uvm_fault(0xffffffff839f2648, 0xffff800020085ff8, 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 *393167 89934 0 0x2 0 0K syz-executor ffs_indirtrunc(fffffd80698da3a0,fffffffffffffff4,133000,ffffffffffffffff,0,ffff80002a340458) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd80698da3a0,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a3405b0) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8065ce87f8,ffff8000fffef4d8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd8065ce87f8) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8065ce8570,fffffd8065ce87f8,ffff80002a340718) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000fffef4d8,ffffff9c,772da9d4a4f0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a340890) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a340890) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x772da9d4a9a0, 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(0xffffffff839f2648, 0xffff800020085ff8, 0, 1) -> d ddb{0}> trace ffs_indirtrunc(fffffd80698da3a0,fffffffffffffff4,133000,ffffffffffffffff,0,ffff80002a340458) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd80698da3a0,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a3405b0) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8065ce87f8,ffff8000fffef4d8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd8065ce87f8) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8065ce8570,fffffd8065ce87f8,ffff80002a340718) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000fffef4d8,ffffff9c,772da9d4a4f0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a340890) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a340890) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x772da9d4a9a0, count: -9 ddb{0}> show registers rdi 0x2 rsi 0x2 rbp 0xffff80002a340330 rbx 0x7ff rdx 0 rcx 0xffff8000fffef4d8 rax 0xffff800020082000 r8 0xffffffffffffffff r9 0xffff80002a340458 r10 0xa0149d24a992ee81 r11 0x904842f282fa513 r12 0xfffffffffffff7f6 r13 0x1 r14 0x2 r15 0xfffffd80698da3a0 rip 0xffffffff8200ff09 ffs_indirtrunc+0x699 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a340240 ss 0x10 ffs_indirtrunc+0x699: movq 0(%rax,%rbx,8),%rbx ddb{0}> show proc PROC (syz-executor) tid=393167 pid=89934 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=0xffff80002a243c98,0xffff8000fffef250 process=0xffff8000ffff7028 user=0xffff80002a33b000, vmspace=0xfffffd800b063d58 estcpu=36, cpticks=19, pctcpu=0.1, user=0, sys=19, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *89934 393167 16519 0 7 0x2 syz-executor 16519 268059 50385 0 3 0x82 wait syz-executor 50385 406924 85248 0 3 0x10008a sigsusp ksh 85248 16268 26332 0 3 0x98 kqread sshd-session 26332 266929 98809 0 3 0x92 kqread sshd-session 78771 212587 1 0 3 0x100083 ttyopn getty 98809 507462 1 0 3 0x88 kqread sshd 55553 18391 29876 74 3 0x1100092 bpf pflogd 29876 187216 1 0 3 0x80 sbwait pflogd 77684 274210 38506 73 3 0x1100090 kqread syslogd 38506 307961 1 0 3 0x100082 sbwait syslogd 70130 201939 1 0 3 0x100080 kqread resolvd 41559 23839 63382 77 3 0x100092 kqread dhcpleased 60986 494441 63382 77 3 0x100092 kqread dhcpleased 63382 235988 1 0 3 0x80 kqread dhcpleased 87874 317454 0 0 3 0x14200 bored smr 86947 304039 0 0 2 0x14200 zerothread 63914 44451 0 0 3 0x14200 aiodoned aiodoned 31365 288154 0 0 3 0x14200 syncer update 94536 140911 0 0 3 0x14200 cleaner