uvm_fault(0xfffffd806cb261c8, 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 340449 26079 32767 0x10 0 0 syz-executor * 90051 26079 32767 0x10 0x4000000 1K syz-executor fifo_write(ffff80002a0adbf0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8052b531d8,ffff80002a0adc88,8,fffffd807f7d3618) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8052b531d8,ffff800029fe6c00,107,0,1,62e03fbcc1e1d813,ffff80002a0addb0,fffffd8052b531d8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0addb0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8052b53100,ffff80002a0adf30,ffff80002a0adf60,ffff80002a0ade60,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371ce538,200002c0,ffffff9c,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0ae0e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0ae0e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb7368a67bc0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806cb261c8, 0x8, 0, 1) -> e ddb{1}> trace fifo_write(ffff80002a0adbf0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8052b531d8,ffff80002a0adc88,8,fffffd807f7d3618) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8052b531d8,ffff800029fe6c00,107,0,1,62e03fbcc1e1d813,ffff80002a0addb0,fffffd8052b531d8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0addb0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8052b53100,ffff80002a0adf30,ffff80002a0adf60,ffff80002a0ade60,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371ce538,200002c0,ffffff9c,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0ae0e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0ae0e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb7368a67bc0, count: -8 ddb{1}> show registers rdi 0xfffffd8052b531d8 rsi 0x1 rbp 0xffff80002a0adbe0 rbx 0xfffffd8052b531d8 rdx 0 rcx 0xffff8000371ce538 rax 0 r8 0 r9 0x1 r10 0xffff800029b7bff0 r11 0x1bbaf6d20a83e715 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a0adc88 r14 0xffff80002a0adbf0 r15 0x1 rip 0xffffffff828dc39e fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a0adbb0 ss 0 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{1}> show proc PROC (syz-executor) tid=90051 pid=26079 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371cea48,0xffffffff835eda70 process=0xffff8000329a7668 user=0xffff80002a0a9000, vmspace=0xfffffd806cb261c8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26079 340449 10094 32767 7 0x10 syz-executor *26079 90051 10094 32767 7 0x4000010 syz-executor 49363 310006 96701 32767 2 0x10 syz-executor 49363 523020 96701 32767 3 0x4000090 fifor syz-executor 4208 402375 88186 32767 3 0x90 nanoslp syz-executor 4208 57542 88186 32767 3 0x4000090 pipewr syz-executor 4208 184995 88186 32767 3 0x4000090 fsleep syz-executor 4208 457842 88186 32767 3 0x4000090 fsleep syz-executor 42112 477588 71078 32767 3 0x90 nanoslp syz-executor 42112 278971 71078 32767 3 0x4000090 kqread syz-executor 42112 240882 71078 32767 3 0x4000090 kqread syz-executor 42112 177519 71078 32767 3 0x4000090 fsleep syz-executor 83929 21191 33795 32767 3 0x90 nanoslp syz-executor 83929 347168 33795 32767 3 0x4000090 ttyin syz-executor 83929 503776 33795 32767 3 0x4000090 fsleep syz-executor 94299 49105 32787 32767 3 0x90 nanoslp syz-executor 33795 156891 21517 32767 3 0x90 nanoslp syz-executor 88186 201938 24487 32767 3 0x90 nanoslp syz-executor 81577 163988 79659 32767 3 0x10 biowait syz-executor 79659 391679 20534 0 3 0x82 wait syz-executor 10094 183070 37124 32767 3 0x90 nanoslp syz-executor 96701 217153 23100 32767 3 0x90 nanoslp syz-executor 71078 136575 90517 32767 3 0x90 nanoslp syz-executor 32787 448694 20534 0 3 0x82 wait syz-executor 21517 411174 20534 0 3 0x82 wait syz-executor 4851 324514 7224 32767 3 0x10 biowait syz-executor 90517 327848 20534 0 3 0x82 wait syz-executor 23100 87669 20534 0 3 0x82 wait syz-executor 24487 344469 20534 0 3 0x82 wait syz-executor 37124 457394 20534 0 3 0x82 wait syz-executor 7224 198191 20534 0 3 0x82 wait syz-executor 90793 485437 0 0 3 0x14200 bored sosplice 21754 221507 56637 0 3 0x100082 sbwait arp 56637 171040 78535 0 3 0x10008a sigsusp sh 78535 314022 1 0 3 0x80 wait syz-executor 20534 105357 78975 0 3 0x82 kqread syz-executor 78975 206031 46774 0 3 0x10008a sigsusp ksh 