uvm_fault(0xfffffd806e7bde68, 0x10, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ISLOCKED+0x29: movq 0x10(%rax),%r14 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd806e7bde68, 0x10, 0, 1) -> e VOP_ISLOCKED(fffffd80617fd500) at VOP_ISLOCKED+0x29 sys/kern/vfs_vops.c:70 end trace frame: 0xffff800022d6b170, count: 0 ddb{0}> trace VOP_ISLOCKED(fffffd80617fd500) at VOP_ISLOCKED+0x29 sys/kern/vfs_vops.c:70 getnewvnode() at getnewvnode+0x1cd sys/kern/vfs_subr.c:417 ffs_vget() at ffs_vget+0xa2 sys/ufs/ffs/ffs_vfsops.c:1327 ffs_inode_alloc() at ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 ufs_mkdir(ffff800022d6b450) at ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1164 VOP_MKDIR(fffffd807efca270,ffff800022d6b5b0,ffff800022d6b600,ffff800022d6b4e0) at VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 domkdirat(ffff800020abe780,ffffff9c,200000c0,d00715ab) at domkdirat+0x121 sys/kern/vfs_syscalls.c:2983 syscall(ffff800022d6b780) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022d6b780) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff8b,0,2,f6bd634b010) at Xsyscall+0x128 end of kernel end trace frame: 0xf6e49722130, count: -9 ddb{0}> show registers rdi 0xffffffff81e65491 VOP_ISLOCKED+0x21 rsi 0xc6f rbp 0xffff800022d6b0f0 rbx 0x1726 __ALIGN_SIZE+0x726 rdx 0xc70 rcx 0xffff800022d88000 rax 0 r8 0x30 r9 0x7 r10 0xb037cbf15a9d8e84 r11 0xf8be77e4db919c0 r12 0xfffffd80617fd500 r13 0xffffffff82665460 vnode_free_list r14 0xfffffd80617fd500 r15 0xffff8000006acc00 rip 0xffffffff81e65499 VOP_ISLOCKED+0x29 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800022d6b0c0 ss 0x10 VOP_ISLOCKED+0x29: movq 0x10(%rax),%r14 ddb{0}> show proc PROC (syz-executor.0) pid=518728 stat=onproc flags process=0 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020abe018,0xffff800020abec80 process=0xffff800020add500 user=0xffff800022d66000, vmspace=0xfffffd806e7bde68 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 3908 32385 94808 0 2 0 syz-executor.1 16199 37297 20093 0 7 0 syz-executor.0 *16199 518728 20093 0 7 0x4000000 syz-executor.0 94808 399829 55400 0 3 0x82 nanosleep syz-executor.1 20093 229603 55400 0 3 0x82 nanosleep syz-executor.0 13208 327322 0 0 3 0x14200 acct acct 65431 70754 1 0 3 0x100083 ttyin getty 80888 86460 0 0 3 0x14200 bored sosplice 55400 369872 15766 0 3 0x82 thrsleep syz-fuzzer 55400 396008 15766 0 3 0x4000082 nanosleep syz-fuzzer 55400 232794 15766 0 3 0x4000082 thrsleep syz-fuzzer 55400 371238 15766 0 3 0x4000082 thrsleep syz-fuzzer 55400 438117 15766 0 3 0x4000082 thrsleep syz-fuzzer 55400 489844 15766 0 3 0x4000082 thrsleep syz-fuzzer 55400 70506 15766 0 3 0x4000082 thrsleep syz-fuzzer 55400 275534 15766 0 3 0x4000082 thrsleep syz-fuzzer 55400 425277 15766 0 3 0x4000082 nanosleep syz-fuzzer 55400 492144 15766 0 3 0x4000082 kqread syz-fuzzer 15766 461761 52930 0 3 0x10008a pause ksh 52930 147971 38954 0 3 0x92 select sshd 38954 221905 1 0 3 0x80 select sshd 65000 252857 40858 74 3 0x100092 