uvm_fault(0xfffffd806c2ac8a0, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 TID PID UID PRFLAGS PFLAGS CPU COMMAND *418319 85490 32767 0x10 0x4000000 0 syz-executor 140239 52265 32767 0x10 0 1 syz-executor fifo_write(ffff8000337bf7a0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8052b49060,ffff8000337bf838,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8052b49060,ffff80002a081000,100,0,1,e62b56ffb2d547a1,ffff8000337bf960,fffffd8052b49060,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000337bf960) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd807d6377d8,ffff8000337bfae0,ffff8000337bfb10,ffff8000337bfa10,ffff80002a081000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800031b86f88,200010c0,4,200004c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff8000337bfc90) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000337bfc90) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7fdc3dc4030, count: 7 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(0xfffffd806c2ac8a0, 0x8, 0, 1) -> e ddb{0}> trace fifo_write(ffff8000337bf7a0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8052b49060,ffff8000337bf838,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8052b49060,ffff80002a081000,100,0,1,e62b56ffb2d547a1,ffff8000337bf960,fffffd8052b49060,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000337bf960) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd807d6377d8,ffff8000337bfae0,ffff8000337bfb10,ffff8000337bfa10,ffff80002a081000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800031b86f88,200010c0,4,200004c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff8000337bfc90) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000337bfc90) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7fdc3dc4030, count: -8 ddb{0}> show registers rdi 0xfffffd8052b49060 rsi 0x1af7 __ALIGN_SIZE+0xaf7 rbp 0xffff8000337bf790 rbx 0xfffffd8052b49060 rdx 0xffff80002a12b000 rcx 0x1af6 __ALIGN_SIZE+0xaf6 rax 0 r8 0 r9 0x1 r10 0xffffffff83425ff0 cpu_info_full_primary+0x1ff0 r11 0x33a756fe6ca1b56e r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff8000337bf838 r14 0xffff8000337bf7a0 r15 0x1 rip 0xffffffff82e22ede fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000337bf760 ss 0 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{0}> show proc PROC (syz-executor) tid=418319 pid=85490 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800031b87c30,0xffff800029fe79b0 process=0xffff80002dd70db0 user=0xffff8000337ba000, vmspace=0xfffffd806c2ac8a0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 19020 452356 42641 32767 2 0x10 syz-executor 85490 181791 52265 32767 2 0x10 syz-executor *85490 418319 52265 32767 7 0x4000010 syz-executor 79054 220423 84081 32767 2 0x10 syz-executor 79054 208543 84081 32767 3 0x4000090 kqsel syz-executor 79054 201700 84081 32767 3 0x4000090 fsleep syz-executor 79054 358623 84081 32767 3 0x4000090 fsleep syz-executor 62827 424646 49743 32767 2 0x490 syz-executor 62827 433015 49743 32767 3 0x4000090 ttyin syz-executor 62827 405821 49743 32767 3 0x4000090 fsleep syz-executor 88588 333377 72120 32767 2 0x10 syz-executor 88588 429713 72120 32767 3 0x4000090 kqsel syz-executor 88588 465163 72120 32767 3 0x4000090 fsleep syz-executor 88588 198487 72120 32767 3 0x4000090 fsleep syz-executor 70897 509338 39551 32767 2 0x10 syz-executor 70897 459073 39551 32767 3 0x4000090 sbwait syz-executor 70897 129552 39551 32767 3 0x4000090 fsleep syz-executor 37069 52063 63221 32767 2 0x10 syz-executor 63221 515236 74716 0 3 0x82 wait syz-executor 42641 457140 31474 32767 2 0x490 syz-executor 31474 285513 74716 0 3 0x82 wait syz-executor 32974 46383 1291 32767 2 0x10 syz-executor 1291 294372 74716 0 3 0x82 wait syz-executor 84081 148516 76766 32767 2 0x490 syz-executor 76766 416406 74716 0 3 0x82 wait syz-executor 39551 323490 91498 32767 2 0x10 syz-executor 91498 191041 74716 0 3 0x82 wait syz-executor 49743 146067 74721 32767 2 0x10 syz-executor 74721 327462 74716 0 3 0x82 wait syz-executor 52265 140239 88140 32767 7 0x10 syz-executor 88140 287014 74716 0 3 0x82 wait syz-executor 72120 380272 32360 32767 2 0x10 syz-executor 32360 91441 74716 0 3 0x82 wait syz-executor 400 196338 8936 0 3 0x100082 sbwait arp 8936 