46774 56054 23273 0 3 0x98 kqread sshd-session 23273 323166 18469 0 3 0x92 kqread sshd-session 33443 485381 1 0 3 0x100083 ttyin getty 18469 488691 1 0 3 0x88 kqread sshd 19545 221494 24349 73 3 0x1100090 kqread syslogd 24349 347153 1 0 3 0x100082 sbwait syslogd 58435 275239 1 0 3 0x100080 kqread resolvd 87166 176345 82806 77 3 0x100092 kqread dhcpleased 62212 123701 82806 77 3 0x100092 kqread dhcpleased 82806 202191 1 0 3 0x80 kqread dhcpleased 16100 517955 0 0 3 0x14200 bored smr 71794 491733 0 0 2 0x14200 zerothread 31169 155358 0 0 3 0x14200 aiodoned aiodoned 6120 383968 0 0 3 0x14200 syncer update 35907 34481 0 0 3 0x14200 cleaner cleaner 32415 290033 0 0 3 0x14200 reaper reaper 93352 349885 0 0 3 0x14200 pgdaemon pagedaemon 32407 342235 0 0 3 0x14200 bored viomb 11105 327048 0 0 3 0x40014200 acpi0 acpi0 34753 210119 0 0 3 0x40014200 idle1 15802 463083 0 0 3 0x14200 bored softnet3 76344 349046 0 0 3 0x14200 bored softnet2 7988 211838 0 0 3 0x14200 bored softnet1 16170 442273 0 0 3 0x14200 bored softnet0 69699 389599 0 0 3 0x14200 bored systqmp 18755 164576 0 0 3 0x14200 bored systq 11543 379694 0 0 3 0x14200 tmoslp softclockmp 76018 353782 0 0 3 0x40014200 tmoslp softclock 5928 57330 0 0 3 0x40014200 idle0 1 205498 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 26079 (syz-executor) thread 0xffff8000371ce538 (90051) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835e5af0) #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 (0xfffffd805a3b54d8) #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 81577 (syz-executor) thread 0xffff80003239dbf8 (163988) exclusive rrwlock inode r = 0 (0xfffffd805a3b53c8) #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:3101 #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 (0xfffffd805a3b5f78) #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:3086 #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 4851 (syz-executor) thread 0xffff80003239d970 (324514) exclusive rrwlock inode r = 0 (0xfffffd805a3b51a8) #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 (0xfffffd8072ab90a8) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10204 10023K 10036K 166960K 11503 0 pcb 17 14K 16K 166960K 19 0 rtable 194 5K 7K 166960K 2483 0 pf 27 16K 16K 166960K 175 0 ifaddr 34 6K 8K 166960K 326 0 ifgroup 42 1K 2K 166960K 336 0 sysctl 3 0K 0K 166960K 3 0 counters 60 35K 36K 166960K 206 0 ioctlops 0 0K 2K 166960K 110 0 iov 0 0K 12K 166960K 59 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1468 92K 92K 166960K 2533 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 136 0 dirhash 15 2K 3K 166960K 27 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 27 101K 169K 166960K 2092 0 sigio 0 0K 0K 166960K 24 0 proc 56 78K 176K 166960K 2538 0 subproc 117 7K 13K 166960K 1118 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 200 0 in_multi 77 5K 7K 166960K 887 0 ether_multi 1 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 1349 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 270 82K 139K 166960K 16040 0 UVM aobj 28 6K 6K 166960K 33 0 pinsyscall 49 98K 134K 166960K 4860 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 62 0 NDP 11 0K 2K 166960K 232 0 temp 81 6824K 6893K 166960K 16562 0 kqueue 15 24K 31K 166960K 201 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 256 0 252 1 0 1 1 0 8 0 rtentry 112 877 0 787 4 0 4 4 0 8 1 unpcb 144 1423 0 1404 20 16 4 10 0 8 3 syncache 336 6 0 6 4 4 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 808 553 0 546 13 8 5 8 0 8 4 arp 120 156 0 142 1 0 1 1 0 8 0 ipq 40 4 0 0 1 0 1 1 0 8 0 ipqe 40 5 0 1 1 0 1 1 0 8 0 inpcb 336 1820 0 1807 36 26 10 21 0 8 8 nd6 136 242 0 222 1 0 1 1 0 8 0 kcovpl 48 86 0 77 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3540 0 3154 58 33 25 30 0 8 0 art_table 32 3541 0 3154 4 0 4 4 0 8 0 art_node 16 876 0 794 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 112 134 0 124 1 0 1 1 0 8 0 shmpl 112 30 0 5 1 0 1 1 0 8 0 dirhash 1024 27 0 8 3 0 3 3 0 8 0 dino2pl 256 2953 0 1276 105 0 105 105 0 8 0 ffsino 272 2953 0 1276 112 0 112 112 0 8 0 nchpl 144 4375 0 2581 67 0 67 67 0 8 0 uvmvnodes 80 4080 0 0 84 0 84 84 0 8 0 vnodes 216 4080 0 0 227 0 227 227 0 8 0 namei 1024 20648 0 20646 13 12 1 2 0 8 0 percpumem 16 117 0 73 