0 5 5 0 92 0 uvmvnodes 80 116 0 0 3 0 3 3 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 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 128 254 0 254 2 1 1 1 0 8 1 dma64 64 7 0 7 2 1 1 1 0 8 1 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 737 0 708 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 737 0 708 1 0 1 1 0 8 0 vmmpekpl 168 7991 0 7950 2 0 2 2 0 8 0 vmmpepl 168 56966 0 54921 117 0 117 117 0 357 4 vmsppl 488 736 0 708 5 0 5 5 0 8 1 rwobjpl 80 19946 0 18680 36 0 36 36 0 8 2 pdppl 4096 1481 0 1416 101 26 75 85 0 8 10 pvpl 32 22725 0 0 184 0 184 184 0 265 0 pmappl 256 736 0 708 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 315 0 29 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace memcpy() at memcpy+0x19 ufs_reclaim(fffffd805db59e60) at ufs_reclaim+0x10f sys/ufs/ufs/ufs_inode.c:137 ffs_reclaim(ffff80002a399de8) at ffs_reclaim+0x43 sys/ufs/ffs/ffs_vnops.c:519 VOP_RECLAIM(fffffd805db59e60,ffff8000fffeed10) at VOP_RECLAIM+0x77 sys/kern/vfs_vops.c:512 vclean(fffffd805db59e60,8,ffff8000fffeed10) at vclean+0x322 sys/kern/vfs_subr.c:1095 vgonel(fffffd805db59e60,ffff8000fffeed10) at vgonel+0xb0 sys/kern/vfs_subr.c:1185 vrecycle(fffffd805db59e60,ffff8000fffeed10) at vrecycle+0x7c sys/kern/vfs_subr.c:1136 ufs_inactive(ffff80002a399fb0) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107 VOP_INACTIVE(fffffd805db59e60,ffff8000fffeed10) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd805db59e60) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd805ca62af8,fffffd805db59e60,ffff80002a39a118) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000fffeed10,ffffff9c,7d2ad7a00930,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a39a290) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39a290) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d2ad7a00de0, count: -14 ddb{0}> machine ddbcpu 1