uvm_fault(0xffffffff83a03e28, 0xffff80001f3b5ff8, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_indirtrunc+0x699: movq 0(%rax,%rbx,8),%rbx TID PID UID PRFLAGS PFLAGS CPU COMMAND *521298 3515 0 0x2 0 0K syz-executor ffs_indirtrunc(fffffd806e5de3f8,fffffffffffffff4,9b3c0,ffffffffffffffff,0,ffff80002a2c7be8) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd806e5de3f8,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a2c7d40) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8078b36ce0,ffff8000ffffd760) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd8078b36ce0) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8078b36620,fffffd8078b36ce0,ffff80002a2c7ea8) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffd760,ffffff9c,7e5904a791c0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2c8020) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2c8020) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e5904a79670, count: 6 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(0xffffffff83a03e28, 0xffff80001f3b5ff8, 0, 1) -> d ddb{0}> trace ffs_indirtrunc(fffffd806e5de3f8,fffffffffffffff4,9b3c0,ffffffffffffffff,0,ffff80002a2c7be8) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd806e5de3f8,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a2c7d40) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8078b36ce0,ffff8000ffffd760) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd8078b36ce0) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8078b36620,fffffd8078b36ce0,ffff80002a2c7ea8) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffd760,ffffff9c,7e5904a791c0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2c8020) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2c8020) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e5904a79670, count: -9 ddb{0}> show registers rdi 0x2 rsi 0x2 rbp 0xffff80002a2c7ac0 rbx 0x7ff rdx 0 rcx 0xffff8000ffffd760 rax 0xffff80001f3b2000 r8 0xffffffffffffffff r9 0xffff80002a2c7be8 r10 0xffff80002a2c77c0 r11 0x168b5cf7569f1dd4 r12 0xfffffffffffff7f6 r13 0x1 r14 0x2 r15 0xfffffd806e5de3f8 rip 0xffffffff81efda89 ffs_indirtrunc+0x699 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a2c79d0 ss 0x10 ffs_indirtrunc+0x699: movq 0(%rax,%rbx,8),%rbx ddb{0}> show proc PROC (syz-executor) tid=521298 pid=3515 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a242540,0xffff8000ffffcd10 process=0xffff8000ffff3030 user=0xffff80002a2c3000, vmspace=0xfffffd806e8b91f8 estcpu=36, cpticks=143, pctcpu=0.69, user=3, sys=128, intr=12 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58598 271980 1 0 3 0x80 nanoslp init 23125 91554 0 0 3 0x14200 acct acct 99192 424689 97580 0 3 0x82 nanoslp syz-executor * 3515 521298 97580 0 7 0x2 syz-executor 97580 344887 1 0 3 0x82 wait syz-executor 93931 393062 32736 0 3 0x98 kqread sshd-session 32736 183170 1 0 3 0x92 kqread sshd-session 66724 483958 1 74 3 0x1100092 bpf pflogd 6398 208648 1 73 3 0x1100090 kqread syslogd 25769 182118 0 0 3 0x14200 bored smr 18965 16240 0 0 2 0x14200 zerothread 83828 443566 0 0 3 0x14200 aiodoned aiodoned 89262 426802 0 0 3 0x14200 syncer update 54555 410851 0 0 3 0x14200 cleaner cleaner 80188 512260 0 0 3 0x14200 reaper reaper 23443 147957 0 0 3 0x14200 pgdaemon pagedaemon 83284 391161 0 0 3 0x14200 bored viomb 8777 20305 0 0 3 0x40014200 acpi0 acpi0 34011 45568 0 0 7 0x40014200 idle1 6790 216566 0 0 3 0x14200 bored softnet1 51979 81284 0 0 3 0x14200 bored