cleaner 41062 336086 0 0 3 0x14200 reaper reaper 2229 390878 0 0 3 0x14200 pgdaemon pagedaemon 95923 254810 0 0 3 0x14200 bored viomb 4116 344575 0 0 3 0x40014200 acpi0 acpi0 21461 469602 0 0 7 0x40014200 idle1 25697 131507 0 0 3 0x14200 bored softnet1 29528 445947 0 0 3 0x14200 bored softnet0 5557 324470 0 0 3 0x14200 smrbar systqmp 82636 390987 0 0 3 0x14200 bored systq 51296 137832 0 0 3 0x14200 tmoslp softclockmp 98565 384762 0 0 3 0x40014200 tmoslp softclock 60753 9198 0 0 3 0x40014200 idle0 1 281516 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 89934 (syz-executor) thread 0xffff8000fffef4d8 (393167) exclusive rrwlock inode r = 0 (0xfffffd80698da440) #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 (0xfffffd806e5cfef0) #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 (0xffffffff83a24180) #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 5557 (systqmp) thread 0xffff8000ffffea60 (324470) shared rwlock systqmp r = 0 (0xffffffff83899738) #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 11086 12089K 12386K 166960K 12877 0 pcb 17 14K 16K 166960K 323 0 rtable 126 6K 8K 166960K 481 0 pf 31 17K 25K 166960K 199 0 ifaddr 24 3K 7K 166960K 74 0 ifgroup 40 1K 2K 166960K 118 0 sysctl 4 1K 9K 166960K 15 0 counters 64 36K 37K 166960K 132 0 ioctlops 0 0K 4K 166960K 1813 0 iov 0 0K 12K 166960K 17 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1420 89K 89K 166960K 2056 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 25 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 7 21K 93K 166960K 574 0 sigio 0 0K 0K 166960K 10 0 proc 72 115K 164K 166960K 606 0 subproc 45 2K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 60 0 in_multi 43 3K 7K 166960K 129 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 17 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 440 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 154 132K 176K 166960K 7151 0 UVM aobj 77 3K 3K 166960K 78 0 pinsyscall 32 64K 102K 166960K 1773 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 15 0 NDP 9 0K 2K 166960K 46 0 temp 64 9087K 9168K 166960K 29406 0 kqueue 13 20K 30K 166960K 125 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 120 100 0 97 2 1 1 2 0 8 0 rtentry 176 133 0 88 6 0 6 6 0 8 1 unpcb 144 515 0 498 4 1 3 4 0 8 2 syncache 336 10 0 10 2 1 1 1 0 8 1 tcpcb 736 222 0 218 8 1 7 7 0 8 6 arp 136 20 0 14 1 0 1 1 0 8 0 inpcb 328 743 0 736 9 2 7 7 0 8 6 nd6 152 25 0 15 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 1 1 1 0 8 1 kcovpl 48 8 0 3 1 0 1 1 0 8 0 mppekey 1024 7 0 7 1 0 1 1 0 8 1 ppxss 1192 21 0 21 1 0 1 1 0 8 1 pppxif 1576 8 0 8 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 7 0 3 2 1 1 1 0 482 0 pffrnode 88 6 0 2 2 1 1 1 0 8 0 pffrent 40 11 0 7 2 1 1 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 5 16 21 0 8 16 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pfstitem 24 54 0 3 1 0 1 1 0 8 0 pfstkey 128 60 0 9 2 0 2 2 0 8 0 pfstate 448 56 0 6 6 0 6 6 0 8 0 pfrule 1360 90 0 85 7 1 6 6 0 8 5 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 577 0 307 29 2 27 29 0 8 7 art_table 40 579 0 307 5 0 5 5 0 8 0 art_node 32 133 0 83 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 23 0 13 1 0 1 1 0 8 0 shmpl 112 75 0 1 3 0 3 3 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2505 0 1049 93 0 93 93 0 8 0 ffsino 296 2506 0 1050 114 0 114 114 0 8 0 nchpl 144 