1 0 1 1 0 8 0 kstatmem 264 164 0 146 2 0 2 2 0 8 0 scxspl 216 42342 0 42340 17 16 1 8 1 8 0 plimitpl 152 567 0 540 2 0 2 2 0 8 0 sigapl 424 2207 0 2149 11 2 9 9 0 8 0 futexpl 64 12694 0 12690 7 6 1 1 0 8 0 knotepl 120 430 0 0 10 0 10 10 0 8 0 kqueuepl 216 457 0 445 10 5 5 5 0 8 4 pipepl 320 460 0 427 9 3 6 6 0 8 1 fdescpl 496 2188 0 2149 12 4 8 8 0 8 1 filepl 152 10876 0 10598 34 15 19 22 0 8 5 lockfpl 104 379 0 377 1 0 1 1 0 8 0 lockfspl 48 107 0 105 1 0 1 1 0 8 0 sessionpl 144 90 0 73 1 0 1 1 0 8 0 pgrppl 48 187 0 162 1 0 1 1 0 8 0 ucredpl 104 1779 0 1760 1 0 1 1 0 8 0 zombiepl 144 2150 0 2149 1 0 1 1 0 8 0 processpl 1160 2207 0 2149 7 1 6 6 0 8 0 procpl 648 3617 0 3549 7 0 7 7 0 8 0 srpgc 96 4 0 4 1 0 1 1 0 8 1 sosppl 168 11 0 11 4 4 0 1 0 8 0 sockpl 664 3518 0 3482 61 47 14 23 0 8 10 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 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 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 262 0 0 30 0 30 30 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 442 0 0 23 0 23 23 0 8 0 bufpl 280 7778 0 1374 458 0 458 458 0 8 0 anonpl 24 333163 0 329571 88 23 65 76 0 185 27 amapchunkpl 152 50227 0 49621 41 7 34 35 0 158 9 amappl16 200 6220 0 6205 59 52 7 26 0 8 6 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 240 0 229 1 0 1 1 0 8 0 amappl13 176 23 0 23 2 2 0 1 0 8 0 amappl12 168 3902 0 3862 5 2 3 3 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 90 0 90 1 1 0 1 0 8 0 amappl9 144 163 0 163 1 1 0 1 0 8 0 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 228 0 217 1 0 1 1 0 8 0 amappl6 120 845 0 841 1 0 1 1 0 8 0 amappl5 112 399 0 390 1 0 1 1 0 8 0 amappl4 104 482 0 462 1 0 1 1 0 8 0 amappl3 96 8676 0 8558 5 1 4 4 0 8 0 amappl2 88 2527 0 2443 3 0 3 3 0 8 0 amappl1 80 17275 0 16693 15 1 14 15 0 8 0 amappl 88 15146 0 14934 6 0 6 6 0 92 1 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 32 0 5 1 0 1 1 0 8 0 uaddrrnd 24 2188 0 2149 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2188 0 2149 1 0 1 1 0 8 0 vmmpekpl 168 18991 0 18925 6 1 5 5 0 8 1 vmmpepl 168 136905 0 134803 134 28 106 112 0 357 7 vmsppl 440 2187 0 2149 9 2 7 7 0 8 1 rwobjpl 56 43591 0 38550 77 5 72 72 0 8 0 pdppl 4096 4383 0 4298 321 226 95 119 0 8 10 pvpl 32 32648 0 0 264 1 263 263 0 265 0 pmappl 248 2187 0 2149 5 1 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 726 0 311 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83426ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000371c3f40,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x716e779ec1f0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83426ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff8000371c3f40,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x716e779ec1f0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 fifo_write(ffff80002a0adbf0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8052b531d8,ffff80002a0adc88,8,fffffd807f7d3618) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8052b531d8,ffff800029fe6c00,107,0,1,62e03fbcc1e1d813,ffff80002a0addb0,fffffd8052b531d8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0addb0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8052b53100,ffff80002a0adf30,ffff80002a0adf60,ffff80002a0ade60,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371ce538,200002c0,ffffff9c,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0ae0e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0ae0e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb7368a67bc0, count: 7 ddb{1}> trace fifo_write(ffff80002a0adbf0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8052b531d8,ffff80002a0adc88,8,fffffd807f7d3618) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8052b531d8,ffff800029fe6c00,107,0,1,62e03fbcc1e1d813,ffff80002a0addb0,fffffd8052b531d8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0addb0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8052b53100,ffff80002a0adf30,ffff80002a0adf60,ffff80002a0ade60,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371ce538,200002c0,ffffff9c,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0ae0e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0ae0e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb7368a67bc0, count: -8