softnet0 63325 129676 0 0 3 0x14200 smrbar systqmp 93458 356867 0 0 3 0x14200 bored systq 70554 296479 0 0 3 0x14200 tmoslp softclockmp 42220 235353 0 0 3 0x40014200 tmoslp softclock 38953 273994 0 0 3 0x40014200 idle0 1 25990 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 3515 (syz-executor) thread 0xffff8000ffffd760 (521298) exclusive rrwlock inode r = 0 (0xfffffd806e5de498) #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:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8072ac1578) #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:576 #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 (0xffffffff83999540) #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 Process 63325 (systqmp) thread 0xffff8000ffffe7c8 (129676) shared rwlock systqmp r = 0 (0xffffffff83923dd8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11078 12144K 13068K 166960K 13144 0 pcb 17 12K 12K 166960K 114 0 rtable 214 9K 11K 166960K 561 0 pf 33 17K 25K 166960K 275 0 ifaddr 33 5K 7K 166960K 90 0 ifgroup 47 2K 2K 166960K 130 0 sysctl 4 1K 9K 166960K 15 0 counters 66 36K 37K 166960K 144 0 ioctlops 0 0K 4K 166960K 1812 0 iov 0 0K 24K 166960K 31 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1416 89K 89K 166960K 2140 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 143 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 8 25K 102K 166960K 865 0 sigio 0 0K 0K 166960K 5 0 proc 12 17K 164K 166960K 672 0 subproc 45 2K 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 92 0 in_multi 70 5K 7K 166960K 163 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 26 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 499 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 94 61K 185K 166960K 9452 0 UVM aobj 11 6K 6K 166960K 11 0 pinsyscall 17 34K 102K 166960K 2082 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 33 0 NDP 13 0K 2K 166960K 61 0 temp 45 9082K 9184K 166960K 47110 0 kqueue 5 8K 32K 166960K 187 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 86 0 86 1 0 1 1 0 8 1 rtentry 176 164 0 78 6 0 6 6 0 8 0 unpcb 144 481 0 473 6 0 6 6 0 8 5 syncache 336 6 0 6 1 1 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 386 0 383 12 5 7 7 0 8 6 arp 136 27 0 13 1 0 1 1 0 8 0 inpcb 328 903 0 900 11 4 7 10 0 8 6 nd6 152 36 0 19 2 0 2 2 0 8 0 pkpcb 40 3 0 3 3 2 1 1 0 8 1 kcovpl 48 10 0 5 1 0 1 1 0 8 0 ppxss 1192 29 0 29 1 0 1 1 0 8 1 pppxif 1576 4 0 4 2 1 1 1 0 8 1 pfstscr 40 9 0 5 1 0 1 1 0 8 0 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 5 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 5 0 5 2 2 0 1 0 8 0 pfsrclim 320 3 0 3 1 0 1 1 0 8 1 pfanchor 1288 10 0 2 2 1 1 1 0 8 0 pftag 88 3 0 1 1 0 1 1 0 8 0 pfqueue 320 2 0 2 1 1 0 1 0 8 0 pfstitem 24 70 0 20 1 0 1 1 0 8 0 pfstkey 128 74 0 24 2 0 2 2 0 8 0 pfstate 448 68 0 21 7 0 7 7 0 8 0 pfrule 1360 37 0 31 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 641 0 254 32 1 31 32 0 8 5 art_table 40 645 0 254 6 0 6 6 0 8 0 art_node 32 164 0 73 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 9 1 0 1 1 0 8 0 semapl 112 102 0 92 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2861 0 1397 93 0 93 93 0 8 0 ffsino 296 2867 0 1403 114 0 114 114 0 8 0 nchpl 144 4018 0 2306 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 vnodes 216 3460 0 0 193 0 193 193 0 8 0 namei 1024 13554 0 13554 4 2 2 3 0 8 2 percpumem 16 87 0 39 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 81 0 58 3 0 3 3 0 8 1 scsiplug 