3301 0 1599 64 0 64 64 0 8 0 rtmask 32 6 0 6 1 0 1 1 0 8 1 vnodes 216 3043 0 0 170 0 170 170 0 8 0 namei 1024 11817 0 11817 2 1 1 2 0 8 1 percpumem 16 81 0 34 1 0 1 1 0 8 0 kstatmem 264 62 0 40 3 0 3 3 0 8 1 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 16785 0 16785 11 3 8 8 1 8 8 plimitpl 152 187 0 170 1 0 1 1 0 8 0 sigapl 424 901 0 861 7 1 6 7 0 8 0 knotepl 120 303 0 0 10 0 10 10 0 8 0 kqueuepl 224 207 0 198 4 1 3 3 0 8 2 pipepl 344 148 0 121 3 0 3 3 0 8 0 fdescpl 528 885 0 864 3 0 3 3 0 8 1 filepl 160 5949 0 5784 17 2 15 17 0 8 5 lockfpl 104 438 0 436 2 0 2 2 0 8 1 lockfspl 48 198 0 196 1 0 1 1 0 8 0 sessionpl 144 78 0 69 1 0 1 1 0 8 0 pgrppl 48 89 0 72 1 0 1 1 0 8 0 ucredpl 104 1039 0 1026 1 0 1 1 0 8 0 zombiepl 144 868 0 861 1 0 1 1 0 8 0 processpl 1232 901 0 861 5 0 5 5 0 8 0 procpl 664 1609 0 1569 6 0 6 6 0 8 1 sosppl 176 3 0 3 2 1 1 1 0 8 1 sockpl 752 1366 0 1339 15 5 10 14 0 8 7 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 127 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 33 0 0 5 0 5 5 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 279 0 0 17 0 17 17 0 8 0 bufpl 280 6557 0 427 439 0 439 439 0 8 0 anonpl 32 11412 0 0 92 0 92 92 0 246 0 amapchunkpl 152 23025 0 22785 40 11 29 34 0 158 12 amappl16 200 3543 0 3526 33 22 11 27 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 437 0 436 1 0 1 1 0 8 0 amappl13 176 136 0 124 1 0 1 1 0 8 0 amappl12 168 1148 0 1128 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 1 0 1 0 8 0 amappl10 152 71 0 57 1 0 1 1 0 8 0 amappl9 144 262 0 262 1 1 0 1 0 8 0 amappl8 136 111 0 109 1 0 1 1 0 8 0 amappl7 128 157 0 143 1 0 1 1 0 8 0 amappl6 120 179 0 177 1 0 1 1 0 8 0 amappl5 112 106 0 94 1 0 1 1 0 8 0 amappl4 104 319 0 301 1 0 1 1 0 8 0 amappl3 96 4425 0 4367 4 0 4 4 0 8 1 amappl2 88 584 0 522 2 0 2 2 0 8 0 amappl1 80 12708 0 12148 18 1 17 17 0 8 2 amappl 88 6326 0 6240 5 0 5 5 0 92 0 uvmvnodes 80 108 0 0 3 0 3 3 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 1 1 1 0 8 1 dma128 128 255 0 255 2 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 77 0 1 2 0 2 2 0 8 0 uaddrrnd 24 886 0 865 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 886 0 865 1 0 1 1 0 8 0 vmmpekpl 168 9253 0 9207 3 0 3 3 0 8 0 vmmpepl 168 65373 0 63961 113 1 112 112 0 357 25 vmsppl 488 885 0 865 6 1 5 5 0 8 2 rwobjpl 80 21448 0 20465 35 1 34 34 0 8 4 pdppl 4096 1779 0 1730 117 46 71 85 0 8 22 pvpl 32 17735 0 0 144 0 144 144 0 265 0 pmappl 256 885 0 865 3 0 3 3 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 319 0 55 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ffs_indirtrunc(fffffd80698da3a0,fffffffffffffff4,133000,ffffffffffffffff,0,ffff80002a340458) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd80698da3a0,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a3405b0) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8065ce87f8,ffff8000fffef4d8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd8065ce87f8) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8065ce8570,fffffd8065ce87f8,ffff80002a340718) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000fffef4d8,ffffff9c,772da9d4a4f0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a340890) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a340890) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x772da9d4a9a0, 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