uvm_fault(0xffffffff83a75668, 0xffff8000297d5ff8, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_indirtrunc+0x689: movq 0(%rax,%rbx,8),%rbx TID PID UID PRFLAGS PFLAGS CPU COMMAND *365341 81758 0 0 0x4000000 0 syz-executor ffs_indirtrunc(fffffd807df30000,fffffffffffffff4,133440,ffffffffffffffff,0,ffff80003c941138) at ffs_indirtrunc+0x689 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd807df30000,0,0,ffffffffffffffff) at ffs_truncate+0x1036 sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80003c941290) at ufs_inactive+0x1ff sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8066470d80,ffff80002a7874d8) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498 vrele(fffffd8066470d80) at vrele+0x120 sys/kern/vfs_subr.c:837 ktrsettrace(ffff8000fffff180,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 ktrops(ffff80002a7874d8,ffff8000fffff180,0,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrops+0x26c sys/kern/kern_ktrace.c:573 doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7874d8,ffff80003c9416f0,ffff80003c941640) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9416f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9416f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a967ae410, count: 4 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(0xffffffff83a75668, 0xffff8000297d5ff8, 0, 1) -> d ddb> trace ffs_indirtrunc(fffffd807df30000,fffffffffffffff4,133440,ffffffffffffffff,0,ffff80003c941138) at ffs_indirtrunc+0x689 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd807df30000,0,0,ffffffffffffffff) at ffs_truncate+0x1036 sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80003c941290) at ufs_inactive+0x1ff sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8066470d80,ffff80002a7874d8) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498 vrele(fffffd8066470d80) at vrele+0x120 sys/kern/vfs_subr.c:837 ktrsettrace(ffff8000fffff180,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 ktrops(ffff80002a7874d8,ffff8000fffff180,0,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrops+0x26c sys/kern/kern_ktrace.c:573 doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7874d8,ffff80003c9416f0,ffff80003c941640) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9416f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9416f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a967ae410, count: -11 ddb> show registers rdi 0xffff800039ce6000 rsi 0x3ce5 __ALIGN_SIZE+0x2ce5 rbp 0xffff80003c941010 rbx 0x7ff rdx 0xffff800039ce6000 rcx 0x3ce4 __ALIGN_SIZE+0x2ce4 rax 0xffff8000297d2000 r8 0xffffffffffffffff r9 0xffff80003c941138 r10 0xd6c15358a604d328 r11 0xaaad2e59e3db762a r12 0xfffffffffffff7f6 r13 0x1 r14 0x2 r15 0xfffffd807df30000 rip 0xffffffff8184aee9 ffs_indirtrunc+0x689 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c940f20 ss 0x10 ffs_indirtrunc+0x689: movq 0(%rax,%rbx,8),%rbx ddb> show proc PROC (syz-executor) tid=365341 pid=81758 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=78, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000338cf248,0xffff80002a7867f0 process=0xffff8000338d2418 user=0xffff80003c93c000, vmspace=0xfffffd806cb245d0 estcpu=28, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 81758 60736 58439 0 2 0 syz-executor *81758 365341 58439 0 7 0x4000000 syz-executor 67025 466364 52268 0 2 0 syz-executor 67025 290780 52268 0 2 0x4000000 syz-executor 92547 139997 21069 0 2 0 syz-executor 92547 39271 21069 0 3 0x4000080 fsleep syz-executor 21315 357213 86466 0 2 0 syz-executor 21315 399988 86466 0 3 0x4000080 msgwait syz-executor 21315 431217 86466 0 2 0x4000000 syz-executor 67117 386320 3255 0 3 0x400080 nanoslp syz-executor 67117 361270 3255 0 3 0x4400080 kqpoll syz-executor 67117 400954 3255 0 3 0x4400080 fsleep syz-executor 62842 88391 5001 0 2 0 syz-executor 62842 360638 5001 0 3 0x4000080 kqpoll syz-executor 62842 178779 5001 0 3 0x4000080 fsleep syz-executor 13345 374841 85606 0 2 0 syz-executor 13345 222264 85606 0 3 0x4000000 smrbar syz-executor 58439 110610 79632 0 3 0x82 nanoslp syz-executor 21069 429838 79632 0 3 0x82 nanoslp syz-executor 34880 362243 0 0 3 0x14200 acct acct 5001 38093 79632 0 3 