72 4 0 4 1 1 0 1 0 8 0 scxspl 216 18333 0 18333 10 2 8 8 1 8 8 plimitpl 152 318 0 304 1 0 1 1 0 8 0 sigapl 424 1193 0 1159 8 0 8 8 0 8 2 knotepl 120 545 0 0 17 0 17 17 0 8 0 kqueuepl 224 363 0 358 6 3 3 5 0 8 2 pipepl 344 187 0 160 3 0 3 3 0 8 0 fdescpl 528 1156 0 1142 3 0 3 3 0 8 0 filepl 160 7109 0 6967 17 1 16 17 0 8 6 lockfpl 104 279 0 279 1 0 1 1 0 8 1 lockfspl 48 128 0 128 1 0 1 1 0 8 1 sessionpl 144 50 0 45 1 0 1 1 0 8 0 pgrppl 48 68 0 55 1 0 1 1 0 8 0 ucredpl 104 1210 0 1200 1 0 1 1 0 8 0 zombiepl 144 1166 0 1159 1 0 1 1 0 8 0 processpl 1232 1193 0 1159 6 0 6 6 0 8 2 procpl 664 2364 0 2330 8 0 8 8 0 8 2 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 752 1496 0 1485 22 12 10 15 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 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 120 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 191 0 0 12 0 12 12 0 8 0 bufpl 280 7800 0 1670 438 0 438 438 0 8 0 anonpl 32 9476 0 0 77 0 77 77 0 246 0 amapchunkpl 152 31649 0 31436 29 1 28 29 0 158 10 amappl16 200 3820 0 3806 19 9 10 14 0 8 6 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 501 0 501 2 1 1 1 0 8 1 amappl13 176 135 0 131 1 0 1 1 0 8 0 amappl12 168 1421 0 1409 2 0 2 2 0 8 0 amappl11 160 5 0 4 2 1 1 1 0 8 0 amappl10 152 63 0 59 1 0 1 1 0 8 0 amappl9 144 263 0 262 1 0 1 1 0 8 0 amappl8 136 112 0 110 1 0 1 1 0 8 0 amappl7 128 156 0 149 1 0 1 1 0 8 0 amappl6 120 183 0 182 1 0 1 1 0 8 0 amappl5 112 103 0 98 1 0 1 1 0 8 0 amappl4 104 305 0 298 1 0 1 1 0 8 0 amappl3 96 6193 0 6156 4 0 4 4 0 8 0 amappl2 88 569 0 540 2 0 2 2 0 8 0 amappl1 80 13422 0 13145 18 4 14 17 0 8 2 amappl 88 8515 0 8444 5 0 5 5 0 92 1 uvmvnodes 80 121 0 0 3 0 3 3 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 dma2048 2048 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 72 0 72 2 1 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1156 0 1142 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1156 0 1142 1 0 1 1 0 8 0 vmmpekpl 168 11174 0 11120 3 0 3 3 0 8 0 vmmpepl 168 80688 0 79873 110 5 105 108 0 357 34 vmsppl 488 1155 0 1142 5 0 5 5 0 8 1 rwobjpl 80 24079 0 23567 32 4 28 31 0 8 2 pdppl 4096 2319 0 2284 105 50 55 85 0 8 20 pvpl 32 18177 0 0 147 0 147 147 0 265 0 pmappl 256 1155 0 1142 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 304 0 63 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ffs_indirtrunc(fffffd806e5de3f8,fffffffffffffff4,9b3c0,ffffffffffffffff,0,ffff80002a2c7be8) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd806e5de3f8,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a2c7d40) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8078b36ce0,ffff8000ffffd760) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd8078b36ce0) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8078b36620,fffffd8078b36ce0,ffff80002a2c7ea8) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffd760,ffffff9c,7e5904a791c0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2c8020) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2c8020) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e5904a79670, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299bdff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299bdff0) at sched_idle+0x371 sys/kern/kern_sched.c:192 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299bdff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299bdff0) at sched_idle+0x371 sys/kern/kern_sched.c:192 end trace frame: 0x0, count: -5