374556 986 0 3 0x10008a sigsusp sh 986 479249 1 0 3 0x80 wait syz-executor 35421 471696 0 0 3 0x14200 bored sosplice 74716 307357 65673 0 2 0x2 syz-executor 65673 371757 8642 0 3 0x10008a sigsusp ksh 8642 430151 91653 0 3 0x98 kqread sshd-session 91653 431565 18281 0 3 0x92 kqread sshd-session 58774 259962 1 0 3 0x100083 ttyin getty 18281 202667 1 0 3 0x88 kqread sshd 53412 47395 28299 73 3 0x1100090 kqread syslogd 28299 32799 1 0 3 0x100082 sbwait syslogd 69066 515177 1 0 3 0x100080 kqread resolvd 21024 466224 53100 77 3 0x100092 kqread dhcpleased 98888 29454 53100 77 3 0x100092 kqread dhcpleased 53100 204580 1 0 3 0x80 kqread dhcpleased 70239 335773 0 0 3 0x14200 bored smr 69151 265379 0 0 2 0x14200 zerothread 75143 329720 0 0 3 0x14200 aiodoned aiodoned 69835 165950 0 0 3 0x14200 syncer update 74386 367394 0 0 3 0x14200 cleaner cleaner 81278 97545 0 0 3 0x14200 reaper reaper 34612 252751 0 0 3 0x14200 pgdaemon pagedaemon 1509 458016 0 0 3 0x14200 bored viomb 17076 278494 0 0 3 0x40014200 acpi0 acpi0 86697 359393 0 0 3 0x40014200 idle1 45402 420405 0 0 3 0x14200 bored softnet3 59957 364881 0 0 3 0x14200 bored softnet2 45942 239791 0 0 3 0x14200 bored softnet1 4660 281544 0 0 3 0x14200 bored softnet0 67836 344171 0 0 3 0x14200 bored systqmp 32600 402310 0 0 3 0x14200 bored systq 3267 464750 0 0 3 0x14200 tmoslp softclockmp 15 284011 0 0 2 0x40014200 softclock 29742 440672 0 0 3 0x40014200 idle0 1 278886 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 85490 (syz-executor) thread 0xffff800031b86f88 (418319) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835a30b8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646 #7 ufs_direnter+0x7d1 sys/ufs/ufs/ufs_lookup.c:833 #8 ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1764 #9 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #10 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #11 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805a513b40) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728 #10 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #11 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #12 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 37069 (syz-executor) thread 0xffff800029fe7208 (52063) exclusive rrwlock inode r = 0 (0xfffffd8069986c48) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80699861a8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 32974 (syz-executor) thread 0xffff800033996ce0 (46383) exclusive rrwlock inode r = 0 (0xfffffd80699866f8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3100 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd805166dc48) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3085 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 10029K 10036K 166960K 12868 0 pcb 17 24K 26K 166960K 27 0 rtable 250 7K 7K 166960K 17496 0 pf 31 16K 16K 166960K 1090 0 ifaddr 42 15K 18K 166960K 2144 0 ifgroup 50 2K 2K 166960K 2157 0 sysctl 4 1K 5K 166960K 19 0 counters 64 36K 36K 166960K 1112 0 ioctlops 0 0K 2K 166960K 971 0 iov 0 0K 32K 166960K 1947 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1468 92K 92K 166960K 14129 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 433 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 988 0 dirhash 21 4K 5K 166960K 471 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 27 101K 169K 166960K 27454 0 sigio 1 0K 0K 166960K 788 0 proc 56 78K 176K 166960K 17408 0 subproc 117 7K 13K 166960K 8437 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 3 0K 0K 166960K 6778 0 in_multi 102 7K 7K 166960K 6834 0 ether_multi 3 0K 0K 166960K 137 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 271 1208K 1208K 166960K 271 0 exec 0 0K 1K 166960K 11244 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 281 83K 140K 166960K 225605 0 UVM aobj 131 8K 8K 166960K 138 0 pinsyscall 49 98K 134K 166960K 42000 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 1K 166960K 1796 0 NDP 11 0K 2K 166960K 1592 0 temp 79 6824K 6952K 166960K 201018 0 kqueue 13 20K 36K 166960K 3705 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 3680 0 3675 21 20 1 5 0 8 0 rtentry 112 6096 0 5978 13 9 4 4 0 8 0 unpcb 144 25483 0 25465 138 135 3 10 0 8 1 syncache 336 119 0 119 39 38 1 1 0 8 1 tcpqe 32 48 0 48 25 