bpf pflogd 40858 510085 1 0 3 0x80 netio pflogd 7639 166423 76187 73 3 0x100090 kqread syslogd 76187 365458 1 0 3 0x100082 netio syslogd 64797 190014 1 77 3 0x100090 poll dhclient 82960 420279 1 0 3 0x80 poll dhclient 63936 185435 0 0 2 0x14200 zerothread 26387 20556 0 0 3 0x14200 aiodoned aiodoned 39179 146096 0 0 3 0x14200 syncer update 42047 221813 0 0 3 0x14200 cleaner cleaner 1994 522384 0 0 3 0x14200 reaper reaper 94481 431728 0 0 3 0x14200 pgdaemon pagedaemon 34290 178710 0 0 3 0x14200 bored crynlk 99751 311011 0 0 3 0x14200 bored crypto 5473 246194 0 0 3 0x40014200 acpi0 acpi0 76341 224558 0 0 3 0x40014200 idle1 92244 144455 0 0 3 0x14200 bored softnet 10353 22437 0 0 3 0x14200 bored systqmp 79683 379293 0 0 3 0x14200 bored systq 64941 38598 0 0 3 0x40014200 bored softclock 7960 336481 0 0 3 0x40014200 idle0 33417 420329 0 0 3 0x14200 bored smr 1 178397 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 16199 (syz-executor.0) thread 0xffff800020abe780 (518728) exclusive rrwlock inode r = 0 (0xfffffd807ec52c48) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:571 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:2968 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8264bbd8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9563 6451K 8020K 78643K 15657 0 0 pcb 13 8K 8K 78643K 460 0 0 rtable 113 13K 13K 78643K 1703 0 0 ifaddr 185 23K 24K 78643K 542 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1576 0 0 iov 0 0K 32K 78643K 330 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1226 77K 78K 78643K 3336 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 31 0 0 VM map 8 4K 4K 78643K 11 0 0 sem 12 0K 0K 78643K 958 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 1965 0 0 sigio 0 0K 0K 78643K 49 0 0 proc 61 63K 95K 78643K 1368 0 0 subproc 32 2K 2K 78643K 323 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 164 0 0 in_multi 33 2K 2K 78643K 332 0 0 ether_multi 1 0K 0K 78643K 16 0 0 mrt 0 0K 0K 78643K 8 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 574 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 159 106K 106K 78643K 7921 0 0 UVM aobj 130 4K 4K 78643K 138 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 460 0 0 NDP 24 1K 1K 78643K 146 0 0 temp 169 3556K 4195K 78643K 73007 0 0 kqueue 0 0K 0K 78643K 22 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 71 0 65 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 199 0 197 1 0 1 1 0 8 0 rtentry 112 312 0 270 2 0 2 2 0 8 0 unpcb 120 1075 0 1065 1 0 1 1 0 8 0 syncache 264 14 0 14 4 4 0 1 0 8 0 tcpcb 544 1979 0 1974 4 2 2 2 0 8 1 inpcb 280 4109 0 4102 7 5 2 4 0 8 1 rttmr 72 3 0 3 3 3 0 1 0 8 0 nd6 48 44 0 40 1 0 1 1 0 8 0 pkpcb 40 17 0 17 4 3 1 1 0 8 1 ppxss 1128 44 0 44 7 6 1 1 0 8 1 pffrag 232 59 0 59 3 2 1 1 0 482 1 pffrnode 88 59 0 59 3 2 1 1 0 8 1 pffrent 40 2303 0 2303 3 2 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 188 0 107 1 0 1 1 0 8 0 pfstkey 112 188 0 107 3 0 3 3 0 8 0 pfstate 328 188 0 107 9 0 