0x82 nanoslp syz-executor 3255 442003 79632 0 3 0x82 nanoslp syz-executor 86466 130535 79632 0 3 0x82 nanoslp syz-executor 85606 174010 79632 0 3 0x82 nanoslp syz-executor 52268 301807 79632 0 3 0x82 nanoslp syz-executor 79632 243295 26339 0 3 0x82 wait syz-executor 26339 385283 87659 0 3 0x10008a sigsusp ksh 87659 452988 59783 0 3 0x98 kqread sshd-session 59783 24855 68017 0 3 0x92 kqread sshd-session 82404 464229 1 0 3 0x100083 ttyopn getty 68017 190518 1 0 3 0x88 kqread sshd 28457 122654 12699 73 3 0x1100090 kqread syslogd 12699 396902 1 0 3 0x100082 sbwait syslogd 49936 168639 1 0 3 0x100080 kqread resolvd 33189 19646 10500 77 3 0x100092 kqread dhcpleased 730 202047 10500 77 3 0x100092 kqread dhcpleased 10500 321647 1 0 3 0x80 kqread dhcpleased 39872 165447 0 0 3 0x14200 bored smr 16176 62822 0 0 2 0x14200 zerothread 22300 478642 0 0 3 0x14200 aiodoned aiodoned 18108 54699 0 0 3 0x14200 syncer update 99295 74332 0 0 3 0x14200 cleaner cleaner 95805 449512 0 0 3 0x14200 reaper reaper 70217 443456 0 0 3 0x14200 pgdaemon pagedaemon 47481 166913 0 0 3 0x14200 bored viomb 6487 140807 0 0 3 0x40014200 acpi0 acpi0 58125 212031 0 0 3 0x14200 bored softnet0 75768 360983 0 0 3 0x14200 bored systqmp 18602 411204 0 0 3 0x14200 bored systq 3430 421519 0 0 3 0x40014200 tmoslp softclock 13575 436962 0 0 3 0x40014200 idle0 1 70910 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 11046 12188K 12662K 166960K 12574 0 pcb 17 18K 23K 166960K 430 0 rtable 263 9K 9K 166960K 520 0 pf 38 14K 20K 166960K 111 0 ifaddr 44 8K 8K 166960K 80 0 ifgroup 54 2K 2K 166960K 114 0 sysctl 3 1K 9K 166960K 12 0 counters 35 18K 18K 166960K 60 0 ioctlops 0 0K 4K 166960K 250 0 iov 0 0K 16K 166960K 31 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1384 87K 87K 166960K 1966 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 90 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 106K 166960K 734 0 sigio 0 0K 0K 166960K 72 0 proc 60 59K 83K 166960K 620 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 64 0 in_multi 102 7K 7K 166960K 138 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 26 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 786 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 222 152K 173K 166960K 8190 0 UVM aobj 24 4K 4K 166960K 25 0 pinsyscall 38 76K 92K 166960K 1883 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 25 0 NDP 13 0K 2K 166960K 55 0 temp 55 9075K 9182K 166960K 30944 0 kqueue 13 20K 30K 166960K 134 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 84 0 81 1 0 1 1 0 8 0 rtentry 136 161 0 46 5 0 5 5 0 8 0 unpcb 144 439 0 424 6 0 6 6 0 8 5 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 222 0 217 7 0 7 7 0 8 6 arp 96 23 0 6 1 0 1 1 0 8 0 ipq 40 7 0 1 1 0 1 1 0 8 0 ipqe 40 12 0 4 1 0 1 1 0 8 0 inpcb 328 1034 0 1024 15 5 10 15 0 8 8 ip6q 72 8 0 4 1 0 1 1 0 8 0 ip6af 40 18 0 13 1 0 1 1 0 8 0 nd6 112 47 0 18 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1072 20 0 18 1 0 1 1 0 8 0 pppxif 1416 2 0 2 1 0 1 1 0 8 1 pfstscr 40 5 0 3 1 0 1 1 0 8 0 pfsrclim 320 2 0 2 1 0 1 1 0 8 1 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 10 0 6 1 0 1 1 0 8 0 pfstate 384 5 0 3 1 0 1 1 0 8 0 pfrule 1360 9 0 6 1 0 1 1 0 8 0 rttmr 136 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 776 0 297 37 0 37 37 0 8 3 art_table 40 777 0 297 6 0 6 6 0 8 0 art_node 32 160 0 57 1 0 1 1 0 8 0 sysvmsgpl 40 72 0 71 1 0 1 1 0 8 0 semapl 112 86 0 76 1 0 1 1 0 8 0 shmpl 112 22 0 1 1 0 1 1 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 2669 0 1208 92 0 92 92 0 8 0 ffsino 256 2669 0 1208 92 0 92 92 0 8 0 nchpl 144 3670 0 1964 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 3115 0 0 174 0 174 174 0 8 0 namei 1024 12388 0 12388 1 0 1 1 0 8 1 kstatmem 264 69 0 42 2 0 2 2 0 8 0 scsiplug 72 6 0 6 1 0 1 1 0 8 1 scxspl 216 16476 0 16476 8 0 8 8 1 8 8 plimitpl 152 169 0 151 1 0 1 1 0 8 0 sigapl 424 1020 0 977 6 0 6 6 0 8 1 knotepl 120 24171 0 24124 17 7 10 17 0 8 7 kqueuepl 184 236 0 225 4 0 4 4 0 8 3 pipepl 304 151 0 124 3 0 3 3 0 8 0 fdescpl 448 1006 0 977 5 0 5 5 0 8 1 filepl 120 6028 0 5811 13 0 13 13 0 8 4 lockfpl 104 436 0 432 2 0 2 2 0 8 1 lockfspl 48 169 0 165 1 0 1 1 0 8 