24 1 1 0 8 1 tcpcb 808 14207 0 14194 187 179 8 15 0 8 6 arp 120 1078 0 1059 1 0 1 1 0 8 0 ipq 40 100 0 97 4 3 1 1 0 8 0 ipqe 40 931 0 928 4 3 1 1 0 8 0 inpcb 336 35464 0 35444 225 214 11 19 0 8 8 ip6q 72 4 0 4 4 4 0 1 0 8 0 ip6af 40 8 0 8 4 4 0 1 0 8 0 nd6 136 1821 0 1790 5 3 2 2 0 8 0 kcovpl 48 649 0 640 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 24835 0 24335 214 182 32 33 0 8 0 art_table 32 24836 0 24335 9 4 5 5 0 8 0 art_node 16 6095 0 5987 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 6 1 0 1 1 0 8 0 semapl 112 982 0 972 1 0 1 1 0 8 0 shmpl 112 135 0 7 4 0 4 4 0 8 0 dirhash 1024 338 0 307 12 8 4 5 0 8 0 dino2pl 256 33521 0 30277 207 4 203 203 0 8 0 ffsino 272 33521 0 30277 217 0 217 217 0 8 0 nchpl 144 61088 0 58111 112 1 111 111 0 8 0 uvmvnodes 80 10456 0 0 214 0 214 214 0 8 0 vnodes 216 10456 0 0 581 0 581 581 0 8 0 namei 1024 273691 0 273689 57 56 1 2 0 8 0 percpumem 16 570 0 524 1 0 1 1 0 8 0 kstatmem 264 1070 0 1048 2 0 2 2 0 8 0 scxspl 216 324299 0 324299 78 75 3 8 1 8 3 plimitpl 152 9343 0 9317 2 0 2 2 0 8 0 sigapl 424 26443 0 26385 23 15 8 9 0 8 0 futexpl 64 295884 0 295878 30 29 1 1 0 8 0 knotepl 120 1439 0 0 19 1 18 19 0 8 0 kqueuepl 216 8500 0 8489 82 80 2 8 0 8 1 pipepl 320 5721 0 5690 56 53 3 9 0 8 0 fdescpl 496 26424 0 26385 16 10 6 8 0 8 0 filepl 152 185994 0 185714 141 125 16 23 0 8 2 lockfpl 104 7035 0 7029 5 4 1 2 0 8 0 lockfspl 48 2187 0 2182 1 0 1 1 0 8 0 sessionpl 144 543 0 526 1 0 1 1 0 8 0 pgrppl 48 1911 0 1886 1 0 1 1 0 8 0 ucredpl 104 38487 0 38468 1 0 1 1 0 8 0 zombiepl 144 26385 0 26385 1 0 1 1 0 8 1 processpl 1160 26443 0 26385 14 8 6 6 0 8 0 procpl 648 59143 0 59074 12 5 7 7 0 8 0 srpgc 96 41 0 41 18 18 0 1 0 8 0 sosppl 168 327 0 327 32 31 1 1 0 8 1 sockpl 664 65242 0 65200 406 393 13 24 0 8 8 mcl64k 65536 19 0 0 3 0 3 3 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 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 708 0 0 30 8 22 28 0 8 0 mtagpl 96 35 0 0 1 0 1 1 0 8 0 mbufpl 256 5479 0 0 279 0 279 279 0 8 0 bufpl 280 46789 0 36333 748 1 747 747 0 8 0 anonpl 24 3272694 0 3261604 491 398 93 127 0 185 0 amapchunkpl 152 742842 0 742075 300 252 48 52 0 158 13 amappl16 200 76521 0 76220 417 389 28 51 0 8 3 amappl15 192 23 0 23 10 10 0 1 0 8 0 amappl14 184 1160 0 1148 1 0 1 1 0 8 0 amappl13 176 32 0 32 15 15 0 1 0 8 0 amappl12 168 35475 0 35435 12 9 3 3 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 41 0 39 1 0 1 1 0 8 0 amappl9 144 224 0 223 3 2 1 1 0 8 0 amappl8 136 75 0 73 1 0 1 1 0 8 0 amappl7 128 1139 0 1127 1 0 1 1 0 8 0 amappl6 120 5403 0 5400 1 0 1 1 0 8 0 amappl5 112 2224 0 2214 1 0 1 1 0 8 0 amappl4 104 1871 0 1852 1 0 1 1 0 8 0 amappl3 96 129738 0 129623 6 2 4 4 0 8 0 amappl2 88 27842 0 27755 3 0 3 3 0 8 0 amappl1 80 120515 0 119930 20 6 14 15 0 8 0 amappl 88 219517 0 219296 8 2 6 6 0 92 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 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 137 0 7 3 0 3 3 0 8 0 uaddrrnd 24 26424 0 26385 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 26424 0 26385 1 0 1 1 0 8 0 vmmpekpl 168 218749 0 218707 8 4 4 5 0 8 0 vmmpepl 168 1618114 0 1615688 369 247 122 136 0 357 1 vmsppl 440 26423 0 26385 15 9 6 7 0 8 0 rwobjpl 56 405340 0 393519 212 41 171 173 0 8 0 pdppl 4096 52855 0 52770 1390 1301 89 119 0 8 4 pvpl 32 53152 0 0 423 0 423 423 0 265 0 pmappl 248 26423 0 26385 8 5 3 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2869 0 1992 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace fifo_write(ffff8000337bf7a0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8052b49060,ffff8000337bf838,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8052b49060,ffff80002a081000,100,0,1,e62b56ffb2d547a1,ffff8000337bf960,fffffd8052b49060,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000337bf960) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd807d6377d8,ffff8000337bfae0,ffff8000337bfb10,ffff8000337bfa10,ffff80002a081000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800031b86f88,200010c0,4,200004c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff8000337bfc90) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000337bfc90) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7fdc3dc4030, count: -8 ddb{0}> machine ddbcpu 1