9 9 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1272 0 1058 23 9 14 15 0 8 0 art_table 32 1273 0 1058 2 0 2 2 0 8 0 art_node 16 311 0 273 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 24 1 0 1 1 0 8 0 semapl 112 956 0 946 1 0 1 1 0 8 0 shmpl 112 136 0 8 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4450 0 3047 46 0 46 46 0 8 0 ffsino 272 4450 0 3047 95 0 95 95 0 8 0 nchpl 144 7481 0 7042 60 33 27 60 0 8 8 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 vnodes: pool(0xffffffff82665480:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd80617fdf90 (p 0xfffffd80617fd000) namei 1024 26555 0 26554 1 0 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 7 0 1 1 0 1 1 0 8 0 vmpool 552 9 0 3 1 0 1 1 0 8 0 scsiplug 64 4 0 4 2 2 0 1 0 8 0 scxspl 192 24346 0 24346 15 12 3 4 0 8 3 plimitpl 152 171 0 163 1 0 1 1 0 8 0 sigapl 432 2114 0 2098 4 1 3 3 0 8 1 futexpl 56 50241 0 50241 1 0 1 1 0 8 1 knotepl 112 561 0 542 2 1 1 2 0 8 0 kqueuepl 104 617 0 615 1 0 1 1 0 8 0 pipepl 160 4190 0 4171 6 4 2 4 0 8 1 fdescpl 488 2115 0 2098 3 0 3 3 0 8 0 filepl 152 21090 0 20988 11 5 6 7 0 8 2 lockfpl 104 796 0 795 1 0 1 1 0 8 0 lockfspl 48 240 0 239 1 0 1 1 0 8 0 sessionpl 112 37 0 26 1 0 1 1 0 8 0 pgrppl 48 72 0 61 1 0 1 1 0 8 0 ucredpl 96 2067 0 2058 1 0 1 1 0 8 0 zombiepl 144 2098 0 2098 1 0 1 1 0 8 1 processpl 896 2132 0 2098 5 0 5 5 0 8 1 procpl 632 6266 0 6222 5 0 5 5 0 8 0 srpgc 64 25 0 25 7 6 1 1 0 8 1 sosppl 128 108 0 108 7 6 1 1 0 8 1 sockpl 384 5436 0 5417 16 12 4 8 0 8 2 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 16 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 192 0 0 23 2 21 23 0 8 1 mtagpl 80 55 0 0 1 0 1 1 0 8 0 mbufpl 256 467 0 0 25 0 25 25 0 8 0 bufpl 256 12135 0 5077 442 0 442 442 0 8 0 anonpl 16 272405 0 253767 123 23 100 105 0 124 9 amapchunkpl 152 16201 0 16043 32 18 14 20 0 158 6 amappl16 192 10368 0 9109 100 29 71 75 0 8 7 amappl15 184 532 0 529 1 0 1 1 0 8 0 amappl14 176 405 0 399 1 0 1 1 0 8 0 amappl13 168 245 0 245 4 3 1 1 0 8 1 amappl12 160 338 0 330 1 0 1 1 0 8 0 amappl11 152 106 0 91 1 0 1 1 0 8 0 amappl10 144 346 0 340 1 0 1 1 0 8 0 amappl9 136 1043 0 1040 1 0 1 1 0 8 0 amappl8 128 679 0 622 3 0 3 3 0 8 0 amappl7 120 456 0 448 1 0 1 1 0 8 0 amappl6 112 64 0 53 1 0 1 1 0 8 0 amappl5 104 602 0 586 1 0 1 1 0 8 0 amappl4 96 2126 0 2093 1 0 1 1 0 8 0 amappl3 88 787 0 776 1 0 1 1 0 8 0 amappl2 80 15496 0 15417 3 1 2 3 0 8 0 amappl1 72 58246 0 57802 26 15 11 20 0 8 1 amappl 80 6839 0 6785 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 137 0 8 3 0 3 3 0 8 0 uaddrrnd 24 2124 0 2098 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2124 0 2098 1 0 1 1 0 8 0 vmmpekpl 168 26472 0 26431 4 1 3 3 0 8 0 vmmpepl 168 284625 0 282089 206 46 160 160 0 357 47 vmsppl 368 2114 0 2098 2 0 2 2 0 8 0 pdppl 4096 4255 0 4208 7 0 7 7 0 8 0 pvpl 32 754392 0 733160 271 37 234 238 0 265 27 pmappl 232 2123 0 2101 3 1 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 639 0 16 18 0 18 18 0 8 0