0 sessionpl 144 42 0 33 1 0 1 1 0 8 0 pgrppl 48 61 0 44 1 0 1 1 0 8 0 ucredpl 104 891 0 879 1 0 1 1 0 8 0 zombiepl 144 978 0 977 1 0 1 1 0 8 0 processpl 1152 1020 0 977 4 0 4 4 0 8 0 procpl 664 1854 0 1801 6 0 6 6 0 8 1 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 552 1610 0 1582 19 7 12 17 0 8 8 mcl64k 65536 100 0 100 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 19 0 18 1 0 1 1 0 8 0 mcl4k 4096 3275 0 3219 16 1 15 16 0 8 7 mcl2k 2048 660 0 654 4 0 4 4 0 8 3 mtagpl 96 8 0 6 1 0 1 1 0 8 0 mbufpl 256 10864 0 10683 19 0 19 19 0 8 2 bufpl 280 6821 0 607 444 0 444 444 0 8 0 anonpl 24 179143 0 175910 68 0 68 68 0 187 35 amapchunkpl 152 26927 0 26456 36 0 36 36 0 158 16 amappl16 200 4010 0 3980 34 21 13 27 0 8 8 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 443 0 442 1 0 1 1 0 8 0 amappl13 176 133 0 123 1 0 1 1 0 8 0 amappl12 168 1257 0 1229 2 0 2 2 0 8 0 amappl11 160 2 0 2 1 0 1 1 0 8 1 amappl10 152 64 0 54 1 0 1 1 0 8 0 amappl9 144 259 0 259 1 0 1 1 0 8 1 amappl8 136 121 0 120 1 0 1 1 0 8 0 amappl7 128 147 0 135 1 0 1 1 0 8 0 amappl6 120 174 0 172 1 0 1 1 0 8 0 amappl5 112 96 0 88 1 0 1 1 0 8 0 amappl4 104 265 0 248 1 0 1 1 0 8 0 amappl3 96 5131 0 5020 4 0 4 4 0 8 0 amappl2 88 551 0 496 2 0 2 2 0 8 0 amappl1 80 12012 0 11460 15 0 15 15 0 8 2 amappl 88 7349 0 7191 5 0 5 5 0 92 0 uvmvnodes 80 119 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 7 0 7 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 24 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1006 0 977 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1006 0 977 1 0 1 1 0 8 0 vmmpekpl 168 9071 0 9040 2 0 2 2 0 8 0 vmmpepl 168 71161 0 69378 102 0 102 102 0 357 21 vmsppl 368 1005 0 977 4 0 4 4 0 8 1 rwobjpl 40 21835 0 20845 15 0 15 15 0 8 2 pdppl 4096 2018 0 1954 112 46 66 80 0 8 2 pvpl 32 468969 0 459908 149 0 149 149 0 265 55 pmappl 216 1005 0 977 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 401 0 47 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ffs_indirtrunc(fffffd807df30000,fffffffffffffff4,133440,ffffffffffffffff,0,ffff80003c941138) at ffs_indirtrunc+0x689 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd807df30000,0,0,ffffffffffffffff) at ffs_truncate+0x1036 sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80003c941290) at ufs_inactive+0x1ff sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8066470d80,ffff80002a7874d8) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498 vrele(fffffd8066470d80) at vrele+0x120 sys/kern/vfs_subr.c:837 ktrsettrace(ffff8000fffff180,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 ktrops(ffff80002a7874d8,ffff8000fffff180,0,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrops+0x26c sys/kern/kern_ktrace.c:573 doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7874d8,ffff80003c9416f0,ffff80003c941640) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9416f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9416f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a967ae410, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace ffs_indirtrunc(fffffd807df30000,fffffffffffffff4,133440,ffffffffffffffff,0,ffff80003c941138) at ffs_indirtrunc+0x689 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd807df30000,0,0,ffffffffffffffff) at ffs_truncate+0x1036 sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80003c941290) at ufs_inactive+0x1ff sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8066470d80,ffff80002a7874d8) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498 vrele(fffffd8066470d80) at vrele+0x120 sys/kern/vfs_subr.c:837 ktrsettrace(ffff8000fffff180,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 ktrops(ffff80002a7874d8,ffff8000fffff180,0,80000538,fffffd807d51fe78,fffffd8007ffd6e8) at ktrops+0x26c sys/kern/kern_ktrace.c:573 doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807d51fe78,4,538,0,ffff80002a7874d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7874d8,ffff80003c9416f0,ffff80003c941640) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9416f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9416f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a967ae410, count: -11